Hay feeding increased in central Texas

5 years 11 months ago
Rangelands and pastures in central Texas received some rain, but still needed more, and hay feeding increased. Livestock conditions were deteriorating, due to drought and heat. Producers needed rain to plow small grain seedbeds to prepare for planting. Soil moisture levels were short in nearly all counties in the district. Bryan-College Station Eagle (Texas), Aug. 20, 2019

SPC Severe Thunderstorm Watch 609 Status Reports

5 years 11 months ago
WW 0609 Status Updates
040- STATUS REPORT ON WW 609 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..KERR..08/21/19 ATTN...WFO...OKX...BOX...ALY...GYX... STATUS REPORT FOR WS 609 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS CTC001-003-005-007-009-011-013-015-212040- CT . CONNECTICUT COUNTIES INCLUDED ARE FAIRFIELD HARTFORD LITCHFIELD MIDDLESEX NEW HAVEN NEW LONDON TOLLAND WINDHAM MEC031-212040- ME . MAINE COUNTIES INCLUDED ARE YORK MAC001-003-005-007-009-011-013-015-017-019-021-023-025-027- 212040- MA . MASSACHUSETTS COUNTIES INCLUDED ARE BARNSTABLE BERKSHIRE BRISTOL Read more

SPC MD 1826

5 years 11 months ago
MD 1826 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR THE COLORADO FRONT RANGE TO PORTIONS OF SOUTHEAST WYOMING
Mesoscale Discussion 1826 NWS Storm Prediction Center Norman OK 0151 PM CDT Wed Aug 21 2019 Areas affected...The Colorado front range to portions of southeast Wyoming Concerning...Severe potential...Watch possible Valid 211851Z - 212045Z Probability of Watch Issuance...40 percent SUMMARY...Thunderstorms will develop/intensify through early afternoon and pose a threat for severe hail and brief severe wind gusts. The potential coverage of the threat, and hence the need for a Severe Thunderstorm Watch, is uncertain. DISCUSSION...Strong heating and an approaching weak mid-upper-level low are contributing to deepening cumulus and initial thunderstorm development over the Colorado and Wyoming high terrain. A moist and modifying continental polar air mass has pushed up to the foothills, creating an environment supportive of thunderstorms that varies little with latitude from the Raton Mesa northward to the Laramie Mountains. By early afternoon, forecast soundings suggest this environment will consist of 1500-2500 J/kg of MLCAPE (higher toward the Mountains) with little convective inhibition, moderate straight-line vertical wind shear confined mostly in the 1-4 km layer (supportive of multicell to some transient supercell structures), and DCAPE of 1200-1500 J/kg. Given storm rotation and steep low-to-mid level lapse rates, severe hail is the main threat with these storms, but brief severe wind gusts are possible in the stronger downdrafts. Moderate low-level southeasterly upslope flow combined with relatively weak west-northwesterly to westerly flow at 500-300 mb suggests a slow south to southeast motion to the cells, thus limiting the eastward extent of the threat. The main uncertainty concerning the need for a Severe Thunderstorm Watch is the coverage of the hail/wind threat. The coverage of storms that mature and move into the foothills will be monitored in the next hour or so to better determine if a Watch will be needed. ..Coniglio/Guyer.. 08/21/2019 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PUB...BOU...CYS...RIW... LAT...LON 42860625 42760567 41960518 40150447 39820440 38480387 37790355 37460341 37110354 37050408 37090466 37430506 38260552 39540598 40280617 41270651 42560648 42860625 Read more

SPC Day 2 Fire Weather Outlook

5 years 11 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0146 PM CDT Wed Aug 21 2019 Valid 221200Z - 231200Z Minor adjustments were made to ongoing elevated lines based on 12Z high resolution forecast guidance. However, no significant changes were made. See previous discussion below. ..Bentley.. 08/21/2019 .PREV DISCUSSION... /ISSUED 0143 AM CDT Wed Aug 21 2019/ ...Synopsis... An upper-level shortwave trough will continue to move east-northeast across the northern Intermountain West tomorrow. An associated surface cold front will continue to move south and east into the Great Basin and through much of the northern Rockies and northern California. With a pre-frontal surface pressure trough running parallel and ahead of the cold front, the surface pressure gradient will strengthen across the Intermountain West along and ahead of the cold front. Elevated conditions are expected from northern Arizona/southern Nevada stretching northeastward into central Wyoming along/ahead of the surface cold front. Southwest-westerly sustained surface winds of 15-20 mph and RH values of 8-20% are likely to develop during tomorrow afternoon and evening across this area. High clouds may drift into northern Arizona, which could limit the southern extent of the current elevated area. Elevated conditions are also likely to develop across central/eastern portions of the Snake River Plain and vicinity tomorrow afternoon. The cold front will have passed through the area, but daytime heating should warm temperatures and mix the boundary layer enough to result in west-southwest winds of 15-25 mph and RH values of 15-20%. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

5 years 11 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0146 PM CDT Wed Aug 21 2019 Valid 221200Z - 231200Z Minor adjustments were made to ongoing elevated lines based on 12Z high resolution forecast guidance. However, no significant changes were made. See previous discussion below. ..Bentley.. 08/21/2019 .PREV DISCUSSION... /ISSUED 0143 AM CDT Wed Aug 21 2019/ ...Synopsis... An upper-level shortwave trough will continue to move east-northeast across the northern Intermountain West tomorrow. An associated surface cold front will continue to move south and east into the Great Basin and through much of the northern Rockies and northern California. With a pre-frontal surface pressure trough running parallel and ahead of the cold front, the surface pressure gradient will strengthen across the Intermountain West along and ahead of the cold front. Elevated conditions are expected from northern Arizona/southern Nevada stretching northeastward into central Wyoming along/ahead of the surface cold front. Southwest-westerly sustained surface winds of 15-20 mph and RH values of 8-20% are likely to develop during tomorrow afternoon and evening across this area. High clouds may drift into northern Arizona, which could limit the southern extent of the current elevated area. Elevated conditions are also likely to develop across central/eastern portions of the Snake River Plain and vicinity tomorrow afternoon. The cold front will have passed through the area, but daytime heating should warm temperatures and mix the boundary layer enough to result in west-southwest winds of 15-25 mph and RH values of 15-20%. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

5 years 11 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0146 PM CDT Wed Aug 21 2019 Valid 221200Z - 231200Z Minor adjustments were made to ongoing elevated lines based on 12Z high resolution forecast guidance. However, no significant changes were made. See previous discussion below. ..Bentley.. 08/21/2019 .PREV DISCUSSION... /ISSUED 0143 AM CDT Wed Aug 21 2019/ ...Synopsis... An upper-level shortwave trough will continue to move east-northeast across the northern Intermountain West tomorrow. An associated surface cold front will continue to move south and east into the Great Basin and through much of the northern Rockies and northern California. With a pre-frontal surface pressure trough running parallel and ahead of the cold front, the surface pressure gradient will strengthen across the Intermountain West along and ahead of the cold front. Elevated conditions are expected from northern Arizona/southern Nevada stretching northeastward into central Wyoming along/ahead of the surface cold front. Southwest-westerly sustained surface winds of 15-20 mph and RH values of 8-20% are likely to develop during tomorrow afternoon and evening across this area. High clouds may drift into northern Arizona, which could limit the southern extent of the current elevated area. Elevated conditions are also likely to develop across central/eastern portions of the Snake River Plain and vicinity tomorrow afternoon. The cold front will have passed through the area, but daytime heating should warm temperatures and mix the boundary layer enough to result in west-southwest winds of 15-25 mph and RH values of 15-20%. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

5 years 11 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0146 PM CDT Wed Aug 21 2019 Valid 221200Z - 231200Z Minor adjustments were made to ongoing elevated lines based on 12Z high resolution forecast guidance. However, no significant changes were made. See previous discussion below. ..Bentley.. 08/21/2019 .PREV DISCUSSION... /ISSUED 0143 AM CDT Wed Aug 21 2019/ ...Synopsis... An upper-level shortwave trough will continue to move east-northeast across the northern Intermountain West tomorrow. An associated surface cold front will continue to move south and east into the Great Basin and through much of the northern Rockies and northern California. With a pre-frontal surface pressure trough running parallel and ahead of the cold front, the surface pressure gradient will strengthen across the Intermountain West along and ahead of the cold front. Elevated conditions are expected from northern Arizona/southern Nevada stretching northeastward into central Wyoming along/ahead of the surface cold front. Southwest-westerly sustained surface winds of 15-20 mph and RH values of 8-20% are likely to develop during tomorrow afternoon and evening across this area. High clouds may drift into northern Arizona, which could limit the southern extent of the current elevated area. Elevated conditions are also likely to develop across central/eastern portions of the Snake River Plain and vicinity tomorrow afternoon. The cold front will have passed through the area, but daytime heating should warm temperatures and mix the boundary layer enough to result in west-southwest winds of 15-25 mph and RH values of 15-20%. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

Water rate increase in Bozeman, Montana

5 years 11 months ago
Bozeman commissioners approved a water rate increase with the goal of reducing waste during drought. Additional fees will also be implemented if a drought is declared to curb water use. The more water used and the higher the drought stage, the higher water rates will be. Bozeman Daily Chronicle (Mont.), Aug. 21, 2019

Eastern North Pacific Tropical Weather Outlook

5 years 11 months ago

000
ABPZ20 KNHC 211734
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Wed Aug 21 2019

For the eastern North Pacific...east of 140 degrees west longitude:

The National Hurricane Center is issuing advisories on newly formed
Tropical Depression Ten-E, located several hundred miles
south-southeast of the southern tip of the Baja California
peninsula.

Tropical cyclone formation is not expected for the next 5 days.

&&
Public Advisories on Tropical Depression Ten-E are issued under WMO
header WTPZ35 KNHC and under AWIPS header MIATCPEP5.
Forecast/Advisories on Tropical Depression Ten-E are issued under
WMO header WTPZ25 KNHC and under AWIPS header MIATCMEP5.

$$
Forecaster Latto/Pasch
NHC Webmaster

SPC Aug 21, 2019 1730 UTC Day 2 Convective Outlook

5 years 11 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1228 PM CDT Wed Aug 21 2019 Valid 221200Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE NORTHERN AND CENTRAL HIGH PLAINS REGION...AND FROM NEW ENGLAND SOUTHWESTWARD TO THE CENTRAL APPALACHIANS...AND THEN WESTWARD TO OKLAHOMA... ...SUMMARY... Isolated severe wind gusts are possible Thursday from Oklahoma eastward across the Ohio Valley and into parts of New England. Meanwhile, hail or wind, occasionally reaching severe levels, will also be possible over the central and northern High Plains area. ...Synopsis... Weak flow aloft is progged across the southern half of the U.S. Thursday, while a part of troughs will cross Canada and the adjacent northern U.S. through the period. The more western of these features is expected to cross the northern Intermountain region, as an accompanying surface cold front crosses Montana/Wyoming during the afternoon and evening. Farther east, a trough crossing the Great Lakes region will also be accompanying by a cold front, that is forecast to shift eastward across the Northeast, while sagging more slowly southward across the Ohio and mid Mississippi Valleys and into Oklahoma. Both of the troughs, and the associated surface systems, will contribute to convective activity, and accompanying, low-probability severe potential, through the period. ...Parts of New England southwest across the Ohio Valley area to Oklahoma... Modest destabilization is forecast near and ahead of a surface cold front progged to stretch from New England southwestward across the Ohio Valley to Oklahoma during the afternoon, as the parent upper trough slowly advances across eastern Canada and the Great Lakes region. Scattered to isolated afternoon storm development is expected near the boundary, and southward across the warm sector. While any warm-sector storm could produce briefly/locally gusty winds, weak flow will substantially limit storm organization/longevity. Farther north however, nearer the front, an enhanced belt of cyclonic westerlies surrounding the upper trough will be sufficient to support longer-lived storms, and possibly a few quick-moving clusters of cells. As such, local risk for damaging wind gusts appears sufficient across a broad region within the the frontal zone to warrant continuation of 5% wind/MRGL risk. The risk are is being expanded northeastward across the mid Atlantic region and into parts of New England, where lesser CAPE, but stronger flow aloft, is expected. ...Portions of the northern and central high Plains... Afternoon heating will result in moderate destabilization across the high Plains near the combination lee trough/remnant cold front, with lesser destabilization to occur westward into central Montana ahead of the next/advancing cold front. Both of these fronts/troughs should focus afternoon/evening convective activity, with some clustering of convection possible over the high Plains that may locally progress eastward into lower-elevation areas. While mid-level westerly flow will remain modest across much of the area -- particularly the central high Plains, low-level southeasterlies east of the lee trough/remnant front will help to enhance the available shear, and thus a few stronger storms/storm clusters -- capable of locally gusty winds and/or hail -- are expected to evolve. Risk will primarily exist during the late afternoon and evening hours, diminishing overnight as the boundary layer stabilizes. ...MAXIMUM RISK BY HAZARD... Tornado: 2% - Marginal Wind: 5% - Marginal Hail: 5% - Marginal ..Goss.. 08/21/2019 Read more

SPC Aug 21, 2019 1730 UTC Day 2 Convective Outlook

5 years 11 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1228 PM CDT Wed Aug 21 2019 Valid 221200Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE NORTHERN AND CENTRAL HIGH PLAINS REGION...AND FROM NEW ENGLAND SOUTHWESTWARD TO THE CENTRAL APPALACHIANS...AND THEN WESTWARD TO OKLAHOMA... ...SUMMARY... Isolated severe wind gusts are possible Thursday from Oklahoma eastward across the Ohio Valley and into parts of New England. Meanwhile, hail or wind, occasionally reaching severe levels, will also be possible over the central and northern High Plains area. ...Synopsis... Weak flow aloft is progged across the southern half of the U.S. Thursday, while a part of troughs will cross Canada and the adjacent northern U.S. through the period. The more western of these features is expected to cross the northern Intermountain region, as an accompanying surface cold front crosses Montana/Wyoming during the afternoon and evening. Farther east, a trough crossing the Great Lakes region will also be accompanying by a cold front, that is forecast to shift eastward across the Northeast, while sagging more slowly southward across the Ohio and mid Mississippi Valleys and into Oklahoma. Both of the troughs, and the associated surface systems, will contribute to convective activity, and accompanying, low-probability severe potential, through the period. ...Parts of New England southwest across the Ohio Valley area to Oklahoma... Modest destabilization is forecast near and ahead of a surface cold front progged to stretch from New England southwestward across the Ohio Valley to Oklahoma during the afternoon, as the parent upper trough slowly advances across eastern Canada and the Great Lakes region. Scattered to isolated afternoon storm development is expected near the boundary, and southward across the warm sector. While any warm-sector storm could produce briefly/locally gusty winds, weak flow will substantially limit storm organization/longevity. Farther north however, nearer the front, an enhanced belt of cyclonic westerlies surrounding the upper trough will be sufficient to support longer-lived storms, and possibly a few quick-moving clusters of cells. As such, local risk for damaging wind gusts appears sufficient across a broad region within the the frontal zone to warrant continuation of 5% wind/MRGL risk. The risk are is being expanded northeastward across the mid Atlantic region and into parts of New England, where lesser CAPE, but stronger flow aloft, is expected. ...Portions of the northern and central high Plains... Afternoon heating will result in moderate destabilization across the high Plains near the combination lee trough/remnant cold front, with lesser destabilization to occur westward into central Montana ahead of the next/advancing cold front. Both of these fronts/troughs should focus afternoon/evening convective activity, with some clustering of convection possible over the high Plains that may locally progress eastward into lower-elevation areas. While mid-level westerly flow will remain modest across much of the area -- particularly the central high Plains, low-level southeasterlies east of the lee trough/remnant front will help to enhance the available shear, and thus a few stronger storms/storm clusters -- capable of locally gusty winds and/or hail -- are expected to evolve. Risk will primarily exist during the late afternoon and evening hours, diminishing overnight as the boundary layer stabilizes. ...MAXIMUM RISK BY HAZARD... Tornado: 2% - Marginal Wind: 5% - Marginal Hail: 5% - Marginal ..Goss.. 08/21/2019 Read more

SPC Aug 21, 2019 1730 UTC Day 2 Convective Outlook

5 years 11 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1228 PM CDT Wed Aug 21 2019 Valid 221200Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE NORTHERN AND CENTRAL HIGH PLAINS REGION...AND FROM NEW ENGLAND SOUTHWESTWARD TO THE CENTRAL APPALACHIANS...AND THEN WESTWARD TO OKLAHOMA... ...SUMMARY... Isolated severe wind gusts are possible Thursday from Oklahoma eastward across the Ohio Valley and into parts of New England. Meanwhile, hail or wind, occasionally reaching severe levels, will also be possible over the central and northern High Plains area. ...Synopsis... Weak flow aloft is progged across the southern half of the U.S. Thursday, while a part of troughs will cross Canada and the adjacent northern U.S. through the period. The more western of these features is expected to cross the northern Intermountain region, as an accompanying surface cold front crosses Montana/Wyoming during the afternoon and evening. Farther east, a trough crossing the Great Lakes region will also be accompanying by a cold front, that is forecast to shift eastward across the Northeast, while sagging more slowly southward across the Ohio and mid Mississippi Valleys and into Oklahoma. Both of the troughs, and the associated surface systems, will contribute to convective activity, and accompanying, low-probability severe potential, through the period. ...Parts of New England southwest across the Ohio Valley area to Oklahoma... Modest destabilization is forecast near and ahead of a surface cold front progged to stretch from New England southwestward across the Ohio Valley to Oklahoma during the afternoon, as the parent upper trough slowly advances across eastern Canada and the Great Lakes region. Scattered to isolated afternoon storm development is expected near the boundary, and southward across the warm sector. While any warm-sector storm could produce briefly/locally gusty winds, weak flow will substantially limit storm organization/longevity. Farther north however, nearer the front, an enhanced belt of cyclonic westerlies surrounding the upper trough will be sufficient to support longer-lived storms, and possibly a few quick-moving clusters of cells. As such, local risk for damaging wind gusts appears sufficient across a broad region within the the frontal zone to warrant continuation of 5% wind/MRGL risk. The risk are is being expanded northeastward across the mid Atlantic region and into parts of New England, where lesser CAPE, but stronger flow aloft, is expected. ...Portions of the northern and central high Plains... Afternoon heating will result in moderate destabilization across the high Plains near the combination lee trough/remnant cold front, with lesser destabilization to occur westward into central Montana ahead of the next/advancing cold front. Both of these fronts/troughs should focus afternoon/evening convective activity, with some clustering of convection possible over the high Plains that may locally progress eastward into lower-elevation areas. While mid-level westerly flow will remain modest across much of the area -- particularly the central high Plains, low-level southeasterlies east of the lee trough/remnant front will help to enhance the available shear, and thus a few stronger storms/storm clusters -- capable of locally gusty winds and/or hail -- are expected to evolve. Risk will primarily exist during the late afternoon and evening hours, diminishing overnight as the boundary layer stabilizes. ...MAXIMUM RISK BY HAZARD... Tornado: 2% - Marginal Wind: 5% - Marginal Hail: 5% - Marginal ..Goss.. 08/21/2019 Read more

SPC Aug 21, 2019 1730 UTC Day 2 Convective Outlook

5 years 11 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1228 PM CDT Wed Aug 21 2019 Valid 221200Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE NORTHERN AND CENTRAL HIGH PLAINS REGION...AND FROM NEW ENGLAND SOUTHWESTWARD TO THE CENTRAL APPALACHIANS...AND THEN WESTWARD TO OKLAHOMA... ...SUMMARY... Isolated severe wind gusts are possible Thursday from Oklahoma eastward across the Ohio Valley and into parts of New England. Meanwhile, hail or wind, occasionally reaching severe levels, will also be possible over the central and northern High Plains area. ...Synopsis... Weak flow aloft is progged across the southern half of the U.S. Thursday, while a part of troughs will cross Canada and the adjacent northern U.S. through the period. The more western of these features is expected to cross the northern Intermountain region, as an accompanying surface cold front crosses Montana/Wyoming during the afternoon and evening. Farther east, a trough crossing the Great Lakes region will also be accompanying by a cold front, that is forecast to shift eastward across the Northeast, while sagging more slowly southward across the Ohio and mid Mississippi Valleys and into Oklahoma. Both of the troughs, and the associated surface systems, will contribute to convective activity, and accompanying, low-probability severe potential, through the period. ...Parts of New England southwest across the Ohio Valley area to Oklahoma... Modest destabilization is forecast near and ahead of a surface cold front progged to stretch from New England southwestward across the Ohio Valley to Oklahoma during the afternoon, as the parent upper trough slowly advances across eastern Canada and the Great Lakes region. Scattered to isolated afternoon storm development is expected near the boundary, and southward across the warm sector. While any warm-sector storm could produce briefly/locally gusty winds, weak flow will substantially limit storm organization/longevity. Farther north however, nearer the front, an enhanced belt of cyclonic westerlies surrounding the upper trough will be sufficient to support longer-lived storms, and possibly a few quick-moving clusters of cells. As such, local risk for damaging wind gusts appears sufficient across a broad region within the the frontal zone to warrant continuation of 5% wind/MRGL risk. The risk are is being expanded northeastward across the mid Atlantic region and into parts of New England, where lesser CAPE, but stronger flow aloft, is expected. ...Portions of the northern and central high Plains... Afternoon heating will result in moderate destabilization across the high Plains near the combination lee trough/remnant cold front, with lesser destabilization to occur westward into central Montana ahead of the next/advancing cold front. Both of these fronts/troughs should focus afternoon/evening convective activity, with some clustering of convection possible over the high Plains that may locally progress eastward into lower-elevation areas. While mid-level westerly flow will remain modest across much of the area -- particularly the central high Plains, low-level southeasterlies east of the lee trough/remnant front will help to enhance the available shear, and thus a few stronger storms/storm clusters -- capable of locally gusty winds and/or hail -- are expected to evolve. Risk will primarily exist during the late afternoon and evening hours, diminishing overnight as the boundary layer stabilizes. ...MAXIMUM RISK BY HAZARD... Tornado: 2% - Marginal Wind: 5% - Marginal Hail: 5% - Marginal ..Goss.. 08/21/2019 Read more

SPC Aug 21, 2019 1730 UTC Day 2 Convective Outlook

5 years 11 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1228 PM CDT Wed Aug 21 2019 Valid 221200Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE NORTHERN AND CENTRAL HIGH PLAINS REGION...AND FROM NEW ENGLAND SOUTHWESTWARD TO THE CENTRAL APPALACHIANS...AND THEN WESTWARD TO OKLAHOMA... ...SUMMARY... Isolated severe wind gusts are possible Thursday from Oklahoma eastward across the Ohio Valley and into parts of New England. Meanwhile, hail or wind, occasionally reaching severe levels, will also be possible over the central and northern High Plains area. ...Synopsis... Weak flow aloft is progged across the southern half of the U.S. Thursday, while a part of troughs will cross Canada and the adjacent northern U.S. through the period. The more western of these features is expected to cross the northern Intermountain region, as an accompanying surface cold front crosses Montana/Wyoming during the afternoon and evening. Farther east, a trough crossing the Great Lakes region will also be accompanying by a cold front, that is forecast to shift eastward across the Northeast, while sagging more slowly southward across the Ohio and mid Mississippi Valleys and into Oklahoma. Both of the troughs, and the associated surface systems, will contribute to convective activity, and accompanying, low-probability severe potential, through the period. ...Parts of New England southwest across the Ohio Valley area to Oklahoma... Modest destabilization is forecast near and ahead of a surface cold front progged to stretch from New England southwestward across the Ohio Valley to Oklahoma during the afternoon, as the parent upper trough slowly advances across eastern Canada and the Great Lakes region. Scattered to isolated afternoon storm development is expected near the boundary, and southward across the warm sector. While any warm-sector storm could produce briefly/locally gusty winds, weak flow will substantially limit storm organization/longevity. Farther north however, nearer the front, an enhanced belt of cyclonic westerlies surrounding the upper trough will be sufficient to support longer-lived storms, and possibly a few quick-moving clusters of cells. As such, local risk for damaging wind gusts appears sufficient across a broad region within the the frontal zone to warrant continuation of 5% wind/MRGL risk. The risk are is being expanded northeastward across the mid Atlantic region and into parts of New England, where lesser CAPE, but stronger flow aloft, is expected. ...Portions of the northern and central high Plains... Afternoon heating will result in moderate destabilization across the high Plains near the combination lee trough/remnant cold front, with lesser destabilization to occur westward into central Montana ahead of the next/advancing cold front. Both of these fronts/troughs should focus afternoon/evening convective activity, with some clustering of convection possible over the high Plains that may locally progress eastward into lower-elevation areas. While mid-level westerly flow will remain modest across much of the area -- particularly the central high Plains, low-level southeasterlies east of the lee trough/remnant front will help to enhance the available shear, and thus a few stronger storms/storm clusters -- capable of locally gusty winds and/or hail -- are expected to evolve. Risk will primarily exist during the late afternoon and evening hours, diminishing overnight as the boundary layer stabilizes. ...MAXIMUM RISK BY HAZARD... Tornado: 2% - Marginal Wind: 5% - Marginal Hail: 5% - Marginal ..Goss.. 08/21/2019 Read more

SPC Day 1 Fire Weather Outlook

5 years 11 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1153 AM CDT Wed Aug 21 2019 Valid 211700Z - 221200Z ...NO CRITICAL AREAS... Sundowner winds are possible across Santa Barbara county in southern California this evening and may lead to isolated elevated fire weather conditions, but the isolated and short duration of the threat precludes inclusion of an elevated delineation. No changes have been made to the previous outlook. See previous discussion below. ..Bentley.. 08/21/2019 .PREV DISCUSSION... /ISSUED 0136 AM CDT Wed Aug 21 2019/ ...Synopsis... An upper-level shortwave trough will move into the Pacific Northwest and northern Rockies today with an associated surface cold front sweeping east and south through the Pacific Northwest. Hot/dry/unstable conditions are expected to continue across much of the Intermountain West ahead of the cold front and north/west of the subtropical moisture in the Southwest and Rocky Mountains. Elevated conditions may develop just ahead of the cold front across eastern Washington/Oregon, but conditions should be short-lived and followed by cooler, moist air. Isolated thunderstorms are possible along the cold front across portions of the inland Pacific Northwest. Additionally, isolated dry thunderstorms may form across portions of the northern Rockies. However, the forecast airmass change and marginal fuel conditions where storms may develop preclude an isolated dry thunderstorm area. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

5 years 11 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1153 AM CDT Wed Aug 21 2019 Valid 211700Z - 221200Z ...NO CRITICAL AREAS... Sundowner winds are possible across Santa Barbara county in southern California this evening and may lead to isolated elevated fire weather conditions, but the isolated and short duration of the threat precludes inclusion of an elevated delineation. No changes have been made to the previous outlook. See previous discussion below. ..Bentley.. 08/21/2019 .PREV DISCUSSION... /ISSUED 0136 AM CDT Wed Aug 21 2019/ ...Synopsis... An upper-level shortwave trough will move into the Pacific Northwest and northern Rockies today with an associated surface cold front sweeping east and south through the Pacific Northwest. Hot/dry/unstable conditions are expected to continue across much of the Intermountain West ahead of the cold front and north/west of the subtropical moisture in the Southwest and Rocky Mountains. Elevated conditions may develop just ahead of the cold front across eastern Washington/Oregon, but conditions should be short-lived and followed by cooler, moist air. Isolated thunderstorms are possible along the cold front across portions of the inland Pacific Northwest. Additionally, isolated dry thunderstorms may form across portions of the northern Rockies. However, the forecast airmass change and marginal fuel conditions where storms may develop preclude an isolated dry thunderstorm area. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

5 years 11 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1153 AM CDT Wed Aug 21 2019 Valid 211700Z - 221200Z ...NO CRITICAL AREAS... Sundowner winds are possible across Santa Barbara county in southern California this evening and may lead to isolated elevated fire weather conditions, but the isolated and short duration of the threat precludes inclusion of an elevated delineation. No changes have been made to the previous outlook. See previous discussion below. ..Bentley.. 08/21/2019 .PREV DISCUSSION... /ISSUED 0136 AM CDT Wed Aug 21 2019/ ...Synopsis... An upper-level shortwave trough will move into the Pacific Northwest and northern Rockies today with an associated surface cold front sweeping east and south through the Pacific Northwest. Hot/dry/unstable conditions are expected to continue across much of the Intermountain West ahead of the cold front and north/west of the subtropical moisture in the Southwest and Rocky Mountains. Elevated conditions may develop just ahead of the cold front across eastern Washington/Oregon, but conditions should be short-lived and followed by cooler, moist air. Isolated thunderstorms are possible along the cold front across portions of the inland Pacific Northwest. Additionally, isolated dry thunderstorms may form across portions of the northern Rockies. However, the forecast airmass change and marginal fuel conditions where storms may develop preclude an isolated dry thunderstorm area. ...Please see www.spc.noaa.gov/fire for graphic product... Read more