SPC Apr 23, 2023 2000 UTC Day 1 Convective Outlook

2 years 2 months ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0240 PM CDT Sun Apr 23 2023 Valid 232000Z - 241200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... The risk for severe thunderstorms has diminished across the lower Rio Grande Valley, and now appears negligible across the U.S. late this afternoon through tonight. ...20Z Update... The more intense leading line and gust front of the south-southeastward propagating, organized mesoscale convective system have progressed offshore of lower Texas coastal areas, and south of the lower Rio Grande Valley. However, the trailing stratiform precipitation and associated lightning may continue to impact coastal areas another hour or two. Elsewhere, some adjustments to the categorical risk of thunderstorms (greater than 10 percent probability) have been made to account for ongoing trends concerning destabilization and the progression of the synoptic features. ..Kerr.. 04/23/2023 .PREV DISCUSSION... /ISSUED 1103 AM CDT Sun Apr 23 2023/ ...Deep South TX... A long-lived linear MCS continues to progress southeastward across south TX this morning, with several reports of strong to severe wind gusts along the leading edge. Ample low level moisture and CAPE will allow these storms to persist through the day and eventually move off the south TX coast by mid/late afternoon - ending the threat. Refer to MCD #607 for further details. Read more

SPC Day 2 Fire Weather Outlook

2 years 2 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0149 PM CDT Sun Apr 23 2023 Valid 241200Z - 251200Z The forecast remains on track, and no changes were needed with this update. For details, see the previous discussion below. ..Weinman.. 04/23/2023 .PREV DISCUSSION... /ISSUED 0122 AM CDT Sun Apr 23 2023/ ...Synopsis... On Monday, lee troughing is expected, while high pressure continues to dominate central and eastern portions of the southern Plains. Therefore, a tightening pressure gradient is expected to develop across Arizona/New Mexico. In addition, deep mixing is expected in this region with moderate 30-35 knots of mid-level flow. These factors will combine to result in some breezy conditions across the Southwest on Monday. Northern New Mexico will be cooler with greater moisture, and some thunderstorms will be possible. These storms will be on the drier side, however, the regions most susceptible to lightning are in higher terrain where fuels remain moist/snow covered. Therefore, no dry thunderstorm area is expected at this time. However, a warmer and drier airmass is expected across southeast Arizona and southern New Mexico and as a result, an Elevated fire weather area has been added to address the greater fire weather concerns. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Apr 23, 2023 1730 UTC Day 2 Convective Outlook

2 years 2 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1221 PM CDT Sun Apr 23 2023 Valid 241200Z - 251200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS MONDAY ACROSS PARTS OF THE FLORIDA PENINSULA... ...SUMMARY... Strong thunderstorms may impact interior and Atlantic coastal areas of the Florida Peninsula Monday, and pose at least some risk for severe weather. ...Synopsis... Within a persistent split flow across the mid-latitude eastern Pacific into Atlantic, one blocking high, centered near Newfoundland and Labrador, appears likely to remain prominent through this period and beyond. This high will be flanked to its southeast by a low over the mid-latitude Atlantic, and to its southwest by a low which is forecast to begin redeveloping southeast of the Upper Midwest through the lower Great Lakes region. Upstream, within one increasingly amplified branch of westerlies, models suggest that mid-level ridging will build across southern portions of the eastern mid-latitude Pacific, toward U.S. Pacific coastal areas, while a downstream short wave perturbation digs into the Great Basin with a developing embedded mid-level low. In advance of the latter feature, a moistening southerly return flow likely will commence across the lower Rio Grande Valley into the southern Great Plains. However, relatively cool surface-based air, associated surface high pressure encompassing most areas east of the high plains, likely will be maintained, while inhibition increases aloft, associated with the northward and eastward advection of elevated mixed-layer air. Across the Gulf Coast/Gulf of Mexico vicinity, models indicate considerable strengthening of westerly mid/upper flow through the period. As this occurs, it appears that a perturbation emerging from the lower Rio Grande Valley today will overspread the Florida Peninsula during the day Monday. ...Florida... To the south of a reinforcing, but stalling and weakening surface front, models indicate that low-level moisture will be maintained or begin to increase across much of the southern and central peninsula during the day Monday. It appears that this will include mid/upper 60s surface dew points on easterly near-surface flow, particularly across central and southern Atlantic coastal into interior areas, beneath relatively cool mid-level temperatures. With insolation, this may contribute to moderate mixed-layer CAPE on the order of 1000-2000+ J/kg, prior to the approach of the mid-level short wave trough Monday afternoon. Aided by the strengthening large-scale forcing for ascent, it appears that this destabilization may yield increasingly widespread thunderstorm development across interior into Atlantic coastal areas through late afternoon. Beneath the moderate to strong mid/upper flow, deep-layer shear may become conducive for some of this convection to organize, with supercell structures also possible, which may pose a risk for severe wind and hail before convection weakens by Monday evening. ..Kerr.. 04/23/2023 Read more

SPC MD 598

2 years 2 months ago
MD 0598 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR NORTH FLORIDA TO THE GEORGIA AND SOUTH CAROLINA COAST
Mesoscale Discussion 0598 NWS Storm Prediction Center Norman OK 0354 PM CDT Sat Apr 22 2023 Areas affected...North Florida to the Georgia and South Carolina Coast Concerning...Severe potential...Watch unlikely Valid 222054Z - 222300Z Probability of Watch Issuance...20 percent SUMMARY...Isolated to scattered thunderstorms are gradually developing along an approaching cold front and regional sea-breeze boundaries. A few strong to severe storms are possible and may pose a sporadic hail/damaging wind threat. Watch issuance is not anticipated. DISCUSSION...Over the past 1-2 hours, a few isolated cells have developed along, and moved off of, a migratory cold front approaching north FL and the GA/SC coast. The lift associated with the front is well-timed with peak diurnal heating with MLCAPE values up to 1500 J/kg noted in recent RAP mesoanalysis and latest hi-res forecast soundings. While hodographs are somewhat poorly structured per recent VWP observations, there appears to be sufficient deep-layer shear for storm organization. Effective shear vectors largely oriented along the frontal boundary along the GA/SC coast will favor a tendency for storm interactions/upscale growth, which may limit the overall propensity for long-lived severe convection. However, shear vectors off the boundary across north FL may support more long-lived convection that should pose a more robust, albeit isolated, large hail and damaging wind threat. Additional convection developing along sea-breeze boundaries across north FL will likely see similar intensification. Relatively modest ascent along the cold front will likely favor more isolated convection, limiting the overall coverage of the threat. ..Moore/Goss.. 04/22/2023 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CHS...MLB...TBW...JAX...TAE... LAT...LON 29818361 30608249 31058206 31968149 32428114 32678083 32628057 32388030 32148049 31778088 31108117 30548116 29988114 29548096 29138074 28838061 28418045 28118050 27988091 28128139 28738254 29138319 29498355 29668363 29818361 Read more

SPC Severe Thunderstorm Watch 162 Status Reports

2 years 2 months ago
WW 0162 Status Updates
STATUS REPORT ON WW 162 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..MOORE..04/22/23 ATTN...WFO...EWX...SJT...FWD... STATUS REPORT FOR WS 162 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS TXC031-049-053-081-083-093-095-099-171-193-235-267-281-299-307- 319-327-333-353-399-411-413-431-435-451-222140- TX . TEXAS COUNTIES INCLUDED ARE BLANCO BROWN BURNET COKE COLEMAN COMANCHE CONCHO CORYELL GILLESPIE HAMILTON IRION KIMBLE LAMPASAS LLANO MCCULLOCH MASON MENARD MILLS NOLAN RUNNELS SAN SABA SCHLEICHER STERLING SUTTON TOM GREEN THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

SPC Severe Thunderstorm Watch 162

2 years 2 months ago
WW 162 SEVERE TSTM TX 221940Z - 230300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 162 NWS Storm Prediction Center Norman OK 240 PM CDT Sat Apr 22 2023 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central Texas * Effective this Saturday afternoon and evening from 240 PM until 1000 PM CDT. * Primary threats include... Scattered large hail likely with isolated very large hail events to 3 inches in diameter possible Scattered damaging wind gusts to 70 mph possible A tornado or two possible SUMMARY...Thunderstorms are expected to develop rapidly this afternoon in vicinity of a surface boundary over central Texas, and drift slowly east-southeastward through the evening. Supercells capable of very large hail and damaging winds are expected. A tornado or two is also possible. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 45 miles west northwest of San Angelo TX to 85 miles southeast of Brownwood TX. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU2). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 159...WW 160...WW 161... AVIATION...A few severe thunderstorms with hail surface and aloft to 3 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 28025. ...Hart Read more

SPC Severe Thunderstorm Watch 160 Status Reports

2 years 2 months ago
WW 0160 Status Updates
STATUS REPORT ON WW 160 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 N BWI TO 30 WSW AVP. ..MOORE..04/22/23 ATTN...WFO...PHI...CTP... STATUS REPORT FOR WS 160 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NJC005-007-011-015-019-021-033-035-041-222140- NJ . NEW JERSEY COUNTIES INCLUDED ARE BURLINGTON CAMDEN CUMBERLAND GLOUCESTER HUNTERDON MERCER SALEM SOMERSET WARREN PAC011-017-025-029-045-071-075-077-089-091-095-101-107-222140- PA . PENNSYLVANIA COUNTIES INCLUDED ARE BERKS BUCKS CARBON CHESTER DELAWARE LANCASTER LEBANON LEHIGH MONROE MONTGOMERY NORTHAMPTON PHILADELPHIA SCHUYLKILL THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES Read more

SPC Severe Thunderstorm Watch 161 Status Reports

2 years 2 months ago
WW 0161 Status Updates
STATUS REPORT ON WW 161 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..MOORE..04/22/23 ATTN...WFO...MHX...ILM... STATUS REPORT FOR WS 161 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NCC013-017-019-031-047-049-061-079-103-107-117-129-133-137-141- 147-155-187-222140- NC . NORTH CAROLINA COUNTIES INCLUDED ARE BEAUFORT BLADEN BRUNSWICK CARTERET COLUMBUS CRAVEN DUPLIN GREENE JONES LENOIR MARTIN NEW HANOVER ONSLOW PAMLICO PENDER PITT ROBESON WASHINGTON SCC031-033-041-043-051-067-069-089-222140- SC . SOUTH CAROLINA COUNTIES INCLUDED ARE DARLINGTON DILLON FLORENCE GEORGETOWN HORRY MARION MARLBORO WILLIAMSBURG AMZ136-137-158-250-252-254-256-222140- Read more

SPC Severe Thunderstorm Watch 160

2 years 2 months ago
WW 160 SEVERE TSTM NJ PA 221905Z - 230100Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 160 NWS Storm Prediction Center Norman OK 305 PM EDT Sat Apr 22 2023 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of New Jersey Southeast Pennsylvania * Effective this Saturday afternoon and evening from 305 PM until 900 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1 inch in diameter possible A tornado or two possible SUMMARY...Fast moving thunderstorms over Maryland and southeast Pennsylvania will track across the watch area this afternoon, posing a risk of damaging wind gusts. The severe thunderstorm watch area is approximately along and 55 statute miles east and west of a line from 35 miles north northwest of Allentown PA to 10 miles west southwest of Wilmington DE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 159... AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 23035. ...Hart Read more

SPC Severe Thunderstorm Watch 161

2 years 2 months ago
WW 161 SEVERE TSTM NC SC CW 221920Z - 230300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 161 NWS Storm Prediction Center Norman OK 320 PM EDT Sat Apr 22 2023 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Eastern North Carolina Northeast South Carolina Coastal Waters * Effective this Saturday afternoon and evening from 320 PM until 1100 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorms are intensifying along/ahead of a cold front approaching the watch area. A few of these storms will become severe, capable of damaging wind gusts and hail through the early evening. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 30 miles south southwest of Florence SC to 35 miles east northeast of New Bern NC. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU1). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 159...WW 160... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24030. ...Hart Read more

SPC Severe Thunderstorm Watch 159 Status Reports

2 years 2 months ago
WW 0159 Status Updates
STATUS REPORT ON WW 159 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 WSW SOP TO 30 ENE DAN TO 30 SE RIC TO 5 S NHK TO 35 WNW ILG. ..MOORE..04/22/23 ATTN...WFO...LWX...PHI...AKQ...RAH...RNK... STATUS REPORT FOR WS 159 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DEC001-003-005-222140- DE . DELAWARE COUNTIES INCLUDED ARE KENT NEW CASTLE SUSSEX MDC011-015-019-029-035-039-041-045-047-222140- MD . MARYLAND COUNTIES INCLUDED ARE CAROLINE CECIL DORCHESTER KENT QUEEN ANNE'S SOMERSET TALBOT WICOMICO WORCESTER NCC015-029-037-041-051-053-063-065-069-073-077-083-085-091-093- 101-105-125-127-131-135-139-143-145-163-181-183-185-191-195- 222140- NC . NORTH CAROLINA COUNTIES INCLUDED ARE Read more

SPC Severe Thunderstorm Watch 159

2 years 2 months ago
WW 159 SEVERE TSTM DC DE MD NC VA CW 221410Z - 222200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 159 NWS Storm Prediction Center Norman OK 1010 AM EDT Sat Apr 22 2023 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Delaware Central and Eastern Maryland Central and Northeast North Carolina Central and Eastern Virginia Coastal Waters * Effective this Saturday morning and evening from 1010 AM until 600 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1 inch in diameter possible A tornado or two possible SUMMARY...A line of thunderstorms over western Virginia/North Carolina will track rapidly eastward today across the watch area. Locally damaging wind gusts are possible along the leading edge of the line. The severe thunderstorm watch area is approximately along and 70 statute miles east and west of a line from 45 miles northeast of Baltimore MD to 30 miles east of Southern Pines NC. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 24035. ...Hart Read more

SPC Apr 22, 2023 2000 UTC Day 1 Convective Outlook

2 years 2 months ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0301 PM CDT Sat Apr 22 2023 Valid 222000Z - 231200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS PARTS OF THE MID-ATLANTIC AND TEXAS HILL COUNTRY... ...SUMMARY... Severe thunderstorms remain possible this afternoon over parts of the Carolinas into the Mid-Atlantic region, and this afternoon and evening over portions of south Texas. ...20Z Update... Minimal changes were made to the ongoing forecast. Across the Mid-Atlantic region, probabilities were remove behind earlier convection. For the Texas Hill Country, The Slight/Marginal areas were adjusted based on observations. ..Wendt.. 04/22/2023 .PREV DISCUSSION... /ISSUED 1114 AM CDT Sat Apr 22 2023/ ...Mid-Atlantic Region... The current water vapor loop shows a strong upper trough becoming negatively tilted over the Ohio Valley, with a 70-80 knot mid-level jet nosing into VA. A persistent line of thunderstorms is tracking eastward into central VA/NC, and is expected to intensify soon. Thermodynamics ahead of the storms are rather weak, with limited lapse rates and MLCAPE generally below 500 J/kg. However, given the strength of the winds aloft and approaching upper forcing, the potential for damaging wind gusts along the line is expected to increase. These storms will track across eastern MD/DE before moving offshore by late afternoon. ...Carolinas... The primary cold front extends across western SC. Strong heating is occurring ahead of the front over SC and parts of southern NC, where afternoon MLCAPE will rise to 1000-1500 J/kg. Present indications are that storms will intensify in this area by mid-afternoon, with a combination of multicell and supercell structures possible. Winds aloft are slightly weaker here than farther north, but still sufficient for a risk of hail and gusty/damaging winds in the stronger storms through the early evening. ...Hill Country of Texas... Latest surface analysis shows a weak low to the northwest of San Angelo, with a dryline extending southward to the Mexican border. Strong heating through the day will lead to a weak cap and 2000+ J/kg of MLCAPE by mid/late afternoon. Isolated supercell storms are expected to form near the low and track slowly southeastward into the warm sector. Forecast soundings show moderately steep mid level lapse rates and favorable deep layer shear for the risk of large hail and damaging wind gusts. A tornado or two are possible, but limited low-level shear is expected to lessen that threat. Read more

SPC MD 597

2 years 2 months ago
MD 0597 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR RIO GRANDE VICINITY SOUTH OF DEL RIO
Mesoscale Discussion 0597 NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Apr 22 2023 Areas affected...Rio Grande vicinity south of Del Rio Concerning...Severe potential...Watch unlikely Valid 221936Z - 222230Z Probability of Watch Issuance...20 percent SUMMARY...Isolated to widely scattered supercells may form along the higher terrain to the west of the Rio Grande River by 4-6 PM CDT, and generally remain west of the river into this evening. DISCUSSION...Initial attempts at deepening convective development appear underway near the Serrianas Del Burro, aided by destabilization associated with daytime heating and orographic forcing for ascent. This is where moist southeasterly near surface flow (including mid/upper 60s F surface dew points) appears to be contributing to sizable mixed-layer CAPE increasing in excess of 2000 J/kg, beneath steep mid-level lapse rates. It is possible that forcing for ascent may become enhanced by a westerly mid-level speed maximum (around 40 kt near 500 mb), with 20-25+ kt westerly deep-layer mean flow contributing to potential for advection of developing storms off the higher terrain toward the Rio Grande River vicinity. However, with sufficient deep-layer shear for supercells, and southeasterly low-level upslope flow being maintained into this evening, stronger storms seem likely to tend to propagate south-southeastward closer to the higher terrain, and remain west of the river. ..Kerr/Hart.. 04/22/2023 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...EWX... LAT...LON 29030202 29520165 29360096 28530037 27740078 27710128 28400179 29030202 Read more

SPC Apr 22, 2023 1730 UTC Day 2 Convective Outlook

2 years 2 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1227 PM CDT Sat Apr 22 2023 Valid 231200Z - 241200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR SOUTH TEXAS... ...SUMMARY... Potentially scattered thunderstorms may produce large hail and damaging gusts Sunday over parts of South Texas. ...Synopsis... With relatively zonal flow aloft across the southern U.S., modestly strong westerlies will remain across the southern Plains on Sunday. At the surface, west-east cold front will be situated from the Edwards Plateau into the Hill Country and East Texas. This boundary is expected to shift southward during the day. The potential for severe weather will focus along and south of this boundary. ...South Texas... There is some uncertainty with regard to how convection will evolve on Sunday, with some aspects tied to what occurs Saturday night. Some guidance suggests a weak perturbation may initiate convection Saturday night within the Edwards Plateau vicinity and propagate it along and south of the front. While not in a diurnally favorable time frame, some potential for wind gusts would exist early Sunday should convection be sustained. Given the weak forcing, however, a more probable scenario would be for convection to initiate along the southward moving front and/or the Gulf breeze front. Upper 60s F dewpoints will support around 1000 J/kg MLCAPE. Effective shear of 35-40 kts will support some storm organization as well. Initial storms would be capable large hail and damaging winds. Depending on storm coverage and cold pool organization, a zone of greater wind damage potential could develop should a small MCS develop. ..Wendt.. 04/22/2023 Read more

SPC Day 2 Fire Weather Outlook

2 years 2 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1222 PM CDT Sat Apr 22 2023 Valid 231200Z - 241200Z The previous forecast (see below) remains on track, and no changes were needed with this update. ..Weinman.. 04/22/2023 .PREV DISCUSSION... /ISSUED 0146 AM CDT Sat Apr 22 2023/ ...Synopsis... Dry, yet cool surface air will remain in place across much of the CONUS tomorrow/Sunday as a surface high lingers east of the Rockies amid a slowly departing upper trough along the East Coast. Similar to today, dry conditions will prevail across the central High Plains, overlapping with occasionally breezy conditions amid dry fuels, promoting localized wildfire-spread potential. However, Elevated conditions are likely near the international border in the Lower Colorado River Basin, as 15 mph sustained southwesterly surface winds overlap with 15 percent RH for a few hours around afternoon peak heating. Elevated highlights were added since fuels should be marginally receptive to fire spread. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Severe Thunderstorm Watch 158 Status Reports

2 years 3 months ago
WW 0158 Status Updates
STATUS REPORT ON WW 158 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 60 S LRD TO 60 SE CRP. ..MOORE..04/21/23 ATTN...WFO...BRO... STATUS REPORT FOR WS 158 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS TXC061-215-261-427-489-212240- TX . TEXAS COUNTIES INCLUDED ARE CAMERON HIDALGO KENEDY STARR WILLACY THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more