SPC Day 1 Fire Weather Outlook

11 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1242 AM CDT Sat Aug 31 2024 Valid 311200Z - 011200Z ...Synopsis... Dry thunderstorms will be the primary fire weather concern for today across portions of southern/eastern Nevada into far southwest Utah. A modest monsoonal moisture plume has been slowly spreading northwestward from southern/central AZ into southern NV over the past 12 hours per GOES water-vapor and PWAT imagery. Increasing mid-level moisture has also been noted in recent VEF soundings with PWAT values increasing to 0.85 inches as recently as 00 UTC Saturday. This moisture, combined with cool mid-level temperatures, will support isolated thunderstorms by late afternoon as ascent associated with a weak mid-level perturbation overspreads the southern Great Basin. Slow storm motions around 10 knots should promote very narrow swaths of rainfall, but very dry boundary layer conditions (similar in nature to the 00 UTC VEF sounding) will likely be in place by peak heating and should promote limited rain accumulation away from the primary downdraft cores. While thunderstorm coverage is expected to be fairly isolated, dry lightning strikes are likely with any storm that can develop and will pose a fire weather concern considering ERCs are at or above the 80th percentile. Elsewhere, very dry conditions will persist across the remainder of the Great Basin with afternoon RH values in the single digits to teens. Surface gradient winds are forecast to generally remain below 15 mph for most locations, which limits confidence in additional fire weather concerns. The general consensus among recent high-res guidance is that the strongest winds will likely be associated with thunderstorm outflows across southern NV/southwest UT and into central AZ. ..Moore.. 08/31/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

11 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1242 AM CDT Sat Aug 31 2024 Valid 311200Z - 011200Z ...Synopsis... Dry thunderstorms will be the primary fire weather concern for today across portions of southern/eastern Nevada into far southwest Utah. A modest monsoonal moisture plume has been slowly spreading northwestward from southern/central AZ into southern NV over the past 12 hours per GOES water-vapor and PWAT imagery. Increasing mid-level moisture has also been noted in recent VEF soundings with PWAT values increasing to 0.85 inches as recently as 00 UTC Saturday. This moisture, combined with cool mid-level temperatures, will support isolated thunderstorms by late afternoon as ascent associated with a weak mid-level perturbation overspreads the southern Great Basin. Slow storm motions around 10 knots should promote very narrow swaths of rainfall, but very dry boundary layer conditions (similar in nature to the 00 UTC VEF sounding) will likely be in place by peak heating and should promote limited rain accumulation away from the primary downdraft cores. While thunderstorm coverage is expected to be fairly isolated, dry lightning strikes are likely with any storm that can develop and will pose a fire weather concern considering ERCs are at or above the 80th percentile. Elsewhere, very dry conditions will persist across the remainder of the Great Basin with afternoon RH values in the single digits to teens. Surface gradient winds are forecast to generally remain below 15 mph for most locations, which limits confidence in additional fire weather concerns. The general consensus among recent high-res guidance is that the strongest winds will likely be associated with thunderstorm outflows across southern NV/southwest UT and into central AZ. ..Moore.. 08/31/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

11 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1242 AM CDT Sat Aug 31 2024 Valid 311200Z - 011200Z ...Synopsis... Dry thunderstorms will be the primary fire weather concern for today across portions of southern/eastern Nevada into far southwest Utah. A modest monsoonal moisture plume has been slowly spreading northwestward from southern/central AZ into southern NV over the past 12 hours per GOES water-vapor and PWAT imagery. Increasing mid-level moisture has also been noted in recent VEF soundings with PWAT values increasing to 0.85 inches as recently as 00 UTC Saturday. This moisture, combined with cool mid-level temperatures, will support isolated thunderstorms by late afternoon as ascent associated with a weak mid-level perturbation overspreads the southern Great Basin. Slow storm motions around 10 knots should promote very narrow swaths of rainfall, but very dry boundary layer conditions (similar in nature to the 00 UTC VEF sounding) will likely be in place by peak heating and should promote limited rain accumulation away from the primary downdraft cores. While thunderstorm coverage is expected to be fairly isolated, dry lightning strikes are likely with any storm that can develop and will pose a fire weather concern considering ERCs are at or above the 80th percentile. Elsewhere, very dry conditions will persist across the remainder of the Great Basin with afternoon RH values in the single digits to teens. Surface gradient winds are forecast to generally remain below 15 mph for most locations, which limits confidence in additional fire weather concerns. The general consensus among recent high-res guidance is that the strongest winds will likely be associated with thunderstorm outflows across southern NV/southwest UT and into central AZ. ..Moore.. 08/31/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

11 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1242 AM CDT Sat Aug 31 2024 Valid 311200Z - 011200Z ...Synopsis... Dry thunderstorms will be the primary fire weather concern for today across portions of southern/eastern Nevada into far southwest Utah. A modest monsoonal moisture plume has been slowly spreading northwestward from southern/central AZ into southern NV over the past 12 hours per GOES water-vapor and PWAT imagery. Increasing mid-level moisture has also been noted in recent VEF soundings with PWAT values increasing to 0.85 inches as recently as 00 UTC Saturday. This moisture, combined with cool mid-level temperatures, will support isolated thunderstorms by late afternoon as ascent associated with a weak mid-level perturbation overspreads the southern Great Basin. Slow storm motions around 10 knots should promote very narrow swaths of rainfall, but very dry boundary layer conditions (similar in nature to the 00 UTC VEF sounding) will likely be in place by peak heating and should promote limited rain accumulation away from the primary downdraft cores. While thunderstorm coverage is expected to be fairly isolated, dry lightning strikes are likely with any storm that can develop and will pose a fire weather concern considering ERCs are at or above the 80th percentile. Elsewhere, very dry conditions will persist across the remainder of the Great Basin with afternoon RH values in the single digits to teens. Surface gradient winds are forecast to generally remain below 15 mph for most locations, which limits confidence in additional fire weather concerns. The general consensus among recent high-res guidance is that the strongest winds will likely be associated with thunderstorm outflows across southern NV/southwest UT and into central AZ. ..Moore.. 08/31/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

11 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1242 AM CDT Sat Aug 31 2024 Valid 311200Z - 011200Z ...Synopsis... Dry thunderstorms will be the primary fire weather concern for today across portions of southern/eastern Nevada into far southwest Utah. A modest monsoonal moisture plume has been slowly spreading northwestward from southern/central AZ into southern NV over the past 12 hours per GOES water-vapor and PWAT imagery. Increasing mid-level moisture has also been noted in recent VEF soundings with PWAT values increasing to 0.85 inches as recently as 00 UTC Saturday. This moisture, combined with cool mid-level temperatures, will support isolated thunderstorms by late afternoon as ascent associated with a weak mid-level perturbation overspreads the southern Great Basin. Slow storm motions around 10 knots should promote very narrow swaths of rainfall, but very dry boundary layer conditions (similar in nature to the 00 UTC VEF sounding) will likely be in place by peak heating and should promote limited rain accumulation away from the primary downdraft cores. While thunderstorm coverage is expected to be fairly isolated, dry lightning strikes are likely with any storm that can develop and will pose a fire weather concern considering ERCs are at or above the 80th percentile. Elsewhere, very dry conditions will persist across the remainder of the Great Basin with afternoon RH values in the single digits to teens. Surface gradient winds are forecast to generally remain below 15 mph for most locations, which limits confidence in additional fire weather concerns. The general consensus among recent high-res guidance is that the strongest winds will likely be associated with thunderstorm outflows across southern NV/southwest UT and into central AZ. ..Moore.. 08/31/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

11 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1242 AM CDT Sat Aug 31 2024 Valid 311200Z - 011200Z ...Synopsis... Dry thunderstorms will be the primary fire weather concern for today across portions of southern/eastern Nevada into far southwest Utah. A modest monsoonal moisture plume has been slowly spreading northwestward from southern/central AZ into southern NV over the past 12 hours per GOES water-vapor and PWAT imagery. Increasing mid-level moisture has also been noted in recent VEF soundings with PWAT values increasing to 0.85 inches as recently as 00 UTC Saturday. This moisture, combined with cool mid-level temperatures, will support isolated thunderstorms by late afternoon as ascent associated with a weak mid-level perturbation overspreads the southern Great Basin. Slow storm motions around 10 knots should promote very narrow swaths of rainfall, but very dry boundary layer conditions (similar in nature to the 00 UTC VEF sounding) will likely be in place by peak heating and should promote limited rain accumulation away from the primary downdraft cores. While thunderstorm coverage is expected to be fairly isolated, dry lightning strikes are likely with any storm that can develop and will pose a fire weather concern considering ERCs are at or above the 80th percentile. Elsewhere, very dry conditions will persist across the remainder of the Great Basin with afternoon RH values in the single digits to teens. Surface gradient winds are forecast to generally remain below 15 mph for most locations, which limits confidence in additional fire weather concerns. The general consensus among recent high-res guidance is that the strongest winds will likely be associated with thunderstorm outflows across southern NV/southwest UT and into central AZ. ..Moore.. 08/31/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Aug 31, 2024 0100 UTC Day 1 Convective Outlook

11 months ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0750 PM CDT Fri Aug 30 2024 Valid 310100Z - 311200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN GREAT LAKES SOUTHWESTWARD INTO THE MID MISSISSIPPI VALLEY... ...SUMMARY... Isolated severe storms, with marginally severe wind gusts and hail will be possible this evening from southeast Lower Michigan southwestward into the mid Mississippi Valley. ...Southern Great Lakes/Mid Mississippi Valley... The latest mosaic water vapor imagery shows an upper-level trough over the western Great Lakes extending southward into the mid Mississippi Valley. An associated cold front is analyzed from southeast Lower Michigan southwestward to near St. Louis, Missouri. Scattered thunderstorms are ongoing along and near the front. Surface dewpoints near and ahead of the front are in the upper 60s and lower 70s F, and the RAP has MLCAPE in the 1200 to 2500 J/k/g range. In addition, regional WSR-88D VWPs near the front have 0-6 km shear ranging from near 20 knot at St. Louis to around 30 knots at Detroit. This environment, combined with steep low-level lapse rates near 7 C/km, should be enough for a marginally severe wind gusts for a couple more hours this evening. Hail could also occur within the cores of the stronger multicells. ..Broyles.. 08/31/2024 Read more

SPC Aug 31, 2024 0100 UTC Day 1 Convective Outlook

11 months ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0750 PM CDT Fri Aug 30 2024 Valid 310100Z - 311200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN GREAT LAKES SOUTHWESTWARD INTO THE MID MISSISSIPPI VALLEY... ...SUMMARY... Isolated severe storms, with marginally severe wind gusts and hail will be possible this evening from southeast Lower Michigan southwestward into the mid Mississippi Valley. ...Southern Great Lakes/Mid Mississippi Valley... The latest mosaic water vapor imagery shows an upper-level trough over the western Great Lakes extending southward into the mid Mississippi Valley. An associated cold front is analyzed from southeast Lower Michigan southwestward to near St. Louis, Missouri. Scattered thunderstorms are ongoing along and near the front. Surface dewpoints near and ahead of the front are in the upper 60s and lower 70s F, and the RAP has MLCAPE in the 1200 to 2500 J/k/g range. In addition, regional WSR-88D VWPs near the front have 0-6 km shear ranging from near 20 knot at St. Louis to around 30 knots at Detroit. This environment, combined with steep low-level lapse rates near 7 C/km, should be enough for a marginally severe wind gusts for a couple more hours this evening. Hail could also occur within the cores of the stronger multicells. ..Broyles.. 08/31/2024 Read more

SPC Aug 31, 2024 0100 UTC Day 1 Convective Outlook

11 months ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0750 PM CDT Fri Aug 30 2024 Valid 310100Z - 311200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN GREAT LAKES SOUTHWESTWARD INTO THE MID MISSISSIPPI VALLEY... ...SUMMARY... Isolated severe storms, with marginally severe wind gusts and hail will be possible this evening from southeast Lower Michigan southwestward into the mid Mississippi Valley. ...Southern Great Lakes/Mid Mississippi Valley... The latest mosaic water vapor imagery shows an upper-level trough over the western Great Lakes extending southward into the mid Mississippi Valley. An associated cold front is analyzed from southeast Lower Michigan southwestward to near St. Louis, Missouri. Scattered thunderstorms are ongoing along and near the front. Surface dewpoints near and ahead of the front are in the upper 60s and lower 70s F, and the RAP has MLCAPE in the 1200 to 2500 J/k/g range. In addition, regional WSR-88D VWPs near the front have 0-6 km shear ranging from near 20 knot at St. Louis to around 30 knots at Detroit. This environment, combined with steep low-level lapse rates near 7 C/km, should be enough for a marginally severe wind gusts for a couple more hours this evening. Hail could also occur within the cores of the stronger multicells. ..Broyles.. 08/31/2024 Read more

SPC Aug 31, 2024 0100 UTC Day 1 Convective Outlook

11 months ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0750 PM CDT Fri Aug 30 2024 Valid 310100Z - 311200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN GREAT LAKES SOUTHWESTWARD INTO THE MID MISSISSIPPI VALLEY... ...SUMMARY... Isolated severe storms, with marginally severe wind gusts and hail will be possible this evening from southeast Lower Michigan southwestward into the mid Mississippi Valley. ...Southern Great Lakes/Mid Mississippi Valley... The latest mosaic water vapor imagery shows an upper-level trough over the western Great Lakes extending southward into the mid Mississippi Valley. An associated cold front is analyzed from southeast Lower Michigan southwestward to near St. Louis, Missouri. Scattered thunderstorms are ongoing along and near the front. Surface dewpoints near and ahead of the front are in the upper 60s and lower 70s F, and the RAP has MLCAPE in the 1200 to 2500 J/k/g range. In addition, regional WSR-88D VWPs near the front have 0-6 km shear ranging from near 20 knot at St. Louis to around 30 knots at Detroit. This environment, combined with steep low-level lapse rates near 7 C/km, should be enough for a marginally severe wind gusts for a couple more hours this evening. Hail could also occur within the cores of the stronger multicells. ..Broyles.. 08/31/2024 Read more

SPC MD 2038

11 months ago
MD 2038 CONCERNING SEVERE THUNDERSTORM WATCH 665... FOR SOUTHEAST LOWER MICHIGAN
Mesoscale Discussion 2038 NWS Storm Prediction Center Norman OK 0551 PM CDT Fri Aug 30 2024 Areas affected...Southeast lower Michigan Concerning...Severe Thunderstorm Watch 665... Valid 302251Z - 310045Z The severe weather threat for Severe Thunderstorm Watch 665 continues. SUMMARY...The threat for severe wind and hail should persist for the next 2 to 2.5 hours across southeastern Lower Michigan. The greatest severe wind risk may reside along and north of I-65 during this period. DISCUSSION...Convection continues to develop along a cold front across lower MI. Overall intensification has been somewhat gradual, likely owing to somewhat meager large-scale ascent over the region. However, KDTX VWP observations have shown a slight strengthening of mid-level flow over the past 30-60 minutes with 0-6 km bulk shear values increasing closer to 30 knots at times. Additionally, GOES 1-minute imagery shows several strong updraft pulses along the line, indicating that the potential for organized convection persists. Confidence in the coverage of robust convection remains limited given the aforementioned weak forcing for ascent and recent convective trends, but a few severe storms with an attendant hail/severe wind risk remain possible as the cold front continues to push east (especially along and north of I-65 where convection is comparatively more intense based on IR and lightning trends). Latest timing guidance suggests that this activity should exit southeastern lower MI within the next 2-3 hours. ..Moore.. 08/30/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DTX...IWX...GRR... LAT...LON 41898480 42888362 43798304 44058279 44018259 43488235 42998239 42628252 42338274 42068302 41888326 41788357 41738396 41798454 41808474 41898480 Read more

SPC Severe Thunderstorm Watch 665 Status Reports

11 months ago
WW 0665 Status Updates
STATUS REPORT ON WW 665 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 W TOL TO ARB TO 15 E FNT TO 10 S OSC. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2038 ..MOORE..08/30/24 ATTN...WFO...APX...DTX...IWX...GRR... STATUS REPORT FOR WS 665 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MIC063-087-091-099-115-125-147-151-157-163-310040- MI . MICHIGAN COUNTIES INCLUDED ARE HURON LAPEER LENAWEE MACOMB MONROE OAKLAND ST. CLAIR SANILAC TUSCOLA WAYNE LCZ422-423-460-LEZ444-LHZ441-442-443-462-463-464-310040- CW . ADJACENT COASTAL WATERS INCLUDED ARE ST. CLAIR RIVER DETROIT RIVER LAKE ST. CLAIR OPEN LAKE (U.S. PORTION) Read more

SPC Severe Thunderstorm Watch 665

11 months ago
WW 665 SEVERE TSTM MI LE LH 302045Z - 310100Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 665 NWS Storm Prediction Center Norman OK 445 PM EDT Fri Aug 30 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Lower Michigan Lake Erie Lake Huron * Effective this Friday afternoon and evening from 445 PM until 900 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorms are expected to intensify across the watch area through early evening, posing a risk for strong/damaging wind gusts and isolated instances of large hail. A tornado or two will also be possible. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 30 miles northwest of Bad Axe MI to 20 miles west southwest of Ann Arbor MI. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). 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 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26025. ...Bunting Read more

SPC MD 2038

11 months ago
MD 2038 CONCERNING SEVERE THUNDERSTORM WATCH 665... FOR SOUTHEAST LOWER MICHIGAN
Mesoscale Discussion 2038 NWS Storm Prediction Center Norman OK 0551 PM CDT Fri Aug 30 2024 Areas affected...Southeast lower Michigan Concerning...Severe Thunderstorm Watch 665... Valid 302251Z - 310045Z The severe weather threat for Severe Thunderstorm Watch 665 continues. SUMMARY...The threat for severe wind and hail should persist for the next 2 to 2.5 hours across southeastern Lower Michigan. The greatest severe wind risk may reside along and north of I-65 during this period. DISCUSSION...Convection continues to develop along a cold front across lower MI. Overall intensification has been somewhat gradual, likely owing to somewhat meager large-scale ascent over the region. However, KDTX VWP observations have shown a slight strengthening of mid-level flow over the past 30-60 minutes with 0-6 km bulk shear values increasing closer to 30 knots at times. Additionally, GOES 1-minute imagery shows several strong updraft pulses along the line, indicating that the potential for organized convection persists. Confidence in the coverage of robust convection remains limited given the aforementioned weak forcing for ascent and recent convective trends, but a few severe storms with an attendant hail/severe wind risk remain possible as the cold front continues to push east (especially along and north of I-65 where convection is comparatively more intense based on IR and lightning trends). Latest timing guidance suggests that this activity should exit southeastern lower MI within the next 2-3 hours. ..Moore.. 08/30/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DTX...IWX...GRR... LAT...LON 41898480 42888362 43798304 44058279 44018259 43488235 42998239 42628252 42338274 42068302 41888326 41788357 41738396 41798454 41808474 41898480 Read more

SPC Severe Thunderstorm Watch 665 Status Reports

11 months ago
WW 0665 Status Updates
STATUS REPORT ON WW 665 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 W TOL TO ARB TO 15 E FNT TO 10 S OSC. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2038 ..MOORE..08/30/24 ATTN...WFO...APX...DTX...IWX...GRR... STATUS REPORT FOR WS 665 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MIC063-087-091-099-115-125-147-151-157-163-310040- MI . MICHIGAN COUNTIES INCLUDED ARE HURON LAPEER LENAWEE MACOMB MONROE OAKLAND ST. CLAIR SANILAC TUSCOLA WAYNE LCZ422-423-460-LEZ444-LHZ441-442-443-462-463-464-310040- CW . ADJACENT COASTAL WATERS INCLUDED ARE ST. CLAIR RIVER DETROIT RIVER LAKE ST. CLAIR OPEN LAKE (U.S. PORTION) Read more

SPC Severe Thunderstorm Watch 665

11 months ago
WW 665 SEVERE TSTM MI LE LH 302045Z - 310100Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 665 NWS Storm Prediction Center Norman OK 445 PM EDT Fri Aug 30 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Lower Michigan Lake Erie Lake Huron * Effective this Friday afternoon and evening from 445 PM until 900 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorms are expected to intensify across the watch area through early evening, posing a risk for strong/damaging wind gusts and isolated instances of large hail. A tornado or two will also be possible. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 30 miles northwest of Bad Axe MI to 20 miles west southwest of Ann Arbor MI. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). 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 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26025. ...Bunting Read more

SPC Severe Thunderstorm Watch 665 Status Reports

11 months ago
WW 0665 Status Updates
STATUS REPORT ON WW 665 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 ESE SBN TO 15 NNE JXN TO 15 WNW FNT TO 20 WSW OSC. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2038 ..MOORE..08/30/24 ATTN...WFO...APX...DTX...IWX...GRR... STATUS REPORT FOR WS 665 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MIC023-049-059-063-075-087-091-093-099-115-125-147-151-157-161- 163-302340- MI . MICHIGAN COUNTIES INCLUDED ARE BRANCH GENESEE HILLSDALE HURON JACKSON LAPEER LENAWEE LIVINGSTON MACOMB MONROE OAKLAND ST. CLAIR SANILAC TUSCOLA WASHTENAW WAYNE LCZ422-423-460-LEZ444-LHZ421-422-441-442-443-462-463-464- 302340- CW . ADJACENT COASTAL WATERS INCLUDED ARE ST. CLAIR RIVER Read more