SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC Jul 30, 2024 Day 4-8 Severe Weather Outlook

1 year 1 month ago
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Tue Jul 30 2024 Valid 021200Z - 071200Z ...DISCUSSION... On Friday and into the weekend, a mid-level trough will slow and eventually stall across the eastern CONUS. Given remnant moisture, expect widespread thunderstorm activity. However, severe weather should be limited by weak shear in the region. A large-amplitude mid-level ridge which is forecast to build across the western CONUS on Thursday and Friday will start to deamplify over the weekend as a series of mid-level shortwave troughs traverse British Columbia and Alberta. The exact evolution of the pattern over the weekend and beyond remains uncertain. There is consensus for multiple mid-level troughs to move through the northern CONUS with at least some lee troughing across the northern Plains. Some severe weather is possible with any of these passing impulses. However, uncertainty remains too high at this time for severe weather probabilities. Read more

SPC MD 1737

1 year 1 month ago
MD 1737 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR SOUTHERN OH
Mesoscale Discussion 1737 NWS Storm Prediction Center Norman OK 0123 AM CDT Tue Jul 30 2024 Areas affected...southern OH Concerning...Severe potential...Watch unlikely Valid 300623Z - 300800Z Probability of Watch Issuance...5 percent SUMMARY...A brief tornado and localized damaging wind threat may persist for a another hour or two with a cluster moving east-southeast across a portion of southern Ohio. Overall threat is expected to subside before dawn. DISCUSSION...A cluster intensified last hour over southwest OH with at least one TDS noted just southwest of the ILN radar into Clinton County. A surge in IR cloud top cooling occurred just before this TDS and has since warmed, but transient mesovortices remain possible along the leading edge of the gust front. While there is adequate low-level shear in the ILN VWP data, weaker flow with minimal change in direction has persisted above 1 km AGL, suggesting long-term organizational potential will be limited. Downstream buoyancy is increasingly meager with eastern extent (below 500 J/kg) as this cluster progresses east-southeast at around 35 kts. As such, the brief tornado/localized damaging wind threat will probably diminish after about 08Z. ..Grams/Guyer.. 07/30/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...RLX...ILN... LAT...LON 39588368 39718305 39628232 39168206 38818223 38648254 38728303 38848370 39238385 39588368 Read more

SPC MD 1738

1 year 1 month ago
MD 1738 CONCERNING SEVERE THUNDERSTORM WATCH 565... FOR WESTERN TO SOUTH-CENTRAL IA
Mesoscale Discussion 1738 NWS Storm Prediction Center Norman OK 0145 AM CDT Tue Jul 30 2024 Areas affected...Western to south-central IA Concerning...Severe Thunderstorm Watch 565... Valid 300645Z - 300745Z The severe weather threat for Severe Thunderstorm Watch 565 continues. SUMMARY...Strong to localized severe gusts may spread east-southeast of WW 565 with approach of a short-line segment over west-central/southwest Iowa. An extension of the watch in area has been coordinated. DISCUSSION...A short-line segment which produced several measured severe wind gusts of 60-70 mph closer to the MO Valley, has appeared to weaken slightly over the past hour. Still, it has produced a few measured wind gusts of 50-60 mph, and similar intensity may persist east-southeastward as the segment approaches the I-35 corridor in central/south-central IA. Longevity of the strong to severe wind threat is uncertain as the line segment and associated MCV progress towards eastern IA. The presence of the MLCAPE gradient should maintain stronger gust potential in the near-term, but relatively weak low-level flow (with the low-level jet well to the southwest in KS) may yield a gradual diminishing trend towards dawn. ..Grams.. 07/30/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DVN...DMX...OAX... LAT...LON 42469476 42309381 42199347 42029274 41739223 41369225 41209229 40999285 40959398 40979490 41279545 41609531 42219481 42469476 Read more

SPC Severe Thunderstorm Watch 564 Status Reports

1 year 1 month ago
WW 0564 Status Updates
STATUS REPORT ON WW 564 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ESE VVV TO 25 NNW AXN TO 30 NNE DTL. WW 564 WILL BE ALLOWED TO EXPIRE AT 300800Z. ..GRAMS..07/30/24 ATTN...WFO...FGF...ABR...MPX... STATUS REPORT FOR WS 564 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MNC005-041-111-121-151-300800- MN . MINNESOTA COUNTIES INCLUDED ARE BECKER DOUGLAS OTTER TAIL POPE SWIFT 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 564 Status Reports

1 year 1 month ago
WW 0564 Status Updates
STATUS REPORT ON WW 564 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ESE VVV TO 25 NNW AXN TO 30 NNE DTL. WW 564 WILL BE ALLOWED TO EXPIRE AT 300800Z. ..GRAMS..07/30/24 ATTN...WFO...FGF...ABR...MPX... STATUS REPORT FOR WS 564 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MNC005-041-111-121-151-300800- MN . MINNESOTA COUNTIES INCLUDED ARE BECKER DOUGLAS OTTER TAIL POPE SWIFT 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 564 Status Reports

1 year 1 month ago
WW 0564 Status Updates
STATUS REPORT ON WW 564 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ESE VVV TO 25 NNW AXN TO 30 NNE DTL. WW 564 WILL BE ALLOWED TO EXPIRE AT 300800Z. ..GRAMS..07/30/24 ATTN...WFO...FGF...ABR...MPX... STATUS REPORT FOR WS 564 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MNC005-041-111-121-151-300800- MN . MINNESOTA COUNTIES INCLUDED ARE BECKER DOUGLAS OTTER TAIL POPE SWIFT 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