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Tag: spc

Official

SPC Dec 3, 2024 1300 UTC Day 1 Convective Outlook

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0659 AM CST Tue Dec 03 2024 Valid 031300Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible along the south Texas Coast, but severe thunderstorms are not expected. ...Discussion including South Texas... A persistent longwave trough over the eastern CONUS will be reinforced by an amplifying and southeastward-digging upper trough over the Canadian Prairies toward the Upper Midwest and Great Lakes through tonight. A continued prevalence of surface high pressure and cool/stable continental trajectories will considerably limit and spatially confine thunderstorm
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SPC Dec 3, 2024 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0628 PM CST Mon Dec 02 2024 Valid 030100Z - 031200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Threat for lightning is limited tonight. ...01z Update... Notable mid-level short-wave trough is digging southeast across the OH Valley early this evening. Seasonally cool, lower/mid- tropospheric profiles are resulting in steep lapse rates in the lowest 3-4km across much of the Great Lakes. While this is proving favorable for lake convection, lightning within the deeper, most robust updrafts has been limited. While a few strikes can not be ruled
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SPC Dec 2, 2024 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0255 AM CST Mon Dec 02 2024 Valid 051200Z - 101200Z ...DISCUSSION... A strong cold front will move into the Gulf on Thursday morning with a dry, continental polar airmass to spread across the eastern CONUS in its wake. This will keep thunderstorm activity limited to far south Texas late this week and into the early part of the weekend. Eventually, the moist sector will advect inland across Texas and the ArkLaTex ahead of an approaching mid-level trough late on Saturday and on Sunday. The associated cold
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SPC Dec 2, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook

SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0227 AM CST Mon Dec 02 2024 Valid 041200Z - 051200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few thunderstorms are possible from East Texas into the ArkLaMiss on Wednesday. No severe thunderstorms are expected. ...Synopsis... A strong mid-level jet streak will move out of the Canadian Prairies on Wednesday morning and into the central Ozarks by early Thursday morning. As this occurs, a southwesterly low-level jet will strengthen across East Texas on Wednesday and into Louisiana Wednesday night. This strengthening low-level jet and corresponding
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SPC Dec 2, 2024 0700 UTC Day 2 Convective Outlook

SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0101 AM CST Mon Dec 02 2024 Valid 031200Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible along the Texas Coast and into portions of East Texas. No severe thunderstorms are expected. ...Synopsis... An upper-level trough will move off the east coast on Tuesday. Surface high pressure will progress east in its wake with a strong anticyclone moving from the Ozarks to the southern Appalachians through the weekend. Easterly flow across the Gulf of Mexico on the southern periphery of the
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