SPC Dec 12, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook
SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0219 AM CST Thu Dec 12 2024 Valid 141200Z - 151200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Texas Hill Country into the Middle/Lower Mississippi Valley on Saturday. ...Synopsis and Discussion... A stacked mid-latitude cyclone is forecast to be over the central Plains early Saturday morning before progressing northeastward throughout the day and ending the period over the Mid MS Valley. This cyclone will be accompanied by strong mid-level jet throughout its base, which will spread from OK northeastward across
SPC Dec 11, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook
SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0150 AM CST Wed Dec 11 2024 Valid 131200Z - 141200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible Friday afternoon through early Saturday morning from the Middle Texas Coast into the Ozark Plateau. ...Synopsis and Discussion... A shortwave trough is forecast to begin the period over the Four Corners before then continuing eastward across the central Rockies and ending the period over the central Plains. An associated surface low is expected to move quickly northeastward just ahead of this shortwave, progressing from
SPC Dec 10, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook
SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0204 AM CST Tue Dec 10 2024 Valid 121200Z - 131200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Thursday. ...Synopsis... A mid/upper cyclone is forecast to be over the Ontario/Quebec vicinity early Thursday morning, with cyclonic flow throughout its base extending from the northern/central Plains through the Northeast. This cyclone is expected to gradually shift eastward through Quebec, with the associated cyclonic flow shifting northward and eastward as well. Farther west, a low-amplitude shortwave trough is expected to progress across the Great
SPC Dec 9, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook
SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0230 AM CST Mon Dec 09 2024 Valid 111200Z - 121200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible along and ahead of a cold front from the Mid-Atlantic into the Florida Peninsula on Wednesday. ...Synopsis and Discussion... Deep upper troughing is expected to extend from Saskatchewan/western Ontario southward along the length of the MS Valley into the western Gulf early Wednesday morning. A shortwave trough embedded within the base of this larger troughing is forecast to move quickly northeastward from the Lower
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
SPC Dec 1, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook
SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 1247 AM CST Sun Dec 01 2024 Valid 031200Z - 041200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... No thunderstorms are expected across the CONUS. ...Synopsis... A strong anticyclone will migrate across the eastern CONUS on Tuesday which will result in 15 to 20 knots of east-southeasterly flow across the western Gulf. As a result, some mid to upper 60s dewpoints may advect inland across south Texas. However, these dewpoints are expected to be confined to coastal areas with minimal instability present. A few thunderstorms are possible
SPC Nov 30, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook
SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0208 AM CST Sat Nov 30 2024 Valid 021200Z - 031200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible on Monday across south Texas. Severe storms are not expected. ...Synopsis... A pronounced upper trough from eastern Canada south into the eastern U.S. will move slowly east Monday, with broad cyclonic flow persisting over most of the CONUS east of the Rockies. Surface high pressure will build south across much of the Plains, Mississippi Valley and southeast, limiting the return of appreciable low-level
SPC Nov 29, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook
SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0109 AM CST Fri Nov 29 2024 Valid 011200Z - 021200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Sunday. ...Synopsis... The overall pattern will not change much from Day 2/Sat to Day 3/Sun. A broad upper trough will persist across the eastern CONUS while and Pacific coast upper ridge migrates modestly eastward. A lightning flash or two will remain possible across the Great Lakes within lake effect snow bands, but very minor instability will keep coverage less than 10 percent. Easterly low-level
SPC Nov 26, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook
SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0220 AM CST Tue Nov 26 2024 Valid 281200Z - 291200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PARTS OF THE SOUTHEAST... ...SUMMARY... Scattered strong to potentially severe thunderstorms are possible Thursday across parts of the Southeast. ...Synopsis... Uncertainty regarding synoptic evolution on D2/Wednesday continues into D3/Thanksgiving Day. In general, a low-amplitude mid/upper-level shortwave trough and attendant surface cyclone are forecast to move east-northeastward from the TN Valley/southern Appalachians vicinity toward the Mid Atlantic and eventually offshore, as a trailing cold front moves
SPC Nov 21, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook
SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0148 AM CST Thu Nov 21 2024 Valid 231200Z - 241200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms appear unlikely across the USA on Saturday. ...Synopsis... A temporary/weakening upper ridge will exist over the Plains, with a departing trough over the Northeast and a broad region of west/southwest flow aloft over the West. By 12Z Sunday, this ridge will all but disappear due in part to an upper wave from MT into ND, and continued height falls across the West. The beginnings of moisture return will