Tag: utc

Official

SPC Dec 10, 2024 0700 UTC Day 2 Convective Outlook

SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1256 AM CST Tue Dec 10 2024 Valid 111200Z - 121200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM EASTERN NC INTO SOUTHERN NEW ENGLAND... ...SUMMARY... Strong to isolated severe thunderstorms are possible along and ahead of a cold front from eastern North Carolina into southern New England on Wednesday. ...Synopsis... A deep upper trough is expected to extend from central Canada southward along the length of the MS Valley into the western Gulf early Wednesday morning. A shortwave trough embedded within the base
Official

SPC Dec 10, 2024 0600 UTC Day 1 Convective Outlook

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1147 PM CST Mon Dec 09 2024 Valid 101200Z - 111200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE CENTRAL GULF COAST REGION AND INTO SOUTHWESTERN GEORGIA AND THE FLORIDA PANHANDLE... ...SUMMARY... A few strong to severe thunderstorms are possible across portions of the central Gulf Coast region into southwestern Georgia and the Florida Panhandle today. ...Synopsis... An amplifying upper trough will cross the central third of the U.S. today, taking on weak negative tilt by late in the period as it reaches
Official

SPC Dec 9, 2024 2000 UTC Day 1 Convective Outlook

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0144 PM CST Mon Dec 09 2024 Valid 092000Z - 101200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS SOUTHEASTERN LOUISIANA INTO SOUTHERN MISSISSIPPI... ...SUMMARY... Thunderstorms are possible from the Lower Mississippi Valley into much of the Southeast States today and tonight. Isolated strong to severe storms may affect parts of southern Louisiana and Mississippi. ...20Z Update... No changes to the ongoing forecast. Prior forecast reasoning remains valid as some destabilization has occurred in parts of southern Louisiana into southern Mississippi. The strongest storms could
Official

SPC Dec 9, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0111 PM CST Mon Dec 09 2024 Valid 111200Z - 121200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM EASTERN NORTH CAROLINA TO SOUTHERN NEW ENGLAND... ...SUMMARY... Strong to isolated severe thunderstorms are possible along and ahead of a cold front from the Mid-Atlantic into the Florida Peninsula on Wednesday. ...Synopsis... As a strong mid-level trough becomes negatively tilted across the eastern CONUS, a surface low will deepen as it moves north along the spine of the Appalachians and tropospheric flow will strengthen across
Official

SPC Dec 9, 2024 1730 UTC Day 2 Convective Outlook

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1048 AM CST Mon Dec 09 2024 Valid 101200Z - 111200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF CENTRAL AND SOUTH AL...SOUTHWEST GA...AND THE ADJACENT FL PANHANDLE... ...SUMMARY... Isolated severe thunderstorms are possible across portions of central and south Alabama, southwest Georgia, and the adjacent Florida Panhandle on Tuesday. ...Southeast... An upper-level trough will amplify and transition from positively tilted across the Southwest Tuesday morning to negatively tilted by early Wednesday morning across the Mississippi Valley. Persistent weak southerly flow will
Official

SPC Dec 9, 2024 1630 UTC Day 1 Convective Outlook

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1008 AM CST Mon Dec 09 2024 Valid 091630Z - 101200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS PARTS OF SOUTHERN LOUISIANA AND MISSISSIPPI.... ...SUMMARY... Thunderstorms are possible from the Lower Mississippi Valley into much of the Southeast States today and tonight. Isolated strong to severe storms may affect parts of southern Louisiana and Mississippi. ...LA/MS... Morning water vapor imagery shows a low-amplitude shortwave trough moving across central TX. This feature will track into the lower MS valley this
Official

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