Tag: 1300

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0632 AM CST Tue Feb 25 2025 Valid 251300Z - 261200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the northern and central Plains today into the Mid Mississippi Valley overnight. A few isolated thunderstorms are possible across western Colorado as well. Severe thunderstorms are not anticipated. ...Synopsis and Discussion... Early morning satellite imagery reveals an active northern stream, with one shortwave trough progressing through the Upper Great Lakes/OH Valley and another moving into the northern Rockies, downstream of a cyclone moving

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0630 AM CST Mon Feb 24 2025 Valid 241300Z - 251200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS OVER FAR SOUTHERN FL INCLUDING THE KEYS...AND OVER PARTS OF EASTERN OR AND WA... ...SUMMARY... Scattered strong storms will be possible across the Florida Keys and into far southern Florida from late afternoon through evening. Localized damaging gusts or a brief tornado may occur. Isolated strong winds are also expected from the Oregon Cascades into southeast Washington. ...Far Southern FL and the FL Keys... Shortwave trough

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0638 AM CST Sun Feb 23 2025 Valid 231300Z - 241200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are forecast across portions of Louisiana and immediate surrounding areas today. Additional isolated thunderstorms may occur in portions of Oregon/Washington. No severe weather is expected. ...Synopsis and Discussion... Satellite imagery shows a well-defined shortwave trough moving through the southern stream across TX. This shortwave is forecast to continue eastward throughout the day, progressing through the Lower MS Valley and ending the period over AL. Another shortwave trough

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0630 AM CST Sat Feb 22 2025 Valid 221300Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Scattered thunderstorms remain possible from the middle and upper Texas Coast toward the Sabine Valley late today and overnight. A few storms could produce some small hail. ...Synopsis... Recent satellite imagery shows a pair of shortwave troughs progressing through the southern stream, with the lead wave moving through the Ozark Plateau and the second wave dropping through AZ towards northern Mexico. The lead wave is forecast to continue

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0631 AM CST Fri Feb 21 2025 Valid 211300Z - 221200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... The risk for thunderstorms appears negligible across the U.S. today through tonight. ...Synopsis... Early morning surface analysis places the center of an expansive area of high pressure over MO. This area of high pressure (and its associated continental arctic airmass) is gradually expected to shift eastward throughout the day as shortwave trough progresses across the central Plains and into the Mid MS Valley. This evolution will maintain low-level offshore

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0648 AM CST Fri Feb 14 2025 Valid 141300Z - 151200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are unlikely today and tonight. ...Synopsis and Discussion... A large-scale upper trough over the western CONUS will further amplify today as it moves over the Southwest and southern/central Rockies. In association with this feature and related cold mid-level temperatures, isolated thunderstorms appear possible across parts of the southern Great Basin and Four Corners vicinity. But, overall coverage/intensity of this convection should be limited by meager low-level

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0643 AM CST Thu Feb 13 2025 Valid 131300Z - 141200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM THE FLORIDA PANHANDLE INTO SOUTHERN GEORGIA...AND OVER PARTS OF THE CENTRAL VALLEY OF CALIFORNIA... ...SUMMARY... Isolated, marginally severe storms are possible from the Florida Panhandle into southern Georgia and parts of the Central Valley of California. Damaging winds and a brief tornado are the primary threats. ...Southeast... Lead shortwave trough continues to progress through the OH Valley this morning, and is expected to continue northeastward

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0651 AM CST Wed Feb 12 2025 Valid 121300Z - 131200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHEAST LA...SOUTHERN MS...AND SOUTHERN/CENTRAL AL... ...SUMMARY... Severe storms will be possible this afternoon through late tonight from the Lower Mississippi Valley into and western Georgia. Primary severe hazards include the risk for a few tornadoes and scattered damaging gusts. ...Lower MS Valley into the Southeast... Lead shortwave trough continues to progress across east TX, while the broad parent upper troughing shifts eastward through the southern

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0647 AM CST Tue Feb 11 2025 Valid 111300Z - 121200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM SOUTHEAST TEXAS AND THE LOWER MISSISSIPPI VALLEY INTO SOUTHERN MISSISSIPPI AND CENTRAL ALABAMA.... ...SUMMARY... Isolated to scattered thunderstorms are possible from the southern Plains into the lower Mississippi Valley. Some strong to severe thunderstorms are possible from southeast Texas and the Lower Mississippi Valley into southern Mississippi and central Alabama. ...Synopsis... A pair of shortwave troughs are expected to progress through the southern Plains today

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0645 AM CST Mon Feb 10 2025 Valid 101300Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from central Texas across southeast Oklahoma into western Arkansas tonight. ...TX/OK/AR... Recent satellite imagery shows a well-defined shortwave trough off the southern CA/Baja CA coast. This feature is forecast to progress quickly east-northeastward throughout the day, traversing the Southwest/northern Mexico and reaching the southern Plains by tomorrow morning. Airmass ahead of this feature across the southern Plains is currently cool and dry, with the