Tag: 1300

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0743 AM CDT Thu Mar 20 2025 Valid 201300Z - 211200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorm development will be possible today in parts of the Mid-Atlantic and northern Rockies. Severe weather is not expected. ...Eastern NC/southeast VA this afternoon... A midlevel trough and an associated surface cold front will progress eastward from the Appalachians to the Atlantic coast by late this evening/early tonight. Only a narrow corridor of low-level moistening is expected ahead of the front, as a result of only partial air

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0745 AM CDT Wed Mar 19 2025 Valid 191300Z - 201200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR PARTS OF CENTRAL/NORTHERN ILLINOIS AND WEST CENTRAL INDIANA... ...SUMMARY... Scattered severe thunderstorms are possible this afternoon/evening from central/northern Illinois to western Indiana. A few tornadoes, large hail, and damaging wind gusts will be possible. ...IL/IN this afternoon into early tonight... A deep (989 mb) cyclone near the northeast KS/northwest MO border will move northeastward to northern IL by this evening and Lower MI

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0739 AM CDT Tue Mar 18 2025 Valid 181300Z - 191200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS LATE TONIGHT FROM EASTERN NE INTO IA... ...SUMMARY... Isolated, marginally severe hail is possible late tonight from eastern Nebraska across much of Iowa. ...Eastern NE/IA late tonight and early Wednesday... In advance of a pronounced midlevel shortwave trough over UT/northern AZ this morning, a surface lee cyclone will deepen across western KS and then move to far northwest MO by early Wednesday. Moisture return in the

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0720 AM CDT Fri Mar 14 2025 Valid 141300Z - 151200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS ACROSS THE MID-MISSISSIPPI VALLEY AND PORTIONS OF THE LOWER OHIO VALLEY AND MID SOUTH... ...SUMMARY... A regional outbreak of severe storms is likely across the Mid-Mississippi Valley to the Lower-Mississippi Valley, including portions of the Lower Ohio Valley and Mid South. Tornadoes, several of which could be strong, widespread severe gusts ranging from 60 to 100 mph, and scattered large hail up to baseball size will

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0743 AM CDT Thu Mar 13 2025 Valid 131300Z - 141200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM NORTHEAST MISSISSIPPI SOUTHEAST ACROSS ALABAMA AND INTO THE FLORIDA PANHANDLE AND WESTERN GEORGIA... ...SUMMARY... A few severe thunderstorms producing hail and locally damaging gusts are possible from eastern Mississippi into Alabama, western Georgia, and parts of the Florida Panhandle today. ...Synopsis... Water-vapor imagery this morning shows a convectively enhanced mid-level vorticity max near the AR/TN/MS border and located within a larger mid-level trough centered over

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0754 AM CDT Wed Mar 12 2025 Valid 121300Z - 131200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR PARTS OF NORTH AND NORTHEAST TEXAS AND SOUTHEAST OKLAHOMA INTO SOUTHWEST ARKANSAS AND NORTHWEST LOUISIANA... ...SUMMARY... Scattered severe thunderstorms are possible from north Texas and southeast Oklahoma into the Ark-La-Tex late this afternoon and evening. Large to very large hail and severe gusts are the primary hazards. ...Synopsis... Water-vapor imagery this morning shows a potent mid-level shortwave trough over NM/Chihuahua quickly moving eastward into Far

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0653 AM CDT Tue Mar 11 2025 Valid 111300Z - 121200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are expected across far southern California and into Arizona today into tonight. Severe storms are not expected. ...Discussion... A potent mid to upper-level low west of southern CA will move east and evolve into an open trough and reach the AZ-NM/Sonora-Chihuahua border vicinity by early Wednesday morning. Isolated to widely scattered showers associated with the cold core will spread east during the day from southern CA

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0725 AM CDT Mon Mar 10 2025 Valid 101300Z - 111200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR NORTHERN AND CENTRAL PORTIONS OF THE FLORIDA PENINSULA... ...SUMMARY... Thunderstorms associated with an isolated risk for severe gusts, and potentially a tornado, will be possible through early afternoon in parts of north and central Florida. ...FL Peninsula... Morning satellite/radar analysis shows a mid-level trough over AL/MS moving east-southeast towards FL, while a broken band of pre-frontal showers/storms extends from parts of north FL south-southwestward into

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0747 AM CDT Sun Mar 09 2025 Valid 091300Z - 101200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR SOUTHEAST ALABAMA INTO SOUTHERN GEORGIA AND INTO NORTH FLORIDA AND THE PANHANDLE... ...SUMMARY... Isolated strong to severe thunderstorms are possible today from parts of northern Florida into far southeast Alabama and southern Georgia. ...Far Southeast Alabama/Southern Georgia/Northern Florida... Morning surface analysis places a low near the mouth of the MS River and a maritime front draped east over the continental shelf waters south of the

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0648 AM CST Sat Mar 08 2025 Valid 081300Z - 091200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM NORTH TEXAS EASTWARD ALONG THE NORTHERN GULF COAST... ...SUMMARY... Isolated severe storms will be possible today and tonight from parts of the southern Plains eastward into the northern Gulf Coast states. ...TX eastward into the northern Gulf Coast states... Water-vapor imagery this morning shows a mid- to upper-level low over western NM, with the larger-scale trough pivoting east across northern Mexico. The mid-level low will