SPC Apr 11, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1211 PM CDT Fri Apr 11 2025 Valid 121200Z - 131200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS NORTHERN WYOMING AND SOUTHEAST MONTANA TO THE BLACK HILLS... ...SUMMARY... Isolated severe gusts are possible from the Big Horns to the Black Hills during the late afternoon to mid-evening Saturday. ...Southeast Montana/northeast Wyoming to the Black Hills... A mid-level shortwave trough across the Pacific Northwest/southern British Columbia will advance east through the day Saturday. Height falls across northern Wyoming and southeast Montana will lead to strengthening
SPC Apr 11, 2025 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0330 AM CDT Fri Apr 11 2025 Valid 141200Z - 191200Z ...DISCUSSION... ...D4/Monday... Further amplification of a broadening mid/upper-level trough and attendant surface cyclone is expected across the Upper Great Lakes to the southern ON/QC border area. Poleward moisture quality from the western Gulf will remain sub-optimal, but will continue to improve beneath a lobe of the southern Great Plains EML. The northeast extent of weak surface buoyancy should overspread the OH Valley by Monday afternoon. This portion of the front will coincide with robust 700-500 mb
SPC – No watches are valid as of Fri Apr 11 08:34:02 UTC 2025
No watches are valid as of Fri Apr 11 08:34:02 UTC 2025.
SPC – No MDs are in effect as of Fri Apr 11 08:34:02 UTC 2025
No Mesoscale Discussions are in effect as of Fri Apr 11 08:34:02 UTC 2025.
SPC Apr 11, 2025 0730 UTC Day 3 Severe Thunderstorm Outlook
SPC 0730Z Day 3 Outlook Day 3 Convective Outlook CORR 1 NWS Storm Prediction Center Norman OK 0322 AM CDT Fri Apr 11 2025 Valid 131200Z - 141200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... CORRECTED FOR GRAPHIC ...SUMMARY... Severe thunderstorms are not expected on Sunday or Sunday night. ...Upper MS Valley/Great Lakes... A shortwave trough over the northern High Plains on Sunday morning is expected to amplify as it moves east into the northern Upper Midwest. This will maintain a deep surface cyclone from the central Great Plains into the Upper Great Lakes. Guidance has above-average spread across latest runs and
SPC Apr 11, 2025 0600 UTC Day 2 Convective Outlook
SPC 0600Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1237 AM CDT Fri Apr 11 2025 Valid 121200Z - 131200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS IN PARTS OF NORTHEAST WY/SOUTHEAST MT/WESTERN SD... ...SUMMARY... Isolated severe gusts to 65 mph are possible from the Big Horns to the Black Hills during the late afternoon to mid-evening Saturday. ...Big Horns to the Black Hills... A shortwave trough over WA/southern BC at 12Z Saturday will progress across the northern Rockies and MT. Mid-level height falls will overspread the northern High Plains during peak diurnal
SPC Apr 11, 2025 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1224 AM CDT Fri Apr 11 2025 Valid 111200Z - 121200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE EASTERN CAROLINAS...SOUTHEAST VIRGINIA...SOUTHEAST GEORGIA AND NORTHERN FLORIDA... ...SUMMARY... Isolated strong to locally severe thunderstorms are possible from the eastern Carolinas into southeast Virginia and across far southeast Georgia and northern Florida. ...Eastern Carolinas/Southeast Virginia/Southeast Georgia/Northern Florida... At mid-levels, a trough will move eastward across the eastern U.S. today, as a jet streak rounds the base of the system. At the surface, a
SPC Apr 10, 2025 2000 UTC Day 1 Convective Outlook
SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0300 PM CDT Thu Apr 10 2025 Valid 102000Z - 111200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE LOWER MISSISSIPPI VALLEY AND SOUTHEAST... ...SUMMARY... Scattered strong to severe thunderstorms are expected from portions of the lower Ohio Valley into the Southeast through this afternoon and evening. Large hail and damaging winds should be the main threats. ...20z Update... Ahead of the cold front moving across the OH/MS Valleys, strong heating has promoted gradual destabilization and multiple corridors of storm formation
SPC Apr 10, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook
SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0230 PM CDT Thu Apr 10 2025 Valid 121200Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Saturday or Saturday night. ...Central Rockies to the Upper Midwest... A mid-level ridge will deamplify through the day on Saturday as a mid-level shortwave trough progresses out of the northern Rockies into the northern Plains. Large-scale ascent will strengthen near peak diurnal heating across parts of the central Rockies to the Black Hills. With limited buoyancy, isolated/short-lived thunderstorms are anticipated amid scattered
SPC Apr 10, 2025 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0333 AM CDT Thu Apr 10 2025 Valid 131200Z - 181200Z ...DISCUSSION... Primary feature of interest will be a shortwave trough over MT at 12Z Sunday and its major amplification into a broad eastern CONUS/southeast Canadian trough through mid-week. Poleward moisture quality from the western Gulf will remain sub-optimal, but will improve through D5/Monday. The northeast extent of weak surface buoyancy should reach the OH Valley by Monday afternoon, where guidance has been trending farther south with an intense mid-level jet. Given a prior EML and the