Tag: 1300

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

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0648 AM CST Sun Feb 09 2025 Valid 091300Z - 101200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A low risk for a few thunderstorms exists early in the period across the Mid-South region. ...Synopsis... Broadly cyclonic flow aloft, with several embedded shortwave troughs, is expected across the northern CONUS today. Largely zonal flow is anticipated across the southern CONUS, with negligible height changes. Recent surface analysis shows an expansive area of high pressure associated with a dry, continental airmass covering much of the central and

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0644 AM CST Sat Feb 08 2025 Valid 081300Z - 091200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorm development is possible across parts of the Ohio Valley today. ...Ohio Valley... A low-amplitude shortwave trough currently extends from western ND southwestward through western/central WY. This shortwave is expected to progress quickly eastward throughout the day, moving across the Great Lakes and reaching the Northeast by early tomorrow. In response, the surface low currently over central OK is forecast to rapidly translate northeastward through

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0646 AM CST Fri Feb 07 2025 Valid 071300Z - 081200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through Friday night. ...Synopsis and Discussion... Predominantly zonal upper flow is currently in place across the CONUS as one shortwave trough progresses through the Canadian Maritimes and another moves through the Pacific Northwest. High surface pressure is expected the shift eastward across the OH Valley in the wake of the Canadian Maritime shortwave. A weakening cold front exists between the more continental air