Tag: utc

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1231 AM CDT Sat Mar 22 2025 Valid 221200Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS OVER MUCH OF MISSOURI...EASTERN KANSAS...AND FAR NORTHEAST OKLAHOMA... ...SUMMARY... Scattered thunderstorms capable of producing isolated large hail and strong gusts are possible this evening and overnight from northeast Oklahoma into portions of eastern Kansas and much of Missouri. ...Synopsis... As a leading shortwave trough moves eastward across the Mid Atlantic, high pressure behind a cold front will shift into the Great Lakes and OH/TN Valleys, also

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1211 PM CDT Fri Mar 21 2025 Valid 221200Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PORTIONS OF EASTERN KANSAS INTO MISSOURI... ...SUMMARY... A few thunderstorms capable of producing isolated severe gusts/hail are possible Saturday night into early Sunday morning across portions of eastern Kansas into Missouri. ...Synopsis... A mid-level trough will rapidly traverse the central Rockies and eject into the Plains states as another mid-level trough moves into the Atlantic tomorrow (Saturday). Surface cyclone development should take place over the

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1124 AM CDT Fri Mar 21 2025 Valid 211630Z - 221200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast today. ...Iowa Vicinity... An upper shortwave trough will move across the Midwest today and tonight, with increasing deep-layer west/northwest flow associated with this feature overspreading the region. Boundary layer moisture will remain scant ahead of an east/southeast moving cold front sweeping across the Lower MO/Mid-MS Valley this afternoon and evening. Nevertheless, very cold temperatures aloft (near -25 C at 500 mb, as sampled

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1146 PM CDT Thu Mar 20 2025 Valid 211200Z - 221200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast today. ...Synopsis... A northwest flow regime will exist across the CONUS today, with multiple embedded waves. In general, minimal thunderstorm activity is forecast due to a relatively stable air mass due to high pressure. One such high will be situated over the Southeast and into the Gulf through the period, with minimal moisture return into southern TX. Another surface high will be centered

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1159 AM CDT Thu Mar 20 2025 Valid 211200Z - 221200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected Friday. ...Mid-MO/MS Valleys... A compact shortwave impulse currently over the northern Rockies will progress across parts of the Mid-MO/MS Valleys Friday. Despite a dearth of low-level moisture, diurnally steepening lapse rates along with a focused corridor of moderate large-scale ascent should support a swath of isolated to scattered low-topped convection, primarily from late morning to early evening. Meager buoyancy should be adequate for