Tag: spc

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1127 AM CST Fri Jan 03 2025 Valid 041200Z - 051200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible early Sunday morning across parts of the southern and central Plains eastward across the Ozarks. No severe weather is expected. ...Discussion... While a deep upper low will remain over eastern Canada and New England Saturday, the main feature aloft associated with the primary convective potential will be a short-wave trough initially over the Great Basin vicinity. This feature is forecast to strengthen with time

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1007 AM CST Fri Jan 03 2025 Valid 031630Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Sporadic lightning flashes may occur this afternoon and evening over parts of the coastal Pacific Northwest and northern California. Severe thunderstorms are not expected. ...Synopsis... Surface high pressure from the Rockies to the Southeast will result in a dry and stable airmass for much of the CONUS, precluding thunderstorm activity. The exception may be along portions of the Northwest coastal vicinity. Isolated thunderstorms are possible this afternoon and

SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1249 AM CST Fri Jan 03 2025 Valid 041200Z - 051200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible early Sunday morning across parts of the southern and central Plains eastward into the Ozarks. No severe weather is expected. ...DISCUSSION... A mid-level trough will move from the Intermountain West Saturday morning to the southern Plains early Sunday morning. Low-level moisture advection will take place across the southern and central Plains, ahead of the approaching trough. In response, weak instability is expected to develop

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 PM CST Thu Jan 02 2025 Valid 031200Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Sporadic lightning flashes may occur this afternoon and evening over the coastal Pacific Northwest into interior northern California. Severe weather is not expected. ...Pacific Northwest... Upper ridge will shift east into the Rockies later this afternoon as a strong trough advances inland along the Pacific northwest. Latest guidance suggests 120-150m, 12hr height falls will overspread this region, coincident with highly diffluent flow aloft. Very cold mid-level temperatures, and

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1118 AM CST Thu Jan 02 2025 Valid 031200Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Sporadic lightning flashes may occur Friday afternoon and evening over the coastal Pacific Northwest. Severe weather is not expected. ...Synopsis... The pattern on Friday will feature an upper trough over the eastern CONUS, with a western ridge breaking down late. The shortwave trough responsible for the ridge breakdown will provide rapid cooling aloft late in the day from northern CA into western WA and OR, and overnight across