SPC Dec 22, 2024 0100 UTC Day 1 Convective Outlook
SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0653 PM CST Sat Dec 21 2024 Valid 220100Z - 221200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected across the USA through tomorrow morning. The minimal thunderstorm threat has ended over parts of the Pacific Northwest as rapid warming aloft is underway behind a compact shortwave trough. Instability is not expected to materialize downstream into ID and MT, and as such all thunderstorm probabilities have been removed. Elsewhere, high pressure over the East and a dry air mass over land will maintain stable
SPC – No MDs are in effect as of Sat Dec 21 13:25:02 UTC 2024
No Mesoscale Discussions are in effect as of Sat Dec 21 13:25:02 UTC 2024.
SPC – No watches are valid as of Sat Dec 21 13:25:02 UTC 2024
No watches are valid as of Sat Dec 21 13:25:02 UTC 2024.
SPC Dec 21, 2024 1300 UTC Day 1 Convective Outlook
SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0650 AM CST Sat Dec 21 2024 Valid 211300Z - 221200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible this morning into early afternoon across parts of coastal Oregon and northern California. ...Coastal OR/northern CA... A potent mid to upper-level shortwave trough will move ashore the northern CA/OR coast and continue northeastward into the southern Canadian Rockies/northern Rockies vicinity through late tonight. Weak thunderstorm activity embedded within a warm-air advection rain shield will continue moving into the coastal range mountains this morning before
SPC Dec 21, 2024 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0322 AM CST Sat Dec 21 2024 Valid 241200Z - 291200Z ...DISCUSSION... A more active southern-stream pattern is expected next week with several lower latitude troughs crossing the southern tier, along with some northward increase in low-level moisture across parts of Texas to the Lower Mississippi Valley and Gulf Coast. On Tuesday/Day 4, one such shortwave trough should influence increasing thunderstorm potential across south-central to east/southeast Texas. Some severe risk could materialize Tuesday, but it appears that overall buoyancy will be weak with the severe potential currently
SPC – No MDs are in effect as of Sat Dec 21 01:21:02 UTC 2024
No Mesoscale Discussions are in effect as of Sat Dec 21 01:21:02 UTC 2024.
SPC – No watches are valid as of Sat Dec 21 01:21:02 UTC 2024
No watches are valid as of Sat Dec 21 01:21:02 UTC 2024.
SPC Dec 21, 2024 0100 UTC Day 1 Convective Outlook
SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0644 PM CST Fri Dec 20 2024 Valid 210100Z - 211200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible along the northern California coast early morning Saturday. ...Northern CA coast... An amplified upper trough will move northeast and approach the Pacific Northwest coast through 12Z Saturday. This will yield a pronounced low-level warm conveyor to overspread the adjacent offshore waters. This forcing for ascent in conjunction with an ample buoyancy plume has supported scattered to widespread thunderstorms around 500-600 miles offshore. This buoyancy
SPC – No watches are valid as of Fri Dec 20 12:51:02 UTC 2024
No watches are valid as of Fri Dec 20 12:51:02 UTC 2024.
SPC – No MDs are in effect as of Fri Dec 20 12:51:02 UTC 2024
No Mesoscale Discussions are in effect as of Fri Dec 20 12:51:02 UTC 2024.