SPC – No MDs are in effect as of Sat Nov 23 01:02:02 UTC 2024
No Mesoscale Discussions are in effect as of Sat Nov 23 01:02:02 UTC 2024.
SPC – No watches are valid as of Sat Nov 23 01:02:02 UTC 2024
No watches are valid as of Sat Nov 23 01:02:02 UTC 2024.
SPC Nov 23, 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 Nov 22 2024 Valid 230100Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms may occur this evening from the coasts of Washington and Oregon southeastward into the northern Sierras, but no severe threat is expected. ...DISCUSSION... A mid-level shortwave trough will approach the West Coast this evening. A chance of thunderstorms will exist ahead of the trough in an area of steep mid-level lapse rates and strong large-scale ascent. The potential for thunderstorm activity will be from the coasts
SPC Nov 22, 2024 1300 UTC Day 1 Convective Outlook
SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0642 AM CST Fri Nov 22 2024 Valid 221300Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are unlikely through tonight. ...Synopsis/Discussion... A well-amplified mid/upper-level pattern features synoptic-scale cyclones on either side of the CONUS: 1. In the East, the cyclone core is elongated west-southwest/east- northeast from WV to southern New England, occasionally exhibiting two centers at 500 mb. This cyclone should pivot offshore gradually, with a more consolidated center south of RI and east of NJ by 12Z tomorrow. Associated thunder tonight
SPC – No watches are valid as of Fri Nov 22 12:47:02 UTC 2024
No watches are valid as of Fri Nov 22 12:47:02 UTC 2024.
SPC – No MDs are in effect as of Fri Nov 22 12:47:02 UTC 2024
No Mesoscale Discussions are in effect as of Fri Nov 22 12:47:02 UTC 2024.
SPC Nov 22, 2024 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0338 AM CST Fri Nov 22 2024 Valid 251200Z - 301200Z ...DISCUSSION... Models are in good agreement with the general pattern on Mon/D4, depicting a midlevel speed max nosing into the central Plains Monday morning, then phasing with an upper trough over the northern Plains. This should then result in an amplified shortwave trough moving across the Midwest and Great Lakes through Tue/D5 morning. An associated cold front will shunt the young moist plume back south toward the Gulf Coast. This trough is then expected to eject
SPC – No watches are valid as of Thu Nov 21 21:34:02 UTC 2024
No watches are valid as of Thu Nov 21 21:34:02 UTC 2024.
SPC – No MDs are in effect as of Thu Nov 21 21:34:02 UTC 2024
No Mesoscale Discussions are in effect as of Thu Nov 21 21:34:02 UTC 2024.
SPC Nov 21, 2024 2000 UTC Day 1 Convective Outlook
SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0144 PM CST Thu Nov 21 2024 Valid 212000Z - 221200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. ...Synopsis... A line of convective rain/show showers continues across the Appalachians with occasional lightning flashes. This will persist for a few more hours before weakening late this afternoon as the boundary layer cools and low-level lapse rates weaken. Lightning is expected to remain offshore near the New England coast and the Pacific Northwest coast and therefore, the thunder line has been