SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1105 AM CST Mon Nov 03 2025 Valid 041200Z - 051200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated lightning flashes may occur with low-topped thunderstorms approaching parts of coastal southwest Oregon and northern California late Tuesday night into early Wednesday morning. Organized severe thunderstorms are not forecast. ...Synopsis and Discussion... Dry and/or stable conditions will limit thunderstorm potential across a large majority of the CONUS on Tuesday. One exception may exist for parts of coastal southwest OR and northern CA late Tuesday night into early Wednesday morning. A highly amplified upper trough will approach the West Coast late in the period, with pronounced large-scale ascent overspreading the eastern Pacific and immediate coast of OR/northern CA by 09-12Z Wednesday. With cooling mid-level temperatures, weak but sufficient MUCAPE may exist to support isolated lightning flashes with low-topped thunderstorms moving onshore. Given the expected strength of the low/mid-level flow, gusty winds may occur with this activity. However, the meager forecast instability should limit the threat for organized severe thunderstorms. ..Gleason.. 11/03/2025
