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Storm Prediction Center Outlooks - Days 4 - 8




<Day 3 Outlook
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Day 4-8 Outlook
Day 4 - 8 Outlook
D4Tue March 17th 2026 - Wed March 18th 2026 D7Fri March 20th 2026 - Sat March 21st 2026
D5Wed March 18th 2026 - Thu March 19th 2026 D8Sat March 21st 2026 - Sun March 22nd 2026
D6Thu March 19th 2026 - Fri March 20th 2026 (All days are valid from 12 UTC - 12 UTC)

Note: A severe weather area depicted in the Day 4-8 period indicates a 30% or higher probability for severe thunderstorms within 25 miles of any point.

PREDICTABILITY TOO LOW is used to indicate severe storms may be possible based on some model scenarios. However, the location or occurrence of severe storms are in doubt due to: 1) large differences in the deterministic model solutions, 2) large spread in the ensemble guidance, and/or 3) minimal run-to-run continuity.

POTENTIAL TOO LOW means the threat for a regional area of organized severe storms appears highly unlikely during the entire period (e.g. less than a 30% probability for a regional severe storm area across the CONUS through the entire Day 4-8 period).

Images courtesy of the NWS Storm Prediction Center

 Convective Outlook Discussion - Day 4-8
Convective Outlook unavailable, please try later.

NWS Storm Prediction Center Day 4-8 Outlook