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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
D4Wed October 20th 2021 - Thu October 21st 2021 D7Sat October 23rd 2021 - Sun October 24th 2021
D5Thu October 21st 2021 - Fri October 22nd 2021 D8Sun October 24th 2021 - Mon October 25th 2021
D6Fri October 22nd 2021 - Sat October 23rd 2021 (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
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NWS Storm Prediction Center Day 4-8 Outlook