Severe Weather Outlook - Days 4-8



Days 4 - 8 Day 4 Day 5 Day 6 Day 7 Day 8
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D4 Friday, August 17, 2018 - Saturday, August 18, 2018 D7 Monday, August 20, 2018 - Tuesday, August 21, 2018
D5 Saturday, August 18, 2018 - Sunday, August 19, 2018 D8 Tuesday, August 21, 2018 - Wednesday, August 22, 2018
D6 Sunday, August 19, 2018 - Monday, August 20, 2018 (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).