NOAA Storm Prediction Center Outlook

More SPC info on this site: 

SPC Day 4-8 Outlook

Updates are issued at 400 am CST/CDT (0900/1000 UTC) - Current UTC time: Fri, Jan-19-2018 1:09pm GMT


Day 1

D4Mon Jan 22 - Tue Jan 23, 2018 D7Thu Jan 25 - Fri Jan 26, 2018
D5Tue Jan 23 - Wed Jan 24, 2018 D8Fri Jan 26 - Sat Jan 27, 2018
D6Wed Jan 24 - Thu Jan 25, 2018 (All days are valid from 12 UTC - 12 UTC)

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).

Day 2

Day 3