(All days are valid from 12 UTC - 12 UTC the following day)
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).
ZCZC SPCSWOD48 ALL
ACUS48 KWNS 090836
SPC AC 090836
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0336 AM CDT SUN MAR 09 2014
VALID 121200Z - 171200Z
FAST-MOVING SHORT WAVES WITHIN BROADER NWLY FLOW REGIME WILL BE
NOTED DURING THE UPCOMING MEDIUM RANGE PERIOD. WHILE SEVERAL OF
THESE FEATURES WILL BE SIGNIFICANT/STRONG...THE PROSPECT FOR
MEANINGFUL MOISTURE TO ADVANCE INLAND COINCIDENT WITH REGIONS OF
ASCENT SHOULD REMAIN MINIMAL. ANY THUNDERSTORMS THAT EVOLVE AHEAD
OF AFOREMENTIONED SHORT-WAVE TROUGHS WILL LIKELY REMAIN BELOW
ORGANIZED SEVERE LEVELS.
CLICK TO GET WUUS48 PTSD48 PRODUCT