ACUS48 KWNS 200858
SWOD48
SPC AC 200856

Day 4-8 Convective Outlook  
NWS Storm Prediction Center Norman OK
0356 AM CDT Wed May 20 2026

Valid 231200Z - 281200Z

...DISCUSSION...
Severe potential will remain low through the extended period. Weak
troughing will continue across the central Plains through the
weekend before height rises begin across the central US with a high
amplitude ridge settling in from the west. This pattern will remain
in place through early to middle of next week. Slow moisture return
will be ongoing across much of the Plains into the Midwest with
occasional rounds of widespread rainfall and thunderstorms, but
generally weak flow and subsidence will keep organized storm
potential low through D8/Wednesday.

..Thornton.. 05/20/2026