Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0640 PM CST Fri Feb 20 2026
Valid 210100Z - 211200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Severe thunderstorms are not forecast tonight.
...01z Update...
Midlevel short-wave trough is advancing east across eastern CO/NM
early this evening. In response, 850mb flow is beginning to increase
across the southern Plains. Latest satellite/radar imagery support
this with weak convection now developing in response to low-level
warm advection across southern OK/AR. Later this evening, lightning
is expected to develop with this activity downstream across the
lower MS Valley, but forecast soundings suggest MUCAPE/lapse rates
will be a bit too weak to warrant any meaningful risk for severe
hail. As 850mb flow becomes more westerly late tonight, scattered
convection will spread/develop across the Gulf States, especially
along/north of the synoptic front which will be draped from central
MS/AL into SC.
..Darrow.. 02/21/2026
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TR4jWD
