ACUS02 KWNS 190528

SWODY2

SPC AC 190526



Day 2 Convective Outlook  

NWS Storm Prediction Center Norman OK

1226 AM CDT Thu Mar 19 2026



Valid 201200Z - 211200Z



...NO SEVERE THUNDERSTORM AREAS FORECAST...



...SUMMARY...

A low chance of a few thunderstorms may develop on Friday near the

Upper Ohio Valley and vicinity, and also near the southeast Florida

coast.



...Synopsis...

An upper ridge will remain over the Southwest on Friday, with strong

northwest flow aloft along the Canadian border. A low-amplitude

upper wave will move from northern MN across the upper Great Lakes

late in the day and overnight, with a weak surface low moving from

the Great Lakes into the Northeast. A cold front will extend from

southwest Ontario into MO by 18Z, with southwesterly surface winds

helping to bring a plume of low to mid 50s F dewpoints as far north

as OH and western PA.



Marginal low-level moistening and daytime heating will lead to weak

instability, which may support isolated thunderstorms developing

within the warm advection zone into the Upper OH Valley and

vicinity. Severe storms are not forecast due to the weak

instability, however, veering winds with height and good deep-layer

shear will support cellular activity, perhaps with very

small/non-severe hail.



Elsewhere, the tail-end of the western Atlantic trough will maintain

cool temperatures aloft over FL. This will support afternoon

destabilization, with isolated activity near the eastern shores

where localized surface convergence may develop.



..Jewell.. 03/19/2026



$$