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ACUS48 KWNS 180808

SWOD48

SPC AC 180806



Day 4-8 Convective Outlook  

NWS Storm Prediction Center Norman OK

0306 AM CDT Thu Apr 18 2024



Valid 211200Z - 261200Z



...DISCUSSION...

For much of the extended period, a deep upper low and expansive

trough will exist over eastern Canada, with moderate northwest flow

across the central and eastern CONUS with various embedded waves. A

cold front will be located roughly along the Gulf Coast on

Sunday/D4, with areas of rain and thunderstorms from eastern TX

toward the northern Gulf Coast and across northern FL. High pressure

will keep the quality low-level moisture primarily offshore, but

return flow into the southern Plains is forecast from around

Wednesday/D7 and beyond as a potential upper trough develops over

the western CONUS. As such, low severe potential is forecast for

most of the D4-8 period, with perhaps increasing potential by D8 or

beyond as the large northeastern trough dwindles.



..Jewell.. 04/18/2024