000
ACUS03 KWNS 270702
SWODY3
SPC AC 270701

Day 3 Convective Outlook  
NWS Storm Prediction Center Norman OK
0201 AM CDT Mon Sep 27 2021

Valid 291200Z - 301200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not expected on Wednesday.

...Synopsis...

A closed upper low within a larger-scale trough will migrate
southward across New England on Wednesday. Meanwhile, an upper ridge
will become centered over the MS Valley while a broad upper trough
overspreads the western half of the CONUS. Deep-layer southerly flow
will result in northward transport of Gulf moisture across the
Plains. A surface cold front is forecast to shift east across the
northern/central Plains through the period. Quality of
boundary-layer moisture will decrease with northward extent, but a
narrow corridor of surface dewpoints in the low 60s should
materialize as far north as eastern NE/SD ahead of the front. This
will support weak destabilization through peak heating, and isolated
strong storms could develop. However, deep southerly flow parallel
to the surface boundary may tend to favor training precipitation
that becomes undercut by the front. As a result, overall severe
potential appears too low to include probabilities at this time.

..Leitman.. 09/27/2021

$$