000
ACUS02 KWNS 061708
SWODY2
SPC AC 061706

Day 2 Convective Outlook  
NWS Storm Prediction Center Norman OK
1106 AM CST Mon Dec 06 2021

Valid 071200Z - 081200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not forecast across the contiguous United
States on Tuesday.

...Synopsis...
Broadly cyclonic flow aloft will be in place across much of the
CONUS early Tuesday morning, with several shortwave troughs
progressing through both the northern and southern streams. Some
trend towards confluence of the separate streams is expected to
occur across the eastern CONUS late in the period. Notable
separation in streams will remain across the western CONUS, as an
upper low develops off the southern CA coast and a fast-moving
shortwave trough moves across the Pacific Northwest/British
Columbia.

At the surface, high pressure will cover much of the eastern CONUS
by early Tuesday morning. This post-frontal high pressure will
result in predominantly stable conditions throughout most of the
period. The only exception will be within the broad warm-air
advection that occurs ahead of shortwave trough moving across the TN
Valley late Tuesday night/early Wednesday morning. As a shortwave
progress eastward, showers and a few isolated thunderstorms may
develop across the Southeast. Most of this activity will be too
shallow to produce lightning, but a few embedded lightning flashes
are possible with any deeper cores.

..Mosier.. 12/06/2021

$$