SWODY2
SPC AC 271621
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1021 AM CST TUE DEC 27 2011
VALID 281200Z - 291200Z
...NO TSTM AREAS FORECAST...
...SYNOPSIS...
A DRY WNWLY FLOW REGIME WILL EXIST ACROSS THE CONUS ON WED AS AN
UPPER TROUGH AXIS EXISTS THE E COAST AND HIGH PRESSURE SETTLES INTO
THE SERN STATES. AS A RESULT...VERY LITTLE INSTABILITY WILL EXIST.
AN EXCEPTION MAY BE ACROSS THE PACIFIC NW AND INTO WRN MT LATE IN
THE PERIOD...WHEN A LOW AMPLITUDE SHORTWAVE TROUGH AFFECTS THE AREA.
WITH 500 MB TEMPERATURES AROUND -28 C...VERY LITTLE MOISTURE WILL BE
NEEDED TO CREATE WEAK INSTABILITY. HOWEVER...MUCH OF THIS ACTIVITY
MAY SIMPLY BE CONVECTIVE RAIN AND SNOW SHOWERS WITH LITTLE IN THE
WAY OF LIGHTNING...ESPECIALLY GIVEN VERY STRONG SHEAR. WHILE AN
ISOLATED STRIKE CANNOT BE RULED OUT...WILL MAINTAIN LESS THAN 10
PERCENT OUTLOOK FOR THUNDERSTORMS.
..JEWELL.. 12/27/2011
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