[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 281220
SWODY1
SPC AC 281218

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0618 AM CST TUE NOV 28 2006

VALID 281300Z - 291200Z

...NO SVR TSTM AREAS FORECAST...

...CENTRAL STATES...
AN EXPANSIVE UPPER TROUGH IS IN PLACE THIS MORNING OVER MOST OF THE
UNITED STATES...WITH THE EXCEPTION OF THE SOUTHEAST STATES.  SEVERAL
SMALLER FEATURES ARE ROTATING THROUGH THE TROUGH...RESULTING IN
POCKETS OF PRECIPITATION THROUGHOUT THE WESTERN AND CENTRAL UNITED
STATES.  THE STRONGEST SHORTWAVE TROUGH IS NOW MOVING ACROSS WESTERN
OK.  STRONG FORCING FOR LARGE SCALE ASCENT IS OCCURRING AHEAD OF
TROUGH ACROSS PARTS OF OK/KS/MO/NEB/IA/MN...WHERE SCATTERED
THUNDERSTORMS ARE NOTED.  THIS ACTIVITY WILL MOVE EASTWARD INTO
PARTS OF WI/IL/AR AND WEAKEN THROUGH THE DAY AS IT ENCOUNTERS MORE
STABLE AIR MASS.  SMALL HAIL WILL BE POSSIBLE IN STRONGER STORMS
THIS MORNING...BUT ORGANIZED SEVERE ACTIVITY IS NOT ANTICIPATED.

...CO/WY...
ELSEWHERE...SHOWERS AND ISOLATED LIGHTNING STRIKES WILL BE POSSIBLE
OVER THE HIGHER TERRAIN OF CO AND SOUTHERN WY THIS AFTERNOON AS
DIURNAL HEATING...COLD TEMPERATURES ALOFT...AND SERIES OF SHORTWAVE
TROUGHS AFFECT THE AREA.  OVERALL THREAT OF DEEP CONVECTION APPEARS
TOO MARGINAL TO OUTLOOK AT THIS TIME.

..HART/GRAMS.. 11/28/2006