[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 281245
SWODY1
SPC AC 281243

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0643 AM CST TUE FEB 28 2006

VALID 281300Z - 011200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
A MID LEVEL TROUGH OVER THE PAC COAST WILL MOVE INLAND TODAY AND
TONIGHT ACROSS THE GREAT BASIN AND NRN ROCKIES...AND GRADUALLY LOSE
AMPLITUDE WHILE ENCOUNTERING THE MEAN RIDGE OVER THE ROCKIES/HIGH
PLAINS.  STEEP LOW-MID LEVEL LAPSE RATES AND SUFFICIENT MOISTURE
WILL SUPPORT A THREAT FOR ISOLATED THUNDERSTORMS FROM CENTRAL AND
NRN CA NEWD ACROSS NV/ERN ORE/ID/NW UT TODAY INTO EARLY TONIGHT IN
ASSOCIATION WITH THE PRIMARY BAROCLINIC BAND AND THE MID LEVEL
THERMAL TROUGH.

ELSEWHERE...A MODIFYING CONTINENTAL POLAR AIR MASS IS RETURNING NWD
FROM THE WRN GULF BASIN IN RESPONSE TO PRESSURE FALLS IN THE LEE OF
THE ROCKIES.  HOWEVER...LOW-LEVEL MOISTURE SHOULD REMAIN MARGINAL
THIS PERIOD AND A RELATIVELY WARM ELEVATED MIXED LAYER WILL INHIBIT
DEEP CONVECTION ACROSS THE PLAINS AND MIDWEST THROUGH EARLY
WEDNESDAY.

..THOMPSON.. 02/28/2006