[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 281630
SWODY1
SPC AC 281629

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1029 AM CST TUE FEB 28 2006

VALID 281630Z - 011200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
UPR TROUGH OFF THE NRN CA CST APPEARS TO HAVE REACHED MAXIMUM
INTENSITY.  ASSOCIATED WELL-DEFINED VORT CENTER NOW ABOUT 145 WSW OF
KEKA IS MOVING APPROX 270/15 AND WILL CROSS NRN CA LATER TODAY/
TONIGHT AS SYSTEM DEAMPLIFIES. THE DISTURBANCE IS PRECEDED BY A
LOW-LEVEL CONFLUENCE BAND/SHALLOW COLD FRONT WITH CONVECTION/STORMS
THAT ATTM EXTEND ALONG THE CA CST N OF KSFO.

...NRN CA...
CONVECTIVE BAND WITH EMBEDDED THUNDER SHOULD CONTINUE E INTO THE NRN
SACRAMENTO VLY BY EARLY/MID AFTERNOON. FORCING FOR ASCENT AHEAD OF
VORT...COLD MID LEVEL TEMPERATURES /MINUS 28-30 C AT 500 MB/...
OROGRAPHIC UPLIFT AND DIURNAL HEATING ALL SUGGEST POTENTIAL FOR SOME
HAIL.  ADDITIONAL THUNDER MAY ALSO AFFECT THE NRN CA CST AND CSTL
RANGE AS VORT MOVES ASHORE LATER IN THE DAY.

...ERN NV/UT/SRN ID...
FARTHER E...MAIN DEEP LAYER COLD FRONT ASSOCIATED WITH TROUGH HAS
MOVED INTO WRN/NRN NV/SE ORE.  THE FRONT SHOULD CONTINUE E INTO UT
AND THE SNAKE RIVER VLY OF ID LATER TODAY.  SCATTERED EMBEDDED
THUNDER MAY ACCOMPANY THE BOUNDARY THROUGH TONIGHT GIVEN STRONG
FORCING FOR ASCENT/UPR DIFLUENCE...AND PRESENCE OF WEAK ELEVATED
INSTABILITY.  STRONG GRADIENT AND ISALLOBARIC WIND FIELDS MAY YIELD
A SEVERE WIND GUST OR TWO MAY COINCIDENTAL WITH CONVECTION GIVEN
STRENGTH OF UNIDIRECTIONAL WIND FIELD.

..CORFIDI.. 02/28/2006