Monday, February 14, 2011

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 141238
SWODY1
SPC AC 141236

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0636 AM CST MON FEB 14 2011

VALID 141300Z - 151200Z

...NO SVR TSTM AREAS FORECAST...

...PAC NW COAST THIS EVENING INTO TONIGHT...
AN INITIAL SHORTWAVE TROUGH WILL MOVE INLAND OVER NRN CA/ORE AND
WEAKEN THIS MORNING AS A LARGER UPSTREAM TROUGH OVER THE SE GULF OF
ALASKA APPROACHES THE WA/ORE COASTS THIS EVENING INTO TONIGHT.
SATELLITE IMAGERY REVEALS A SWATH OF LOW-TOPPED CONVECTION IN
ASSOCIATION WITH THE MIDLEVEL COLD CORE /-30 TO -34 C AT 500
MB/...AND THIS AREA OF STEEP LAPSE RATES/CONVECTION SHOULD REACH THE
COAST NEAR AND AFTER 00Z. THERE WOULD BE SOME CONCERN FOR DAMAGING
GUSTS ALONG THE IMMEDIATE COAST GIVEN 50-70 KT SLY/SWLY FLOW WITHIN
THE LOWEST 1 KM AGL...BUT MINIMAL INSTABILITY INLAND SHOULD TEMPER
THIS THREAT.

..THOMPSON.. 02/14/2011

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