SWODY3
SPC AC 170708
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0208 AM CDT SAT APR 17 2010
VALID 191200Z - 201200Z
...SYNOPSIS...
RELATIVELY WEAK MID-LEVEL FLOW FIELD IS AGAIN PROGGED ACROSS THE
MAJORITY OF THE U.S. DAY THREE...THOUGH A SIGNIFICANT TROUGH IS
PROGGED TO APPROACH THE W COAST.
ONE SMALLER-SCALE FEATURE -- NOW APPROACHING THE PAC NW -- IS
EXPECTED TO WEAKEN AS IT MOVES INTO THE LONG-WAVE RIDGE IN PLACE
OVER THE ROCKIES. MODELS HINT THAT AS THIS WEAKENING FEATURE
REACHES THE NRN HIGH PLAINS -- IT MAY BRING SLIGHTLY-ENHANCED WNWLY
FLOW ALOFT...ALONG WITH WEAK LEE TROUGHING. SHOULD THIS LEE
TROUGHING MATERIALIZE...SELY RESPONSE IN THE LOW-LEVEL FLOW FIELD
BENEATH THE MODEST NWLYS COULD YIELD VERTICAL SHEAR PROFILES
SUFFICIENT FOR SOME STORM ORGANIZATION. THOUGH INSTABILITY ALONG
THE HIGH PLAINS SHOULD REMAIN QUITE LIMITED...SHEAR/CAPE COMBINATION
COULD SUPPORT A STRONGER STORM OR TWO. ATTM HOWEVER...CONFIDENCE IN
THE AFOREMENTIONED SCENARIO REMAINS TOO LOW TO WARRANT THE
INTRODUCTION OF EVEN LOW SEVERE PROBABILITIES.
ELSEWHERE...WHILE PRIMARILY DIURNAL CONVECTION WILL OCCUR ACROSS
PORTIONS OF THE ROCKIES AND PERHAPS ACROSS PARTS OF FL...LITTLE IF
ANY SEVERE THREAT IS ANTICIPATED.
..GOSS.. 04/17/2010
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