SWODY2
SPC AC 030503
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1203 AM CDT MON OCT 03 2011
VALID 041200Z - 051200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
THE REMNANTS OF A SPLITTING WRN UPPER-LEVEL TROUGH WILL CONTINUE
INLAND THROUGH EARLY WED...THE SRN PORTION EWD TOWARDS THE FOUR
CORNERS AND THE NORTHERN PORTION NEWD ACROSS THE CANADIAN ROCKIES.
IN THE WAKE OF THESE IMPULSES...A LARGE-SCALE TROUGH WILL AMPLIFY
OFF THE PACIFIC COAST. A DOWNSTREAM RIDGE WILL REMAIN ANCHORED ALONG
THE MS VALLEY. A CLOSED LOW ALONG THE NORTHEAST COAST WILL
ACCELERATE NEWD AS A SHORT WAVE TROUGH MOVES FROM HUDSON BAY ACROSS
QUEBEC.
...INTERMOUNTAIN WEST...ROCKIES...
ISOLATED TO SCATTERED TSTMS WILL DEVELOP TUE AFTERNOON AS THE
POLEWARD ADVECTION OF SUBTROPICAL MOISTURE CONTINUES IN ADVANCE OF
THE SHORT WAVE TROUGHS APPROACHING THE FOUR CORNERS AND CANADIAN
ROCKIES. ALTHOUGH MODERATE TO STRONG MID-LEVEL S/SWLYS WILL BE
PREVALENT FROM THE SOUTHWEST TO THE NRN ROCKIES...DESTABILIZATION
APPEARS TOO WEAK ATTM TO WARRANT AN APPRECIABLE SEVERE RISK.
...NEW ENGLAND COAST...
A FEW ELEVATED TSTMS MAY DEVELOP EARLY IN THE PERIOD PRIOR TO CLOSED
LOW ACCELERATING NEWD FROM THE SRN NEW ENGLAND COAST.
...ORE/NRN CA COAST...
POTENTIAL FOR A FEW LIGHTNING STRIKES WILL EXIST EARLY WED AS COLD
MID-LEVEL TEMPERATURES /AROUND -25 DEG C AT 500 MB/ REACH THE
PACIFIC NW COAST AND YIELDS A MARGINALLY UNSTABLE AIR MASS.
..GRAMS/KERR.. 10/03/2011
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