SWODY3
SPC AC 310557
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1257 AM CDT WED OCT 31 2007
VALID 021200Z - 031200Z
..NO SVR TSTM AREAS FORECAST...
..SYNOPSIS...
MODELS INDICATE THAT A STRONG NORTHERN PACIFIC UPPER JET STREAK WILL
NOSE INLAND AROUND THE NORTHERN/EASTERN PERIPHERY OF AN UPPER
RIDGE...WHICH IS PROGGED TO BUILD AS IT SHIFTS INTO PACIFIC
NORTHWEST/BRITISH COLUMBIA COASTAL AREAS DURING THIS FORECAST
PERIOD. AND...THIS IS EXPECTED TO INITIATE A GRADUAL CONSOLIDATION
OF DOWNSTREAM SPLIT POLAR JETS INTO A BROAD TROUGH EAST OF THE
ROCKIES INTO THE WESTERN ATLANTIC. AS THIS OCCURS...NOEL IS
FORECAST TO CONTINUE A RAPID NORTHEASTWARD TREK ALONG A FRONTAL ZONE
WELL EAST OF MID/SOUTH ATLANTIC COASTAL AREAS.
THE EVOLVING UPPER PATTERN IS EXPECTED TO MAINTAIN SURFACE RIDGING
ACROSS MUCH OF THE NATION. ONE HIGH CENTER MAY RETREAT NORTHEAST OF
NEW ENGLAND...IN THE WAKE OF A MID-LEVEL IMPULSE LIFTING THROUGH THE
CANADIAN MARITIMES. BUT...ANOTHER WEAKER HIGH CENTER IS PROGGED TO
BUILD SOUTHEASTWARD THROUGH THE NORTH CENTRAL PLAINS ...AS YET
ANOTHER HIGH BUILDS OVER THE NORTHERN INTERMOUNTAIN REGION.
NEEDLESS TO SAY...CONVECTIVE POTENTIAL IS EXPECTED TO REMAIN LOW
THROUGH SATURDAY/SATURDAY NIGHT.
.KERR.. 10/31/2007
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