488
ACUS02 KWNS 211724
SWODY2
SPC AC 211722
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1122 AM CST FRI NOV 21 2008
VALID 221200Z - 231200Z
..NO TSTM AREAS FORECAST
..SYNOPSIS
A MORE ZONAL UPPER FLOW PATTERN SHOULD EVOLVE ACROSS THE CONUS BY
DAY 2...AS THE NERN U.S. TROUGH/CLOSED LOW MOVES NWD INTO ERN
CANADA/MARITIMES. ONE SHORT WAVE TROUGH TRACKING FROM THE MID MO
VALLEY SHOULD REACH THE SRN APPALACHIANS/CAROLINAS BY 12Z SUNDAY...
WHILE THE NEXT UPSTREAM PACIFIC TROUGH MOVES INTO CENTRAL CANADA/NRN
HIGH PLAINS.
ANY LINGERING TSTM POTENTIAL ACROSS THE LOWER GREAT LAKES LATE DAY 1
SHOULD DIMINISH SATURDAY MORNING AS MID LEVELS WARM IN THE WAKE OF
THE DEPARTING NERN U.S. TROUGH. THIS THREAT IS EXPECTED TO BE TOO
MINIMAL TO INCLUDE A GENERAL TSTM AREA. ELSEWHERE...A LARGE SURFACE
ANTI-CYCLONE WILL SHIFT EWD AND COVER THE ERN HALF OF THE COUNTRY ON
SATURDAY. AN ACCOMPANYING RELATIVELY DRY AND COLD AIR MASS WILL
INHIBIT TSTM DEVELOPMENT ALONG THE TRACK OF THE MID MO TROUGH.
..PETERS.. 11/21/2008
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