ACUS02 KWNS 180557
SWODY2
SPC AC 180555
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1155 PM CST SAT NOV 17 2012
VALID 191200Z - 201200Z
...NO TSTM AREAS FORECAST...
...SYNOPSIS...
DEEP-LAYER CYCLONIC FLOW REGIME WILL PERSIST ACROSS THE PACIFIC
NORTHWEST THROUGH THE BEGINNING OF WEEK. A NUMBER OF STRONG SHORT
WAVE IMPULSES WILL SPREAD INLAND FROM THE NORTHEAST PACIFIC BEFORE
RACING NEWD ACROSS THE ROCKIES AND THEN TO SRN CANADA AND THE NRN
PLAINS/UPPER MS VALLEY AREAS. IN THE WAKE OF A LEADING LOW AMPLITUDE
SHORT WAVE TROUGH MOVING EAST ACROSS THE UPPER MS VALLEY AND
ADJACENT AREAS OF CANADA ON MONDAY...A TRANSIENT UPPER RIDGE IS
FORECAST TO BUILD FROM THE SOUTHWEST TO THE CNTRL STATES. TROUGHING
WILL GENERALLY PERSIST ACROSS THE EAST WITH THE MOST PROMINENT
IMPULSE BEING A SLOW MOVING LOW OFF THE SOUTHEAST COAST. THIS AREA
OF DISTURBED WEATHER IS FORECAST TO MOVE GRADUALLY EAST THROUGH THE
PERIOD. INSTABILITY IS EXPECTED TO REMAIN TOO WEAK TO SUPPORT MUCH
IN THE WAY OF TSTM ACTIVITY.
..CARBIN.. 11/18/2012
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