[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 230039
SWODY1
SPC AC 230037

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0637 PM CST WED NOV 22 2006

VALID 230100Z - 231200Z

...NO SVR TSTM AREAS FORECAST...

...MID ATLANTIC COASTAL AREAS...
IN RESPONSE TO THE PROGRESSION OF AN IMPULSE ROTATING AROUND ITS
EASTERN/NORTHERN PERIPHERY...A MID-LEVEL CLOSED LOW HAS REDEVELOPED
NORTHEASTWARD INTO AREAS OFF THE CAROLINA COAST...TO THE SOUTH/EAST
OF WILMINGTON. ASSOCIATED MID-LEVEL COOLING HAS CONTRIBUTED TO
DESTABILIZATION NEAR WAVE ALONG STALLED LOW-LEVEL BAROCLINIC ZONE
...SUPPORTING ONGOING AREA OF SCATTERED THUNDERSTORMS. THIS
ACTIVITY MAY PERSIST INTO THE OVERNIGHT HOURS...AND LIKELY WILL BE
SLOW TO SHIFT NORTHEAST OF THE NORTH CAROLINA/SOUTHEAST VIRGINIA
COAST...AS UPPER SYSTEM REMAINS CUT-OFF FROM THE STRONGER
WESTERLIES.

...PACIFIC NORTHWEST...
SHORT WAVE TROUGH EMBEDDED WITHIN BELT OF STRONGER POLAR WESTERLIES
IS JUST NOW BEGINNING TO SHIFT INTO COASTAL AREAS...AND IS PROGGED
EAST OF THE CASCADES BY 23/12Z.  MID-LEVEL COLD POOL ASSOCIATED WITH
THIS FEATURE WILL OVERSPREAD MUCH OF THE NORTHWESTERN STATES BY
DAYBREAK...LIKELY CONTRIBUTING TO SOME DESTABILIZATION AND
CONVECTIVE POTENTIAL.  HOWEVER...RISK FOR THUNDERSTORMS SEEMS LIKELY
TO MOSTLY BE CONFINED TO COASTAL AREAS AND THE WESTERN SLOPES OF THE
CASCADES...AS WEAK TO MODERATE MOIST ONSHORE FLOW DEVELOPS LATER
THIS EVENING/OVERNIGHT.

..KERR.. 11/23/2006