[SWODY2] SWODY2

[Severe Weather Outlook - Day 2]

ACUS02 KWNS 200632
SWODY2
SPC AC 200630

DAY 2 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1230 AM CST SAT JAN 20 2007

VALID 211200Z - 221200Z

...NO SVR TSTM AREAS FORECAST...

...LWR MS VLY...
UPPER LOW CURRENTLY OVER SRN AZ/NRN SONORA WILL EJECT ENEWD ACROSS
THE PLAINS LATE TODAY AND INTO THE GREAT LAKES AS AN OPEN WAVE BY
LATE SUNDAY.  ATTENDANT FRONT WILL MOVE SEWD AND BE SITUATED FROM
THE SRN APPALACHIANS TO THE WRN GULF COAST BY 12Z MON.

MEANWHILE...A PIECE OF THE DISTURBANCE NOW OFF THE BC/WA COASTS WILL
AMPLIFY AND DIG SWD THROUGH THE GRT BASIN ON SUNDAY.  TIGHTENING
HEIGHT GRADIENT DOWNSTREAM FROM THIS SYSTEM WILL CONTRIBUTE TO
ACCELERATED FLOW WITHIN THE SUB-TROPICAL CONVEYOR.  THIS JETSTREAM
WILL BE IN PLACE FROM THE WRN GULF BASIN INTO THE DEEP S ATOP THE
AFOREMENTIONED FRONT.  THOUGH LAPSE RATES ARE GENERALLY EXPECTED TO 
BE MOIST ADIABATIC OR LESS...THE INCREASING FLOW ALOFT MAY PROVIDE
SUFFICIENT FORCING FOR SOME PARCELS TO REACH INTO THE ICING LAYER
FOR CHARGE SEPARATION ACROSS THE LWR MS VLY SUNDAY AFTN/NIGHT.  NO
ORGANIZED SVR TSTMS ARE ANTICIPATED OWING TO THE POOR LAPSE RATES
AND MARGINAL GULF MSTR RETURN.

..RACY.. 01/20/2007