[SWODY2] SWODY2

[Severe Weather Outlook - Day 2]

ACUS02 KWNS 131714
SWODY2
SPC AC 131713

DAY 2 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1113 AM CST WED DEC 13 2006

VALID 141200Z - 151200Z

...NO SVR TSTM AREAS FORECAST...

A STRONG BELT OF WESTERLIES PERSISTS SOUTH OF BAJA THROUGH THE
SOUTHEASTERN STATES.  AND...A SHORT WAVE IMPULSE EMANATING FROM THIS
STREAM CONTINUES TO DEAMPLIFY AS IT LIFTS INTO THE EASTERN CANADIAN
PROVINCES.  IN THE WAKE OF THIS FEATURE...LOW-LEVEL DRYING HAS
OCCURRED ACROSS ALL BUT THE GULF OF MEXICO/FLORIDA PENINSULA AND
SOUTH ATLANTIC COASTAL WATERS...WITH ANOTHER STRONG MID/UPPER JET
STREAK NOSING OUT OF THE MID LATITUDE PACIFIC THROUGH THE NORTHERN
TIER OF THE UNITED STATES.  MODELS INDICATE SOME AMPLIFICATION OF
SHORT WAVES EMBEDDED WITHIN THIS MORE NORTHERN STREAM WILL OCCUR
LATER TODAY THROUGH THURSDAY...BUT THE IMPULSES ARE PROGGED TO
REMAIN PROGRESSIVE...INCLUDING ONE ACROSS THE PACIFIC NORTHWEST
COAST BY LATE THURSDAY NIGHT.  MEANWHILE...A BROAD...BUT GENERALLY
WEAK UPPER TROUGH IN THE SOUTHERN STREAM IS FORECAST TO GRADUALLY
DEVELOP SOUTHEASTWARD ACROSS THE LOWER RIO GRANDE VALLEY/MEXICAN
PLATEAU.  

...FLORIDA...
MODELS SUGGEST CURRENT LOWER-MID TROPOSPHERIC RIDGE OVER THE FLORIDA
PENINSULA WILL WEAKEN LATER TODAY/TONIGHT.  AND...IN THE
SOUTHWESTERLY FLOW REGIME AHEAD OF LARGE-SCALE UPSTREAM TROUGH...A
WEAK IMPULSE IS PROGGED TO MIGRATE ACROSS THE PENINSULA THURSDAY/
THURSDAY NIGHT.  TIMING IS A BIT UNCERTAIN...BUT MOISTENING AND
WEAKENING INHIBITION WITH THIS FEATURE SHOULD CONTRIBUTE TO AN
INCREASINGLY FAVORABLE ENVIRONMENT FOR CONVECTION.  DESTABILIZATION
WILL PROBABLY NOT BECOME SUFFICIENT FOR PARTICULARLY VIGOROUS
CONVECTION...BUT AT LEAST WIDELY SCATTERED THUNDERSTORMS APPEAR
POSSIBLE DURING THE AFTERNOON AND EVENING HOURS.

...PACIFIC COAST...
MODERATE TO STRONG MOIST LOW-LEVEL ONSHORE FLOW AND MID-LEVEL
COOLING...IN WAKE OF SHORT WAVE TROUGH/ASSOCIATED COLD FRONT... WILL
PROBABLY PROVE FAVORABLE FOR SCATTERED THUNDERSTORMS TO THE WEST OF
THE CASCADES THURSDAY NIGHT.

..KERR.. 12/13/2006