[SWODY2] SWODY2

[Severe Weather Outlook - Day 2]

ACUS02 KWNS 201716
SWODY2
SPC AC 201715

DAY 2 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1215 PM CDT THU APR 20 2006

VALID 211200Z - 221200Z

...THERE IS A SLGT RISK OF SVR TSTMS FROM THE WRN GULF STATES INTO
THE SRN APPALACHIANS...

...WRN GULF COAST TO SRN APPALACHIANS...

SRN ROCKIES SHORTWAVE TROUGH WILL SHIFT EAST ACROSS TX MAINTAINING
SIGNIFICANT SEPARATION WITH UPPER LOW OVER THE GREAT LAKES REGION. 
THIS FEATURE WILL UNDOUBTEDLY AID UPWARD ASCENT ALONG SW-NE ORIENTED
FRONTAL ZONE FROM THE UPPER TX COAST INTO THE SRN APPALACHIANS.

EARLY IN THE PERIOD...IT APPEARS ONE OR MORE CONCENTRATED CLUSTERS
OF THUNDERSTORMS WILL BE ONGOING FROM LATE DAY1 ACTIVITY IMMEDIATELY
AHEAD OF SHORTWAVE TROUGH FROM THE MIDDLE TX COAST INTO THE ARKLATEX
REGION.  BOUNDARY LAYER HEATING AHEAD OF CONVECTIVE OUTFLOW/SFC
FRONT SHOULD ENHANCE INSTABILITY FOR RENEWED THUNDERSTORM
DEVELOPMENT/INTENSIFICATION DURING THE MID DAY HOURS.  STORM MODE
SHOULD BE MODULATED SIGNIFICANTLY BY CONVECTIVE OUTFLOW AND MODEST
SHEAR...SEEMINGLY SUPPORTIVE OF LINE SEGMENT-TYPE BANDS.  AS A
RESULT...CONSIDERABLE AMOUNT OF CONVECTION SHOULD SPREAD ACROSS
PORTIONS OF THE WRN GULF STATES INTO ERN TN DURING THE AFTERNOON
HOURS WITH DAMAGING WINDS AND LARGE HAIL THE MOST LIKELY SEVERE
THREATS.

..DARROW.. 04/20/2006