[MCD] SWOMCD

Thu Apr 20 07:46:23 UTC 2006

ACUS11 KWNS 200744
SWOMCD
SPC MCD 200743 
TXZ000-200845-

MESOSCALE DISCUSSION 0575
NWS STORM PREDICTION CENTER NORMAN OK
0243 AM CDT THU APR 20 2006

AREAS AFFECTED...W CNTRL THROUGH PARTS OF WRN TX

CONCERNING...SEVERE THUNDERSTORM WATCH 214...

VALID 200743Z - 200845Z

SEVERE THUNDERSTORM WATCH 214 WILL PROBABLY NEED TO BE REPLACED BY
ANOTHER WW BY 08Z. STORMS ARE EXPECTED TO CONTINUE AND MAY DEVELOP
FARTHER W LATER THIS MORNING. PRIMARY THREATS WILL BE LARGE HAIL.

EARLY THIS MORNING...A SELY LOW LEVEL JET AROUND 30 KT WILL PERSIST
ACROSS S CNTRL THROUGH WRN TX. THIS WILL CONTINUE TO ADVECT HIGHER
THETA-E AIR NWWD WITH TIME BENEATH STEEP MID LEVEL LAPSE RATES.
STORMS ARE EXPECTED TO CONTINUE DEVELOPING WITHIN ZONE OF LIFT WHERE
THE LOW LEVEL JET IS INTERSECTING THE OUTFLOW BOUNDARY. WV IMAGERY
SHOWS A SHORTWAVE TROUGH MOVING EWD THROUGH NM. DEEP LAYER ASCENT
ASSOCIATED WITH THIS FEATURE AND LIFT ASSOCIATED WITH THE SELY LOW
LEVEL JET MAY CONTRIBUTE TO THUNDERSTORM DEVELOPMENT LATER THIS
MORNING AS THE ATMOSPHERE DESTABILIZES FARTHER W.

..DIAL.. 04/20/2006

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...FWD...SJT...MAF...

32349831 31950077 31760231 32440247 32920175 32860005
32769831 

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