SWOMCD
SPC MCD 190321
ALZ000-FLZ000-MSZ000-LAZ000-190415-
MESOSCALE DISCUSSION 0665
NWS STORM PREDICTION CENTER NORMAN OK
1021 PM CDT FRI APR 18 2008
AREAS AFFECTED...SRN AL/WRN FL PANHANDLE
CONCERNING...TORNADO WATCH 208...
VALID 190321Z - 190415Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 208 CONTINUES.
SEVERE THREAT WILL CONTINUE TO BE MONITORED FOR ACTIVITY AND
ATTENDANT THREATS SPREADING E OF WW 208.
STRONG SLY LLJ /45-50 KT/ CONTINUES TO DEVELOP EWD INTO SRN AL/WRN
FL PANHANDLE REGION AND WILL MAINTAIN NWD MOISTURE ADVECTION AND
SUBSEQUENT DESTABILIZATION ACROSS...AND ALSO DOWNSTREAM OF...WW 208.
THE STRONG LLJ COMBINED WITH VEERING WIND PROFILES WITH HEIGHT AS
INDICATED BY AREA WSR-88D VWPS ACROSS SRN AL/WRN FL PANHANDLE ARE
EXPECTED TO SUPPORT A CONTINUED TORNADO THREAT...WITH EFFECTIVE SRH
VALUES CONTINUING TO INCREASE TO GREATER THAN 300 M2/S2.
MOSAIC RADAR IMAGERY INDICATED SUPERCELL...NOW MOVING INTO SRN
MONROE COUNTY AL...HAS BEEN A LONG-LIVED CYCLIC SUPERCELL
MAINTAINING STORM ROTATION FOR MUCH OF ITS LIFETIME FROM SRN MS.
CURRENT TRENDS SUGGEST THIS STORM WILL TRACK EWD INTO COVINGTON/SRN
BUTLER COUNTIES AL BY 05Z WHERE AIR MASS CONTINUES TO DESTABILIZE.
SRN EXTENT OF DPVA WITH LOWER TN VALLEY/CENTRAL GULF COAST STATES
UPPER TROUGH EXPECTED TO MAINTAIN TSTM ACTIVITY EWD ACROSS SRN AL
AND POTENTIALLY WRN FL PANHANDLE.
..PETERS.. 04/19/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...TAE...BMX...MOB...LIX...
29888912 31078867 31848825 32178724 31978573 31538562
30558573 29898600 29548665
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@PO.UIUC.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.
No comments:
Post a Comment