WATCHES: Severe Thunderstorm Watch Number 79

WWUS20 KWNS 021941
SEL9
SPC WW 021941
TXZ000-030400-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 79
NWS STORM PREDICTION CENTER NORMAN OK
235 PM CDT TUE APR 2 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

SOUTHERN AND CENTRAL TEXAS

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 235 PM UNTIL
1100 PM CDT.

HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 185
STATUTE MILES EAST AND WEST OF A LINE FROM 75 MILES EAST
NORTHEAST OF SAN ANGELO TEXAS TO 5 MILES EAST OF DEL RIO TEXAS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU9).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

DISCUSSION...TSTMS EXPECTED TO INCREASE IN SEVERAL PARTS OF WW AREA
THROUGH THIS EVE: /1/ ALONG LEE TROUGH/DRY LINE NEAR THE DAVIS
MOUNTAINS AS MID-LVL COOLING ASCENT WITH NRN MEXICO/CHIHUAHUA UPR
IMPULSE AND SFC HEATING FURTHER DESTABILIZE REGION OF MOIST UPSLOPE
FLOW.../2/ ALONG AND N OF W-E COLD FRONT ADVANCING SLOWLY S THROUGH
THE SRN EDWARDS PLATEAU/HILL COUNTRY...AND /3/ ALONG WEAK NW/SE WARM
FRONT/DIFFERENTIAL HEATING BOUNDARY OVER THE ERN HILL COUNTRY INTO
THE WRN PORTIONS OF THE MIDDLE TX CSTL PLN.
MODERATE /25-35 KT/ WLY DEEP SHEAR AND SUSTAINED...SEASONABLY MOIST
LOW-LVL INFLOW SUGGEST GOOD POTENTIAL FOR A FEW SUPERCELLS WITH
LARGE HAIL/LOCALLY DMGG WIND. THIS ACTIVITY SHOULD MERGE INTO ONE OR
TWO SIZABLE MCSS BY MID EVE. A TORNADO OR TWO ALSO CANNOT BE RULED
OUT LATER THIS AFTN...BOTH IN THE BIG BEND REGION WHERE LOW-LVL
LAPSE RATES WILL BE MAXIMIZED UNDER PARTLY CLEAR SKIES...AND IN ERN
QUARTER OF WW...INVOF DIFFUSE WARM FRONT. ENVIRONMENT AND STORM
CHARACTER IN THESE AREAS WILL BE MONITORED FOR POSSIBLE WATCH
UPGRADES.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 29025.


...CORFIDI

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.