WATCHES: Severe Thunderstorm Watch Number 148

WWUS20 KWNS 081928
SEL8
SPC WW 081928
COZ000-KSZ000-OKZ000-TXZ000-090300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 148
NWS STORM PREDICTION CENTER NORMAN OK
125 PM MDT WED MAY 8 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
EASTERN COLORADO
WESTERN KANSAS
THE OKLAHOMA OKLAHOMA
NORTHWEST PARTS OF THE TEXAS PANHANDLE

* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 125 PM
UNTIL 900 PM MDT.

* PRIMARY THREATS INCLUDE...
NUMEROUS LARGE HAIL EVENTS LIKELY WITH A FEW VERY LARGE HAIL
EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES NORTHEAST OF
GOODLAND KANSAS TO 10 MILES EAST OF DALHART TEXAS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 NOW FORMING OVER THE HIGHER TERRAIN OF SE CO
EXPECTED TO MOVE/EXPAND ENE THROUGH THE AFTN...SUPPORTED BY LOW-LVL
ENE FLOW AND DIFFLUENT SW WINDS ALOFT. COOL MID-LVL TEMPS AND STEEP
LOW MID-LVL LAPSE RATES SUGGEST RISK FOR SVR HAIL AS STORMS ORGANIZE
INTO ONE OR TWO BROKEN BANDS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 24025.


...CORFIDI

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