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Tornado Watch 170
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WW0170 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood High Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
High Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL0
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 170
   NWS STORM PREDICTION CENTER NORMAN OK
   245 PM CDT SAT MAY 18 2013
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   
   * TORNADO WATCH FOR PORTIONS OF 
     NORTHEAST AND EAST CENTRAL COLORADO
     WESTERN AND CENTRAL KANSAS
     WESTERN NEBRASKA
   
   * EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 245 PM UNTIL
     1100 PM CDT.
   
   * PRIMARY THREATS INCLUDE...
     SEVERAL TORNADOES LIKELY
     NUMEROUS LARGE HAIL EVENTS LIKELY WITH A FEW VERY LARGE HAIL
       EVENTS TO 2.5 INCHES IN DIAMETER POSSIBLE
     SEVERAL DAMAGING WIND GUSTS TO 70 MPH LIKELY
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 100 STATUTE
   MILES EAST AND WEST OF A LINE FROM 5 MILES NORTH NORTHEAST OF
   CHADRON NEBRASKA TO 30 MILES SOUTHEAST OF MEDICINE LODGE KANSAS. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU0).
   
   PRECAUTIONARY/PREPAREDNESS ACTIONS...
   
   REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
   TORNADOES AND 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.
   
   &&
   
   DISCUSSION...INITIATION OF SEVERE STORMS IS EXPECTED DURING THE NEXT
   FEW HOURS...BOTH WITHIN MOIST UPSLOPE FLOW NEAR THE LEE SURFACE
   TROUGH ACROSS PARTS OF WESTERN NEBRASKA INTO NORTHEAST/EAST CENTRAL
   COLORADO...AND ALONG THE DRYLINE ACROSS PARTS OF WESTERN KANSAS.  AS
   ACTIVITY SPREADS NORTHWARD/NORTHEASTWARD WITHIN A VERY UNSTABLE
   ENVIRONMENT...VERY LARGE HAIL AND A FEW TORNADOES APPEAR POSSIBLE
   WITH STRONGEST STORMS INTO EARLY EVENING.  TORNADIC POTENTIAL MAY BE
   A BIT SLOWER TO DEVELOP AHEAD OF THE DRYLINE ACROSS KANSAS...THAN IN
   THE COOLER UPSLOPE REGIME TO THE NORTHWEST...BUT LOW-LEVEL JET
   STRENGTHENING AND INCREASING BOUNDARY LAYER RELATIVE HUMIDITY WILL
   SUPPORT A WINDOW OF OPPORTUNITY FOR ONE OR TWO STRONG TORNADOES
   ACROSS PARTS OF WESTERN INTO CENTRAL KANSAS NEAR/SHORTLY AFTER
   SUNSET.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   500. MEAN STORM MOTION VECTOR 25025.
   
   
   ...KERR
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Page last modified: May 19, 2013
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