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Severe Thunderstorm Watch 553
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WW0553 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 553
   NWS STORM PREDICTION CENTER NORMAN OK
   120 PM MDT MON JUL 6 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          THE SOUTHEAST QUARTER OF COLORADO
          NORTH CENTRAL AND NORTHEASTERN NEW MEXICO
   
   EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 120 PM UNTIL 800
   PM MDT.
   
   HAIL TO 2 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 90
   STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES NORTHEAST OF
   COLORADO SPRINGS COLORADO TO 75 MILES SOUTHWEST OF TUCUMCARI NEW
   MEXICO.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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...SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP ACROSS
   THE CENTRAL AND SRN ROCKIES...AND HAVE BEGUN TO SPREAD SEWD INTO THE
   HIGH PLAINS...WHERE DEWPOINTS NEAR 60 AND DAYTIME HEATING HAVE
   COMBINED TO PUSH MIXED-LAYER CAPE INTO THE 500 TO 1000 J/KG RANGE.
   WHILE MID-LEVEL FLOW REMAINS SOMEWHAT WEAK FROM THE NW...LOW-LEVEL
   SELYS BENEATH THE MID-LEVEL NWLY FLOW IS RESULTING IN SHEAR
   SUFFICIENT FOR ORGANIZED/WEAKLY-ROTATING STORMS.  ALONG WITH LARGE
   HAIL...LOCALLY STRONG/GUSTY WINDS WILL BE POSSIBLE AS CONVECTION
   ORGANIZES/SPREADS SEWD INTO THE HIGH PLAINS THROUGH THE AFTERNOON.
   
   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 450. MEAN STORM
   MOTION VECTOR 30025.
   
   
   ...GOSS
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Page last modified: July 06, 2009
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