WATCHES: Severe Thunderstorm Watch Number 551

WWUS20 KWNS 051946
SEL1
SPC WW 051946
COZ000-NMZ000-060200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 551
NWS STORM PREDICTION CENTER NORMAN OK
145 PM MDT SUN JUL 5 2009

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

SOUTHEAST COLORADO
NORTHEAST NEW MEXICO

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 145 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 55
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES WEST
NORTHWEST OF LIMON COLORADO TO 60 MILES EAST SOUTHEAST OF LAS
VEGAS NEW MEXICO. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).

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.

OTHER WATCH INFORMATION...CONTINUE...WW 550...

DISCUSSION...NUMEROUS STORMS DEVELOPING ACROSS THE HIGHER TERRAIN
AND ADJACENT PLAINS WILL TAP RELATIVELY RICH BOUNDARY LAYER MOISTURE
AND WARMING AIRMASS TO RESULT IN STOUT STORM UPDRAFTS WITH HEAVY
RAIN AND HAIL THIS AFTERNOON. BELT OF SLIGHTLY STRONGER WLY
MID-LEVEL FLOW /AROUND 30 KT/ COUPLED WITH WEAK LOW LEVEL SELY FLOW
WILL RESULT IN ADEQUATE SR SHEAR FOR A FEW PERSISTENT ROTATING
STORMS CAPABLE OF LARGE HAIL PRODUCTION. AS STRONGER CELLS
MOVE/DEVELOPS OVER WARMER BOUNDARY LAYER EAST OF THE MOUNTAINS...A
COUPLE OF DAMAGING WIND EVENTS ALSO APPEAR POSSIBLE.

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 32015.

...CARBIN

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