Tornado Watch 791

Issued

Jul 21, 2003, 3:50 PM MDT (21:50 UTC)

Expired

Jul 21, 2003, 9:00 PM MDT

In force

5 hr

Issued by

the Storm Prediction Center

The North Platte radar (KLNX), 128 km from the middle of the area, began a volume at 21:50 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

• Mesoscale Discussion 1942Jul 21, 1:24 PM MDT
• Mesoscale Discussion 1948Jul 21, 6:53 PM MDT
• Mesoscale Discussion 1949Jul 21, 7:21 PM MDT

000 
WWUS20 KWNS 212151
SEL1  
SPC WW 212150
COZ000-KSZ000-NEZ000-220300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 791 
NWS STORM PREDICTION CENTER NORMAN OK 
350 PM MDT MON JUL 21 2003

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

       EASTERN COLORADO
       NORTHWEST KANSAS
       SOUTHWEST NEBRASKA

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 350 PM UNTIL 900
PM MDT.

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

THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES EAST AND WEST
OF A LINE FROM 5 MILES NORTHWEST OF MULLEN NEBRASKA TO 45 MILES
SOUTHEAST OF GOODLAND KANSAS.

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.


OTHER WATCH INFORMATION...CONTINUE...WW 786...WW 787...WW 788...WW
789...WW 790...


DISCUSSION...SCATTERED THUNDERSTORMS ARE EXPECTED TO INTENSIFY
RAPIDLY ACROSS SOUTHWEST NEB AND NORTHWEST KS DURING THE NEXT FEW
HOURS. STRONG DYNAMIC FORCING...MODERATE INSTABILITY...AND
FAVORABLE VERTICAL SHEAR PROFILES WILL SUPPORT A RISK OF SUPERCELL
THUNDERSTORMS CAPABLE OF LARGE HAIL AND DAMAGING WINDS.  BACKED LOW
LEVEL WINDS AND APPROACHING UPPER SYSTEM ALSO SUGGEST THE THREAT OF
ISOLATED TORNADOES.

AVIATION...TORNADOES AND 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 500.
MEAN STORM MOTION VECTOR 30025.


...HART

420,0994 385,0994 385,1022 420,1023

Tornado Watches in Nebraska, 2003Tornado Watches in Kansas, 2003Tornado Watches in Colorado, 2003Every tornado watch in 2003

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.