Alert archive / Nebraska / Tornado Watches in 2000

Tornado Watch 772

October 31, 200016 counties in Nebraska

The Storm Prediction Center issued this tornado watch at Oct 31, 2000, 3:00 PM MST for 16 counties in Nebraska. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Oct 31, 2000, 3:00 PM MST (22:00 UTC)
Expired: Oct 31, 2000, 8:00 PM MST
In force: 5 hr
Issued by: the Storm Prediction Center

Counties Chase County, NE, Custer County, NE, Dawson County, NE, Dundy County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, Perkins County, NE, Phelps County, NE, Red Willow County, NE

Warnings issued inside it

11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Oct 31, 3:38 PM MST	Tornado Warning	GLD	Red Willow	52 min
Oct 31, 3:56 PM MST	Severe Thunderstorm Warning	LBF	Hayes	49 min
Oct 31, 4:07 PM MST	Severe Thunderstorm Warning	LBF	Frontier	38 min
Oct 31, 4:19 PM MST	Tornado Warning	LBF	Frontier	41 min
Oct 31, 4:39 PM MST	Severe Thunderstorm Warning	GLD	Hitchcock	36 min
Oct 31, 4:40 PM MST	Tornado Warning	GID	Dawson, Gosper	50 min
Oct 31, 4:44 PM MST	Severe Thunderstorm Warning	LBF	Hayes	46 min
Oct 31, 5:25 PM MST	Tornado Warning	LBF	Custer	50 min
Oct 31, 6:00 PM MST	Severe Thunderstorm Warning	GLD	Hitchcock, Red Willow	45 min
Oct 31, 6:04 PM MST	Tornado Warning	LBF	Custer	41 min
Oct 31, 6:45 PM MST	Tornado Warning	LBF	Custer, Loup	45 min

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.0 hours before the alert went out and 43 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1406 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 166 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

013 
WWUS9 KMKC 312125
SEL2  

SEL2  
MKC WW 312119
NEZ000-010300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 772
STORM PREDICTION CENTER NORMAN OK
319 PM CST TUE OCT 31 2000

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

   SOUTHWESTERN AND SOUTH CENTRAL NEBRASKA                       
   

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 400 PM UNTIL 900
PM CST.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES EITHER SIDE OF
A LINE FROM 30 MILES WEST NORTHWEST OF IMPERIAL NEBRASKA TO 50
MILES SOUTH SOUTHEAST OF BROKEN BOW NEBRASKA.

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 771...

DISCUSSION...SUPERCELLS..WITH RISK OF TORNADOES..ARE EXPECTED TO
NNEWD INTO FRON NWRN KS INTO SWRN AND CENTRAL NEB WITHIN THE NEXT
FEW HOURS.

AVIATION...TORNADOES AND 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 21035.


...JOHNS

413,1020 413,0991 395,0991 394,1020

Nearby

Tornado Watches in Nebraska, 2000 Every tornado watch in 2000

Sources

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.