Alert archive / Nebraska / Tornado Warnings in 1991

Tornado Warning 22, NWS North Platte, NE

May 31, 1991Madison County, Stanton County, Nebraska

NWS North Platte, NE issued this tornado warning at May 31, 1991, 12:52 AM CDT for Madison County, Stanton County, Nebraska. It was in force for 23 min.

The area

The counties it named.

The facts

Issued
May 31, 1991, 12:52 AM CDT (05:52 UTC)
Expired
May 31, 1991, 1:15 AM CDT
In force
23 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Madison County, NE, Stanton County, NE

The nearest sounding before it

Omaha, NE (KOVN), launched 00:00Z, 5.9 hours before the alert went out and 108 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-pSkew-T log-p diagram, Omaha, NE at 00:00Z on 1991-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 1991-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
NaN m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOFK 310552
TOROFK
NEC119-167-310630-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE NORFOLK NE
1252 AM CDT FRI MAY 31 1991

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 130 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTHEAST PART OF NEBRASKA
      EASTERN MADISON...STANTON

AT 1245 AM CDT NORFOLK RADAR STILL INDICATED POSSIBLE TORNADOES
IN EASTERN MADISON COUNTY NEAR NORFOLK AND MADISON.  THE PARENT
THUNDERSTORM WAS MOVING NORTHEASTWAR AT 15 MPH.

THE TORNADO WARNING INCLUDES THE TOWNS OF MADISON...NORFOLK AND
STANTON.

TAKE SHELTER IMMEDIATELY...GET TO A BASEMENT IF POSSIBLE.  OTHERWISE
GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR.  ABANDON CARS AND
MOBILE HOMES...TAKE SHELTER IN A REINFORCED BUILDING.

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 30, 8:57 PM CDT, 3 hours 55 minutes before
NEZ007-310255-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
855 PM CDT THU MAY 30 1991

...THUNDERSTORMS DEVELOPING ACROSS SOUTHEAST CUSTER COUNTY...

LATEST RADAR OBSERVATIONS SHOWED THUNDERSTORMS DEVELOPING
RAPIDLY ACROSS NORTHEAST DAWSON COUNTY ABOUT 30 MILES SOUTH
OF BROKEN BOW NEBRASKA.  THESE THUNDERSTORMS WILL BE MOVING
NORTH AT 25 MILES AN HOUR INTO SOUTHERN CUSTER COUNTY.  PERSONS
IN THE TOWN OF ANSLEY SHOULD PREPARE FOR THUNDERSTORMS WITH
VERY HEAVY RAIN...STRONG GUSTY WINDS...LARGE HAIL AND POSSIBLE
TORNADOES BY 940 PM CDT.  ANOTHER THUNDERSTORM WAS DEVELOPING
NEAR THE TOWN OF OCONTO...WHICH IS 40 MILES EAST OF NORTH PLATTE.

REMEMBER A TORNADO WATCH REMAIXNS IN EFFECT FOR MUCH OF SOUTHWEST
AND WEST CENTRAL NEBRASKA UNTIL 2 AM CDT.

SC
Special weather statement, May 30, 9:00 PM CDT, 3 hours 52 minutes before
NEZ007-310255-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
855 PM CDT THU MAY 30 1991

...THUNDERSTORMS DEVELOPING ACROSS SOUTHEAST CUSTER COUNTY...

AT 850 PM CDT...LATEST RADAR OBSERVATIONS SHOWED THUNDERSTORMS
DEVELOPING RAPIDLY ACROSS NORTHEAST DAWSON COUNTY ABOUT 30 MILES
SOUTH OF BROKEN BOW NEBRASKA.  THESE THUNDERSTORMS WILL BE MOVING
NORTH AT 25 MILES AN HOUR INTO SOUTHERN CUSTER COUNTY.  PERSONS
IN THE TOWN OF ANSLEY SHOULD PREPARE FOR THUNDERSTORMS WITH
VERY HEAVY RAIN...STRONG GUSTY WINDS...LARGE HAIL AND POSSIBLE
TORNADOES BY 940 PM CDT.  ANOTHER THUNDERSTORM WAS DEVELOPING
NEAR THE TOWN OF OCONTO...WHICH IS 40 MILES EAST OF NORTH PLATTE.

REMEMBER A_ TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF SOUTHWEST
AND WEST CENTRAL NEBRASKA UNTIL 2 AM CDT.

SC

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 30, 9:25 PM CDTSevere Thunderstorm WarningLBFCuster65 min
May 30, 9:37 PM CDTTornado WarningLBFCuster38 min
May 30, 9:45 PM CDTSevere Thunderstorm WarningLBFGarfield, Loup60 min
May 30, 10:02 PM CDTTornado WarningLBFGarfield, Loup28 min
May 30, 10:16 PM CDTTornado WarningLBFCuster29 min
May 30, 10:38 PM CDTSevere Thunderstorm WarningLBFGarfield, Holt, Loup67 min
May 30, 10:50 PM CDTTornado WarningLBFCuster10 min
May 30, 10:53 PM CDTTornado WarningLBFGarfield, Loup37 min
May 30, 11:58 PM CDTSevere Thunderstorm WarningLBFMadison32 min
May 31, 12:08 AM CDTTornado WarningLBFMadison, Stanton37 min

Nearby

Tornado Warnings in Nebraska, 1991Every tornado warning in 1991Tornadoes in 1991

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.