Alert archive / Nebraska / Tornado Warnings in 1991

Tornado Warning 15, NWS Cheyenne, WY

June 3, 1991Sioux County, Nebraska

NWS Cheyenne, WY issued this tornado warning at Jun 3, 1991, 1:23 PM MDT for Sioux County, Nebraska. It was in force for 37 min.

The area

The counties it named.

The facts

Issued
Jun 3, 1991, 1:23 PM MDT (19:23 UTC)
Expired
Jun 3, 1991, 2:00 PM MDT
In force
37 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Sioux County, NE

The nearest sounding before it

Rapid City, SD (KRAP), launched 12:00Z, 7.4 hours before the alert went out and 190 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, Rapid City, SD at 12:00Z on 1991-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLLFCEL10008507005003002001001 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, Rapid City, SD at 12:00Z on 1991-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.19395878Sfc1 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
7 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
1145 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
132 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.

000 
TTAA00 KBFF 031923
TORBFF
NEC165-032000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
123 PM MDT MON JUN 3 1991

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 200 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE PANHANDLE OF NEBRASKA
      EAST CENTRAL AND NORTHEAST SIOUX

AT 122 PM MDT...RADAR INDICXATED A POSSIBLE TORNADO 40 MILES
SOUTHWEST OF CHADRON NEBRASKA...OR 14 MILES SOUTHWEST OF CRAWFORD
AND FORT ROBINSON.  THE STORM WAS MOVING NORTH AT 20 MPH.

IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER IN A NEARBY REINFORCED
BUILDING.  AS A LAST RESORT...TAKE SHELTER IN A CULVERT...DITCH OR
LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

DO NOT TRY TO OUTRUN A TORNADO IN A CAR.  CARS ARE EASILY TOSSED
AROUND BY TORNADOES.  IF YOU ARE CAUGHT IN THE PATH OF A TORNADO...
LEAVE THE CAR AND GO TO A REINFORCED BUILDING.  IF NO STRUCTURE IS
NEARBY...TAKE SHYELTER IN A DITCH OR LOW SPOT AWAY FROM THE VEHICLE.

TAKE COVER NOW.

PFEIFFER

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, Jun 3, 10:23 AM MDT, 3 hours before
NEZ001-005-011-031715-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
1022 PM MDT MON JUN 3 1991

...A THUNDERSTORM IN THE SOUTHERN NEBRASKA PANHANDLE...

AT 1020 PM MDT...RADAR INDICATED A STRONG THUNDERSTORM 10 MILES WEST
OF SIDNEY JUST 7 MILES SOUTH OF INTERSATE 80.  THE STORM WAS MOVING
NORTH AT 30 MPH.

THE BANKS OF LODGEPOLE CREEK ARE FULL THIS MORNING AND ADDITIONAL RAIN
FROM THIS THUNDERSTORM MAY CAUSE LOCALISED FLOODING IN SOME AREAS ALONG
THE CREEK.

BRIEF HEAVY RAIN...STRONG GUSTY WIND AND SMALL HAIL ARE POSSIBLE WITH
THIS STORM AS IT MOVES NORTH ACROSS EASTERN CHEYENNE COUNTY UNTIL 1115 PM
MDT.
PEEK
Special weather statement, Jun 3, 10:24 AM MDT, 2 hours 59 minutes before
NEZ001-005-011-031715-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
1022 PM MDT MON JUN 3 1991

...A THUNDERSTORM IN THE SOUTHERN NEBRASKA PANHANDLE...

AT 1020 PM MDT...RADAR INDICATED A STRONG THUNDERSTORM 10 MILES WEST
OF SIDNEY JUST 7 MILES SOUTH OF INTERSATE 80.  THE STORM WAS MOVING
NORTH AT 30 MPH.

THE BANKS OF LODGEPOLE CREEK ARE FULL THIS MORNING AND ADDITIONAL RAIN
FROM THIS THUNDERSTORM MAY CAUSE  LOCALISED FLOODING IN SOME AREAS ALONG
THE CREEK.

BRIEF HEAVY RAIN...STRONG GUSTY WIND AND SMALL HAIL ARE POSSIBLE WITH
THIS STORM AS IT MOVES NORTH ACROSS EASTERN CHEYENNE COUNTY UNTIL 1115
 AM MDT.
PEEK
Special weather statement, Jun 3, 10:27 AM MDT, 2 hours 56 minutes before
NEZ001-005-011-031715-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
1022 AM MDT MON JUN 3 1991

...A THUNDERSTORM IN THE SOUTHERN NEBRASKA PANHANDLE...

AT 1020 AM MDT...RADAR INDICATED A STRONG THUNDERSTORM 10 MILES WEST
OF SIDNEY JUST 7 MILES SOUTH OF INTERSATE 80.  THE STORM WAS MOVING
NORTH AT 30 MPH.

THE BANKS OF LODGEPOLE CREEK ARE FULL THIS MORNING AND ADDITIONAL RAIN
FROM THIS THUNDERSTORM MAY CAUSE LOCALISED FL"OODING IN SOME AREAS ALONG
THE CREEK.

BRIEF HEAVY RAIN...STRONG GUSTY WIND AND SMALL HAIL ARE POSSIBLE WITH
THIS STORM AS IT MOVES NORTH ACROSS EASTERN CHEYENNE COUNTY UNTIL 1115 PM
MDT.
PEEK
Special weather statement, Jun 3, 11:21 AM MDT, 2 hours 2 minutes before
NEZ001-005-011-031815-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
1121 AM MDT MON JUN 3 1991

...INCREASING THUNDERSTORMS ACROSS THE SOUTHERN NEBRASKA PANHANDLE...

AT 1119 AM MDT...RADAR INDICATED STRONG THUNDERSTORMS DEVELOPING FROM
30 MILES SOUTHEAST OF SCOTTSBLUFF TO 10 MILES NORTH OF SIDNEY TO 40
MILES EAST OF SIDNEY.  THE STORMS WERE MOVING NORTH AT 25 MPH.

BRIEF HEAVY RAIN...STRONG GUSTY WIND AND SMALL HAIL ARE POSS`IBLE WITH
THESE STORMS AS THEY MOVE ACROSS EASTERN BANNER...SOUTHERN MORRILL...
NORTHERN CHEYENNE AND DEUEL COUNTIES UNTIL 1215 PM MDT.
PEEK
Special weather statement, Jun 3, 11:21 AM MDT, 2 hours 2 minutes before
WYZ016-017-031830-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1120 AM MDT MON JUN 3 1991

SCATTERED THUNDERSTORMS HAD ALREADY DEVELOPED OVER THE SOUTHEAST
CORNER OF WYOMING LATE THIS MORNING.  A FEW OF THESE WERE PRODUCING
LOCALLY HEAVY RAIN AND SMALL HAIL AS THEY MOVED NORTH AROUND
15 MILES AN HOUR.

THUNDERSTORMS WILL CONTINUE OVER THE SOUTHEAST CORNER OF WYOMING
THROUGH THE EVENING.  WHILE NO SEVERE WEATHER IS EXPECTED...SOME OF
THE STORMS WILL CAUSE LOCALLY HEAVY RAIN AND SMALL HAIL.

WITH THE GROUND ALREADY SOAKED FROM PREVIOUS RAINFALL SATURDAY AND
SUNDAY...ANY RAIN TODAY WILL ONLY ADD TO FLOODING PROBLEMS.  SOME
ADDITIONAL MINOR FLOODING OF SMALL CREEKS AND STREAMS IS LIKELY LATER
TODAY INTO THIS EVENING.

PEOPLE IN THE SOUTHEAST CORNER OF WYOMING SHOULD AVOID SMALL CREEKS
AND STREAMS.  SHOULD YOU ENCOUNTER RISING WATER...CLIMB TO HIGHER
GROUND IMMEDIATELY.  MOTORISTS SHOULD NEVER ATTEMPT TO CROSS WvATER
OF AN UNKNOWN DEPTH.

HATTEN
Special weather statement, Jun 3, 12:20 PM MDT, 1 hour 3 minutes before
NEZ001-005-011-031915

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
1220 PM MDT MON JUN 3 1991

...THUNDERSTORMS IN THE CENTRAL NEBRASKA PANHANDLE...

AT 1218 PM MDT...RADAR INDICATED STRONG THUNDERSTORMS FROM JUST SOUTH
OF SCOTTSBLUFF TO 23 MILES SOUTHWEST OF ALLIANCE TO 40 MILES NORTHEAST
OF SIDNEY.  OTHER STRONG STORMS WERE LOCATED FROM 30 MILES WEST OF
ALLIANCE INTO THE ALLIANCE AREA.  ALL STORMS WERE MOVING NORTH AT
20 MPH.

BRIEF HEAVY RAIN...STRONG GUSTY WIND AND SMALL HAIL ARE POSSIBLE WITH
THESE STORMS AS THEY MOVE ACROSS SCOTTS BLUFF...MORRILL...GARDEN....BOX
BUTTE AND SOUTHERN SHERIDAN COUNTIES UNTIL 115 PM MDT.
PEEK

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 3, 12:52 PM MDTSevere Thunderstorm WarningCYSBox Butte, Dawes38 min
Jun 3, 1:56 PM MDTSevere Thunderstorm WarningCYSDawes34 min
Jun 3, 4:49 PM MDTTornado WarningCYSBanner26 min
Jun 3, 5:09 PM MDTSevere Thunderstorm WarningCYSSheridan36 min
Jun 3, 5:20 PM MDTTornado WarningCYSBanner25 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.