Alert archive / Nebraska / Tornado Warnings in 1991
Tornado Warning 23, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at Jun 9, 1991, 5:54 PM MDT for Box Butte County, Nebraska. It was in force for 36 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 9, 1991, 5:54 PM MDT (23:54 UTC)
- Expired
- Jun 9, 1991, 6:30 PM MDT
- In force
- 36 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Box Butte County, NE
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 9, 6:38 PM MDT | Hail 0.75 | Box Butte, NE |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Rapid City, SD (KRAP), launched 12:00Z, 11.9 hours before the alert went out and 206 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.
- Mixed-layer CAPE
- 34 J/kg
- Mixed-layer CIN
- -441 J/kg
- Mixed-layer LCL
- 2018 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KBFF 092354
TORBFF
NEC013-100030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
554 PM MDT SUN JUN 9 1991
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 630 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE PANHANDLE OF NEBRASKA
BOX BUTTE...THE CITY OF ALLIANCE
AT 553 PM MDT...A TORNADO WAS INDICATED BY RADAR 8 MILES WEST OF
ALLIANCE NEBRASKA MOVING EAST AROUND 10 MPH.
TAKE SHELTER IN A BASEMENT IF AVAILABLE. OTHERWISE GO TO A SMALL
INTERIOR ROOM ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS. ABANDON
CARS AND MOBILE HOMES.
LARGE HAIL...DANGEROUS LIGHTNING AND VERY HEAVY RAIN ARE L1IKELY WITH
THIS STORM...IN ADDITION TO THE THREAT OF TORNADOES.
TAKE COVER NOW.
PFEIFFERWhat 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 9, 2:00 PM MDT, 3 hours 54 minutes before
WYZ013-014-015-016-017-092200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 155 PM MDT SUN JUN 9 1991 ...THUNDERSTORMS WERE DEVELOPING OVER EXTREME SOUTHERN WYOMING... AT 140 PM THUNDERSTORMS WERE DEVELOPING OVER THE EXTREME SOUTH PART OF WYOMING. AT THAT TIME THE STRONGEST STORMS WERE LOCATED JUST WEST OF THE FLAMING GORGE RESERVOIR...45 MILES SOUTHWEST OF ROCK SPRINGS AND ABOUT 20 MILES SOUTH OF LARAMIE...NEAR TIE SIDING. ALL OF THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 25 MILES AN HOUR. STORMS WILL CONTINUE TO DEVELOP AND SPREAD OVER MUCH OF THE SOUTHEAST HALF OF WYOMING THROUGH THE EVENING. SOME STORMS MAY EVEN CONTINUE AFTER MIDNIGHT. AT 147 PM A FUNNEL CLOUD WAS REPORTED ABOUT 10 MILES SOUTH OF LARAMIE. THE STORMS IN SOUTHWEST WYOMING WILL MAINLY PRODUCE STRONG WIND GUSTS TO 45 MILES AN HOUR. THOSE IN THE SOUTHEAST WILL PRODUCE BRIEF HEAVY RAIN...HAIL AND STRONG WINDS. PEOPLE IN THE SOU\THEAST HALF OF WYOMING SHOULD BE AWARE OF THE POSSIBILITY OF THUNDERSTORMS FOR THE REST OF THE AFTERNOON AND INTO TONIGHT. IF A STORM APPROACHES...SEEK SAFE INDOOR SHELTER RIGHT AWAY. WEILAND
Local storm report, Jun 9, 3:12 PM MDT, 2 hours 42 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
300 PM MDT SUN JUN 9 1991
SELS MKC OMA A BFF...DATA FROM EARLY SUN.MORN 6/9/1991...
TIME EVENT
158 AM MDT CHADRONA POLICE REPORTED HEAVY RAIN AND PEA-SIZE HAIL IN
THE CITY OF CHADRON...DAWES COUNTY.
205 AM MDT CHADRON WARNING POINT REPORTED RISING WATER AND LOWLAND
FLOODING CHADRON STATE PARK...12S OF CHADRON...DAWES COUNTY
232 AM MDT LOWLAND FLOOpDING IN CHADRON STATE PARK...DAWES COUNTY.
239 AM MDT 1/2 INCH HAIL AND HEAVY RAIN IN HAY SPRINGS...SHERIDAN
COUNTY
EMANUEL/PEEK/PFEIFFERSpecial weather statement, Jun 9, 3:41 PM MDT, 2 hours 13 minutes before
NEZ001-005-011-092230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 340 PM MDT SUN JUN 9 1991 ...TORNADO WATCH IN EFFECT UNTIL 9PM MDT FOR NEBRASKA PANHANDLE... AT 338 PM MDT RADAR INDICATED A STRONG THUNDERSTORM 7 MILES NORTHWEST OF KIMBALL...OR 35 MILES SOUTH OF SCOTTSBLUFF...IN KIMBALL COUNTY OF THE NEBRASKA PANHANDLE. THE STORM WAS MOVING TO THE EAST AT 20 MPH. BRIEF HEAVY RAIN...STRONG GUSTY WIND...DEADLY LIGHTNING AND SMALL HAIL IS POSSIBLE WITH THIS STORM IN KIMBALL COUNTY UNTIL 430 PM MDT. EMANUEL
Special weather statement, Jun 9, 4:53 PM MDT, 1 hour 1 minute before
WYZ017-092300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 455 PM MDT SUN JUN 9 1991 ...STRONG THUNDERSTORM OVER THE PINE BLUFFS AREA... RADAR INDICATED A STRONG THUNDERSTORM OVER THE PINE BLUFFS AREA. THE POLICE DEPARTMENT REPORTED MODERATE RAIN AND PEA TO MARBLE SIZE HAIL FROM THIS STORM. THE THUNDERSTORM WAS MOVING TO THE NORTHEAST AT 25 MILES AN HOUR. THE STORM SHOULD BE EAST OF THE PINE BLUFFS AREA IN 10 TO 15 MINUTES.3 LAUZE
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 6:02 PM MDT | Severe Thunderstorm Warning | CYS | Deuel | 28 min |
| Jun 9, 12:50 AM MDT | Severe Thunderstorm Warning | CYS | Sioux | 40 min |
| Jun 9, 1:02 AM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes | 28 min |
| Jun 9, 1:30 AM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes, Sheridan | 45 min |
| Jun 9, 2:19 AM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 26 min |
| Jun 9, 4:00 PM MDT | Tornado Warning | CYS | Kimball | 3 hr |
| Jun 9, 4:39 PM MDT | Tornado Warning | CYS | Morrill | 36 min |
| Jun 9, 5:49 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 26 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.