Alert archive / Nebraska / Tornado Warnings in 1991
Tornado Warning 31, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at Jun 22, 1991, 5:57 PM MDT for Cheyenne County, Morrill County, Nebraska. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Jun 22, 1991, 5:57 PM MDT (23:57 UTC)
- Expired
- Jun 22, 1991, 6:25 PM MDT
- In force
- 28 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
Counties Cheyenne County, NE, Morrill County, NE
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 12.0 hours before the alert went out and 179 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
- 299 J/kg
- Mixed-layer CIN
- -102 J/kg
- Mixed-layer LCL
- 841 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 161 m²/s²
- 0-3 km storm-relative helicity
- 217 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KBFF 222357
TORBFF
NEC123-033-230030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
557 PM MDT SAT JUN 22 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
SOUTHERN MORRILL...NORTHERN CHEYENNE
AT 553 PM MDT A TORNADO WAS INDICATED BY RADAR 15 MILES NORTH OF
SIDNEY IN NORTHERN CHEYENNE AND SOUTHERN MORRILL COUNTIES OF THE
PANHANDLE. THE STORM WAS MOVING NORTHEAST AT 25 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.
GIVE REPORTS OF SEVERE WEATHER OR DAMAGE TO A LAW ENFORCEMENT AGENCY
FOR RELAY TO THE NATIONAL WEATHER SERVICE.
TAKE COVER NOW.
TORNADO WATCH NUMBER 583 IS IN EFFECT FOR THE ENTIRE PANHANDLE UNTIL
E11 PM MDT.
KYLEWhat 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 22, 1:43 PM MDT, 4 hours 14 minutes before
WYZ016-017-222100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 142 PM MDT SAT JUN 22 1991 ...A TORNADO WATCH HAS BEEN ISSUED FOR A LARGE PART OF EASTERN WYOMING UNTIL 8PM TONIGHT... THUNDERSTORMS HAVE BEGUN TO DEVELOP OVER A PART OF SOUTHEAST WYOMING. SHORTLY AFTER 130PM THIS AFTERNOON WEATHER RADAR INDICATED THAT THE STRONGEST STORMS WERE MOVING INTO THE SOUTHEAST CORNER OF WYOMING FROM NORTHERN COLORADO. AT THAT TIME THEY WERE 15 TO 20 MILES SOUTHWEST OF CHEYENNE...MOVING NORTHEAST AROUND 20 MILES AN HOUR. OTHER THUNDERSTORMS WERE INTENSIFYING OVER CENTRAL AND NORTHERN ALBANY COUNTY. THE STRONGEST WERE JUST NORTH OF THE TOWN OF GARRETT ...WHICH IS 33 MILES WEST OF WHEATLAND. A TORNADO WATCH REMAINS IN EFFECT FOR A LARGE PART OF EASTERN WYOMING UNTIL 8PM THIS EVENING. PERSONS IN THIS AREA SHOULD KEEP ABREAST OF THE LATEST WEATHER DEVELOPEMENTS. BE PREPARED TO SEEK SHELFTER IF THREATENING WEATHER APPROACHES. CGB
Special weather statement, Jun 22, 3:47 PM MDT, 2 hours 10 minutes before
WYZ017-222245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 345 PM MDT SAT JUN 22 1991 ...A BAND OF STRONG THUNDERSTORMS CONTINUING THROUGH EASTERN LARAMIE COUNTY... AT 340PM CHEYENNE RADAR SHOWED A BAND OF STRONG THUNDERSTORMS IN EASTERN LARAMIE COUNTY OF SOUTHEAST WYOMING. THE BAND EXTENDED FROM 25 MILES NORTHEAST OF CHEYENNE TO 15 MILES SOUTHEAST OF CHEYENNE AND WAS APPROACHING THE TOWNS OF BURNS AND CARPENTER. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 20 MILES AN HOUR. BRIEF HEAVY RAIN...STRONG WINDS AND SMALL HAIL SHOULD BE EXPECTED WITH THESE THUNDERSTORMS. THE STORMS WILL BE MONITORED CLOSELY FOR POSSIBLE INTENSIFICATION. A TORNADO WATCH REMAINS VIN EFFECT FOR A LARGE PART OF EASTERN WYOMING UNTIL 800PM THIS EVENING. PEOPLE IN EASTERN WYOMING SHOULD KEEP ABREAST OF THE LATEST WEATHER DEVELOPMENTS. BE PREPARED TO SEEK SHELTER IF THREATENING WEATHER APPROACHES. COX
Special weather statement, Jun 22, 3:50 PM MDT, 2 hours 7 minutes before
NEZ001-005-011-222315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 350 PM MDT SAT JUN 22 1991 ...THUNDERSTORMS EXPECTED IN NEBRASKA PANHANDLE... AT 348 PM MDT...NUMEROUS SHOWERS AND THUNDERSTORMS WERE IN EASTERN WYOMING APPROACHING THE NEBRASKA/WYOMING STATELINE. THE STORMS WERE LOCATED FROM EAST OF GREELEY COLORADO...TO JUST EAST OF CHEYENNE...AND NORTH TO LUSK WYOMING. THE STORMS WERE MOVING NORTHEAST AT 20 MPH. THE STORMS WILL BE ENTERING WESTERN BANNER COUNTY BY 4PM MDT...KIMBALL COUNTY BY 430 PM MDT...NORTHWESTERN SIOUX COUNTY BY 430 PM MDT...AND SOUTHWESTERN SCOTTS BLUFF COUNTY BY 430 PM MDT. HEAVY RAIN...STRONG GUSTY WINDS...AND SMALL HAIL ARE POSSIBLE WgITH THESE STORMS IN THE WESTERN PANHANDLE UNTIL 515 PM MDT. PFEIFFER
Special weather statement, Jun 22, 4:42 PM MDT, 1 hour 15 minutes before
WYZ017-222315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 440 PM MDT SAT JUN 22 1991 ...THE LINE OF STORMS WAS MOVING EAST OUT OF SOUTHEAST WYOMING AT 440 PM... RADAR AT 440 PM SHOWED THAT THE LINE OF THUNDERSTORMS HAD MOVED EAST INTO THE NEBRASKA PANHANDLE. OUTSIDE OF SOME BRIEF HEAVY RAIN AND SMALL HAIL...NO SEVERE WEATHER WAS REPORTED IN EASTERN LARAMIE COUNTY AS THE LINE OF STORMS WENT THROUGH. A TORNADO WATCH REMAINS IN EFFECT FOR A LARGE PART OF EASTERN WYOMING UNTIL 8 PM. HOWEVER...CURRENT RADAR AND SURFACE WEATHER REPORTS INDICATE THAT THE THREAT OF STRONG STORMS HAS DIMINISHED...AND HENCE PARTS OF THE WATCH AREA MAY BE CANCELLED SHORTLY. JAD
Special weather statement, Jun 22, 5:06 PM MDT, 51 minutes before
NEZ001-005-011-230000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 505 PM MDT SAT JUN 22 1991 ...TORNADO WATCH EFFECTIVE UNTIL 11 PM MDT... ...STRONG THUNDERSTORMS IN WESTERN NEBRASKA PANHANDLE... AT 502 PM MDT...RADAR INDICATED A LINE OF THUNDERSTORMS OVER SCOTTS BLUFF...BANNER AND KIMBALL COUNTIES IN THE PANHANDLE. THE LINE OF STORMS WAS FROM 12 MILES NORTH OF SCOTTSBLUFF TO 40 MILES SOUTHWEST OF SIDNEY...NEAR FORT MORGAN IN COLORADO. THE STORMS WERE MOVING NORTHEAST AT 25 MPH. BRIEF HEAVY RAIN...STRONG GUSTY WINDS...HAIL AND DANGEROUS LIGHTNING ARE POSSIBLE WITH THIS LINE OF STORMS OVER SIOUX...BOX BUTTE...SCOTTS BLUFF ...MORRILL...BANNER...KIMBALL AND CHEYENNE COUNTIES OF THE PANHANDLE UNTIL 6 PM MDT. TORNADO WATCH NUMBER 583 IS IN EFFECT FOR THE PANHANDLE UNTIL 11 PM MDT. KYLE
Special weather statement, Jun 22, 5:42 PM MDT, 15 minutes before
WYZ015-016-017-230015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 540 PM MDT SAT JUN 22 1991 ...THE TORNADO WATCH HAS BEEN CANCELLED FOR LARAMIE...ALBANY AND FAR EASTERN CARBON COUNTIES OF SOUTHEAST WYOMING AS OF 530 PM... ALMOST ALL THE THUNDERSTORMS HAVE MOVED OUT OF SOUTHEAST WYOMING AT 530 PM...AND SO THE TORNADO WATCH HAS BEEN CANCELLED FOR THE COUNTIES OF LARAMIE...ALBANY AND FAR EASTERN CARBON. A TORNADO WATCH STILL CONTINUES UNTIL 8 PM FOR MUCH OF NORTHEAST AND EAST CENTRAL WYOMING HOWEVER...INCLUDING PLATTE AND GOSHEN COUNTIES. A FEW SMALL THUNDERSTORMS WERE MOVING THROUGH PLATTE COUNTY AT 530 PM ...WITH ANOTHER STRONGER STORM OVER THE LARAMIE RANGE SOUTH OF DOUGLAS. THESE STORMS WERE MOVING EAST AT ABOUT 30 MILES AN HOUR. JAD
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.