Alert archive / Nebraska / Tornado Warnings in 1986
Tornado Warning 17, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at Jun 30, 1986, 6:37 PM MDT for Sheridan County, Nebraska. It was in force for 13 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1986, 6:37 PM MDT (00:37 UTC)
- Expired
- Jun 30, 1986, 6:50 PM MDT
- In force
- 13 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Sheridan County, NE
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Rapid City, SD (KRAP), launched 00:00Z, 0.6 hours before the alert went out and 178 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
- 31 J/kg
- Mixed-layer CIN
- -254 J/kg
- Mixed-layer LCL
- 1154 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBFF 010037 TORBFF NEC161-010050- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 637 PM MDT MON JUN 30 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 650 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY OF PANHANDLE OF NEBRASKA...EAST CENTRAL SHERIDAN AT 633 PM MDT A TORNADO WAS INDICATED BY RADAR 5 MILES SOUTH OF GORDON NEBRASKA...OR 43 MILES EAST OF CHADRON...MOVING TO THE SOUTHEAST AT 30 MILES AN HOUR. IF YOU ARE IN THE PATH OF THIS TORNADO..YOU SHOULD GO TO A BASEMENT SHELTER IF AVAILABLE. OTHERWISE GO TO A CENTRAL INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. CARS AND MOBILE HOMES SHOULD BE' ABANDONED FOR A REINFORCED BUILDING. IN ADDITION TO THE THREAT OF TORNADOES..LARGE HAIL..DANGEROUS LIGHTNING AND VERY HEAVY RAIN IS LIKELY WITH THIS STORM. 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 30, 2:17 PM MDT, 4 hours 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 215 PM MDT MON JUN 30 1986 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM FOR EASTERN WYOMING. AT 215 PM...WEATHER RADAR AT CHEYENNE INDICATED A BAND OF THUNDERSTORMS FROM CHEYENNE SOUTHWEST TO JUST SOUTH OF LARAMIE. THE STRONGEST STORMS WERE LOCATED JUST WEST AND NORTH OF CHEYENNE. MOVEMENT WAS NORTHEAST AT ABOUT 20 MILES AN HOUR. THESE THUNDERSTORMS WERE NOT REAL STRONG...HENCE NO SEVERE WEATHER HAS BEEN REPORTED WITH THEM. HOWEVER...CONDITIONS ARE RIPE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN MUCH OF EASTERN WYOMING INTO THIS EVENING...SO STAY ALERT AND WATCH THE SKY. DASELER
Special weather statement, Jun 30, 3:02 PM MDT, 3 hours 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 300 PM MDT MON JUN 30 1986 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF THE NEBRASKA PANHANDLE UNTIL 900PM MDT TONIGHT... AT 255PM MDT..THUNDERSTORMS HAVE DEVELOPED OVER SOUTHEAST WYOMING NEAR CHEYENNE THAT WERE MOVING TO THE EAST AT 20 MPH. THESE STORMS WILL BE REACHING INTO THE SOUTHWEST NEBRASKA PANHANDLE BY 4PM MDT AND MAY BE ACCOMPANIED BY BRIEF HEAVY RFAIN..GUSTY WIND AND SMALL HAIL OVER KIMBALL AND BANNER COUNTIES OF THE SOUTHWEST PANHANDLE. KOSEL
Special weather statement, Jun 30, 3:27 PM MDT, 3 hours 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 325 PM MDT MON JUN 30 1986 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM FOR EASTERN WYOMING... BETWEEN 2 TO 230 PM THIS AFTERNOON 1/2 INCH SIZE HAIL AND HEAVY RAINS WERE REPORTED OVER THE EXTREME NORTHEAST CORNER OF WYOMING BETWEEN SUNDANCE TO THE SOUTH DAKOTA BORDER. DOWN IN THE SOUTHEAST CORNER OF THE STATE A THUNDERSTORM MOVED THROUGH CHEYENNE AROUND 230 PM WITH BRIEF HEAVY RAINS DEPOSITING TWO TENTHS OF AN INCH OF RAIN AT THE AIRPORT AND A PEAK WIND GUST TO 46 MILES AN HOUR. THE THUNDERSTORM CONTINUED EAST PASSING HILLSDALE WITH STRONG WINDS AT 255 PM. NO SEVERE WEATHER WAS REPORTED WITH THESE STORMS ALTHOUGH THE WERE CERTAINLY STRONG ONES. THE THUNDERSTORM IN THE SOUTHEAST CORNER WILL MOVE INTO THE PINE BLUFFS TO ALBIN AREA BETWEEN 330 TO 4 PM THIS AFTERNOON. REMEMBER THAT A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT OVER THE EASTERN QUARTER OF THE STATE UNTIL 9 PM THIS MONDAY EVENING. PEOPLE IN THE EASTERN END OF THE STATE SHOULD THINK ABOUT SAFETY PROCEDURES FOR SEVERE THUNDERSTORMS. SEEK SHELTER IF THREATENING WEATHER APPROACHES AND NOTIFY YOUR LOCAL LAW ENFORCEMENT AGENCY WITH "YOUR SEVERE WEATHER REPORT WHEN SAFE. LAUZE
Special weather statement, Jun 30, 4:27 PM MDT, 2 hours 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 425 PM MDT MON JUN 30 1986 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF THE NEBRASKA PANHANDLE UNTIL 900PM MDT TONIGHT... AT 420PM MDT..A STRONG THUNDERSTORM WAS MOVING OUT OF CENTRAL WYOMING INTO THE EXTREME NORTHWEST CORNER OF THE NEBRASKA PANHANDLE. THIS THUNDERSTORM WAS MOVING TO THE EAST AT 25 MPH AND WILL CROSS NORTHERN SIOUX COUNTY..ACCOMPANIED BY BRIEF HEAVY RAIN..STROMG GUSTY WIND AND HAIL UNTIL 530PM MDT. KOSEL
Special weather statement, Jun 30, 4:50 PM MDT, 1 hour 47 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 450 PM MDT MON JUN 30 1986 ...A SEVERE THUNDERSTORM WATCH CONTINUES FOR EASTERN WYOMING TIL 9 PM. A SEVERE THUNDERSTORM WATCH CONTINUES FOR EXTREME EASTERN WYOMING TIL 9 PM THIS MONDAY EVENING. AT 430 PM SATELLITE PICTURES AND RADAR SHOWED WIDELY STRONG THUNDERSTORMS ALONG THE WYOMING AND SOUTH DAKOTA BORDER OVER THE BLACK HILLS AREA. OTHER ISOLATED THUNDERSHOWERS WERE LOCATED IN EXTREME SOUTHEAST WYOMING JUST SOUTH OF PINE BLUFFS WYOMING OR 40 MILES EAST OF CHEYENNE. THESE STORMS WERE MOVING EAST AT 25 MILES AN HOUR. NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS. BUT RESIDENTS IN EXTREME EASTERN WYOMIgNG SHOULD BE PREPARED FOR RAPIDLY DEVELOPING THUNDERSTORMS IN AND NEAR THE WATCH AREA THIS EVENING. RIZZO
Special weather statement, Jun 30, 5:56 PM MDT, 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 558 PM MDT MON JUN 30 1986 ...SEVERE THUNDERSTORM WATCH IS CANCELLED FOR PARTS OF WYOMING... THE SEVERE THUNDERSTORM WATCH IS CANCELLED FOR CAMPBELL..CROOK.. CONVERSE...PLATTE...AND LARAMIE COUNTIES IN EASTERN WYOMING. THE SEVERE THUNDERSTORM WATCH WILL CONTINUE UNTIL 8 PM MDT FOR WESTON...NIOBRARA...AND GOSHEN COUNTIES IN EXTREME EASTERN WYOMING. THIS INCLUDES THE CITIES OF LUSK..NEWCASTLE..AND TORRINGTON. RESIDENTS IN AND NEAR THE WATCH AREA SHOULD BE PREPARED FOR RAPIDLY DEVELOPING THUNDERSTORMS. RIZZO
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 6:04 PM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 56 min |
| Jun 30, 6:04 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 56 min |
| Jun 30, 6:12 PM MDT | Tornado Warning | CYS | Sheridan | 28 min |
| Jun 30, 7:03 PM MDT | Severe Thunderstorm Warning | CYS | Dawes, Sioux | 57 min |
| Jun 30, 7:11 PM MDT | Severe Thunderstorm Warning | CYS | Dawes, Sioux | 49 min |
Nearby
Tornado Warnings in Nebraska, 1986Every tornado warning in 1986Tornadoes in 1986
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.