Alert archive / Nebraska / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 13, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at May 26, 1987, 5:04 PM MDT for Box Butte County, Sioux County, Nebraska. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- May 26, 1987, 5:04 PM MDT (23:04 UTC)
- Expired
- May 26, 1987, 6:00 PM MDT
- In force
- 56 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
Counties Box Butte County, NE, Sioux 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 12:00Z, 11.1 hours before the alert went out and 196 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
- 2 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 659 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBFF 262304 SVRBFF NEC013-165-270000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 504 PM MDT TUE MAY 26 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF PANHANDLE OF NEBRASKA...BOX BUTTE...SOUTHEAST SIOUX AND THE CITY OF ALLIANCE AT 5 PM MDT..RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES NORTHEAST OF SCOTTSBLUFF NEBRASKA THAT WAS MOVING NORTHEAST AT 35 MPH. REMEMBER A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH..LARGE HAIL..DEADLY LIGHTNING AND VERY HEAVY RAIN THAT CAN QUICKLY FLOOD LOW LYING AREAS. THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING..SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO A PLACE OF SAFETY IF ONE IS SPOTTED. KOSEL
What forecasters said that day
The local office's own words before this severe thunderstorm 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 26, 1:07 PM MDT, 3 hours 57 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 105 PM MDT TUE MAY 26 1987 A LINE OF STRONG THUNDERSTORMS EXTENDED FROM SOUTH OF CASPER WYOMING... SOUTHEAST TO LARAMIE AND THEN DOWN ALONG THE FRONT RANGE IN COLORADO AT 1 PM. ANOTHER STRONG THUNDERSTORM WAS OCCURRING JUST SOUTH OF CHEYENNE. ALL OF THE THUNDERSTORMS WERE MOVING NORTH AT 15 MILES AN HOUR. PEOPLE IN SOUTHEAST WYOMING SHOULD BE PREPARED FOR BRIEF HEAVY RAIN... SMALL HAIL AND GUSTY WINDS WITH THE THUNDERSTORMS. IF THREATENING WEATHER APPROACHES...BE READY TO SEEK SHELTER IMMEDIATELY. HATTEN
Special weather statement, May 26, 3:37 PM MDT, 1 hour 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 335 PM MDT TUE MAY 26 1987 ...THUNDERSTORMS MOVING INTO THE SOUTHWEST NEBRASKA PANHANDLE... STRONG THUNDERSTORMS THAT DEVELOPED OVER SOUTHEAST WYOMING EARLIER THIS AFTERNOON WERE BEGINNING TO MOVE INTO THE SOUTHWEST NEBRASKA PANHANDLE. AT 330PM MDT THE STRONGEST STORMS WERE LOCATED ABOUT 40 MILES SOUTHWEST OF SCOTTSBLUFF NEBRASKA THAT WERE MOVING TO THE NORTHEAST AT 35 MPH. BRIEF HEAVY RAIN...STRONG GUSTY WIND AND HAIL IS POSSIBLE WITH THESE STORMS OVER BANNER AND SCOTTS BLUFF COUNTIES OF THE NEBRASKA PANHANDLE UNTIL 530PM MDT. 3/4 INCH HAIL WAS REPORTED IN SOUTHEAST WYOMING WITH THESE STORMS EARLIER THIS AFTERNOOHN. KOSEL
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 4:09 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Scotts Bluff | 56 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1987Every severe thunderstorm warning in 1987
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.