Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 23, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 1, 1990, 4:51 PM MDT for Box Butte County, Sheridan County, Nebraska. It was in force for 54 min. 2 reports 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 1, 1990, 4:51 PM MDT (22:51 UTC)
- Expired
- Jun 1, 1990, 5:45 PM MDT
- In force
- 54 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
Counties Box Butte County, NE, Sheridan County, NE
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 1, 5:07 PM MDT | Hail 1.75 | Box Butte, NE | |
| Jun 1, 5:30 PM MDT | Hail 1.75 | 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, 10.9 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.
- Mixed-layer CAPE
- 996 J/kg
- Mixed-layer CIN
- -232 J/kg
- Mixed-layer LCL
- 1159 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- -7 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 012251
SVRBFF
NEC161-013-012345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
451 PM MDT FRI JUN 1 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 545 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE PANHANDLE OF NEBRASKA
WESTERN SHERIDAN...EXTREME NORTHEAST BOX BUTTE
AT 447 PM MDT...A SEVERE THUNDERSTORM WAS 18 MILES NORTHEAST OF
ALLIANCE NEBRASKA...ALONG THE SHERIDAN/BOX BUTTE COUNTY LINE NEAR
MIRAGE FLATS ON HIGHWAY 87. THE STORM WAS MOVING NORTH AROUND
10 MILES AN HOUR.
THIS WARNING REPLACES THE WARNING ORIGINALLY ISSUED FOR SOUTHERN
SHERIDAN COUNTY.
THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO WARNING...SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO A
PLACE OF SAFETY IF ONE IS SPOTTED.
GIVE REPORTS OF SEVERE WEATHER OR DAMAGE TO A LAW ENFORCEMENT AGENCY
FOR RELAY TO THE NATIONALH WEATHER SERVICE.
PFEIFFERWhat 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, Jun 1, 1:25 PM MDT, 3 hours 26 minutes before
NEZ002-012100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE VALENTINE NE ISSUED BY SCOTTSBLUFF NE 123 PM MDT FRI JUN 1 1990 ...A LINE OF THUNDERSTORMS IS MOVING INTO CHERRY COUTNY OF NORTHCENTRAL NEBRASKA... AT 120 PM MDT...RADAR INDICATED A LINE OF THUNDERSTORMS MOVING INTO CHERRY COUNTY OF NORTHCENTRAL NEBRASKA. THE LINE EXTENDED FROM 18 MILES WEST TO 45 MILES SOUTHWEST OF MERRIMAN NEBRASKA...OR 70 MILES WEST TO 85 MILES SOUTHWEST OF VALENTINE NEBRASKA IN WESTERN CHERRY COUNTY. THE STORMS WERE MOVING NORTH AT 15 MPH. BRIEF HEAVY RAIN...STRONG WIND...AND HAIL ARE POSSIBLE WITH THE THUNDERSTORMS AS THEY MOVE ACROSS WESTERN CHERRY COUNTY OF NORTHCENTRAL NEBRASKA UNTIL 300 PM M0DT. PLISCHKE
Special weather statement, Jun 1, 3:04 PM MDT, 1 hour 47 minutes before
WYZ016-017-012105- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 305 PM MDT FRI JUN 1 1990 ...STRONG THUNDERSTORM ALONG THE LARAMIE MOUNTAIN RANGE... AT 300PM A STRONG THUNDERSTORM WAS ABOUT 20 MILES SOUTHWEST OF HORSE CREEK...OR 30 MILES WEST OF CHEYENNE ALONG THE LARAMIE MOUNTAIN RANGE. THE STORM WAS MOVING NORTH AT 20 MILES AN HOUR AND WILL BE 10 MILES NORTHWEST OF HORSE CREEK BY 400PM. EARLIER SMALL HAIL WAS REPORTED WITH THIS THUNDERSTORM. IN ADDITION TO SMALL HAIL...BRIEF HEAVY RAIN AND GUSTY WINDS SHOULD BE EXPECTED WITH THIS STORM. COX
Special weather statement, Jun 1, 3:39 PM MDT, 1 hour 12 minutes before
WYZALL-012135- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 335 PM MDT FRI JUN 1 1990 ...FROST ADVISORY NORTHERN AND CENTRAL VALLEYS TONIGHT... AN UNSEASONABLY COOL AIRMASS OVER WYOMING WILL BRING A THREAT OF FROST TO THE NORTHERN AND CENTRAL VALLEYS OF WYOMING TONIGHT WHERE A FROST ADVISORY HAS BEEN POSTED. SKIES WILL CLEAR AND WINDS WILL BE LIGHT ENOUGH IN THESE AREAS LATE TONIGHT FOR TEMPERATURES TO PLUMMET TO THE FREEZING MARK OR SLIGHTLY BELOW. LINGERING CLOUDINESS AND/OR WINDS IN THE FAR EAST LATE TONIGHT SHOULD MAKE FROST MORE ISOLATED. PEOPLE IN THE NORTHERN AND CENTRAL PORTIONS WITH FROST SENSITIVE PLANTS SHOULD TAKE PRECAUTIONS TO PROTECT THEM BEFORE NIGHCTFALL. OVERNIGHT AND TODAY UP TO FOUR INCHES OF SNOW ACCUMULATED IN THE BIG HORN MOUNTAINS OF NORTH CENTRAL WYOMING. AN INCH OR TWO OF SNOW...OR ADDITIONAL SNOW....IS POSSIBLE IN THE MOUNTAINS OF THE STATE...MAINLY EARLY TONIGHT. COX
Special weather statement, Jun 1, 3:41 PM MDT, 1 hour 10 minutes before
WYZALL-020430- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE CHEYENNE WY 335 PM MDT FRI JUN 1 1990 ...FROST ADVISORY NORTHERN AND CENTRAL VALLEYS TONIGHT... AN UNSEASONABLY COOL AIRMASS OVER WYOMING WILL BRING A THREAT OF FROST TO THE NORTHERN AND CENTRAL VALLEYS OF WYOMING TONIGHT WHERE A FROST ADVISORY HAS BEEN POSTED. SKIES WILL CLEAR AND WINDS WILL BE LIGHT ENOUGH IN THESE AREAS LATE TONIGHT FOR TEMPERATURES TO PLUMMET TO THE FREEZING MARK OR SLIGHTLY BELOW. LINGERING CLOUDINESS AND/OR WINDS IN THE FAR EAST LATE TONIGHT SHOULD MAKE FROST MORE ISOLATED. PEOPLE IN THE NORTHERN AND CENTRAL PORTIONS WITH FROST SENSITIVE PLANTS SHOULD TAKE PRECAUTIONS TO PROTECT THEM BEFORE NIGHTFALL. OVERNIGHT AND TODAY UP TO FOUR INCHES OF SNOW ACCUMULATED IN THE BIG HORN MOUNTAINS OF NORTH CENTRAL WYOMING. AN INCH OR TWO OF SNOW...OR ADDITIONAL SNOW....IS POSSIBLE IN THE MOUNTAINS OF THE STATE...MAINLY EARLY TONIGHTD. COX
Special weather statement, Jun 1, 3:51 PM MDT, 1 hour before
WYZ016-017-012250- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 350 PM MDT FRI JUN 1 1990 ...CLUSTER OF STRONG THUNDERSTORMS IN SOUTHWEST LARAMIE COUNTY... AT 345PM RADAR SHOWED A CLUSTER OF SEVERAL STRONG THUNDERSTORMS IN SOUTHWEST LARAMIE COUNTY. THE STORMS WERE ABOUT 20 MILES WEST OR SOUTHWEST OF CHEYENNE. THE STORMS WERE MOVING TO THE NORTH AT 20 MILES AN HOUR. THERE HAVE BEEN SEVERAL REPORTS OF SMALL HAIL IN EXTREME WNESTERN LARAMIE COUNTY. IN ADDITION TO HAIL...BRIEF HEAVY RAIN AND GUSTY WINDS SHOULD BE EXPECTED WITH THESE STORMS. COX
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 1:06 PM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 69 min |
| Jun 1, 2:17 PM MDT | Severe Thunderstorm Warning | CYS | Garden | 58 min |
| Jun 1, 2:18 PM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 32 min |
| Jun 1, 3:15 PM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 60 min |
| Jun 1, 3:18 PM MDT | Severe Thunderstorm Warning | CYS | Garden | 22 min |
| Jun 1, 4:16 PM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 59 min |
| Jun 1, 5:33 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 57 min |
| Jun 1, 5:48 PM MDT | Tornado Warning | CYS | Morrill | 27 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1990Every severe thunderstorm warning in 1990
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.