Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 91, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 1, 1990, 8:07 PM MDT for Sheridan County, Nebraska. It was in force for 38 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
- Aug 1, 1990, 8:07 PM MDT (02:07 UTC)
- Expired
- Aug 1, 1990, 8:45 PM MDT
- In force
- 38 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 1, 8:24 PM MDT | Hail 1 | Sheridan, 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 00:00Z, 2.1 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2939 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -57 m²/s²
- 0-3 km storm-relative helicity
- 95 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 020207
SVRBFF
NEC161-020245-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
807 PM MDT WED AUG 1 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 845 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE PANHANDLE OF NEBRASKA
NORTHEAST SHERIDAN
AT 805 PM MDT...A SEVERE THUNDERSTORM WAS 35 MILES EAST OF CHADRON
NEBRASKA...JUST 5 MILES WEST OF GORDON. THE STORM WAS MOVING EAST
AROUND 15 MILES AN HOUR.
THIS WARNING INCLUDES THE CITY OF GORDON NEBRASKA.
PREPARE FOR LARGE HAIL...DAMAGING WIND...HEAVY RAIN AND DANGEROUS
LIGHTNING BY TAKING COVER. STAY AWAY FROM AREAS WHERE LOOSE ITEMS
!CAN BECOME DANGEROUS FLYING DEBRIS.
GIVE REPORTS OF SEVERE WEATHER OR DAMAGE TO A LAW ENFORCEMENT AGENCY
FOR RELAY TO THE NATIONAL 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, Aug 1, 4:06 PM MDT, 4 hours 1 minute before
WYZ012-017-012300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 405 PM MDT WED AUG 1 1990 ...INTENSE THUNDERSTORMS DEVELOPING OVER SOUTHEAST WYOMING... STRONG THUNDERSTORMS WERE DEVELOPING OVER SOUTHEAST WYOMING THIS AFTERNOON. THE MOST INTENSE STORM WAS LOCATED JUST EAST OF CHUGWATER WYOMING OR ABOUT 40 NORTH OF CHEYENNE. THE STORM WAS MOVING TO THE NORTHEAST AT 20 MPH. OTHER STORMS WERE DEVELOPING IN LARAMIE COUNTY ABOUT 20 MILES EAST AND WEST OF THE CITY OF CHEYENNE. EARLIER TODAY PEA-SIZE HAIL AND BRIEF HEAVY RAINS WERE OBSERVED WITH THESE STORMS. PEOPLE IN SOUTHEAST WYOMING SHOULD BE ON THE LOOKOUT FOR POTENTIALLY THREATENING WEATHER. HAIL...DEADLY LIGHTNING] AND HEAVY RAINS ARE POSSIBLE THIS AFTERNOON AND EARLY THIS EVENING IN AND AROUND THESE STORMS. PARKER
Special weather statement, Aug 1, 5:29 PM MDT, 2 hours 38 minutes before
WYZ017-020000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 530 PM MDT WED AUG 1 1990 ...STRONG THUNDERSTORMS IN EASTERN LARAMIE COUNTY... RADAR INDICATED A VERY STRONG THUNDERSTORM JUST WEST OF PINE BLUFFS WYOMING OR ABOUT 35 MILES EAST OF CHEYENNE. THE STORM WILL MOVE INTO THE PINE BLUFFS AREA BETWEEN 530 AND 6 PM. VERY HEAVY RAIN... HAIL...GUSTY WINDS AND FREQUENT LIGHTNING WILL BE WITH THE STORM. PEOPLE IN SOUTHEAST WYOMING SHOULD BE ON THE LOOKOUT FOR POTENTIALLY THREATENING WEATHER. HAIL...DEADLY LIGHTNING AND HEAVY RAINS ARE POSSIBLE THIS AFTERNOON AND EARLY THIS EVENING IN AND AROUND THESE STORMS. SCOTT
Special weather statement, Aug 1, 5:50 PM MDT, 2 hours 17 minutes before
NEZ001-005-011-020115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 450 PM MDT WED AUG 1 1990 ...SEVERE THUNDERSTORM WATCH FOR NEBRASKA PANHANDLE UNTIL 10 PM MDT... AT 448 PM MDT...THUNDERSTORMS WERE SCATTERED OVER THE NORTHERN AND WESTERN PORTIONS OF THE NEBRASKA. THE STRONGEST STORMS WERE LOCATED 20 MILES SOUTHEAST OF CHADRON NEAR HAY SPRINGS NEBRASKA...AND 10 MILES NORTHWEST OF CHADRON TO THE NORTHWEST OF THE AIRPORT. THE STORMS WERE MOVING EAST AROUND 15 MILES AN HOUR. OTHER SHOWERS AND THUNDERSTORMS WERE SCATTERED OVER THE WESTERN AND SOUTHWEST NEBRASKA PANHANDLE...EASTERN WYOMING...SOUTHERN SOUTH DAKOTA... AND NORTHERN COLORADO. SEVERE THUNDERSTORM WATCH 8644 REMAINS IN EFFECT FOR ALL OF THE NEBRASKA PANHANDLE UNTIL 10 PM MDT WEDNESDAY EVENING. PFEIFFER
Special weather statement, Aug 1, 7:09 PM MDT, 58 minutes before
NEZ002-010230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE VALENTINE NE ISSUED BY SCOTTSBLUFF NE 707 PM MDT WED AUG 1 1990 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR CHERRY COUNTY UNTIL 1000 PM MDT... AT 705 PM MDT...RADAR INDICATED A STRONG THUNDERSTORM 4 MILES WEST OF MERRIMAN NEBRASKA...OR 62 MILES WEST OF VALENTINE IN THE NORTHWEST CORNER OF CHERRY COUNTY OF NORTHCENTRAL NEBRASKA. THE STORM WAS MOVING EAST AT 15 MPH. BRIEF HEAVY RAIN...STRONG WINDS AND SMALL HAIL ARE POSSIBLE WITH THE STORM AS IT MOVES ACROSS NORTHWEST CHERRY COUNTY UNTIL 830 PM MDT. PLISCHKE
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 6:26 PM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 48 min |
| Aug 1, 6:42 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 32 min |
| Aug 1, 7:14 PM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 36 min |
| Aug 2, 5:23 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte | 67 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.