Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 67, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 11, 1998, 3:56 PM MDT for Morrill County, Nebraska. It was in force for 34 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
- Jun 11, 1998, 3:56 PM MDT (21:56 UTC)
- Expired
- Jun 11, 1998, 4:30 PM MDT
- In force
- 34 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Morrill County, NE
The radar
The Cheyenne radar (KCYS), 162 km from the middle of the area, began a volume at 21:58 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 11, 4:05 PM MDT | Hail 1 | Broadwater, NE | A storm produced quarter size hail 3 miles west of Broadwater. |
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.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.9 hours before the alert went out and 206 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1918 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
715 WUUS1 KCYS 112155 RRA SVRCYS NEC123-112230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 356 PM MDT THU JUN 11 1998 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN MORRILL COUNTY IN THE NEBRASKA PANHANDLE * UNTIL 430 PM MDT * AT 353 PM ...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES EAST OF BRIDGEPORT... MOVING SOUTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... BROADWATER BY 405 PM THIS IS A DANGEROUS STORM STAY INDOORS AWAY FROM WINDOWS. JAD
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, Jun 11, 10:10 AM MDT, 5 hours 46 minutes before
WYZ061>070-NEZ001>003-019>021-054-055-120000- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 1010 AM MDT THU JUN 11 1998 THE RISK OF SEVERE WEATHER OVER SOUTHEAST WYOMING AND THE WESTERN NEBRASKA PANHANDLE IS LOW THIS AFTERNOON. SPOTTER ACTIVATION WILL NOT BE REQUIRED THIS AFTERNOON. DISCUSSION...THUNDERSTORMS WILL DEVELOP BY EARLY AFTERNOON IN EAST CENTRAL WYOMING AND THE NORTHERN NEBRASKA PANHANDLE. THIS AREA WILL SLOWLY SPREAD SOUTH DURING THE AFTERNOON AND COVER MUCH OF THE AREA BY 5 PM. THE COVERAGE WILL BE GREATEST FROM DOUGLAS TO CHADRON AND OVER THE NORTHERN LARAMIE RANGE. THUNDERSTORM INTENSITY WILL BE LIMITED BY THE DRY AIR NEAR THE SURFACE. BUT SOME OF THE STRONGER STORMS WILL PRODUCE SMALL HAIL...WIND GUSTS TO 45 MPH AND HEAVY RAIN. WCJIN-WYNE-WYSE WEILAND
Special weather statement, Jun 11, 10:10 AM MDT, 5 hours 46 minutes before
WYZ061>070-NEZ001>003-019>021-054-055-120000- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 1010 AM MDT THU JUN 11 1998 THE RISK OF SEVERE WEATHER OVER SOUTHEAST WYOMING AND THE WESTERN NEBRASKA PANHANDLE IS LOW THIS AFTERNOON. SPOTTER ACTIVATION WILL NOT BE REQUIRED THIS AFTERNOON. DISCUSSION...THUNDERSTORMS WILL DEVELOP BY EARLY AFTERNOON IN EAST CENTRAL WYOMING AND THE NORTHERN NEBRASKA PANHANDLE. THIS AREA WILL SLOWLY SPREAD SOUTH DURING THE AFTERNOON AND COVER MUCH OF THE AREA BY 5 PM. THE COVERAGE WILL BE GREATEST FROM DOUGLAS TO CHADRON AND OVER THE NORTHERN LARAMIE RANGE. THUNDERSTORM INTENSITY WILL BE LIMITED BY THE DRY AIR NEAR THE SURFACE. BUT SOME OF THE STRONGER STORMS WILL PRODUCE SMALL HAIL...WIND GUSTS TO 45 MPH AND HEAVY RAIN. WCJIN-WYNE-WYSE WEILAND
Nearby
Severe Thunderstorm Warnings in Nebraska, 1998Every severe thunderstorm warning in 1998
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; radar from the NEXRAD Level II archive.