Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 101, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 2, 1998, 8:32 PM MDT for Cheyenne County, Nebraska. It was in force for 48 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
- Jul 2, 1998, 8:32 PM MDT (02:32 UTC)
- Expired
- Jul 2, 1998, 9:20 PM MDT
- In force
- 48 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Cheyenne County, NE
The radar
The Cheyenne radar (KCYS), 152 km from the middle of the area, began a volume at 02:32 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 |
|---|---|---|---|
| Jul 2, 9:17 PM MDT | Thunderstorm Wind 52 | Dalton, 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.
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 2.5 hours before the alert went out and 151 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
- 881 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 2918 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
310 WUUS1 KCYS 030231 RRA SVRCYS NEC033-030320- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 832 PM MDT THU JUL 2 1998 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN AND CENTRAL CHEYENNE COUNTY IN THE NEBRASKA PANHANDLE * UNTIL 920 PM MDT * AT 827 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES EAST OF KIMBALL...MOVING EAST AT 15 MPH. WIND GUSTS OVER 60 MPH WERE OCCURING WITH THIS STORM. * THE SEVERE THUNDERSTORM WILL BE NEAR... POTTER THROUGH 850 PM BROWNSON BY 845 PM THIS STORM HAS A HISTORY OF DAMAGING WINDS. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS DMM
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 7:32 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff | 53 min |
| Jul 2, 8:17 PM MDT | Severe Thunderstorm Warning | CYS | Kimball | 43 min |
| Jul 2, 8:24 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff | 46 min |
| Jul 2, 9:00 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 45 min |
| Jul 2, 9:21 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 49 min |
| Jul 2, 9:33 PM MDT | Tornado Warning | CYS | Morrill | 27 min |
| Jul 2, 9:43 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 47 min |
| Jul 2, 10:31 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 44 min |
| Jul 2, 11:12 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | |
| Jul 2, 11:44 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 51 min |
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.