Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 98, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 2, 1998, 7:32 PM MDT for Scotts Bluff County, Nebraska. It was in force for 53 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, 7:32 PM MDT (01:32 UTC)
- Expired
- Jul 2, 1998, 8:25 PM MDT
- In force
- 53 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Scotts Bluff County, NE
The radar
The Cheyenne radar (KCYS), 120 km from the middle of the area, began a volume at 01:31 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, 8:25 PM MDT | Hail 0.75 | Scottsbluff, 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, 1.5 hours before the alert went out and 224 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.
989 WUUS1 KCYS 030134 RRA SVRCYS NEC157-030225- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 732 PM MDT THU JUL 2 1998 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN SCOTTS BLUFF COUNTY IN THE NEBRASKA PANHANDLE * UNTIL 825 PM MDT * AT 730 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES NORTHWEST OF SCOTTSBLUFF...NEAR MITCHELL...MOVING EAST AT 15 MPH. . * THE SEVERE THUNDERSTORM WILL BE NEAR... LAKE MINATARE BY 810 PM. MITCHELL THROUGH 745 PM. DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS WEILAND
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 8:32 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 48 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.