Alert archive / Nebraska / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 21, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 1, 1997, 6:31 PM MDT for Kimball County, Nebraska. It was in force for 49 min. 4 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, 1997, 6:31 PM MDT (00:31 UTC)
- Expired
- Jun 1, 1997, 7:20 PM MDT
- In force
- 49 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Kimball County, NE
The radar
The Cheyenne radar (KCYS), 91 km from the middle of the area, began a volume at 00:31 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 |
|---|---|---|---|
| Jun 1, 6:43 PM MDT | Hail 1.75 | Kimball, NE | |
| Jun 1, 6:46 PM MDT | Tornado F0 | Kimball, NE | Brief touchdown occurred 2S of I-80 mile post 18 in open country. |
| Jun 1, 7:04 PM MDT | Tornado F0 | Kimball, NE | Brief touchdown occurred 3SSE of I-80 mile post 18 in open country. |
| Jun 1, 7:10 PM MDT | Hail 1.75 | Kimball, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 1, 4:45 PM MDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 0.5 hours before the alert went out and 153 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
- 1114 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 2528 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCYS 020032 RRA SVRCYS NEC105-020120- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 631 PM MDT SUN JUN 1 1997 * SEVERE THUNDERSTORM WARNING FOR CENTRAL AND EASTERN KIMBALL COUNTY IN WESTERN NEBRASKA PANHANDLE * UNTIL 720 PM MDT * SOME LOCATIONS AFFECTED KIMBALL MUNICIPAL FIELD BY 636 PM MDT KIMBALL BY 637 PM MDT INTERSECTION OF 80 AND 71 BY 638 PM MDT GOTTE PARK BY 640 PM MDT DIX BY 702 PM MDT * AT 629 PM MDT...A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR 3 MILES WEST OF KIMBALL MOVING EAST AT 25 MPH. A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. LARGE HAIL IS LIKELY WITH THIS STORM. SEEK SHELTER INSIDE A STURDY BUILDING AWAY FROM ALL WINDOWS UNTIL THE STORM PASSES. JMH
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 6:50 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 45 min |
| Jun 1, 7:12 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 23 min |
| Jun 1, 7:38 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 37 min |
| Jun 2, 4:00 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff | 35 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1997Every severe thunderstorm warning in 1997
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.