Alert archive / Nebraska / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 51, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 20, 1997, 6:24 PM MDT for Kimball County, Nebraska. It was in force for 46 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 20, 1997, 6:24 PM MDT (00:24 UTC)
- Expired
- Jun 20, 1997, 7:10 PM MDT
- In force
- 46 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 00:23 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 20, 6:35 PM MDT | Hail 1.75 | Dix, 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 20, 2:30 PM MDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 0.4 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
- 138 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 3791 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
458 WUUS1 KCYS 210026 RRA SVRCYS NEC105-210110- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 624 PM MDT FRI JUN 20 1997 * SEVERE THUNDERSTORM WARNING FOR CENTRAL AND EASTERN KIMBALL COUNTY IN WESTERN NEBRASKA PANHANDLE * UNTIL 710 PM MDT * SOME AFFECTED LOCATIONS INCLUDE KIMBALL DIX * AT 622 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED 10 MILES EAST OF KIBALL... JUST NORTH OF DIX. A SECOND SEVERE THUNDERSTORM WAS LOCATED 2 MILES WEST OF KIMBALL. THESE STORM WERE MOVING EAST AT 25 MPH. A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. THIS IS A DANGEROUS STORM. DO NOT GO OUTDOORS. DMM
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 20, 2:29 PM MDT, 3 hours 55 minutes before
WYZ060-068-NEZ001>003-019>021-054-055-210300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 230 PM MDT FRI JUN 20 1997 A TORNADO WATCH HAS BEEN ISSUED FOR THE NEBRASKA PANHANDLE AND PARTS OF SOUTHEAST WYOMING AND IS VALID UNTIL 9 PM. COUNTIES IN THE PANHANDLE INCLUDE SIOUX...DAWES...BOX BUTTE...MORRILL ...CHEYENNE...SCOTTS BLUFF...BANNER AND KIMBALL. SOME CITIES INCLUDED IN THE WATCH ARE HARRISON...CHADRON...ALLIANCE...BRIDGEPORT...SIDNEY ...KIMBALL...HARRISBURG...AND SCOTTSBLUFF/GERING. COUNTIES IN WYOMING INCLUDED IN THE WATCH ARE GOSHEN...AND SOUTHERN NIOBRARA. SOME CITIES AND TOWNS IN THE WATCH ARE LUSK...AND TORRINGTON. A MOIST AND UNSTABLE AIRMASS IS IN PLACE OVER SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE. AN UPPER LEVEL DISTURBANCE MOVING THROUGH THE AREA WILL RESULT IN SOME STRONG THUNDERSTORMS. SOME OF THESE STORMS COULD COULD PRODUCE LARGE HAIL AND TORNADOES ALONG WITH HEAVY RAIN. PEOPLE IN THE WATCH AREA SHOULD BE ALERT TO APPROACHING STORMS AND BE PREPARED TO SEEK SHELTER. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL TELEVISION AND RADIO STATIONS AS WELL AS YOUR CABLE TELEVISION PROVIDER FOR LATER STATEMENTS AND WARNING. WCJIN-WYNE-WYSE LRE
Special weather statement, Jun 20, 2:30 PM MDT, 3 hours 54 minutes before
WYZ060-068-NEZ001>003-019>021-054-055-210300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 230 PM MDT FRI JUN 20 1997 A TORNADO WATCH HAS BEEN ISSUED FOR THE NEBRASKA PANHANDLE AND PARTS OF SOUTHEAST WYOMING AND IS VALID UNTIL 9 PM. COUNTIES IN THE PANHANDLE INCLUDE SIOUX...DAWES...BOX BUTTE...MORRILL ...CHEYENNE...SCOTTS BLUFF...BANNER AND KIMBALL. SOME CITIES INCLUDED IN THE WATCH ARE HARRISON...CHADRON...ALLIANCE...BRIDGEPORT...SIDNEY ...KIMBALL...HARRISBURG...AND SCOTTSBLUFF/GERING. COUNTIES IN WYOMING INCLUDED IN THE WATCH ARE GOSHEN...AND SOUTHERN NIOBRARA. SOME CITIES AND TOWNS IN THE WATCH ARE LUSK...AND TORRINGTON. A MOIST AND UNSTABLE AIRMASS IS IN PLACE OVER SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE. AN UPPER LEVEL DISTURBANCE MOVING THROUGH THE AREA WILL RESULT IN SOME STRONG THUNDERSTORMS. SOME OF THESE STORMS COULD COULD PRODUCE LARGE HAIL AND TORNADOES ALONG WITH HEAVY RAIN. PEOPLE IN THE WATCH AREA SHOULD BE ALERT TO APPROACHING STORMS AND BE PREPARED TO SEEK SHELTER. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL TELEVISION AND RADIO STATIONS AS WELL AS YOUR CABLE TELEVISION PROVIDER FOR LATER STATEMENTS AND WARNING. WCJIN-WYNE-WYSE LRE
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 6:18 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 47 min |
| Jun 20, 8:59 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 31 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.