Alert archive / Nebraska / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 22, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 1, 1997, 6:50 PM MDT for Cheyenne County, Nebraska. It was in force for 45 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 1, 1997, 6:50 PM MDT (00:50 UTC)
- Expired
- Jun 1, 1997, 7:35 PM MDT
- In force
- 45 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 00:52 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, 7:45 PM MDT | Thunderstorm Wind 50 | Sidney, 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, 0.8 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
- 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
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 1, 2:45 PM MDT, 4 hours 5 minutes before
WYZ059>060-020000- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 245 PM MDT SUN JUN 1 1997 ...SEVERE THUNDERSTORM WATCH FOR EAST CENTRAL WYOMING UNTIL 9 PM THIS EVENING... A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR EAST CENTRAL WYOMING AND IS VALID UNTIL 9 PM THIS SUNDAY EVENING. THE COUNTIES IN EAST CENTRAL WYOMING INCLUDED IN THIS WATCH ARE CONVERSE AND NIOBRARA. SOME TOWNS INCLUDED IN THE WATCH ARE DOUGLAS AND LUSK. THE AIRMASS OVER EAST CENTRAL WYOMING IS MOIST AND UNSTABLE. A COLD FRONT APPROACHING THE AREA ALONG WITH GOOD SURFACE HEATING WILL HELP LIFT THIS UNSTABLE AIR TO FORM STRONG THUNDERSTORMS THIS AFTERNOON AND EVENING. SOME OF THESE WILL LIKELY BECOME SEVERE...PRODUCING THREE QUARTER INCH DIAMETER HAIL OR LARGER AND WIND GUSTS GREATER THAN 55 MPH. PEOPLE IN EAST CENTRAL WYOMING SHOULD BE ALERT TO APPROACHING STORMS. LISTEN TO NOAA WEATHER RADIO...LOCAL TELEVISION AND YOUR CABLE TELEVISION PROVIDER FOR POSSIBLE WARNINGS AND BE PREPARED TO SEEK SHELTER. REPORT ANY LARGE DAMAGING HAIL OR DAMAGING WIND GUSTS TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. WCJIN-WYNE JMH
Special weather statement, Jun 1, 2:49 PM MDT, 4 hours 1 minute before
WYZ059>060-020000- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 245 PM MDT SUN JUN 1 1997 ...SEVERE THUNDERSTORM WATCH FOR EAST CENTRAL WYOMING UNTIL 9 PM THIS EVENING... A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR EAST CENTRAL WYOMING AND IS VALID UNTIL 9 PM THIS SUNDAY EVENING. THE COUNTIES IN EAST CENTRAL WYOMING INCLUDED IN THIS WATCH ARE CONVERSE AND NIOBRARA. SOME TOWNS INCLUDED IN THE WATCH ARE DOUGLAS AND LUSK. THE AIRMASS OVER EAST CENTRAL WYOMING IS MOIST AND UNSTABLE. A COLD FRONT APPROACHING THE AREA ALONG WITH GOOD SURFACE HEATING WILL HELP LIFT THIS UNSTABLE AIR TO FORM STRONG THUNDERSTORMS THIS AFTERNOON AND EVENING. SOME OF THESE WILL LIKELY BECOME SEVERE...PRODUCING THREE QUARTER INCH DIAMETER HAIL OR LARGER AND WIND GUSTS GREATER THAN 55 MPH. PEOPLE IN EAST CENTRAL WYOMING SHOULD BE ALERT TO APPROACHING STORMS. LISTEN TO NOAA WEATHER RADIO...LOCAL TELEVISION AND YOUR CABLE TELEVISION PROVIDER FOR POSSIBLE WARNINGS AND BE PREPARED TO SEEK SHELTER. REPORT ANY LARGE DAMAGING HAIL OR DAMAGING WIND GUSTS TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. WCJIN-WYNE JMH
Special weather statement, Jun 1, 4:49 PM MDT, 2 hours 1 minute before
NEZ001>003-019>021-054-055-WYZ067>070-012345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 449 PM MDT SUN JUN 1 1997 ...A TORNADO WATCH HAS BEEN POSTED FOR SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE UNTIL 11 PM... THE WATCH INCLUDES ALL OF PLATTE...GOSHEN AND LARAMIE COUNTIES OF SOUTHEAST WYOMING...AS WELL AS ALL OF THE COUNTIES IN THE NEBRASKA PANHANDLE. IT WILL BE IN EFFECT UNTIL 11 PM. STRONG THUNDERSTORMS HAVE DEVELOPED IN THE AREA LATE THIS AFTERNOON ...WITH MOST STORMS MOVING EAST OR NORTHEAST AT 20 TO 25 MPH. WITH WARM...MOIST AIR IN PLACE ACROSS THE REGION...SOME OF THESE STORMS WILL BECOME SEVERE...AND COULD EVEN PRODUCE AN ISOLATED TORNADO. PEOPLE IN SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE SHOULD REMAIN ALERT TO STORMS APPROACHING YOUR AREA. LISTEN TO NOAA WEATHER RADIO ...LOCAL TELEVISION AND YOUR CABLE TELEVISION PROVIDER FOR POSSIBLE WARNINGS AND BE READY TO MOVE TO A SAFE LOCATION QUICKLY. REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. WCJIN-WYSE JAD
Special weather statement, Jun 1, 4:50 PM MDT, 2 hours before
NEZ001>003-019>021-054-055-WYZ067>070-012345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 449 PM MDT SUN JUN 1 1997 ...A TORNADO WATCH HAS BEEN POSTED FOR SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE UNTIL 11 PM... THE WATCH INCLUDES ALL OF PLATTE...GOSHEN AND LARAMIE COUNTIES OF SOUTHEAST WYOMING...AS WELL AS ALL OF THE COUNTIES IN THE NEBRASKA PANHANDLE. IT WILL BE IN EFFECT UNTIL 11 PM. STRONG THUNDERSTORMS HAVE DEVELOPED IN THE AREA LATE THIS AFTERNOON ...WITH MOST STORMS MOVING EAST OR NORTHEAST AT 20 TO 25 MPH. WITH WARM...MOIST AIR IN PLACE ACROSS THE REGION...SOME OF THESE STORMS WILL BECOME SEVERE...AND COULD EVEN PRODUCE AN ISOLATED TORNADO. PEOPLE IN SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE SHOULD REMAIN ALERT TO STORMS APPROACHING YOUR AREA. LISTEN TO NOAA WEATHER RADIO ...LOCAL TELEVISION AND YOUR CABLE TELEVISION PROVIDER FOR POSSIBLE WARNINGS AND BE READY TO MOVE TO A SAFE LOCATION QUICKLY. REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. WCJIN-WYSE JAD
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 6:31 PM MDT | Severe Thunderstorm Warning | CYS | Kimball | 49 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.