Alert archive / Nebraska / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 103, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 15, 1993, 6:01 PM MDT for Dawes County, Sioux County, Nebraska. It was in force for 44 min.
The area
The counties it named.
The facts
- Issued
- Jul 15, 1993, 6:01 PM MDT (00:01 UTC)
- Expired
- Jul 15, 1993, 6:45 PM MDT
- In force
- 44 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
Counties Dawes County, NE, Sioux County, NE
The nearest sounding before it
Rapid City, SD (KRAP), launched 00:00Z, 0.0 hours before the alert went out and 169 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
- 1766 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 1400 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.7
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, Jul 15, 4:32 PM MDT, 1 hour 29 minutes before
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</html>Special weather statement, Jul 15, 4:32 PM MDT, 1 hour 29 minutes before
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</html>Special weather statement, Jul 15, 4:40 PM MDT, 1 hour 21 minutes before
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</html>Special weather statement, Jul 15, 4:41 PM MDT, 1 hour 20 minutes before
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</html>Special weather statement, Jul 15, 5:52 PM MDT, 9 minutes before
WYZ007-019-050>052-054>058-062-068>073-160100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 552 PM MDT THU JUL 15 1993 ...A TORNADO WATCH IS IN EFFECT FOR FAR EAST WYOMING UNTIL 11 PM WITH A SEVERE THUNDERSTORM WATCH FOR THE REST OF THE NORTHEAST UNTIL 9 PM... A TORNADO WATCH CONTINUES FOR FAR EASTERN WYOMING UNTIL 11 PM THIS EVENING. THIS WATCH INCLUDES THE CITIES OF CHEYENNE...LUSK...NEWCASTLE ...MOORCROFT...SUNDANCE...TORRINGTON AND WHEATLAND. IN ADDITION...A SEVERE THUNDERSTORM WATCH CONTINUES FOR NORTHEAST WYOMING UNTIL 9 PM THIS EVENING. THIS WATCH INCLUDES THE CITIES OF BUFFALO...GILLETTE...AND SHERIDAN. AS OF 545 PM MDT...NO SEVERE WEATHER HAD OCCURED IN EITHER WATCH AREA. HOWEVER...THE POSSIBILITY STILL EXISTS FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS. < PEOPLE IN EXTREME EASTERN WYOMING AS WELL AS THE NORTHEAST SHOULD STAY ALERT TO CHANGING WEATHER CONDITIONS. STAY TUNED TO LOCAL BROADCAST MEDIA OR NOAA WEATHER RADIO FOR CURRENT INFORMATION ON ANY SEVERE WEATHER DEVELOPMENT. WCJIN-WYSE-WYNE DJV
Special weather statement, Jul 15, 5:52 PM MDT, 9 minutes before
WYZ007-019-050>052-054>058-062-068>073-160100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 552 PM MDT THU JUL 15 1993 ...A TORNADO WATCH IS IN EFFECT FOR FAR EAST WYOMING UNTIL 11 PM WITH A SEVERE THUNDERSTORM WATCH FOR THE REST OF THE NORTHEAST UNTIL 9 PM... A TORNADO WATCH CONTINUES FOR FAR EASTERN WYOMING UNTIL 11 PM THIS EVENING. THIS WATCH INCLUDES THE CITIES OF CHEYENNE...LUSK...NEWCASTLE ...MOORCROFT...SUNDANCE...TORRINGTON AND WHEATLAND. IN ADDITION...A SEVERE THUNDERSTORM WATCH CONTINUES FOR NORTHEAST WYOMING UNTIL 9 PM THIS EVENING. THIS WATCH INCLUDES THE CITIES OF BUFFALO...GILLETTE...AND SHERIDAN. AS OF 545 PM MDT...NO SEVERE WEATHER HAD OCCURED IN EITHER WATCH AREA. HOWEVER...THE POSSIBILITY STILL EXISTS FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS. < PEOPLE IN EXTREME EASTERN WYOMING AS WELL AS THE NORTHEAST SHOULD STAY ALERT TO CHANGING WEATHER CONDITIONS. STAY TUNED TO LOCAL BROADCAST MEDIA OR NOAA WEATHER RADIO FOR CURRENT INFORMATION ON ANY SEVERE WEATHER DEVELOPMENT. WCJIN-WYSE-WYNE DJV
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 6:46 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 44 min |
| Jul 15, 7:30 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 45 min |
| Jul 15, 7:53 PM MDT | Flash Flood Warning | CYS | Dawes | 3 hr |
| Jul 15, 8:16 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 44 min |
| Jul 15, 8:31 PM MDT | Tornado Warning | CYS | Dawes | 29 min |
| Jul 16, 5:56 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte | 34 min |
| Jul 15, 6:25 PM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 50 min |
| Jul 16, 5:29 PM MDT | Tornado Warning | CYS | Goshen | 15 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1993Every severe thunderstorm warning in 1993
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.