Alert archive / Nebraska / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 51, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 20, 1999, 8:53 PM MDT for Box Butte County, Nebraska. It was in force for 37 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, 1999, 8:53 PM MDT (02:53 UTC)
- Expired
- Jun 20, 1999, 9:30 PM MDT
- In force
- 37 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Box Butte County, NE
The radar
The Cheyenne radar (KCYS), 186 km from the middle of the area, began a volume at 02:54 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, 9:10 PM MDT | Hail 0.75 | Hemingford, NE | 3/4 inch hail reported 4 miles southwest of Hemingford, 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 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.
NWS Cheyenne, WY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 20, 3:00 PM MDT, 5 hours 53 minutes earlier.
Area forecast discussion, Jun 20, 3:00 PM MDT, 5 hours 53 minutes before
SOUTHEAST WYOMING/NEBRASKA PANHANDLE AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 300 PM MDT SUN JUN 20 1999 LAPS SHOWS CAPES OF 3000 PLUS J/KG AND NEG LI OF -8 ALG ERN WY BORDER INTO WRN PTNS OF SD AND NEBRASKA. TSTMS THAT HAVE DVLPD OVER PARTS OF CNTRL AND SRN WY HAVE BEEN RELATIVELY WK. VERY LTL ACTIVITY THUS FAR FROM NERN WY THRU PNHNDL. WITH LTL IN THE WAY OF UPR DYNAMICS IN CWA...WILL GO WITH 20 PERCENT POPS...30 IN MTNS FOR THIS EVENING. MON LOOKS NOT UNLIKE TDA...ALTHOUGH BEST INSTABILITY IS PRGD TO SHIFT FURTHER E INTO NRN PLNS ESPECIALLY BY AVN/NGM. THINK ETA MAY BE BETTER IN KEEPING SOME INSTABILITY ARND IN CWA...BUT 10-20 PERCENT POPS SHOULD BE ENOUGH MON AFTN. STGR SHRTWV TROF WILL SWEEP THRU NRN RCKYS MON NIGHT AND TUE...ALG WITH AN ASSOCD PAC CDFNT WHICH MOVES THRU CWA MON NIGHT/TUE MRNG. THIS WILL BRING POPS BACK TO SCT CATEGORY FOR LATER PDS ALTHOUGH UPR DYNAMICS WILL START SHIFTING E OF CWA LATER TUE AFTN. FAN TEMPS CONT TO LOOK A LTL TOO WARM...PREFER SLGTLY COOLER FWC. .CYS... WY...NONE. NE...NONE. JLH
Nearby
Severe Thunderstorm Warnings in Nebraska, 1999Every severe thunderstorm warning in 1999
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; radar from the NEXRAD Level II archive.