Alert archive / Nebraska / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 93, NWS Cheyenne, WY

August 31, 1999Cheyenne County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 31, 1999, 5:07 PM MDT for Cheyenne County, Nebraska. It was in force for 63 min. 2 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: Aug 31, 1999, 5:07 PM MDT (23:07 UTC)
Expired: Aug 31, 1999, 6:10 PM MDT
In force: 63 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 23:07 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
Aug 31, 5:30 PM MDT	Hail 0.75	Lorenzo, NE	3/4 inch hail reported 8 miles west of Lorenzo,NE
Aug 31, 5:46 PM MDT	Hail 0.75	Sidney, NE	3/4 inch hail reported 23 miles west-southwest of 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 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 Aug 31, 2:55 PM MDT, 2 hours 12 minutes earlier.

Area forecast discussion, Aug 31, 2:55 PM MDT, 2 hours 12 minutes before

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Nearby

Severe Thunderstorm Warnings in Nebraska, 1999 Every 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.