Alert archive / Wyoming / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 155, NWS Rapid City, SD

July 9, 2001Crook County, Wyoming

NWS Rapid City, SD issued this severe thunderstorm warning at Jul 9, 2001, 4:17 PM MDT for Crook County, Wyoming. It was in force for 43 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: Jul 9, 2001, 4:17 PM MDT (22:17 UTC)
Expired: Jul 9, 2001, 5:00 PM MDT
In force: 43 min
Issued by: NWS Rapid City, SD
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Crook County, WY

The radar

The Rapid City radar (KUDX), 148 km from the middle of the area, began a volume at 22:20 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
Jul 9, 4:30 PM MDT	Thunderstorm Wind 52 E	Moorcroft, WY

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 Rapid City, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 9, 3:00 PM MDT, 1 hour 17 minutes earlier.

Area forecast discussion, Jul 9, 3:00 PM MDT, 1 hour 17 minutes before

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In the hours before

Local storm report, Jul 9, 10:33 AM MDT, 5 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
1033 AM MDT MON JUL 09 2001

TIME(MDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0530 PM    7 SW CUSTER               SD   WIND DAMAGE
07/08/01   CUSTER                         STRAIGHT-LINE WINDS
                                          DOWNED APPROXIMATELY
                                          2000 TREES ON NATIONAL
                                          FOREST PROPERTY. PEA
                                          SIZE HAIL ACCUMULATED
                                          TO THREE INCHES DEEP.
                                          ALSO, 15 PEOPLE WERE
                                          EVACUATED DUE TO
                                          PROPANE TANKS BEING
                                          LOSE. REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Bunkers

Special weather statement, Jul 9, 10:55 AM MDT, 5 hours 22 minutes before

SDZ026>031-041-042-WYZ055-058-091945-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
1055 AM MDT MON JUL 9 2001

...SLIGHT RISK OF SEVERE THUNDERSTORMS...

THUNDERSTORMS ARE EXPECTED OVER NORTHEASTERN WYOMING AND WESTERN
SOUTH DAKOTA THIS AFTERNOON AND EVENING...WITH A SLIGHT RISK OF
SEVERE THUNDERSTORMS OVER SOUTHWESTERN SOUTH DAKOTA AND NORTHEASTERN
WYOMING. THE MAIN THREAT FROM THE SEVERE THUNDERSTORMS WILL BE HAIL
LARGER THAN 3/4 INCH AND DAMAGING WINDS.

.DISCUSSION...
A WEAK UPPER LEVEL DISTURBANCE PUSHING THROUGH A MOIST AIRMASS IN
PLACE OVER THE REGION WILL TRIGGER SHOWERS AND THUNDERSTORMS.  THE
STORMS WILL DEVELOP IN THE VICINITY OF THE BLACK HILLS EARLY THIS
AFTERNOON AND MOVE EASTWARD ONTO THE PLAINS LATE THIS AFTERNOON AND
INTO THE EVENING HOURS.

COUNTIES INCLUDED IN THIS OUTLOOK ARE SOUTHERN CAMPBELL...WESTON...
CUSTER...PENNINGTON...FALL RIVER AND SHANNON.

uWCJIN-WYNE

T. MURPHY

Local storm report, Jul 9, 12:40 PM MDT, 3 hours 37 minutes before

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The office that day

Everything else NWS Rapid City, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 8, 6:20 PM MDT	Severe Thunderstorm Warning	UNR	Fall River	40 min
Jul 8, 6:50 PM MDT	Severe Thunderstorm Warning	UNR		55 min
Jul 8, 7:00 PM MDT	Severe Thunderstorm Warning	UNR	Fall River	30 min
Jul 8, 7:06 PM MDT	Severe Thunderstorm Warning	UNR	Custer	54 min
Jul 8, 8:47 PM MDT	Severe Thunderstorm Warning	UNR	Fall River	43 min
Jul 8, 9:17 PM MDT	Severe Thunderstorm Warning	UNR		58 min
Jul 9, 12:08 PM MDT	Severe Thunderstorm Warning	UNR	Pennington	67 min
Jul 9, 3:39 PM MDT	Severe Thunderstorm Warning	UNR	Campbell	51 min
Jul 9, 4:48 PM MDT	Severe Thunderstorm Warning	UNR	Campbell	42 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2001 Every severe thunderstorm warning in 2001

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.