Alert archive / South Dakota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 4, NWS Rapid City, SD

May 1, 2001Butte County, Harding County, South Dakota

NWS Rapid City, SD issued this severe thunderstorm warning at May 1, 2001, 2:51 AM MDT for Butte County, Harding County, South Dakota. It was in force for 54 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: May 1, 2001, 2:51 AM MDT (08:51 UTC)
Expired: May 1, 2001, 3:45 AM MDT
In force: 54 min
Issued by: NWS Rapid City, SD
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Butte County, SD, Harding County, SD

The radar

The Rapid City radar (KUDX), 135 km from the middle of the area, began a volume at 08:37 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
May 1, 3:19 AM MDT	Thunderstorm Wind 60 E	Belle Fourche, SD

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 May 1, 2:45 AM MDT, 6 minutes earlier.

Area forecast discussion, May 1, 2:45 AM MDT, 6 minutes before

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
245 AM MDT TUE MAY 1 2001

IMMEDIATE PROBLEM SVR WX IN FAR WRN PTN OF THE CWA. WND SPD TREND IS
DOWN WITH SHR RECORDING 60 KTS...GCC RECORDING 52 KTS AND 2WX
RECORDING 48 KTS. FEEL CONVECTION IS WEAKENING AND WNDS DECREASING
AS CD POOL SPREADS OUT...NOT JUST AN ILLUSION OF THE RADAR HOLE.
WILL WORD -SHRA ENDING N EARLY. OTHERWISE...MDLS AGREE WITH PRETTY
GOOD WNDS TODAY BEHIND CD FNT. LLVL AGEO AND GEO WINDS OPPOSE EACH
OTHER...SO NOT CONCERNED ABOUT WARNING CRITERIA WNDS...BUT WILL GO
WITH ADVY ALONG AND N OF I90 IN SD TODAY. AFTER THAT...MAIN PROBLEM
WILL BE WK -SHRA IN RATHER CD UNSTABLE AIR. CAPES LOOK WK...BUT DEEP
ENOUGH TO SUPPORT -SHRA WITH AN ISOLATED --TSRA OVER THE BLK HLS
THIS AFTERNOON AND SOUTH WED AFTERNOON AND EVE. WILL GO GENERALLY
WITH GUIDANCE TEMPS AS THEY LOOK REASONABLE. AT 60 HRS ETA DOESN'T e
HAVE SW US LOW CLOSED...BUT WITHOUT AN UPSTREAM KICKER...WOULDN'T BE
SURPRISED IF AVN IS CORRECT IN CLOSING IT OFF...MEANING WEEKEND WILL
LIKELY BE WET AS THE WAVE MEANDERS INTO PLAINS.

.UNR...NONE.
BAILEY

The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 3:04 AM MDT	Severe Thunderstorm Warning	UNR	Lawrence	56 min
May 1, 3:22 AM MDT	Severe Thunderstorm Warning	UNR	Meade, Perkins	68 min
May 1, 3:42 AM MDT	Severe Thunderstorm Warning	UNR	Pennington	63 min
May 1, 1:45 AM MDT	Severe Thunderstorm Warning	UNR	Campbell	60 min
May 1, 1:50 AM MDT	Severe Thunderstorm Warning	UNR	Crook	40 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 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.