Alert archive / South Dakota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 9, NWS Rapid City, SD

May 9, 2001Custer County, Fall River County, South Dakota

NWS Rapid City, SD issued this severe thunderstorm warning at May 9, 2001, 5:00 PM MDT for Custer County, Fall River County, South Dakota. It was in force for 60 min. 5 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: May 9, 2001, 5:00 PM MDT (23:00 UTC)
Expired: May 9, 2001, 6:00 PM MDT
In force: 60 min
Issued by: NWS Rapid City, SD
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Custer County, SD, Fall River County, SD

What was reported inside it

Time	Report	Where
May 9, 5:00 PM MDT	Hail 1	Pringle, SD
May 9, 5:05 PM MDT	Hail 0.75	Wind Cave, SD
May 9, 5:10 PM MDT	Hail 0.75	Wind Cave, SD
May 9, 5:30 PM MDT	Hail 0.75	Oral, SD
May 9, 5:35 PM MDT	Hail 0.75	Buffalo Gap, 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 9, 2:50 PM MDT, 2 hours 10 minutes earlier.

Area forecast discussion, May 9, 2:50 PM MDT, 2 hours 10 minutes before

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
250 PM MDT WED MAY 9 2001

MDLS IN FAIR AGREEMENT TDY BUT DIFFER ON TIMING OF WAVES IN THE FAST
ZONAL FLOW. 18Z RUC WAS CLOSER TO AVN THAN ETA WITH VORT MVG INTO
PAC NW AND THE ETA ALSO LKS A LTL COOL WITH TEMPS...SO WL FOLLOW AVN
FOR FCST. TNGT A WEAK COLD FNT MOVES THRU SRN COUNTIES ALONG WITH A
WEAK VORT. DEW POINTS STILL IN THE MID TO UPR 40S THERE AND THINK A
FEW SHWRS AND TSMS POSSIBLE THIS EVE. A SECOND WAVE WL MOV THRU THE
NORTH AFTER MIDNIGHT. MOISTURE WL INCRS AS WL. SHLD BE ENOUGH TO GET
A FEW SHOWERS TO DVLP HERE AS WL.

TMRW THE WAVE MVG INTO PAC NW WL MV INTO NE WY AND NW SD. THIS WAVE
IS MUCH MORE IMPRESSIVE THAN THE ONES TNGT. AMPLE MOISTURE WL BE IN
PLACE AS WINDS WL BE FM THE E-NE HELPING TO ADVECT SOME OF THE MID
40 TO NEAR 50 DEW POINTS INTO AREA. SHLD STILL GET SOME GD HEATING
TO DESTABILIZE ATMOSPHERE AND AGREE WITH SPC ON SLT RSK...THINK
EXPANDING IT A LTL MORE E MIGHT BE NECESSARY. WAVE WL CONTINUE TO
MOV THRU CWA TMRW EVE AND WL KEEP CHC POPS N AND E...ISOLD S. WL BE
IN BETWEEN A LO TO THE S AND HI TO THE N...SO EXPECT LT WINDS AND
TEMPS TO FALL INTO THE 40S WITH 30S IN THE HILLS.

FRI AND FRI NIGHT HI PRESSURE BUILDS INTO REGION WITH DRY CONDS
EXPECTED. SOUTHERLY FLO WL HELP TO BRING BACK WARMER TEMPS FOR
WEEKEND.

IN THE EXTENDED...RIDGE CONTS TO REBUILD SAT WITH A WAVE BREAKING IT
DOWN AND BRINGING A CHC FOR TSMS SUN. FOR EARLY NEXT WEEK...RDG
BUILDS UP AGAIN...BUT FURTHER W AND WL NOT GET THE REAL WARM
TEMPERATURES INTO THE AREA...BUT IT WL BE NEAR NORMAL WITH DRY CONDS.

.UNR...NONE>.

JMG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 4:12 PM MDT	Severe Thunderstorm Warning	UNR	Custer	48 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.