Alert archive / South Dakota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 137, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 13, 2012, 5:56 PM CDT for Brule County, South Dakota. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 13, 2012, 5:56 PM CDT (22:56 UTC)
- Expired
- Jun 13, 2012, 6:45 PM CDT
- In force
- 49 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 70.0 mph
County Brule County, SD
The radar
The Aberdeen radar (KABR), 203 km from the middle of the area, began a volume at 22:57 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.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 10.9 hours before the alert went out and 147 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 12 J/kg
- Mixed-layer CIN
- -216 J/kg
- Mixed-layer LCL
- 899 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
339
WUUS53 KFSD 132256
SVRFSD
SDC015-132345-
/O.NEW.KFSD.SV.W.0137.120613T2256Z-120613T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
556 PM CDT WED JUN 13 2012
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN BRULE COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...
* UNTIL 645 PM CDT
* AT 556 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM
WAS LOCATED 8 MILES SOUTH OF OACOMA...OR 9 MILES SOUTHWEST OF
CHAMBERLAIN...AND MOVING NORTHEAST AT 20 MPH. ANOTHER STORM WAS
LOCATED NEAR CHAMBERLAIN...AND WAS MOVING NORTHEAST AT 20 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
CHAMBERLAIN AROUND 615 PM CDT...
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE PUKWANA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 4371 9941 4377 9942 4382 9935 4387 9932
4390 9937 4394 9935 4394 9917 4365 9901
4358 9935 4365 9937 4366 9947 4367 9948
TIME...MOT...LOC 2256Z 240DEG 19KT 4369 9940
WIND...HAIL 70MPH 1.25IN
$$
CHAPMAN2 follow-up statements
158
WWUS53 KFSD 132319
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
619 PM CDT WED JUN 13 2012
SDC015-132345-
/O.CON.KFSD.SV.W.0137.000000T0000Z-120613T2345Z/
BRULE SD-
619 PM CDT WED JUN 13 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN BRULE
COUNTY UNTIL 645 PM CDT...
AT 619 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES
SOUTH OF OACOMA...OR 6 MILES SOUTH OF CHAMBERLAIN...MOVING EAST AT 15
MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
RURAL AREAS SOUTHEAST OF CHAMBERLAIN AROUND 630 PM CDT...
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE PUKWANA.
AT 612 PM CDT...DIME SIZE HAIL WAS REPORTED BY LAW ENFORCEMENT AT
EXIT 264 ON INTERSTATE 90 NEAR CHAMBERLAIN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 4371 9941 4377 9942 4382 9935 4387 9932
4390 9937 4394 9935 4394 9917 4365 9901
4358 9935 4365 9937 4366 9947 4367 9948
TIME...MOT...LOC 2318Z 252DEG 12KT 4372 9935
WIND...HAIL 60MPH 1.00IN
$$117
WWUS53 KFSD 132342
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
642 PM CDT WED JUN 13 2012
SDC015-132353-
/O.EXP.KFSD.SV.W.0137.000000T0000Z-120613T2345Z/
BRULE SD-
642 PM CDT WED JUN 13 2012
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN BRULE COUNTY WILL
EXPIRE AT 645 PM CDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY...HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.
LAT...LON 4371 9941 4377 9942 4382 9935 4387 9932
4390 9937 4394 9935 4394 9917 4365 9901
4358 9935 4365 9937 4366 9947 4367 9948
TIME...MOT...LOC 2343Z 252DEG 12KT 4375 9924
$$
CHAPMANThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 6:22 PM CDT | Severe Thunderstorm Warning | FSD | Jerauld | 23 min |
| Jun 13, 6:47 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 43 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2012Every severe thunderstorm warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.