Alert archive / South Dakota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 188, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 3, 2012, 7:23 PM CDT for 6 counties in South Dakota. It was in force for 52 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 3, 2012, 7:23 PM CDT (00:23 UTC)
- Expired
- Aug 3, 2012, 8:15 PM CDT
- In force
- 52 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 80.0 mph
Counties Davison County, SD, Hanson County, SD, Kingsbury County, SD, Lake County, SD, Miner County, SD, Sanborn County, SD
The radar
The Sioux Falls radar (KFSD), 96 km from the middle of the area, began a volume at 00:23 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 3, 7:40 PM CDT | TSTM WND GST 55 | Ssw Oldham, SD | |
| Aug 3, 8:06 PM CDT | TSTM WND DMG | Ramona, SD | TREES DOWN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 3, 2:14 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 0.4 hours before the alert went out and 102 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
- 496 J/kg
- Mixed-layer CIN
- -320 J/kg
- Mixed-layer LCL
- 857 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
343
WUUS53 KFSD 040023
SVRFSD
SDC035-061-077-079-097-111-040115-
/O.NEW.KFSD.SV.W.0188.120804T0023Z-120804T0115Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
723 PM CDT FRI AUG 3 2012
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN DAVISON COUNTY IN SOUTHEAST SOUTH DAKOTA...
NORTHERN HANSON COUNTY IN SOUTHEAST SOUTH DAKOTA...
KINGSBURY COUNTY IN EAST CENTRAL SOUTH DAKOTA...
NORTHWESTERN LAKE COUNTY IN EAST CENTRAL SOUTH DAKOTA...
MINER COUNTY IN EAST CENTRAL SOUTH DAKOTA...
EASTERN SANBORN COUNTY IN EAST CENTRAL SOUTH DAKOTA...
* UNTIL 815 PM CDT
* AT 724 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING HALF
DOLLAR SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 80 MPH.
THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES
SOUTHWEST OF BRYANT TO CARTHAGE TO 11 MILES NORTH OF ARTESIAN TO
LETCHER...AND MOVING EAST AT 35 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
LOOMIS AND DE SMET AROUND 730 PM CDT...
CARTHAGE AND ARTESIAN AROUND 735 PM CDT...
LAKE THOMPSON STATE RECREATION AREA AROUND 740 PM CDT...
LAKE PRESTON AND FEDORA AROUND 745 PM CDT...
BADGER AND ROSWELL AROUND 750 PM CDT...
OLDHAM AND HETLAND AROUND 755 PM CDT...
ARLINGTON AND VILAS AROUND 800 PM CDT...
FARMER AND HOWARD AROUND 805 PM CDT...
OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE ERWIN.
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.
THESE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS!
&&
LAT...LON 4454 9713 4419 9712 4402 9732 4385 9761
4371 9762 4382 9827 4419 9803 4420 9785
4424 9785 4455 9764 4455 9723
TIME...MOT...LOC 0024Z 285DEG 31KT 4450 9753 4422 9770
4417 9793 4388 9812
WIND...HAIL 80MPH 1.25IN
$$2 follow-up statements
895
WWUS53 KFSD 040036
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
736 PM CDT FRI AUG 3 2012
SDC035-061-077-079-097-111-040115-
/O.CON.KFSD.SV.W.0188.000000T0000Z-120804T0115Z/
SANBORN SD-MINER SD-LAKE SD-KINGSBURY SD-HANSON SD-DAVISON SD-
736 PM CDT FRI AUG 3 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
DAVISON...NORTHERN HANSON...KINGSBURY...NORTHWESTERN LAKE...MINER AND
EASTERN SANBORN COUNTIES UNTIL 815 PM CDT...
AT 735 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING HALF DOLLAR SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 80 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 7 MILES NORTH OF LAKE PRESTON TO
9 MILES EAST OF CARTHAGE TO 7 MILES NORTH OF FEDORA TO LOOMIS...
MOVING EAST AT 35 MPH.
IN ADDITION...AT 729 PM CDT...A 79 MPH WIND GUST WAS REPORTED AT
MITCHELL AIRPORT WITH THESE STORMS.
SEVERE THUNDERSTORMS WILL BE NEAR...
BADGER AND FEDORA AROUND 740 PM CDT...
OLDHAM...HETLAND AND ROSWELL AROUND 745 PM CDT...
ARLINGTON AROUND 750 PM CDT...
VILAS AROUND 755 PM CDT...
FARMER...RAMONA AND HOWARD AROUND 800 PM CDT...
WINFRED AROUND 810 PM CDT...
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.
INTENSE SQUALL LINES CAN OCCASSIONALY PRODUCE BRIEF TORNADOES IN
ADDITION TO WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT
IMMEDIATELY LIKELY... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON
THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE
POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.
&&
LAT...LON 4454 9713 4419 9712 4402 9732 4385 9761
4371 9762 4382 9827 4419 9803 4420 9785
4424 9785 4455 9764 4455 9723
TIME...MOT...LOC 0035Z 285DEG 31KT 4445 9729 4418 9749
4409 9777 4380 9797
WIND...HAIL 80MPH 1.25IN
$$
HANKO855
WWUS53 KFSD 040058
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
758 PM CDT FRI AUG 3 2012
SDC035-040108-
/O.CAN.KFSD.SV.W.0188.000000T0000Z-120804T0115Z/
DAVISON SD-
758 PM CDT FRI AUG 3 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DAVISON COUNTY IS
CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.
LAT...LON 4454 9713 4419 9712 4402 9732 4385 9761
4371 9762 4376 9791 4405 9786 4420 9775
4439 9756 4454 9736
TIME...MOT...LOC 0058Z 285DEG 31KT 4436 9707 4417 9725
4408 9753 4378 9778
$$
SDC061-077-079-097-111-040115-
/O.CON.KFSD.SV.W.0188.000000T0000Z-120804T0115Z/
SANBORN SD-MINER SD-LAKE SD-KINGSBURY SD-HANSON SD-
758 PM CDT FRI AUG 3 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
HANSON...EASTERN KINGSBURY...NORTHWESTERN LAKE...MINER AND
SOUTHEASTERN SANBORN COUNTIES UNTIL 815 PM CDT...
AT 758 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ARLINGTON TO OLDHAM TO 5 MILES NORTH OF VILAS TO
FULTON...MOVING EAST AT 35 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
HOWARD AND FARMER AROUND 805 PM CDT...
RAMONA AROUND 810 PM CDT...
WINFRED AROUND 815 PM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WIND. THIS IS AN
EXTREMELY DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
INTENSE SQUALL LINES CAN OCCASSIONALY PRODUCE BRIEF TORNADOES IN
ADDITION TO WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT
IMMEDIATELY LIKELY... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON
THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE
POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.
&&
LAT...LON 4454 9713 4419 9712 4402 9732 4385 9761
4371 9762 4376 9791 4405 9786 4420 9775
4439 9756 4454 9736
TIME...MOT...LOC 0058Z 285DEG 31KT 4436 9707 4417 9725
4408 9753 4378 9778
WIND...HAIL 70MPH <1.00IN
$$
HANKOThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 7:10 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Beadle, Davison, Jerauld, Kingsbury, Sanborn | 50 min |
| Aug 3, 7:46 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Davison, Hanson, Kingsbury, Lake, McCook and 2 more | 44 min |
| Aug 3, 8:23 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Moody | 52 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.