Alert archive / South Dakota / Tornado Warnings in 2010
Tornado Warning 39, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Jul 6, 2010, 7:13 PM CDT for Aurora County, Davison County, Douglas County, South Dakota. It was in force for 47 min. 4 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
- Jul 6, 2010, 7:13 PM CDT (00:13 UTC)
- Expired
- Jul 6, 2010, 8:00 PM CDT
- In force
- 47 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
Counties Aurora County, SD, Davison County, SD, Douglas County, SD
The radar
The Sioux Falls radar (KFSD), 135 km from the middle of the area, began a volume at 00:14 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 6, 7:13 PM CDT | HAIL 1.75 | 4 Wnw Harrison, SD | QUARTER SIZED HAIL WITH A FEW AS LARGE AS GOLF BALLS. |
| Jul 6, 7:25 PM CDT | TORNADO | 4 Wnw Corsica, SD | CORSICA POLICE REPORTED A RAIN WRAPPED TORNADO. |
| Jul 6, 7:27 PM CDT | TORNADO | 3 Ese Harrison, SD | TORNADO ON THE GROUND MOVING EAST. |
| Jul 6, 8:00 PM CDT | HAIL 2.75 | 3 Nne Corsica, SD | MOSTLY GOLF BALL HAIL WITH A FEW AS LARGE AS BASEBALLS. CORN STRIPPED. WINDOWS BROKE OUT OF NORTH AND WEST SIDE OF BUILDINGS. |
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 |
|---|---|---|---|
| Jul 6, 2:23 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 0.2 hours before the alert went out and 161 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1773 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 441 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
544 WFUS53 KFSD 070013 TORFSD SDC003-035-043-070100- /O.NEW.KFSD.TO.W.0039.100707T0013Z-100707T0100Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 713 PM CDT TUE JUL 6 2010 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN AURORA COUNTY IN SOUTHEAST SOUTH DAKOTA... SOUTHWESTERN DAVISON COUNTY IN SOUTHEAST SOUTH DAKOTA... DOUGLAS COUNTY IN SOUTHEAST SOUTH DAKOTA... * UNTIL 800 PM CDT * AT 713 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR HARRISON...OR 19 MILES SOUTH OF PLANKINTON...AND MOVING EAST AT 25 MPH. * THIS TORNADIC STORM WILL BE NEAR... CORSICA AROUND 735 PM CDT... ARMOUR AROUND 745 PM CDT... IN ADDITION TO A TORNADO...THIS STORM HAS BEEN PRODUCING BASEBALL SIZE HAIL. THIS IS A DANGEROUS STORM. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4354 9818 4325 9826 4339 9870 4355 9867 TIME...MOT...LOC 0013Z 280DEG 21KT 4344 9856 $$ MJF
2 follow-up statements
635 WWUS53 KFSD 070029 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 729 PM CDT TUE JUL 6 2010 SDC003-035-043-070100- /O.CON.KFSD.TO.W.0039.000000T0000Z-100707T0100Z/ AURORA SD-DAVISON SD-DOUGLAS SD- 729 PM CDT TUE JUL 6 2010 ...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL DOUGLAS... SOUTHWESTERN DAVISON AND SOUTHEASTERN AURORA COUNTIES UNTIL 800 PM CDT... AT 728 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A CONFIRMED TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR HARRISON...OR 19 MILES NORTH OF LAKE ANDES...MOVING EAST AT 25 MPH. THIS DANGEROUS STORM WILL BE NEAR... CORSICA AROUND 735 PM CDT... ARMOUR AROUND 745 PM CDT... AT 725 PM...LAW ENFORCEMENT REPORTED A RAIN WRAPPED TORNADO ON THE GROUND 4 MILES WEST TO NORTHWEST OF CORSICA. THIS IS A VERY DANGEROUS STORM. IN ADDITION TO THE TORNADO...THIS STORM HAS BEEN PRODUCING GOLF BALL TO BASEBALL SIZED HAIL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4338 9862 4353 9861 4354 9818 4325 9826 TIME...MOT...LOC 0028Z 280DEG 21KT 4342 9844 $$ MJF
165 WWUS53 KFSD 070041 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 741 PM CDT TUE JUL 6 2010 SDC003-035-043-070100- /O.CON.KFSD.TO.W.0039.000000T0000Z-100707T0100Z/ AURORA SD-DAVISON SD-DOUGLAS SD- 741 PM CDT TUE JUL 6 2010 ...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL DOUGLAS... SOUTHWESTERN DAVISON AND EXTREME SOUTHEASTERN AURORA COUNTIES UNTIL 800 PM CDT... AT 740 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A CONFIRMED TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR CORSICA...OR 19 MILES NORTH OF LAKE ANDES...MOVING EAST AT 20 MPH. THIS DANGEROUS STORM WILL BE NEAR... ARMOUR AROUND 750 PM CDT... AT 727 PM...ANOTHER TORNADO TOUCH DOWN WAS CONFIRMED BY A TRAINED SPOTTER 3 MILES EAST TO SOUTHEAST OF HARRISON...OR JUST WEST OF CORSICA. IN ADDITION...ONE INCH HAIL AND 60 MPH WINDS WERE RELAYED WITH THIS REPORT FOR THE SAME LOCATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4336 9852 4351 9850 4353 9819 4325 9826 TIME...MOT...LOC 0040Z 279DEG 19KT 4342 9840 $$ MJF
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 7:30 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 45 min |
| Jul 6, 7:55 PM CDT | Tornado Warning | FSD | Aurora, Davison, Douglas, Hanson, Hutchinson | 26 min |
| Jul 6, 8:05 PM CDT | Tornado Warning | FSD | Aurora, Brule | 30 min |
| Jul 6, 8:10 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule | 30 min |
| Jul 6, 9:02 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule | 28 min |
| Jul 6, 9:38 PM CDT | Flash Flood Warning | FSD | Aurora, Brule | 3 hr |
| Jul 6, 11:17 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 43 min |
| Jul 7, 12:23 AM CDT | Areal Flood Warning | FSD | Aurora, Beadle, Brookings, Davison, Hanson, Jerauld and 5 more | 3 hr |
| Jul 7, 12:38 AM CDT | Severe Thunderstorm Warning | FSD | Brookings | 37 min |
| Jul 7, 1:12 AM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury, Lake, Moody | 33 min |
| Jul 7, 1:41 AM CDT | Severe Thunderstorm Warning | FSD | Brookings, Moody | 34 min |
| Jul 7, 7:16 AM CDT | River Flood Warning | FSD | Brookings | 6 days |
| Jul 7, 9:54 AM CDT | River Flood Warning | FSD | Brookings, Moody | 49 hr |
Nearby
Tornado Warnings in South Dakota, 2010Every tornado warning in 2010Tornadoes in 2010
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.