Alert archive / South Dakota / Tornado Warnings in 2010
Tornado Warning 40, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Jul 6, 2010, 7:55 PM CDT for 5 counties in South Dakota. It was in force for 26 min. 1 report 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, 7:55 PM CDT (00:55 UTC)
- Expired
- Jul 6, 2010, 8:21 PM CDT
- In force
- 26 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
Counties Aurora County, SD, Davison County, SD, Douglas County, SD, Hanson County, SD, Hutchinson County, SD
The radar
The Sioux Falls radar (KFSD), 112 km from the middle of the area, began a volume at 00:55 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, 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, 0.9 hours before the alert went out and 157 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.
201 WFUS53 KFSD 070055 TORFSD SDC003-035-043-061-067-070145- /O.NEW.KFSD.TO.W.0040.100707T0055Z-100707T0145Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 755 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... SOUTHERN DAVISON COUNTY IN SOUTHEAST SOUTH DAKOTA... NORTHEASTERN DOUGLAS COUNTY IN SOUTHEAST SOUTH DAKOTA... SOUTHWESTERN HANSON COUNTY IN SOUTHEAST SOUTH DAKOTA... NORTHWESTERN HUTCHINSON COUNTY IN SOUTHEAST SOUTH DAKOTA... * UNTIL 845 PM CDT * AT 754 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED JUST EAST OF CORSICA...OR 21 MILES SOUTH OF PLANKINTON...AND MOVING EAST AT 30 MPH. * THIS TORNADIC STORM WILL BE NEAR... DIMOCK...ETHAN AND PARKSTON AROUND 830 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS HAD A HISTORY OF PRODUCING TORNADOES...AND GOLF BALL TO BASEBALL SIZED HAIL. IT IS A DANGEROUS STORM. 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 4362 9792 4336 9787 4339 9842 4353 9845 TIME...MOT...LOC 0054Z 262DEG 25KT 4344 9832 $$ MJF
2 follow-up statements
765
WWUS53 KFSD 070108
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
808 PM CDT TUE JUL 6 2010
SDC003-070116-
/O.CAN.KFSD.TO.W.0040.000000T0000Z-100707T0145Z/
AURORA SD-
808 PM CDT TUE JUL 6 2010
...THE TORNADO WARNING FOR SOUTHEASTERN AURORA COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED EAST OF THE WARNED
AREA.
LAT...LON 4350 9833 4355 9833 4355 9832 4362 9792
4339 9789 4340 9832 4350 9837
TIME...MOT...LOC 0106Z 258DEG 28KT 4349 9822
$$
SDC035-043-061-067-070145-
/O.CON.KFSD.TO.W.0040.000000T0000Z-100707T0145Z/
DAVISON SD-HANSON SD-DOUGLAS SD-HUTCHINSON SD-
808 PM CDT TUE JUL 6 2010
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN HUTCHINSON...
NORTHEASTERN DOUGLAS...SOUTHWESTERN HANSON AND SOUTHERN DAVISON
COUNTIES UNTIL 845 PM CDT...
AT 806 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 10 MILES NORTHEAST OF CORSICA...OR 20 MILES
SOUTHWEST OF MITCHELL...MOVING EAST AT 30 MPH.
THIS DANGEROUS STORM WILL BE NEAR...
DIMOCK AND PARKSTON AROUND 825 PM CDT...
ETHAN AROUND 830 PM CDT...
OVER THE LAST SEVERAL MINUTES...THIS STORM HAS SHOWN SIGNS OF
WEAKENING IN ITS TORNADIC SIGNATURES...BUT WILL MONITORED CLOSELY
FOR REINTENSIFICATION. HAIL SIGNATURES ARE STILL PREVALENT...
POSSIBLY UP TO THE SIZE OF QUARTERS TO HALF DOLLARS.
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.
&&
LAT...LON 4350 9833 4355 9833 4355 9832 4362 9792
4339 9789 4340 9832 4350 9837
TIME...MOT...LOC 0106Z 258DEG 28KT 4349 9822
$$
MJF792
WWUS53 KFSD 070121
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
821 PM CDT TUE JUL 6 2010
SDC035-043-061-067-070131-
/O.CAN.KFSD.TO.W.0040.000000T0000Z-100707T0145Z/
DAVISON SD-HANSON SD-DOUGLAS SD-HUTCHINSON SD-
821 PM CDT TUE JUL 6 2010
...THE TORNADO WARNING FOR NORTHWESTERN HUTCHINSON...NORTHEASTERN
DOUGLAS...SOUTHWESTERN HANSON AND SOUTHERN DAVISON COUNTIES IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
LAT...LON 4350 9833 4355 9833 4355 9832 4362 9792
4339 9789 4340 9832 4350 9837
TIME...MOT...LOC 0121Z 258DEG 28KT 4351 9806
$$
MJFThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 7:13 PM CDT | Tornado Warning | FSD | Aurora, Davison, Douglas | 47 min |
| Jul 6, 7:30 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 45 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.