Alert archive / South Dakota / Tornado Warnings in 2009
Tornado Warning 53, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Sep 2, 2009, 3:53 PM CDT for 5 counties in South Dakota. It was in force for 22 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
- Sep 2, 2009, 3:53 PM CDT (20:53 UTC)
- Expired
- Sep 2, 2009, 4:15 PM CDT
- In force
- 22 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
Counties Aurora County, SD, Brule County, SD, Charles Mix County, SD, Douglas County, SD, Gregory County, SD
The radar
The Sioux Falls radar (KFSD), 175 km from the middle of the area, began a volume at 20:55 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 |
|---|---|---|---|
| Sep 2, 3:55 PM CDT | TORNADO | 3 W Kimball, SD | CONTINUATION OF PATH. TORNADO ON GROUND WITH DEBRIS FOR 4-5 MINUTES FROM INITIAL TOUCHDOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 8.9 hours before the alert went out and 156 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
- 789 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 170 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS53 KFSD 022053
TORFSD
SDC003-015-023-043-053-022115-
/O.NEW.KFSD.TO.W.0053.090902T2053Z-090902T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
353 PM CDT WED SEP 2 2009
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* TORNADO WARNING FOR...
WESTERN AURORA COUNTY IN SOUTHEAST SOUTH DAKOTA
EASTERN BRULE COUNTY IN SOUTH CENTRAL SOUTH DAKOTA
NORTHWESTERN CHARLES MIX COUNTY IN SOUTH CENTRAL SOUTH DAKOTA
EXTREME NORTHWESTERN DOUGLAS COUNTY IN SOUTHEAST SOUTH DAKOTA
EASTERN GREGORY COUNTY IN SOUTH CENTRAL SOUTH DAKOTA
* UNTIL 415 PM CDT
* AT 350 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING BRIEF
TORNADOES. THESE DANGEROUS STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM KIMBALL TO 10 MILES NORTHWEST OF PLATTE TO 6 MILES
NORTHWEST OF NAPER...AND MOVING NORTHEAST AT 10 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...TAKE COVER IMMEDIATELY.
&&
LAT...LON 4393 9872 4357 9867 4301 9880 4301 9922
4342 9907 4391 9907
TIME...MOT...LOC 2052Z 226DEG 6KT 4379 9899 4349 9898
4302 9918
$$
CJ1 follow-up statement
000
WWUS53 KFSD 022101
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
401 PM CDT WED SEP 2 2009
SDC003-015-023-043-053-022115-
/O.CON.KFSD.TO.W.0053.000000T0000Z-090902T2115Z/
AURORA SD-GREGORY SD-CHARLES MIX SD-DOUGLAS SD-BRULE SD-
401 PM CDT WED SEP 2 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR EASTERN
BRULE...EXTREME NORTHWESTERN DOUGLAS...NORTHWESTERN CHARLES MIX...
EASTERN GREGORY AND WESTERN AURORA COUNTIES...
AT 358 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING BRIEF
TORNADOES. THESE TORNADO PRODUCING STORMS WERE LOCATED ALONG A
LINE EXTENDING FROM KIMBALL TO 10 MILES NORTHWEST OF PLATTE TO 12
MILES WEST OF BONESTEEL...MOVING NORTHEAST AT 5 MPH.
LOCATIONS NEAR THE PATH OF TORNADO PRODUCING STORMS
INCLUDE...KIMBALL...KIMBALL...PLATTE AND BONESTEEL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...TAKE COVER IMMEDIATELY.
&&
LAT...LON 4393 9872 4357 9867 4301 9880 4301 9922
4342 9907 4391 9907
TIME...MOT...LOC 2100Z 226DEG 6KT 4380 9898 4350 9897
4303 9917
$$
CJThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 4:11 PM CDT | Tornado Warning | FSD | Aurora, Brule, Charles Mix, Gregory | 49 min |
Nearby
Tornado Warnings in South Dakota, 2009Every tornado warning in 2009Tornadoes in 2009
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.