Alert archive / South Dakota / Tornado Warnings in 2009
Tornado Warning 16, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Jun 16, 2009, 5:41 PM CDT for Aurora County, Davison 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 16, 2009, 5:41 PM CDT (22:41 UTC)
- Expired
- Jun 16, 2009, 6:30 PM CDT
- In force
- 49 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
Counties Aurora County, SD, Davison County, SD
The radar
The Sioux Falls radar (KFSD), 115 km from the middle of the area, began a volume at 22:44 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 16, 4:16 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 10.7 hours before the alert went out and 296 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
- 212 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 687 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KFSD 162241 TORFSD SDC003-035-162330- /O.NEW.KFSD.TO.W.0016.090616T2241Z-090616T2330Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 541 PM CDT TUE JUN 16 2009 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 * UNTIL 630 PM CDT * AT 536 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A CONFIRMED TORNADO 7 MILES SOUTH OF MOUNT VERNON...OR 14 MILES SOUTHWEST OF MITCHELL. DOPPLER RADAR SHOWED THIS TORNADO MOVING SOUTHEAST AT 10 MPH. * THE TORNADO WILL BE NEAR... ETHAN AROUND 630 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... A STORM CHASER REPORTED A TORNADO WITH THIS STORM WITHIN THE LAST 10 MINUTES. THIS STORM IS SHOWING MULTIPLE AREAS OF ROTATION...ONE NEAR THE DAVISON AURORA COUNTY LINE...AND THE OTHER 7 MILES SOUTH OF MOUNT VERNON. IN ADDITION TO THE TORNADO...THIS STORM IS EXPECTED TO PRODUCE GOLFBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS WELL AWAY FROM THE STORM CENTER. && LAT...LON 4371 9798 4350 9798 4351 9843 4377 9838 TIME...MOT...LOC 2240Z 304DEG 8KT 4361 9824 $$ BT
2 follow-up statements
000
WWUS53 KFSD 162248
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
548 PM CDT TUE JUN 16 2009
SDC003-162258-
/O.CAN.KFSD.TO.W.0016.000000T0000Z-090616T2330Z/
AURORA SD-
548 PM CDT TUE JUN 16 2009
...THE TORNADO WARNING FOR SOUTHEASTERN AURORA COUNTY IS CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT TUESDAY EVENING
FOR SOUTHEASTERN SOUTH DAKOTA.
LAT...LON 4351 9822 4351 9833 4376 9833 4371 9798
4350 9798
TIME...MOT...LOC 2248Z 309DEG 7KT 4360 9824
$$
SDC035-162330-
/O.CON.KFSD.TO.W.0016.000000T0000Z-090616T2330Z/
DAVISON SD-
548 PM CDT TUE JUN 16 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR SOUTHERN
DAVISON COUNTY...
AT 547 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED 8 MILES SOUTH OF MOUNT
VERNON...OR 14 MILES SOUTHWEST OF MITCHELL...MOVING SOUTHEAST AT 10
MPH.
THE TORNADO WILL BE NEAR...
RURAL SOUTHERN DAVISON COUNTY THROUGH 630 PM CDT
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
GOLFBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT TUESDAY EVENING
FOR SOUTHEASTERN SOUTH DAKOTA.
&&
LAT...LON 4351 9822 4351 9833 4376 9833 4371 9798
4350 9798
TIME...MOT...LOC 2248Z 309DEG 7KT 4360 9824
$$
BT000
WWUS53 KFSD 162258
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
558 PM CDT TUE JUN 16 2009
SDC035-162330-
/O.CON.KFSD.TO.W.0016.000000T0000Z-090616T2330Z/
DAVISON SD-
558 PM CDT TUE JUN 16 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR SOUTHERN
DAVISON COUNTY...
AT 554 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED 9 MILES SOUTH OF MOUNT
VERNON...OR 14 MILES SOUTHWEST OF MITCHELL...MOVING SOUTHEAST AT 10
MPH. A SECOND AREA OF ROTATION WAS LOCATED 12 MILES TO THE SOUTH
SOUTH EAST OF MOUNT VERNON.
THE TORNADO WILL BE NEAR...
RURAL SOUTHERN DAVISON COUNTY THROUGH 610 PM CDT
PRECAUTIONARY/PREPAREDNESS ACTIONS...
AT 554 PM...A FUNNEL CLOUD WAS REPORTED AT 401ST ST AND 263RD
AVE...OR 10 MILES WEST NORTH WEST OF ETHAN.
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
GOLFBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT TUESDAY EVENING
FOR SOUTHEASTERN SOUTH DAKOTA.
&&
LAT...LON 4351 9822 4351 9833 4376 9833 4371 9798
4350 9798
TIME...MOT...LOC 2255Z 309DEG 7KT 4359 9822
$$
BTThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 3:35 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 25 min |
| Jun 16, 3:43 PM CDT | Tornado Warning | FSD | Beadle, Jerauld | 47 min |
| Jun 16, 3:57 PM CDT | Tornado Warning | FSD | Beadle | 16 min |
| Jun 16, 4:29 PM CDT | Tornado Warning | FSD | Beadle, Jerauld | 46 min |
| Jun 16, 4:42 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 33 min |
| Jun 16, 4:43 PM CDT | Tornado Warning | FSD | Aurora | 40 min |
| Jun 16, 5:04 PM CDT | Tornado Warning | FSD | Jerauld, Sanborn | 41 min |
| Jun 16, 5:11 PM CDT | Tornado Warning | FSD | Aurora, Davison | 34 min |
| Jun 16, 5:28 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Davison, Jerauld, Sanborn | 47 min |
| Jun 16, 6:08 PM CDT | Tornado Warning | FSD | Davison, Douglas, Hanson, Hutchinson | 52 min |
| Jun 16, 6:18 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Davison, Jerauld, Sanborn | 29 min |
| Jun 16, 6:36 PM CDT | Tornado Warning | FSD | Davison, Hanson, Hutchinson | 39 min |
| Jun 16, 6:55 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Douglas, Hanson, Hutchinson | 35 min |
| Jun 16, 6:58 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Miner, Sanborn | 32 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.