Alert archive / South Dakota / Tornado Warnings in 2007
Tornado Warning 11, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at May 4, 2007, 7:50 PM CDT for Hanson County, South Dakota. It was in force for 25 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
- May 4, 2007, 7:50 PM CDT (00:50 UTC)
- Expired
- May 4, 2007, 8:15 PM CDT
- In force
- 25 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Counties, with a storm outline in the text
County Hanson County, SD
The radar
The Sioux Falls radar (KFSD), 83 km from the middle of the area, began a volume at 00:52 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 |
|---|---|---|---|
| May 4, 7:55 PM CDT | TORNADO | 4 W Emery, SD | DAMAGE TO HOUSE AND GARAGE. DAMAGE TO A BARN. POWER LINES REPORTED DOWN. |
| May 4, 8:21 PM CDT | TORNADO | 1 E Farmer, SD |
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 |
|---|---|---|---|
| May 4, 2:24 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 0.8 hours before the alert went out and 148 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
- 121 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 727 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 50 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 050051 TORFSD SDC061-050115- /O.NEW.KFSD.TO.W.0011.070505T0050Z-070505T0115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 750 PM CDT FRI MAY 4 2007 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * TORNADO WARNING FOR... HANSON COUNTY IN SOUTHEAST SOUTH DAKOTA * UNTIL 815 PM CDT * AT 750 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES WEST OF EMERY...OR ABOUT 19 MILES SOUTHEAST OF MITCHELL...MOVING NORTH AT 25 MPH. * THE TORNADO WILL BE NEAR... ALEXANDRIA AROUND 800 PM CDT... FARMER AROUND 805 PM CDT... FULTON AROUND 810 PM CDT... AT 748 PM...A FUNNEL CLOUD WAS REPORTED BY A TRAINED STORM SPOTTER WITH THIS STORM. THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY ISSUED FOR THE WARNED AREA. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FRIDAY EVENING FOR NORTHEAST NEBRASKA. LAT...LON 4352 9780 4353 9761 4384 9762 4384 9795 $$ BT
4 follow-up statements
000 WWUS53 KFSD 050055 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 754 PM CDT FRI MAY 4 2007 SDC061-050115- /O.CON.KFSD.TO.W.0011.000000T0000Z-070505T0115Z/ HANSON SD- 754 PM CDT FRI MAY 4 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR HANSON COUNTY... AT 754 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED 4 MILES SOUTHEAST OF ALEXANDRIA...OR ABOUT 17 MILES SOUTHEAST OF MITCHELL...MOVING NORTHWEST AT 20 MPH. THE TORNADO WILL BE NEAR... ALEXANDRIA AROUND 805 PM CDT... FARMER AROUND 810 PM CDT... FULTON AROUND 815 PM CDT... NATIONAL WEATHER SERVICE RADAR INDICATES THE ROTATION WITH THIS STORM IS INCREASING. A FUNNEL CLOUD HAS BEEN REPORTED WITH THIS STORM. IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FRIDAY EVENING FOR NORTHEAST NEBRASKA. LAT...LON 4352 9780 4353 9761 4384 9762 4384 9795 $$ BT
000 WWUS53 KFSD 050100 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 800 PM CDT FRI MAY 4 2007 SDC061-050115- /O.CON.KFSD.TO.W.0011.000000T0000Z-070505T0115Z/ HANSON SD- 800 PM CDT FRI MAY 4 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR HANSON COUNTY... AT 800 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED 3 MILES SOUTHEAST OF ALEXANDRIA...OR ABOUT 17 MILES SOUTHEAST OF MITCHELL...MOVING NORTH AT 20 MPH. THE TORNADO WILL BE NEAR... ALEXANDRIA AROUND 805 PM CDT... FARMER...FULTON AROUND 815 PM CDT... DOPPLER RADAR CONTINUES TO INDICATE STRONG ROTATION WITH THIS STORM. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FRIDAY EVENING FOR NORTHEAST NEBRASKA. LAT...LON 4352 9780 4353 9761 4384 9762 4384 9795 $$ BT
000 WWUS53 KFSD 050106 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 805 PM CDT FRI MAY 4 2007 SDC061-050115- /O.CON.KFSD.TO.W.0011.000000T0000Z-070505T0115Z/ HANSON SD- 805 PM CDT FRI MAY 4 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR HANSON COUNTY... AT 805 PM CDT...A TORNADO WAS REPORTED. THIS TORNADO WAS LOCATED 3 MILES EAST OF ALEXANDRIA...OR ABOUT 17 MILES EAST OF MITCHELL... MOVING NORTH AT 20 MPH. THE TORNADO WILL BE NEAR... FULTON AROUND 810 PM CDT... FARMER AROUND 815 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE ROTATION WITH THIS STORM HAS BEGUN TO WEAKEN...HOWEVER...THE ROTATION MAY STILL BE STRONG ENOUGH TO PRODUCE A TORNADO. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FRIDAY EVENING FOR NORTHEAST NEBRASKA. LAT...LON 4352 9780 4353 9761 4384 9762 4384 9795 $$ BT
000 WWUS53 KFSD 050110 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 808 PM CDT FRI MAY 4 2007 SDC061-050115- /O.CON.KFSD.TO.W.0011.000000T0000Z-070505T0115Z/ HANSON SD- 808 PM CDT FRI MAY 4 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR HANSON COUNTY... AT 808 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED 3 MILES SOUTH OF FARMER...OR ABOUT 19 MILES EAST OF MITCHELL...MOVING NORTH AT 20 MPH. AT 806 PM...TRAINED WEATHER SPOTTERS REPORTED A TORNADO 3 MILES SOUTH OF FARMER. A TORNADO HAS BEEN CONFIRMED. TAKE COVER IN A STURDY BUILDING NOW. MOBILE HOMES AND VEHICLES ARE NOT SAFE. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FRIDAY EVENING FOR NORTHEAST NEBRASKA. LAT...LON 4352 9780 4353 9761 4384 9762 4384 9795 $$ BT
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 7:25 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 35 min |
| May 4, 7:43 PM CDT | Tornado Warning | FSD | Hanson | 32 min |
| May 4, 8:12 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Miner | 33 min |
| May 4, 8:14 PM CDT | Tornado Warning | FSD | Hanson | 31 min |
| May 4, 9:04 PM CDT | Severe Thunderstorm Warning | FSD | Davison | 26 min |
| May 4, 9:24 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Sanborn | 36 min |
| May 5, 12:12 AM CDT | Flash Flood Warning | FSD | Beadle | 3 hr |
| May 5, 5:29 AM CDT | Severe Thunderstorm Warning | FSD | Union | 19 min |
| May 5, 12:29 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 31 min |
| May 5, 12:45 PM CDT | Severe Thunderstorm Warning | FSD | Yankton | 30 min |
| May 5, 12:58 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 47 min |
| May 5, 1:07 PM CDT | Severe Thunderstorm Warning | FSD | Turner | 38 min |
| May 5, 1:15 PM CDT | Severe Thunderstorm Warning | FSD | Yankton | 15 min |
| May 5, 1:21 PM CDT | Severe Thunderstorm Warning | FSD | Yankton | 39 min |
| May 5, 1:55 PM CDT | Flash Flood Warning | FSD | Bon Homme, Hutchinson, Yankton | 3 hr |
| May 5, 2:22 PM CDT | Flash Flood Warning | FSD | Hanson | 4 hr |
| May 5, 2:49 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Miner | 41 min |
| May 5, 2:58 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 32 min |
| May 5, 3:25 PM CDT | Flash Flood Warning | FSD | Miner | 6 hr |
| May 5, 3:31 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, McCook, Miner | 44 min |
| May 5, 3:51 PM CDT | Tornado Warning | FSD | Miner | 24 min |
| May 5, 3:51 PM CDT | Tornado Warning | FSD | Bon Homme | 54 min |
| May 5, 3:58 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 32 min |
| May 5, 4:00 PM CDT | Flash Flood Warning | FSD | Beadle, Kingsbury, Sanborn | 6 hr |
| May 5, 4:08 PM CDT | Tornado Warning | FSD | Hanson, Miner | 37 min |
| May 5, 4:10 PM CDT | Tornado Warning | FSD | Gregory | 50 min |
| May 5, 4:34 PM CDT | Tornado Warning | FSD | Davison | 26 min |
| May 5, 4:38 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 36 min |
| May 5, 4:38 PM CDT | Tornado Warning | FSD | Hutchinson | 37 min |
| May 5, 4:45 PM CDT | Severe Thunderstorm Warning | FSD | Miner | 15 min |
| May 5, 4:45 PM CDT | Tornado Warning | FSD | Bon Homme | 21 min |
| May 5, 4:53 PM CDT | Flash Flood Warning | FSD | Bon Homme, Hutchinson, Yankton | 6 hr |
| May 5, 4:59 PM CDT | Tornado Warning | FSD | Sanborn | 31 min |
| May 5, 5:00 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 30 min |
| May 5, 5:13 PM CDT | Tornado Warning | FSD | Hanson | 47 min |
| May 5, 5:14 PM CDT | Tornado Warning | FSD | Hutchinson | 19 min |
| May 5, 5:22 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury | 23 min |
| May 5, 5:24 PM CDT | Tornado Warning | FSD | Davison | 36 min |
| May 5, 5:28 PM CDT | Severe Thunderstorm Warning | FSD | Yankton | 47 min |
| May 5, 5:29 PM CDT | Severe Thunderstorm Warning | FSD | Douglas | 16 min |
| May 5, 5:39 PM CDT | Tornado Warning | FSD | Yankton | 36 min |
| May 5, 5:41 PM CDT | Severe Thunderstorm Warning | FSD | Aurora | 49 min |
| May 5, 5:46 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 13 min |
| May 5, 5:50 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 25 min |
| May 5, 5:59 PM CDT | Tornado Warning | FSD | Hanson, Miner, Sanborn | 29 min |
| May 5, 6:06 PM CDT | Tornado Warning | FSD | Aurora, Jerauld | 39 min |
| May 5, 6:11 PM CDT | Tornado Warning | FSD | Charles Mix, Gregory | 34 min |
| May 5, 6:13 PM CDT | Tornado Warning | FSD | Hutchinson, Turner, Yankton | 32 min |
| May 5, 6:22 PM CDT | Flash Flood Warning | FSD | Brule | 3 hr |
| May 5, 6:28 PM CDT | Tornado Warning | FSD | Brule | 19 min |
| May 5, 6:43 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, McCook | 32 min |
| May 5, 6:45 PM CDT | Tornado Warning | FSD | Jerauld | 30 min |
Nearby
Tornado Warnings in South Dakota, 2007Every tornado warning in 2007Tornadoes in 2007
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.