Alert archive / South Dakota / Tornado Warnings in 2006
Tornado Warning 10, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at May 23, 2006, 5:22 PM CDT for Davison County, South Dakota. It was in force for 35 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 23, 2006, 5:22 PM CDT (22:22 UTC)
- Expired
- May 23, 2006, 5:57 PM CDT
- In force
- 35 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Counties, with a storm outline in the text
County Davison County, SD
The radar
The Sioux Falls radar (KFSD), 117 km from the middle of the area, began a volume at 22:25 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 23, 5:25 PM CDT | TORNADO | 5 Nw Ethan, SD | A GUSTNADO OF BRIEF DURATION WAS OBSERVED ALONG THE OUTFLOW OF THUNDERSTORMS. |
| May 23, 5:25 PM CDT | TORNADO | 5 Nw Ethan, SD | WEAK TORNADO STILL ON GROUND |
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 23, 2:10 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 10.4 hours before the alert went out and 146 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
- 303 J/kg
- Mixed-layer CIN
- -431 J/kg
- Mixed-layer LCL
- 1445 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KFSD 232222 TORFSD SDC035-232300- /O.NEW.KFSD.TO.W.0010.060523T2222Z-060523T2300Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 522 PM CDT TUE MAY 23 2006 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * TORNADO WARNING FOR... DAVISON COUNTY IN SOUTHEAST SOUTH DAKOTA * UNTIL 600 PM CDT * AT 522 PM CDT...TRAINED SPOTTERS REPORTED A TORNADO 10 MILES WEST OF ETHAN...OR ABOUT 15 MILES SOUTHWEST OF MITCHELL...MOVING NORTHEAST AT 30 MPH. * THE TORNADO WILL BE NEAR... MOUNT VERNON AROUND 535 PM CDT... A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT TUESDAY EVENING FOR SOUTHEASTERN SOUTH DAKOTA. LAT...LON 4350 9832 4350 9799 4373 9797 4373 9832 $$ BT
2 follow-up statements
000 WWUS53 KFSD 232232 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 530 PM CDT TUE MAY 23 2006 SDC035-232300- /O.CON.KFSD.TO.W.0010.000000T0000Z-060523T2300Z/ DAVISON SD- 530 PM CDT TUE MAY 23 2006 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR DAVISON COUNTY... AT 530 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED 8 MILES WEST OF ETHAN...OR ABOUT 12 MILES SOUTHWEST OF MITCHELL...MOVING NORTHEAST AT 30 MPH. THE TORNADO WILL BE... NORTH OF ETHAN AROUND 535 PM CDT... AT 528 PM...A TRAINED SPOTTER REPORTED THE TORNADO HAD JUST CROSS HIGHWAY 37. A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT TUESDAY EVENING FOR SOUTHEASTERN SOUTH DAKOTA. LAT...LON 4350 9832 4350 9799 4373 9797 4373 9832 $$ BT
000 WWUS53 KFSD 232257 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 558 PM CDT TUE MAY 23 2006 SDC035-232308- /O.CAN.KFSD.TO.W.0010.000000T0000Z-060523T2300Z/ DAVISON SD- 558 PM CDT TUE MAY 23 2006 ...THE TORNADO WARNING FOR DAVISON COUNTY IS CANCELLED... THE STORM HAS EXITED THE COUNTY. A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT TUESDAY EVENING FOR SOUTHEASTERN SOUTH DAKOTA. LAT...LON 4350 9832 4350 9799 4373 9797 4373 9832 $$ BT
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 3:22 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 23 min |
| May 23, 3:38 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 37 min |
| May 23, 3:43 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 32 min |
| May 23, 5:22 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 38 min |
| May 23, 5:41 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 34 min |
| May 23, 5:46 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 29 min |
| May 23, 6:01 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme | 29 min |
| May 23, 6:12 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 48 min |
| May 23, 6:15 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Yankton | 30 min |
| May 23, 6:55 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 35 min |
Nearby
Tornado Warnings in South Dakota, 2006Every tornado warning in 2006Tornadoes in 2006
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.