Alert archive / Minnesota / Tornado Warnings in 2012
Tornado Warning 17, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at May 4, 2012, 2:06 PM CDT for Jackson County, Nobles County, Minnesota. It was in force for 24 min. 3 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, 2012, 2:06 PM CDT (19:06 UTC)
- Expired
- May 4, 2012, 2:30 PM CDT
- In force
- 24 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
Counties Jackson County, MN, Nobles County, MN
The radar
The Sioux Falls radar (KFSD), 100 km from the middle of the area, began a volume at 19:06 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, 2:10 PM CDT | TORNADO 0 | 1 N Worthington, MN | TORNADO TOUCHDOWN 3/4 MILES NORTH OF WORTHINGTON NEAR THE AIRPORT. |
| May 4, 2:15 PM CDT | HAIL 1 | 2 N Worthington, MN | THUNDERSTORM WINDS FROM 30 TO 60 MILES AN HOUR. REPORTED NEAR WORTHINGTON MUNICIPAL AIRPORT |
| May 4, 2:28 PM CDT | TORNADO | 5 N Round Lake, MN | TORNADO TOUCHDOWN 5 MILES NORTH OF ROUND LAKE MN. |
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, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 7.1 hours before the alert went out and 201 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
- 1101 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -52 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
085 WFUS53 KFSD 041906 TORFSD MNC063-105-041930- /O.NEW.KFSD.TO.W.0017.120504T1906Z-120504T1930Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 206 PM CDT FRI MAY 4 2012 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * TORNADO WARNING FOR... WEST CENTRAL JACKSON COUNTY IN SOUTHWEST MINNESOTA... EAST CENTRAL NOBLES COUNTY IN SOUTHWEST MINNESOTA... * UNTIL 230 PM CDT * AT 206 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR WORTHINGTON...AND MOVING EAST AT 30 MPH. * THIS TORNADIC STORM WILL BE NEAR... BREWSTER AROUND 225 PM CDT... A TORNADO WAS REPORTED 6 MILES WEST OF WORTHINGTON AT 203 PM CDT. 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 4374 9531 4353 9532 4357 9576 4370 9577 TIME...MOT...LOC 1906Z 265DEG 24KT 4361 9563 $$ SCHUMACHER
2 follow-up statements
223 WWUS53 KFSD 041911 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 211 PM CDT FRI MAY 4 2012 MNC063-105-041930- /O.CON.KFSD.TO.W.0017.000000T0000Z-120504T1930Z/ JACKSON MN-NOBLES MN- 211 PM CDT FRI MAY 4 2012 ...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL NOBLES AND WEST CENTRAL JACKSON COUNTIES UNTIL 230 PM CDT... AT 210 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A CONFIRMED TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR WORTHINGTON...MOVING EAST AT 30 MPH. AT 210 PM CDT...A TRONADO WAS REPORTED NEAR WORTHINGTON. DEBRIS WAS REPORTED NEAR WORTHINGTON. THIS DANGEROUS STORM WILL BE NEAR... BREWSTER AROUND 225 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4374 9531 4353 9532 4357 9576 4370 9577 TIME...MOT...LOC 1910Z 265DEG 24KT 4361 9559 $$ SCHUMACHER
073 WWUS53 KFSD 041932 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 232 PM CDT FRI MAY 4 2012 MNC063-105-041941- /O.EXP.KFSD.TO.W.0017.000000T0000Z-120504T1930Z/ JACKSON MN-NOBLES MN- 232 PM CDT FRI MAY 4 2012 ...THE TORNADO WARNING FOR EAST CENTRAL NOBLES HAS EXPIRED... ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN JACKSON COUNTY UNTIL 300 PM... ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN NOBLES AND NORTHWESTERN NOBLES UNTIL 245 PM... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA...HOWEVER SMALL HAIL AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM. IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM CDT. LAT...LON 4374 9531 4353 9532 4357 9576 4370 9577 TIME...MOT...LOC 1911Z 265DEG 24KT 4361 9558 $$ SCHUMACHER
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 1:43 PM CDT | Severe Thunderstorm Warning | FSD | Murray, Nobles | 47 min |
| May 4, 2:18 PM CDT | Tornado Warning | FSD | Jackson, Nobles | 27 min |
| May 4, 2:24 PM CDT | Tornado Warning | FSD | Jackson | 36 min |
| May 4, 2:43 PM CDT | Severe Thunderstorm Warning | FSD | Cottonwood, Jackson | 32 min |
| May 4, 2:58 PM CDT | Tornado Warning | FSD | Jackson | 32 min |
| May 4, 3:06 PM CDT | Severe Thunderstorm Warning | FSD | Jackson | 24 min |
| May 4, 3:23 PM CDT | Severe Thunderstorm Warning | FSD | Jackson | 37 min |
| May 4, 3:48 PM CDT | Flash Flood Warning | FSD | Jackson, Nobles | 5 hr |
Nearby
Tornado Warnings in Minnesota, 2012Every tornado warning in 2012Tornadoes in 2012
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.