Alert archive / Minnesota / Tornado Warnings in 2012
Tornado Warning 18, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at May 4, 2012, 2:18 PM CDT for Jackson County, Nobles County, Minnesota. It was in force for 27 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
- May 4, 2012, 2:18 PM CDT (19:18 UTC)
- Expired
- May 4, 2012, 2:45 PM CDT
- In force
- 27 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), 101 km from the middle of the area, began a volume at 19:20 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, 2:45 PM CDT | TSTM WND DMG | 5 W Lakefield, MN | ROOF RIPPED OFF AN OPEN FACED HOG BARN. |
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, 7.3 hours before the alert went out and 194 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.
977 WFUS53 KFSD 041918 TORFSD MNC063-105-041945- /O.NEW.KFSD.TO.W.0018.120504T1918Z-120504T1945Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 218 PM CDT FRI MAY 4 2012 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN JACKSON COUNTY IN SOUTHWEST MINNESOTA... NORTHEASTERN NOBLES COUNTY IN SOUTHWEST MINNESOTA... * UNTIL 245 PM CDT * AT 219 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 7 MILES SOUTH OF FULDA...OR 10 MILES NORTH OF WORTHINGTON...AND MOVING EAST AT 20 MPH. * THIS TORNADIC STORM WILL BE NEAR... BREWSTER AROUND 235 PM CDT... HERON LAKE AROUND 245 PM CDT... OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE KINBRAE...DUNDEE AND OKABENA. 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 4369 9567 4385 9568 4385 9524 4366 9522 TIME...MOT...LOC 1919Z 268DEG 15KT 4377 9557 $$ SCHUMACHER
2 follow-up statements
873
WWUS53 KFSD 041933
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
233 PM CDT FRI MAY 4 2012
MNC063-105-041945-
/O.CON.KFSD.TO.W.0018.000000T0000Z-120504T1945Z/
JACKSON MN-NOBLES MN-
233 PM CDT FRI MAY 4 2012
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN NOBLES AND
NORTHWESTERN JACKSON COUNTIES UNTIL 245 PM CDT...
AT 233 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 6 MILES NORTH OF BREWSTER...OR 11 MILES NORTHEAST
OF WORTHINGTON...MOVING EAST AT 15 MPH.
THIS DANGEROUS STORM WILL BE NEAR...
HERON LAKE AROUND 245 PM CDT...
OTHER LOCATIONS IMPACTED BY THIS TORNADO INCLUDE OKABENA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4367 9548 4368 9556 4385 9558 4385 9524
4366 9522
TIME...MOT...LOC 1933Z 268DEG 15KT 4377 9549
$$
SCHUMACHER085
WWUS53 KFSD 041948
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
248 PM CDT FRI MAY 4 2012
MNC063-105-041957-
/O.EXP.KFSD.TO.W.0018.000000T0000Z-120504T1945Z/
JACKSON MN-NOBLES MN-
248 PM CDT FRI MAY 4 2012
...THE TORNADO WARNING FOR NORTHEASTERN NOBLES AND NORTHWESTERN
JACKSON COUNTIES HAS EXPIRED...
...A TORNADO WARNING REMAINS IN EFFECTOR SOUTHWESTERN JACKSON COUNTY
UNTIL 300 PM CDT...
THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT
FOR NORTHWESTERN JACKSON COUNTY UNTIL 315 PM CDT.
IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT.
LAT...LON 4367 9548 4368 9556 4385 9558 4385 9524
4366 9522
TIME...MOT...LOC 1933Z 268DEG 15KT 4377 9549
$$
SCHUMACHERThe 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, 2:06 PM CDT | Tornado Warning | FSD | Jackson, Nobles | 24 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.