Alert archive / Minnesota / Tornado Warnings in 2011
Tornado Warning 33, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Jun 20, 2011, 11:00 PM CDT for Pipestone County, Rock County, Minnesota; Minnehaha County, Moody County, South Dakota. It was in force for 30 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 20, 2011, 11:00 PM CDT (04:00 UTC)
- Expired
- Jun 20, 2011, 11:30 PM CDT
- In force
- 30 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
Counties Pipestone County, MN, Rock County, MN, Minnehaha County, SD, Moody County, SD
The radar
The Sioux Falls radar (KFSD), 44 km from the middle of the area, began a volume at 04:02 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 20, 6:53 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 4.0 hours before the alert went out and 192 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
- 4 J/kg
- Mixed-layer CIN
- -101 J/kg
- Mixed-layer LCL
- 643 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
173
WFUS53 KFSD 210400
TORFSD
MNC117-133-SDC099-101-210430-
/O.NEW.KFSD.TO.W.0033.110621T0400Z-110621T0430Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1100 PM CDT MON JUN 20 2011
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHWESTERN PIPESTONE COUNTY IN SOUTHWEST MINNESOTA...
NORTHWESTERN ROCK COUNTY IN SOUTHWEST MINNESOTA...
NORTHEASTERN MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA...
SOUTHEASTERN MOODY COUNTY IN EAST CENTRAL SOUTH DAKOTA...
* UNTIL 1130 PM CDT
* AT 1101 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
DANGEROUS STORM WAS LOCATED NEAR SHERMAN...OR 16 MILES SOUTHWEST OF
PIPESTONE...AND MOVING NORTH AT 25 MPH.
* THIS TORNADIC STORM WILL BE NEAR...
PIPESTONE NATIONAL MONUMENT AND PIPESTONE AROUND 1130 PM CDT...
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE IHLEN.
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.
TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.
&&
LAT...LON 4402 9628 4374 9630 4378 9652 4385 9658
4405 9657
TIME...MOT...LOC 0401Z 191DEG 23KT 4383 9649
$$
LIEBL2 follow-up statements
174 WWUS53 KFSD 210417 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1117 PM CDT MON JUN 20 2011 SDC099-210427- /O.CAN.KFSD.TO.W.0033.000000T0000Z-110621T0430Z/ MINNEHAHA SD- 1117 PM CDT MON JUN 20 2011 ...THE TORNADO WARNING FOR NORTHEASTERN MINNEHAHA COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4402 9628 4380 9630 4391 9658 4405 9657 TIME...MOT...LOC 0417Z 186DEG 29KT 4394 9647 $$ MNC117-133-SDC101-210430- /O.CON.KFSD.TO.W.0033.000000T0000Z-110621T0430Z/ PIPESTONE MN-ROCK MN-MOODY SD- 1117 PM CDT MON JUN 20 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN MOODY... EXTREME NORTH CENTRAL ROCK AND SOUTHWESTERN PIPESTONE COUNTIES UNTIL 1130 PM CDT... AT 1117 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 6 MILES NORTHWEST OF JASPER...OR 9 MILES SOUTHWEST OF PIPESTONE...MOVING NORTH AT 35 MPH. THIS DANGEROUS STORM WILL BE NEAR... PIPESTONE NATIONAL MONUMENT AND PIPESTONE AROUND 1125 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... TORNADOES ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW. && LAT...LON 4402 9628 4380 9630 4391 9658 4405 9657 TIME...MOT...LOC 0417Z 186DEG 29KT 4394 9647 $$ LIEBL
061 WWUS53 KFSD 210426 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1126 PM CDT MON JUN 20 2011 MNC117-133-SDC101-210436- /O.EXP.KFSD.TO.W.0033.000000T0000Z-110621T0430Z/ PIPESTONE MN-ROCK MN-MOODY SD- 1126 PM CDT MON JUN 20 2011 ...THE TORNADO WARNING FOR SOUTHEASTERN MOODY...EXTREME NORTH CENTRAL ROCK AND SOUTHWESTERN PIPESTONE COUNTIES WILL EXPIRE AT 1130 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY...HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 4402 9628 4380 9630 4391 9658 4405 9657 TIME...MOT...LOC 0426Z 186DEG 29KT 4401 9646 $$
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 10:38 PM CDT | Tornado Warning | FSD | Jackson, Nobles | 37 min |
| Jun 20, 10:46 PM CDT | Severe Thunderstorm Warning | FSD | Jackson, Nobles, Rock | 29 min |
| Jun 20, 11:13 PM CDT | Severe Thunderstorm Warning | FSD | Cottonwood, Jackson, Murray, Nobles, Pipestone, Rock | 47 min |
| Jun 20, 11:15 PM CDT | Tornado Warning | FSD | Murray, Pipestone, Rock | 30 min |
| Jun 21, 12:55 AM CDT | River Flood Warning | FSD | Jackson | 12 days |
| Jun 21, 2:06 PM CDT | River Flood Warning | FSD | Cottonwood, Jackson | 12 days |
| Jun 20, 8:07 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Clay, Turner, Union, Yankton | 38 min |
| Jun 20, 8:33 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hanson, Hutchinson, McCook, Turner | 27 min |
| Jun 20, 8:38 PM CDT | Tornado Warning | FSD | Bon Homme, Charles Mix, Douglas, Hutchinson | 24 min |
| Jun 20, 8:58 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, Hutchinson, Lincoln, McCook, Minnehaha, Turner | 32 min |
| Jun 20, 9:12 PM CDT | Severe Thunderstorm Warning | FSD | Union | 33 min |
| Jun 20, 9:18 PM CDT | Flash Flood Warning | FSD | Lincoln, Union | 2 hr |
| Jun 20, 9:34 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 41 min |
| Jun 20, 9:39 PM CDT | Flash Flood Warning | FSD | Lincoln, Minnehaha, Turner | 3 hr |
| Jun 20, 9:59 PM CDT | Flash Flood Warning | FSD | Aurora, Brule, Charles Mix, Douglas, Gregory, Jerauld | 3 hr |
| Jun 20, 11:22 PM CDT | Areal Flood Warning | FSD | Aurora, Beadle, Brule, Charles Mix, Davison, Douglas and 5 more | 36 hr |
| Jun 21, 12:55 AM CDT | River Flood Warning | FSD | Minnehaha | 20 hr |
| Jun 21, 6:34 AM CDT | River Flood Warning | FSD | Minnehaha, Moody | 14 hr |
| Jun 21, 6:34 AM CDT | River Flood Warning | FSD | Minnehaha | 51 hr |
| Jun 21, 6:34 AM CDT | River Flood Warning | FSD | Lincoln, Minnehaha | 14 hr |
| Jun 21, 11:40 AM CDT | River Flood Warning | FSD | Brookings | 11 days |
| Jun 21, 11:40 AM CDT | River Flood Warning | FSD | Davison | 7 days |
| Jun 21, 11:40 AM CDT | River Flood Warning | FSD | Turner | 24 hr |
| Jun 21, 11:40 AM CDT | River Flood Warning | FSD | Clay | 24 hr |
Nearby
Tornado Warnings in Minnesota, 2011Tornado Warnings in South Dakota, 2011Every tornado warning in 2011Tornadoes in 2011
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.