Alert archive / Wisconsin / Tornado Warnings in 2011
Tornado Warning 20, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at May 22, 2011, 3:34 PM CDT for Polk County, Wisconsin; Chisago County, Minnesota. It was in force for 41 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 22, 2011, 3:34 PM CDT (20:34 UTC)
- Expired
- May 22, 2011, 4:15 PM CDT
- In force
- 41 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Chisago County, MN, Polk County, WI
The radar
The Minneapolis radar (KMPX), 96 km from the middle of the area, began a volume at 20:38 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 22, 3:42 PM CDT | FUNNEL CLOUD | Lindstrom, 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 22, 12:07 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 8.6 hours before the alert went out and 98 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
- 20 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 981 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 243 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
888 WFUS53 KMPX 222034 TORMPX MNC025-WIC095-222115- /O.NEW.KMPX.TO.W.0020.110522T2034Z-110522T2115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 334 PM CDT SUN MAY 22 2011 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... EASTERN CHISAGO COUNTY IN EAST CENTRAL MINNESOTA... NORTHWESTERN POLK COUNTY IN NORTHWEST WISCONSIN... * UNTIL 415 PM CDT * AT 332 PM CDT...RADAR WAS TRACKING A SEVERE STORM WITH STRONG ROTATION. THE MOST DANGEROUS PART OF THE STORM WAS 2 MILES NORTHWEST OF LINDSTROM...AND MOVING NORTH AT 40 MPH. * LOCATIONS IN THE WARNING INCLUDE... WOLF CREEK... SUNRISE... ALMELUMD... ST CROIX WILD RIVER STATE PARK... PRECAUTIONARY/PREPAREDNESS ACTIONS... WHEN A TORNADO WARNING IS ISSUED BASED ON RADAR...IT MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY EVENING FOR SOUTHEASTERN MINNESOTA AND NORTHWESTERN WISCONSIN. && LAT...LON 4564 9290 4564 9264 4539 9273 4539 9298 TIME...MOT...LOC 2033Z 202DEG 34KT 4542 9285 $$
3 follow-up statements
129 WWUS53 KMPX 222045 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 345 PM CDT SUN MAY 22 2011 MNC025-WIC095-222115- /O.CON.KMPX.TO.W.0020.000000T0000Z-110522T2115Z/ CHISAGO MN-POLK WI- 345 PM CDT SUN MAY 22 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN POLK AND EASTERN CHISAGO COUNTIES UNTIL 415 PM CDT... AT 342 PM CDT...TRAINED WEATHER SPOTTERS REPORTED MULTIPLE FUNNEL CLOUDS NORTH OF LINDSTROM MOVING NORTH NORTHEAST AT 25 MPH. THIS DANGEROUS STORM WHICH WILL IMPACT AREAS NORTH AND NORTHEAST OF LINDSTROM. TAKE COVER NOW IF YOU ARE IN THE PATH OF THIS STORM! LOCATIONS IMPACTED INCLUDE... WOLF CREEK... SUNRISE... ALMELUMD... ST CROIX WILD RIVER STATE PARK. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST RESORT... EITHER PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR VEHICLE AND LIE DOWN IN A LOW LYING AREA. && LAT...LON 4564 9290 4564 9264 4539 9273 4539 9298 TIME...MOT...LOC 2043Z 203DEG 23KT 4549 9281 $$
500 WWUS53 KMPX 222058 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 358 PM CDT SUN MAY 22 2011 MNC025-WIC095-222115- /O.CON.KMPX.TO.W.0020.000000T0000Z-110522T2115Z/ CHISAGO MN-POLK WI- 358 PM CDT SUN MAY 22 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN POLK AND EASTERN CHISAGO COUNTIES UNTIL 415 PM CDT... AT 345 PM CDT...TRAINED WEATHER SPOTTERS OBSERVED MULTIPLE FUNNEL CLOUDS NEAR AND NORTH OF LINDSTROM. THIS DANGEROUS STORM WAS LOCATED SOUTHWEST OF WOLF CREEK...OR 9 MILES EAST OF NORTH BRANCH...MOVING NORTH AT 35 MPH. LOCATIONS IMPACTED INCLUDE... WOLF CREEK... SUNRISE. 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 4564 9290 4564 9264 4539 9273 4539 9298 TIME...MOT...LOC 2055Z 198DEG 30KT 4553 9279 $$
285 WWUS53 KMPX 222111 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 411 PM CDT SUN MAY 22 2011 MNC025-WIC095-222126- /O.EXP.KMPX.TO.W.0020.000000T0000Z-110522T2115Z/ CHISAGO MN-POLK WI- 411 PM CDT SUN MAY 22 2011 ...THE TORNADO WARNING FOR NORTHWESTERN POLK AND EASTERN CHISAGO COUNTIES WILL EXPIRE AT 415 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO WATCH REMAINS IN EFFECT UNTIL 8 PM. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES. LAT...LON 4564 9290 4564 9264 4539 9273 4539 9298 TIME...MOT...LOC 2111Z 198DEG 30KT 4566 9273 $$ JLT
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 10:57 AM CDT | Special Weather Statement | MPX | Pierce | 48 min |
| May 22, 11:28 AM CDT | Special Weather Statement | MPX | Dunn, Pierce, Saint Croix | 47 min |
| May 22, 12:05 PM CDT | Special Weather Statement | MPX | Barron, Dunn, Polk, Saint Croix | 40 min |
| May 22, 12:58 PM CDT | Special Weather Statement | MPX | Barron, Chippewa, Rusk | 47 min |
| May 22, 1:16 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Rusk | 44 min |
| May 22, 2:41 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Pierce, Saint Croix | 49 min |
| May 22, 2:55 PM CDT | Tornado Warning | MPX | Dunn, Pierce, Saint Croix | 35 min |
| May 22, 3:22 PM CDT | Severe Thunderstorm Warning | MPX | Dunn | 38 min |
| May 22, 3:44 PM CDT | Special Weather Statement | MPX | Chippewa, Dunn, Eau Claire, Pepin | 46 min |
| May 22, 4:16 PM CDT | Special Weather Statement | MPX | Rusk | 29 min |
| May 21, 7:00 PM CDT | Tornado Warning | MPX | Anoka, Hennepin | 45 min |
| May 21, 7:24 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin, Wright | 51 min |
| May 21, 7:25 PM CDT | Tornado Warning | MPX | Anoka | 35 min |
| May 21, 7:46 PM CDT | Special Weather Statement | MPX | Pope | 44 min |
| May 21, 8:00 PM CDT | Areal Flood Advisory | MPX | Anoka, Hennepin, Wright | 3 hr |
| May 21, 8:06 PM CDT | Severe Thunderstorm Warning | MPX | Martin | 39 min |
| May 21, 8:44 PM CDT | Severe Thunderstorm Warning | MPX | Martin | 61 min |
| May 21, 8:59 PM CDT | Special Weather Statement | MPX | Todd | 61 min |
| May 21, 9:11 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 64 min |
| May 21, 9:25 PM CDT | Severe Thunderstorm Warning | MPX | Watonwan | 50 min |
| May 21, 9:42 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 48 min |
| May 21, 10:12 PM CDT | Special Weather Statement | MPX | Yellow Medicine | 48 min |
| May 21, 10:26 PM CDT | Special Weather Statement | MPX | Redwood | 34 min |
| May 21, 10:43 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Martin, Redwood, Watonwan | 62 min |
| May 21, 10:43 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Pope, Renville, Stevens, Swift | 47 min |
| May 22, 12:46 AM CDT | Special Weather Statement | MPX | Le Sueur, Rice, Steele, Waseca | 44 min |
| May 22, 11:02 AM CDT | Special Weather Statement | MPX | Anoka, Hennepin, Ramsey | 43 min |
| May 22, 12:38 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur, Rice, Steele, Waseca | 52 min |
| May 22, 12:53 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Le Sueur, Scott | 52 min |
| May 22, 1:23 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue, Rice, Steele | 67 min |
| May 22, 1:35 PM CDT | Special Weather Statement | MPX | Hennepin | 40 min |
| May 22, 2:05 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 40 min |
| May 22, 2:10 PM CDT | Tornado Warning | MPX | Anoka, Hennepin, Ramsey | 35 min |
| May 22, 2:24 PM CDT | Tornado Warning | MPX | Anoka, Hennepin, Ramsey | 36 min |
| May 22, 2:45 PM CDT | Tornado Warning | MPX | Anoka, Ramsey, Washington | 30 min |
| May 22, 3:10 PM CDT | Tornado Warning | MPX | Chisago, Washington | 35 min |
Nearby
Tornado Warnings in Wisconsin, 2011Tornado Warnings in Minnesota, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.