Alert archive / Minnesota / Tornado Warnings in 2011
Tornado Warning 17, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at May 22, 2011, 2:45 PM CDT for Anoka County, Ramsey County, Washington County, Minnesota. It was in force for 30 min. 5 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 22, 2011, 2:45 PM CDT (19:45 UTC)
- Expired
- May 22, 2011, 3:15 PM CDT
- In force
- 30 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Anoka County, MN, Ramsey County, MN, Washington County, MN
The radar
The Minneapolis radar (KMPX), 55 km from the middle of the area, began a volume at 19:46 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, 3:06 PM CDT | FUNNEL CLOUD | N Hugo, MN | WALL CLOUD WITH SIGNIFICANT ROTATION SEEMS TO BE DROPPING FUNNELS |
| May 22, 3:16 PM CDT | TORNADO | S Forest Lake, MN | SOUTH OF FOREST LAKE NEAR JCT 35W AND 35E |
| May 22, 3:19 PM CDT | TORNADO | 3 Ese Forest Lake, MN | |
| May 22, 3:20 PM CDT | FUNNEL CLOUD | Centerville, MN | ROTATING WALL CLOUD 35E AND CR14 |
| May 22, 3:25 PM CDT | TSTM WND DMG | 4 E Ham Lake, MN | 1-2 FT DIA TREES DOWN..FLAG POLE SNAPPED IN HALF. TRREES BLOWN DOWN IN DIRRERENT DIRECTIONS. NARROW DAMAGE PATH. POSSIBLE TORNADO |
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, 7.8 hours before the alert went out and 57 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.
433 WFUS53 KMPX 221945 TORMPX MNC003-123-163-222015- /O.NEW.KMPX.TO.W.0017.110522T1945Z-110522T2015Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 245 PM CDT SUN MAY 22 2011 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN ANOKA COUNTY IN EAST CENTRAL MINNESOTA... NORTHWESTERN WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA... NORTHERN RAMSEY COUNTY IN EAST CENTRAL MINNESOTA... * UNTIL 315 PM CDT * AT 242 PM CDT...RADAR WAS TRACKING A SEVERE STORM WITH STRONG ROTATION. THE MOST DANGEROUS PART OF THE STORM WAS NEAR ARDEN HILLS...OR OVER ARDEN HILLS...AND MOVING NORTHEAST AT 35 MPH. * LOCATIONS IN THE WARNING INCLUDE... FOREST LAKE... WHITE BEAR LAKE... NORTH OAKS... LEXINGTON... CIRCLE PINES... LINO LAKES... CENTERVILLE... HUGO... SHOREVIEW... 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 4533 9309 4525 9287 4502 9304 4507 9323 TIME...MOT...LOC 1944Z 203DEG 30KT 4508 9313 $$
3 follow-up statements
614 WWUS53 KMPX 221954 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 254 PM CDT SUN MAY 22 2011 MNC003-123-163-222015- /O.CON.KMPX.TO.W.0017.000000T0000Z-110522T2015Z/ ANOKA MN-WASHINGTON MN-RAMSEY MN- 254 PM CDT SUN MAY 22 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN RAMSEY... NORTHWESTERN WASHINGTON AND SOUTHEASTERN ANOKA COUNTIES UNTIL 315 PM CDT... AT 251 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A ROTATING WALL CLOUD NEAR SHOREVIEW...OR 12 MILES SOUTHWEST OF FOREST LAKE...MOVING NORTHEAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... FOREST LAKE...LINO LAKES...CENTERVILLE AND HUGO. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4533 9309 4525 9287 4502 9304 4507 9323 TIME...MOT...LOC 1953Z 204DEG 29KT 4514 9308 $$ JLT
831 WWUS53 KMPX 222001 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 301 PM CDT SUN MAY 22 2011 MNC123-222015- /O.CAN.KMPX.TO.W.0017.000000T0000Z-110522T2015Z/ RAMSEY MN- 301 PM CDT SUN MAY 22 2011 ...THE TORNADO WARNING FOR NORTHERN RAMSEY COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4525 9287 4512 9297 4512 9317 4533 9309 TIME...MOT...LOC 2000Z 204DEG 29KT 4519 9305 $$ MNC003-163-222015- /O.CON.KMPX.TO.W.0017.000000T0000Z-110522T2015Z/ ANOKA MN-WASHINGTON MN- 301 PM CDT SUN MAY 22 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN WASHINGTON AND SOUTHEASTERN ANOKA COUNTIES UNTIL 315 PM CDT... AT 259 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A ROTATING WALL CLOUD NEAR CENTERVILLE...OR 7 MILES SOUTHWEST OF FOREST LAKE...MOVING NORTHEAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... FOREST LAKE. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4525 9287 4512 9297 4512 9317 4533 9309 TIME...MOT...LOC 2000Z 204DEG 29KT 4519 9305 $$
313
WWUS53 KMPX 222008
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
308 PM CDT SUN MAY 22 2011
MNC003-222023-
/O.CAN.KMPX.TO.W.0017.000000T0000Z-110522T2015Z/
ANOKA MN-
308 PM CDT SUN MAY 22 2011
...THE TORNADO WARNING FOR SOUTHEASTERN ANOKA COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 4525 9287 4513 9296 4512 9298 4513 9302
4529 9302 4530 9301
TIME...MOT...LOC 2008Z 220DEG 27KT 4522 9297
$$
MNC163-222015-
/O.CON.KMPX.TO.W.0017.000000T0000Z-110522T2015Z/
WASHINGTON MN-
308 PM CDT SUN MAY 22 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN WASHINGTON
COUNTY UNTIL 315 PM CDT...
AT 306 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A ROTATING WALL
CLOUD NEAR HUGO...OR NEAR FOREST LAKE...MOVING NORTHEAST AT 30 MPH.
LOCATIONS IMPACTED INCLUDE...
FOREST LAKE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT... EITHER PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR
VEHICLE AND LIE DOWN IN A LOW LYING AREA.
&&
LAT...LON 4525 9287 4513 9296 4512 9298 4513 9302
4529 9302 4530 9301
TIME...MOT...LOC 2008Z 220DEG 27KT 4522 9297
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 10:57 AM CDT | Special Weather Statement | MPX | Dakota, Goodhue, Rice | 48 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, 3:10 PM CDT | Tornado Warning | MPX | Chisago, Washington | 35 min |
| May 22, 3:34 PM CDT | Tornado Warning | MPX | Chisago | 41 min |
Nearby
Tornado 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.