Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 228, NWS Twin Cities, MN

August 2, 20114 counties in Minnesota; Polk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 2, 2011, 8:31 AM CDT for 4 counties in Minnesota; Polk County, Wisconsin. It was in force for 74 min. 7 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
Aug 2, 2011, 8:31 AM CDT (13:31 UTC)
Expired
Aug 2, 2011, 9:45 AM CDT
In force
74 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Anoka County, MN, Chisago County, MN, Isanti County, MN, Washington County, MN, Polk County, WI

The radar

The Minneapolis radar (KMPX), 102 km from the middle of the area, began a volume at 13:33 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

TimeReportWhereRemark
Aug 2, 8:38 AM CDTTSTM WND DMGSt Francis, MNTREE DAMAGE. 9 INCH TREE DOWN AND SEVERAL SMALL TREES PARTIALLY UPROOTED.
Aug 2, 8:47 AM CDTTSTM WND DMGIsanti, MNMULTIPLE TREES AND BRANCHES DOWN.
Aug 2, 8:55 AM CDTTSTM WND DMG1 W Athens, MNTREES DOWN.
Aug 2, 8:55 AM CDTTSTM WND DMGSt Francis, MNTREE DAMAGE. 9 INCH TREE DOWN AND SEVERAL SMALL TREES PARTIALLY UPROOTED.
Aug 2, 9:00 AM CDTTSTM WND DMGNorth Branch, MNNUMEROUS TREES DOWN. SOME STRUCTURE DAMAGE BUT NO SPECIFIC DETAILS.
Aug 2, 9:20 AM CDTTSTM WND DMG2 Sw Osceola, WIPART OF ROOF REMOVED FROM A GREENHOUSE. NUMEROUS TREES DOWN OR SNAPPED...SOME TWO FEET IN DIAMETER.
Aug 2, 9:23 AM CDTTSTM WND DMGDresser, WITREE DOWN ON A POWER LINE

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.

IssuedProductOfficeLasted
Aug 2, 5:23 AM CDTSevere Thunderstorm WatchSPC7 hr
Aug 2, 2:20 AM CDTSevere Thunderstorm WatchSPC10 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 1.5 hours before the alert went out and 104 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2011-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2133 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2011-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 233 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2133 J/kg
Mixed-layer CIN
-209 J/kg
Mixed-layer LCL
850 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
233 m²/s²
0-3 km storm-relative helicity
194 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

935 
WUUS53 KMPX 021331
SVRMPX
MNC003-025-059-163-WIC095-021445-
/O.NEW.KMPX.SV.W.0228.110802T1331Z-110802T1445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
831 AM CDT TUE AUG 2 2011

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN ANOKA COUNTY IN EAST CENTRAL MINNESOTA...
  CHISAGO COUNTY IN EAST CENTRAL MINNESOTA...
  ISANTI COUNTY IN EAST CENTRAL MINNESOTA...
  NORTHERN WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA...
  POLK COUNTY IN NORTHWEST WISCONSIN...

* UNTIL 945 AM CDT

* AT 829 AM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE
  STORMS WERE LOCATED ALONG A LINE EXTENDING FROM PRINCETON TO CEDAR
  TO OAK PARK TO ROBBINSDALE...AND MOVING EAST AT 60 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  CAMBRIDGE...
  FOREST LAKE...
  NORTH BRANCH...
  BALSAM LAKE...
  AMERY...
  OAK PARK...
  ST FRANCIS...
  CEDAR...
  HAM LAKE...
  BLAINE...
  EAST BETHEL...
  LEXINGTON...
  CIRCLE PINES...
  ISANTI...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

WIND DAMAGE WITH THIS STORM WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4572 9214 4522 9215 4521 9276 4517 9276
      4512 9326 4556 9346 4557 9314 4573 9314
      4573 9286 4565 9287 4565 9254 4574 9252
      4574 9216
TIME...MOT...LOC 1331Z 261DEG 50KT 4557 9350 4534 9327
          4522 9322 4502 9330
WIND...HAIL 60MPH <.75IN

$$
5 follow-up statements
670 
WWUS53 KMPX 021348
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
848 AM CDT TUE AUG 2 2011

MNC003-025-059-163-WIC095-021445-
/O.CON.KMPX.SV.W.0228.000000T0000Z-110802T1445Z/
ANOKA MN-CHISAGO MN-ISANTI MN-WASHINGTON MN-POLK WI-
848 AM CDT TUE AUG 2 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR POLK...
NORTHERN WASHINGTON...SOUTHERN ISANTI...CHISAGO AND EASTERN ANOKA
COUNTIES UNTIL 945 AM CDT...

AT 842 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 6
MILES NORTHWEST OF CAMBRIDGE TO WYOMING TO FOREST LAKE TO
CENTERVILLE...MOVING EAST AT 55 MPH. NICKEL SIZE HAIL MAY ALSO
ACCOMPANY THESE DAMAGING WINDS.

LOCATIONS IMPACTED INCLUDE...
  NORTH BRANCH...BALSAM LAKE...AMERY...CHISAGO CITY...LINDSTROM...
  SCANDIA...BRANCH...CENTER CITY...MARINE ON ST CROIX...HARRIS...
  SHAFER...OSCEOLA...RUSH CITY...TAYLORS FALLS AND DRESSER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE... WITH 
NUMEROUS DOWNED TREES. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE 
AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4572 9214 4522 9215 4521 9276 4517 9276
      4512 9326 4556 9346 4557 9314 4573 9314
      4573 9286 4565 9287 4565 9254 4574 9252
      4574 9216
TIME...MOT...LOC 1348Z 261DEG 50KT 4563 9320 4537 9294
          4525 9289 4516 9293
WIND...HAIL 60MPH 0.88IN

$$
594 
WWUS53 KMPX 021357
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
857 AM CDT TUE AUG 2 2011

MNC003-025-059-163-WIC095-021445-
/O.CON.KMPX.SV.W.0228.000000T0000Z-110802T1445Z/
ANOKA MN-CHISAGO MN-ISANTI MN-WASHINGTON MN-POLK WI-
857 AM CDT TUE AUG 2 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR POLK...
NORTHERN WASHINGTON...SOUTHEASTERN ISANTI...CHISAGO AND NORTHEASTERN
ANOKA COUNTIES UNTIL 945 AM CDT...

AT 852 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF 
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS UP TO 70 
MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM GRANDY 
TO LINDSTROM TO SCANDIA TO MARINE ON ST CROIX...MOVING EAST AT 55 
MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.

LOCATIONS IMPACTED INCLUDE...
  BALSAM LAKE...AMERY...OSCEOLA...RUSH CITY...TAYLORS FALLS...
  DRESSER...ST CROIX FALLS...WOLF CREEK...WANDEROOS...CENTURIA...
  CUSHING...MILLTOWN...LUCK...RANGE AND CLEAR LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT
TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS. 
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM 
WINDOWS.

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE... WITH 
NUMEROUS TREES DOWNED. THIS IS A DANGEROUS SITUATION. SEEK SHELTER 
NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4572 9214 4523 9216 4522 9218 4521 9286
      4519 9301 4557 9337 4557 9314 4573 9314
      4573 9286 4565 9287 4565 9254 4574 9252
      4574 9216
TIME...MOT...LOC 1357Z 261DEG 50KT 4565 9302 4539 9276
          4527 9271 4518 9275
WIND...HAIL 70MPH 0.75IN

$$
538 
WWUS53 KMPX 021407
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
907 AM CDT TUE AUG 2 2011

MNC003-163-021422-
/O.CAN.KMPX.SV.W.0228.000000T0000Z-110802T1445Z/
ANOKA MN-WASHINGTON MN-
907 AM CDT TUE AUG 2 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WASHINGTON AND
NORTHEASTERN ANOKA COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
WARNED AREA... ALTHOUGH WIND GUSTS OF 40 TO 50 MPH ARE STILL 
POSSIBLE.

LAT...LON 4572 9214 4535 9216 4530 9240 4530 9302
      4540 9302 4545 9314 4573 9314 4573 9286
      4565 9287 4565 9254 4574 9252 4573 9228
      4574 9226
TIME...MOT...LOC 1407Z 250DEG 53KT 4572 9284 4560 9260
          4548 9259 4525 9263

$$

MNC025-059-WIC095-021445-
/O.CON.KMPX.SV.W.0228.000000T0000Z-110802T1445Z/
CHISAGO MN-ISANTI MN-POLK WI-
907 AM CDT TUE AUG 2 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR POLK...
SOUTHEASTERN ISANTI AND CHISAGO COUNTIES UNTIL 945 AM CDT...

AT 905 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 70 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
RUSH CITY TO CUSHING TO CENTURIA TO 6 MILES NORTHEAST OF MARINE ON ST
CROIX...MOVING EAST AT 60 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY
THESE DAMAGING WINDS.

LOCATIONS IMPACTED INCLUDE...
  BALSAM LAKE...AMERY...CENTURIA...MILLTOWN...LUCK...WANDEROOS...
  FREDERIC...LEWIS...CLAM FALLS...RANGE...MCKINLEY...DERONDA AND
  JOEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT
TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS. 
HAIL IS ALSO EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND 
WINDOWS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY 
FROM WINDOWS.

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE. THIS 
IS A DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY 
STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4572 9214 4535 9216 4530 9240 4530 9302
      4540 9302 4545 9314 4573 9314 4573 9286
      4565 9287 4565 9254 4574 9252 4573 9228
      4574 9226
TIME...MOT...LOC 1407Z 250DEG 53KT 4572 9284 4560 9260
          4548 9259 4525 9263
WIND...HAIL 70MPH 0.75IN

$$
191 
WWUS53 KMPX 021419
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
919 AM CDT TUE AUG 2 2011

MNC059-021434-
/O.CAN.KMPX.SV.W.0228.000000T0000Z-110802T1445Z/
ISANTI MN-
919 AM CDT TUE AUG 2 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ISANTI COUNTY IS
CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
WARNED AREA.

LAT...LON 4572 9215 4535 9216 4530 9240 4531 9288
      4556 9302 4573 9297 4573 9286 4565 9287
      4565 9254 4574 9252 4573 9228 4574 9226
TIME...MOT...LOC 1419Z 250DEG 53KT 4578 9260 4566 9236
          4554 9235 4533 9244

$$

MNC025-WIC095-021445-
/O.CON.KMPX.SV.W.0228.000000T0000Z-110802T1445Z/
CHISAGO MN-POLK WI-
919 AM CDT TUE AUG 2 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR POLK AND
CHISAGO COUNTIES UNTIL 945 AM CDT...

AT 914 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
GRANTSBURG TO FREDERIC TO MILLTOWN TO WANDEROOS...MOVING EAST AT 60
MPH.

LOCATIONS IMPACTED INCLUDE...
  LEWIS...CLAM FALLS...RANGE...MCKINLEY AND JOEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!

&&

LAT...LON 4572 9215 4535 9216 4530 9240 4531 9288
      4556 9302 4573 9297 4573 9286 4565 9287
      4565 9254 4574 9252 4573 9228 4574 9226
TIME...MOT...LOC 1419Z 250DEG 53KT 4578 9260 4566 9236
          4554 9235 4533 9244
WIND...HAIL 60MPH <.75IN

$$
422 
WWUS53 KMPX 021427
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
927 AM CDT TUE AUG 2 2011

MNC025-021441-
/O.CAN.KMPX.SV.W.0228.000000T0000Z-110802T1445Z/
CHISAGO MN-
927 AM CDT TUE AUG 2 2011

...THE SEVERE THUNDERSTORM WARNING FOR CHISAGO COUNTY IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
WARNED AREA... ALTHOUGH WIND GUSTS OF 40 TO 50 MPH ARE STILL 
POSSIBLE... ALONG WITH HEAVY DOWNPOURS AND FREQUENT LIGHTNING.

LAT...LON 4572 9215 4535 9216 4530 9239 4530 9252
      4553 9273 4554 9272 4557 9278 4556 9287
      4561 9289 4565 9287 4565 9254 4574 9252
      4574 9226
TIME...MOT...LOC 1426Z 248DEG 49KT 4581 9250 4569 9226
          4557 9225 4536 9235

$$

WIC095-021445-
/O.CON.KMPX.SV.W.0228.000000T0000Z-110802T1445Z/
POLK WI-
927 AM CDT TUE AUG 2 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR POLK COUNTY
UNTIL 945 AM CDT...

AT 924 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 70 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7
MILES EAST OF GRANTSBURG TO CLAM FALLS TO 6 MILES WEST OF MCKINLEY TO
AMERY...MOVING EAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  RANGE...MCKINLEY AND JOEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT
TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO WINDOWS. EVACUATE
MOBILE HOMES AS THEY MAY BE OVERTURNED. SEEK SHELTER NOW INSIDE A
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4572 9215 4535 9216 4530 9239 4530 9252
      4553 9273 4554 9272 4557 9278 4556 9287
      4561 9289 4565 9287 4565 9254 4574 9252
      4574 9226
TIME...MOT...LOC 1426Z 248DEG 49KT 4581 9250 4569 9226
          4557 9225 4536 9235
WIND...HAIL 70MPH <.75IN

$$

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 2, 12:00 AM CDTRiver Flood WarningMPXTodd57 hr
Aug 2, 5:26 AM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Swift, Yellow Medicine64 min
Aug 2, 6:06 AM CDTSpecial Weather StatementMPXPope, Stevens54 min
Aug 2, 6:41 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Pope, Stearns, Swift51 min
Aug 2, 6:56 AM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Meeker, Swift64 min
Aug 2, 7:23 AM CDTSevere Thunderstorm WarningMPXMeeker, Sherburne, Stearns, Wright67 min
Aug 2, 7:24 AM CDTSpecial Weather StatementMPXBenton, Carver, Isanti, McLeod, Sherburne, Sibley and 1 more36 min
Aug 2, 7:39 AM CDTSevere Thunderstorm WarningMPXBenton, Stearns51 min
Aug 2, 7:57 AM CDTSevere Thunderstorm WarningMPXAnoka, Hennepin, Isanti, Ramsey, Sherburne, Wright48 min
Aug 2, 8:05 AM CDTSevere Thunderstorm WarningMPXBenton, Isanti, Kanabec, Mille Lacs55 min
Aug 1, 9:09 PM CDTSpecial Weather StatementMPXBarron, Chippewa81 min
Aug 1, 10:36 PM CDTSpecial Weather StatementMPXRusk54 min
Aug 2, 3:29 AM CDTSpecial Weather StatementMPXRusk46 min
Aug 2, 4:17 AM CDTSpecial Weather StatementMPXBarron, Polk, Rusk58 min
Aug 2, 4:36 AM CDTSevere Thunderstorm WarningMPXBarron, Polk, Rusk54 min
Aug 2, 4:44 AM CDTAreal Flood AdvisoryMPXBarron, Chippewa, Dunn, Polk, Rusk6 hr
Aug 2, 5:29 AM CDTSevere Thunderstorm WarningMPXBarron, Chippewa, Dunn, Rusk61 min
Aug 2, 9:13 AM CDTSevere Thunderstorm WarningMPXBarron, Polk62 min
Aug 2, 9:42 AM CDTSevere Thunderstorm WarningMPXBarron, Rusk93 min
Aug 2, 9:56 AM CDTFlash Flood WarningMPXBarron, Rusk5 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2011Severe Thunderstorm Warnings in Wisconsin, 2011Every severe thunderstorm warning 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.