Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 132, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 10, 2011, 9:20 PM CDT for 6 counties in Minnesota. It was in force for 55 min. 4 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
- Jul 10, 2011, 9:20 PM CDT (02:20 UTC)
- Expired
- Jul 10, 2011, 10:15 PM CDT
- In force
- 55 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 75.0 mph
Counties Brown County, MN, McLeod County, MN, Nicollet County, MN, Redwood County, MN, Renville County, MN, Sibley County, MN
The radar
The Minneapolis radar (KMPX), 117 km from the middle of the area, began a volume at 02:19 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 |
|---|---|---|---|
| Jul 10, 9:25 PM CDT | TSTM WND GST 55 | Redwood Falls, MN | RWF AIRPORT ASOS |
| Jul 10, 9:30 PM CDT | TSTM WND DMG | 1 Se Franklin, MN | DAMAGE OVER A 3/4 MILE PATH |
| Jul 10, 10:04 PM CDT | TSTM WND DMG | 6 Wsw Fernando, MN | NUMEROUS LARGE BRANCHES DOWNED ALONG WITH SEVERAL ROAD SIGNS BLOWN DOWN. |
| Jul 10, 10:05 PM CDT | TSTM WND GST 65 | 2 Ne Stewart, 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 |
|---|---|---|---|
| Jul 10, 6:12 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 2.3 hours before the alert went out and 115 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
- 1401 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 1316 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 13 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.
163
WUUS53 KMPX 110220
SVRMPX
MNC015-085-103-127-129-143-110315-
/O.NEW.KMPX.SV.W.0132.110711T0220Z-110711T0315Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
920 PM CDT SUN JUL 10 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
BROWN COUNTY IN SOUTH CENTRAL MINNESOTA...
SOUTHWESTERN MCLEOD COUNTY IN CENTRAL MINNESOTA...
WESTERN NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA...
REDWOOD COUNTY IN SOUTHWEST MINNESOTA...
EASTERN RENVILLE COUNTY IN CENTRAL MINNESOTA...
WESTERN SIBLEY COUNTY IN CENTRAL MINNESOTA...
* UNTIL 1015 PM CDT
* AT 915 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DESTRUCTIVE WINDS IN
EXCESS OF 75 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 5 MILES NORTH OF BIRD ISLAND TO 5 MILES SOUTHEAST OF LUCAN...
AND MOVING EAST AT 45 MPH.
LOCATIONS IN THE WARNING INCLUDE...
REDWOOD FALLS...
NEW ULM...
NORTH REDWOOD...
WABASSO...
REVERE...
LAMBERTON...
MORTON...
CLEMENTS...
HECTOR...
FRANKLIN...
SANBORN...
LAKESIDE...
MORGAN...
BUFFALO 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.
EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. LARGE HAIL IS ALSO
EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.
REPORT ANY SIGNIFICANT WIND OR HAIL DAMAGE TO THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.
&&
LAT...LON 4428 9560 4432 9537 4489 9474 4489 9467
4482 9442 4470 9421 4424 9431 4426 9437
4411 9437 4410 9506 4411 9511 4419 9512
4420 9559
TIME...MOT...LOC 0220Z 291DEG 39KT 4482 9482 4434 9527
WIND...HAIL 75MPH 1.00IN
$$2 follow-up statements
373
WWUS53 KMPX 110245
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
945 PM CDT SUN JUL 10 2011
MNC015-085-103-127-129-143-110315-
/O.CON.KMPX.SV.W.0132.000000T0000Z-110711T0315Z/
BROWN MN-MCLEOD MN-NICOLLET MN-REDWOOD MN-RENVILLE MN-SIBLEY MN-
945 PM CDT SUN JUL 10 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
SIBLEY...EASTERN RENVILLE...REDWOOD...WESTERN NICOLLET...SOUTHWESTERN
MCLEOD AND BROWN COUNTIES UNTIL 1015 PM CDT...
AT 938 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 75 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
HECTOR TO SANBORN...MOVING SOUTHEAST AT 35 MPH. PENNY SIZE HAIL MAY
ALSO ACCOMPANY THESE DAMAGING WINDS.
TRAINED SPOTTER ESTIMATED 60 TO 70 MPH WINDS AND DAMAGE 1 MILE
SOUTHEAST OF FRANKLIN AROUND 930 PM CDT. ALSO...THE REDWOOD ASOS
ALSO GUSTED TO 55 MPH AT 926 PM CDT.
LOCATIONS IMPACTED INCLUDE...
NEW ULM...SANBORN...MORGAN...FAIRFAX...SPRINGFIELD...STEWART...
EVAN...BROWNTON...GIBBON...SLEEPY EYE...COMFREY...ST GEORGE...
WINTHROP...LAFAYETTE AND KLOSSNER.
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.
EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. 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 EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
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 4428 9560 4432 9537 4489 9474 4489 9467
4482 9442 4470 9421 4424 9431 4426 9437
4411 9437 4410 9506 4411 9511 4419 9512
4420 9559
TIME...MOT...LOC 0243Z 305DEG 30KT 4471 9467 4423 9512
WIND...HAIL 75MPH 0.75IN
$$847
WWUS53 KMPX 110302
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1002 PM CDT SUN JUL 10 2011
MNC015-085-103-127-129-143-110315-
/O.CON.KMPX.SV.W.0132.000000T0000Z-110711T0315Z/
BROWN MN-MCLEOD MN-NICOLLET MN-REDWOOD MN-RENVILLE MN-SIBLEY MN-
1002 PM CDT SUN JUL 10 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
SIBLEY...EASTERN RENVILLE...EASTERN REDWOOD...WESTERN NICOLLET...
SOUTHWESTERN MCLEOD AND BROWN COUNTIES UNTIL 1015 PM CDT...
AT 1001 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 75 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
WINTHROP TO COMFREY...MOVING SOUTHEAST AT 45 MPH. PENNY SIZE HAIL MAY
ALSO ACCOMPANY THESE DAMAGING WINDS.
LOCATIONS IMPACTED INCLUDE...
NEW ULM...WINTHROP...NEW AUBURN...LAFAYETTE...KLOSSNER...HANSKA AND
COURTLAND.
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.
EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. 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 EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
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 4411 9511 4419 9511 4428 9524 4489 9474
4489 9467 4482 9442 4470 9421 4424 9431
4426 9437 4411 9437 4410 9506
TIME...MOT...LOC 0302Z 305DEG 39KT 4457 9443 4409 9488
WIND...HAIL 75MPH 0.75IN
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 7:13 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Stevens, Swift | 62 min |
| Jul 10, 7:25 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Lac qui Parle, Pope, Renville, Swift and 1 more | 50 min |
| Jul 10, 7:36 PM CDT | Tornado Warning | MPX | Kandiyohi, Pope, Stearns | 39 min |
| Jul 10, 7:40 PM CDT | Tornado Warning | MPX | Lac qui Parle | 35 min |
| Jul 10, 7:42 PM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Stearns, Todd | 63 min |
| Jul 10, 7:48 PM CDT | Severe Thunderstorm Warning | MPX | Yellow Medicine | 57 min |
| Jul 10, 7:57 PM CDT | Tornado Warning | MPX | Swift | 33 min |
| Jul 10, 8:04 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Lac qui Parle, Renville, Yellow Medicine | 56 min |
| Jul 10, 8:11 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Meeker, Stearns | 64 min |
| Jul 10, 8:24 PM CDT | Areal Flood Advisory | MPX | Benton, Douglas, Kandiyohi, Morrison, Pope, Sherburne and 3 more | 3 hr |
| Jul 10, 8:29 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 46 min |
| Jul 10, 8:36 PM CDT | Tornado Warning | MPX | Kandiyohi, Meeker | 24 min |
| Jul 10, 8:40 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Redwood, Renville, Yellow Medicine | 65 min |
| Jul 10, 8:45 PM CDT | Severe Thunderstorm Warning | MPX | Stearns | 30 min |
| Jul 10, 8:52 PM CDT | Tornado Warning | MPX | Chippewa, Renville | 38 min |
| Jul 10, 9:06 PM CDT | Severe Thunderstorm Warning | MPX | Meeker, Sherburne, Stearns, Wright | 54 min |
| Jul 10, 9:30 PM CDT | Special Weather Statement | MPX | Blue Earth, Faribault, Freeborn, Le Sueur, Martin, Rice and 3 more | 75 min |
| Jul 10, 9:33 PM CDT | Special Weather Statement | MPX | Benton | 42 min |
| Jul 10, 9:37 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Carver, Hennepin, Sherburne, Wright | 53 min |
| Jul 10, 9:46 PM CDT | Special Weather Statement | MPX | Dakota, Ramsey, Scott, Washington | 74 min |
| Jul 10, 10:09 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Brown, Le Sueur, McLeod, Nicollet, Scott and 2 more | 66 min |
| Jul 10, 10:10 PM CDT | Tornado Warning | MPX | McLeod, Sibley | 23 min |
| Jul 10, 10:17 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Dakota, Hennepin, Ramsey, Washington | 58 min |
| Jul 10, 10:48 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Carver, Le Sueur, Rice, Scott, Steele and 1 more | 57 min |
| Jul 10, 11:02 PM CDT | Special Weather Statement | MPX | Faribault, Freeborn, Martin | 58 min |
| Jul 10, 11:13 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue, Rice, Steele | 47 min |
| Jul 10, 11:39 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue | 51 min |
| Jul 11, 1:34 AM CDT | Special Weather Statement | MPX | Faribault, Martin | 56 min |
| Jul 11, 2:11 AM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 64 min |
| Jul 11, 3:20 AM CDT | Areal Flood Advisory | MPX | Martin | 3 hr |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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.