Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 65, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Jul 15, 2011, 4:33 PM CDT for Fillmore County, Mower County, Olmsted County, Minnesota. It was in force for 42 min. 3 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 15, 2011, 4:33 PM CDT (21:33 UTC)
- Expired
- Jul 15, 2011, 5:15 PM CDT
- In force
- 42 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 0.5 in
- Wind
- 70.0 mph
Counties Fillmore County, MN, Mower County, MN, Olmsted County, MN
The radar
The La Crosse radar (KARX), 107 km from the middle of the area, began a volume at 21:35 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 15, 4:46 PM CDT | TSTM WND GST 51 | 1 Ene Dexter, MN | |
| Jul 15, 4:50 PM CDT | TSTM WND GST 61 | Grand Meadow, MN | ALSO 1.25 INCHES OF RAIN |
| Jul 15, 4:55 PM CDT | TSTM WND GST 50 | Stewartville, MN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.6 hours before the alert went out and 140 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
- 1183 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 585 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
771
WUUS53 KARX 152133
SVRARX
MNC045-099-109-152215-
/O.NEW.KARX.SV.W.0065.110715T2133Z-110715T2215Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
433 PM CDT FRI JUL 15 2011
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN FILLMORE COUNTY IN SOUTHEAST MINNESOTA...
NORTHEASTERN MOWER COUNTY IN SOUTHEAST MINNESOTA...
OLMSTED COUNTY IN SOUTHEAST MINNESOTA...
* UNTIL 515 PM CDT
* AT 431 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SEVERE THUNDERSTORMS ROUGHLY ALONG A LINE EXTENDING FROM BYRON TO
STEWARTVILLE TO ROSE CREEK...MOVING EAST AT 35 MPH. THESE STORMS
CAN PRODUCE DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. LOCAL LAW
ENFORCEMENT OFFICIALS HAVE ALREADY REPORTED WINDS OF 70 MPH WITH
THESE STORMS.
* THE SEVERE THUNDERSTORMS WILL BE NEAR...
ROCHESTER AND STEWARTVILLE AROUND 445 PM...
GRAND MEADOW AROUND 450 PM...
SPRING VALLEY AND EYOTA AROUND 505 PM...
CHATFIELD AROUND 510 PM...
DOVER AND WYKOFF AROUND 515 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THESE
STORMS...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. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4385 9270 4386 9267 4412 9268 4408 9211
4356 9213 4361 9271
TIME...MOT...LOC 2134Z 275DEG 30KT 4407 9261 4382 9262
4360 9287
WIND...HAIL 70MPH <.50IN
$$
JW1 follow-up statement
786
WWUS53 KARX 152200
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
500 PM CDT FRI JUL 15 2011
MNC045-099-109-152215-
/O.CON.KARX.SV.W.0065.000000T0000Z-110715T2215Z/
FILLMORE MN-MOWER MN-OLMSTED MN-
500 PM CDT FRI JUL 15 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR OLMSTED...
NORTHEASTERN MOWER AND WESTERN FILLMORE COUNTIES UNTIL 515 PM CDT...
AT 458 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WERE ROUGHLY ALONG A LINE EXTENDING FROM ROCHESTER TO
STEWARTVILLE TO SPRING VALLEY...MOVING EAST AT 35 MPH. THESE STORMS
CAN PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORMS WILL BE NEAR...
SPRING VALLEY AROUND 505 PM...
EYOTA AND WYKOFF AROUND 515 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THESE STORMS...PREPARE IMMEDIATELY FOR
DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS.
&&
LAT...LON 4383 9264 4386 9265 4408 9266 4408 9211
4356 9213 4360 9264
TIME...MOT...LOC 2200Z 275DEG 30KT 4403 9240 4382 9243
4361 9245
WIND...HAIL 60MPH <.50IN
$$
JWThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 3:57 AM CDT | Excessive Heat Watch | ARX | Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more | 36 hr |
| Jul 15, 2:52 PM CDT | Flash Flood Watch | ARX | Dodge, Olmsted, Wabasha, Winona | 13 hr |
| Jul 15, 3:43 PM CDT | Flash Flood Warning | ARX | Dodge, Olmsted, Wabasha | 3 hr |
| Jul 15, 4:04 PM CDT | Severe Thunderstorm Warning | ARX | Dodge, Mower | 41 min |
| Jul 15, 4:49 PM CDT | Areal Flood Advisory | ARX | Mower | 2 hr |
| Jul 15, 5:15 PM CDT | Severe Thunderstorm Warning | ARX | Fillmore | 45 min |
| Jul 15, 5:25 PM CDT | Flash Flood Warning | ARX | Mower | 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.