Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 220, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 2, 2011, 5:26 AM CDT for 4 counties in Minnesota. It was in force for 64 min. 2 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, 5:26 AM CDT (10:26 UTC)
- Expired
- Aug 2, 2011, 6:30 AM CDT
- In force
- 64 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Chippewa County, MN, Lac qui Parle County, MN, Swift County, MN, Yellow Medicine County, MN
The radar
The Sioux Falls radar (KFSD), 181 km from the middle of the area, began a volume at 10:25 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 |
|---|---|---|---|
| Aug 2, 5:59 AM CDT | TSTM WND DMG | Louisburg, MN | POWER LINE DOWN ALONG WITH 2 LARGE BRANCHES |
| Aug 2, 6:10 AM CDT | TSTM WND GST 50 | 1 Nw Boyd, 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 |
|---|---|---|---|
| Aug 2, 5:23 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 10.4 hours before the alert went out and 181 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
- 4798 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 1973 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 176 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 8.3
The text
As transmitted, in the capitals the NWS used until 2016.
654
WUUS53 KMPX 021026
SVRMPX
MNC023-073-151-173-021130-
/O.NEW.KMPX.SV.W.0220.110802T1026Z-110802T1130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
526 AM CDT TUE AUG 2 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA...
LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA...
WESTERN SWIFT COUNTY IN WEST CENTRAL MINNESOTA...
YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA...
* UNTIL 630 AM CDT
* AT 521 AM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 13
MILES WEST OF ALBEE TO 6 MILES NORTHWEST OF MORITZ TO LAKE COCHRANE
REC AREA...AND MOVING EAST AT 50 MPH.
LOCATIONS IN THE WARNING INCLUDE...
MADISON...
MONTEVIDEO...
GRANITE FALLS...
BURR...
CANBY...
MARIETTA...
NASSAU...
ST LEO...
PROVIDENCE...
BELLINGHAM...
LOUISBURG...
BOYD...
SPRING CREEK...
CLARKFIELD...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
REPORT ANY SIGNIFICANT WIND OR HAIL DAMAGE TO THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.
&&
LAT...LON 4526 9644 4527 9637 4526 9629 4523 9627
4523 9623 4520 9618 4520 9612 4541 9612
4541 9566 4505 9552 4465 9554 4465 9643
TIME...MOT...LOC 1026Z 258DEG 43KT 4512 9673 4491 9658
4477 9646
WIND...HAIL 60MPH 1.00IN
$$1 follow-up statement
738
WWUS53 KMPX 021101
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
601 AM CDT TUE AUG 2 2011
MNC023-073-151-173-021130-
/O.CON.KMPX.SV.W.0220.000000T0000Z-110802T1130Z/
LAC QUI PARLE MN-CHIPPEWA MN-SWIFT MN-YELLOW MEDICINE MN-
601 AM CDT TUE AUG 2 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR YELLOW
MEDICINE...WESTERN SWIFT...WESTERN CHIPPEWA AND LAC QUI PARLE
COUNTIES IN WEST CENTRAL MINNESOTA UNTIL 630 AM CDT...
AT 557 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG
A LINE EXTENDING FROM ARTICHOKE TO MADISON TO PROVIDENCE...MOVING
EAST AT 50 MPH.
LOCATIONS IMPACTED INCLUDE...
MONTEVIDEO...GRANITE FALLS...APPLETON...BOYD...SPRING CREEK...
MILAN...HOLLOWAY...CLARKFIELD...WATSON...BIG BEND CITY...HAZEL
RUN...DANVERS...HANLEY FALLS...CLONTARF AND DAWSON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.
&&
LAT...LON 4466 9639 4523 9640 4527 9637 4526 9629
4523 9627 4523 9623 4520 9618 4520 9612
4541 9612 4541 9566 4505 9552 4465 9554
TIME...MOT...LOC 1102Z 268DEG 42KT 4537 9616 4504 9610
4485 9607
WIND...HAIL 60MPH 1.00IN
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 12:00 AM CDT | River Flood Warning | MPX | Todd | 57 hr |
| Aug 2, 6:06 AM CDT | Special Weather Statement | MPX | Pope, Stevens | 54 min |
| Aug 2, 6:41 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Pope, Stearns, Swift | 51 min |
| Aug 2, 6:56 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Meeker, Swift | 64 min |
| Aug 2, 7:23 AM CDT | Severe Thunderstorm Warning | MPX | Meeker, Sherburne, Stearns, Wright | 67 min |
| Aug 2, 7:24 AM CDT | Special Weather Statement | MPX | Benton, Carver, Isanti, McLeod, Sherburne, Sibley and 1 more | 36 min |
| Aug 2, 7:39 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Stearns | 51 min |
| Aug 2, 7:57 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin, Isanti, Ramsey, Sherburne, Wright | 48 min |
| Aug 2, 8:05 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Isanti, Kanabec, Mille Lacs | 55 min |
| Aug 2, 8:31 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Isanti, Washington | 74 min |
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.