Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 71, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 30, 2011, 9:38 PM CDT for Lac qui Parle County, Yellow Medicine County, Minnesota. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 30, 2011, 9:38 PM CDT (02:38 UTC)
- Expired
- May 30, 2011, 10:29 PM CDT
- In force
- 51 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Lac qui Parle County, MN, Yellow Medicine County, MN
The radar
The Sioux Falls radar (KFSD), 162 km from the middle of the area, began a volume at 02:39 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.
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 30, 3:52 PM CDT | Tornado Watch | SPC | 7 hr |
| May 30, 8:43 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 2.6 hours before the alert went out and 180 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
- 2145 J/kg
- Mixed-layer CIN
- -246 J/kg
- Mixed-layer LCL
- 1594 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 234 m²/s²
- 0-3 km storm-relative helicity
- 408 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.8
The text
As transmitted, in the capitals the NWS used until 2016.
899
WUUS53 KMPX 310238
SVRMPX
MNC073-173-310400-
/O.NEW.KMPX.SV.W.0071.110531T0238Z-110531T0400Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
938 PM CDT MON MAY 30 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA...
YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA...
* UNTIL 1100 PM CDT
* AT 935 PM 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 7
MILES WEST OF LAKE COCHRANE REC AREA TO PIPESTONE...AND MOVING
NORTHEAST AT 55 MPH.
LOCATIONS IN THE WARNING INCLUDE...
MADISON...
BURR...
CANBY...
MARIETTA...
NASSAU...
ST LEO...
BELLINGHAM...
PROVIDENCE...
LOUISBURG...
SPRING CREEK...
BOYD...
CLARKFIELD...
HAZEL RUN...
HANLEY FALLS...
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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT TUESDAY MORNING
FOR SOUTHERN MINNESOTA.
&&
LAT...LON 4527 9646 4528 9643 4526 9632 4520 9612
4499 9583 4495 9580 4494 9574 4490 9571
4488 9564 4479 9551 4478 9553 4470 9537
4454 9536 4454 9560 4462 9562 4462 9645
TIME...MOT...LOC 0238Z 215DEG 47KT 4474 9657 4404 9628
WIND...HAIL 60MPH 1.00IN
$$3 follow-up statements
902
WWUS53 KMPX 310254
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
954 PM CDT MON MAY 30 2011
MNC073-173-310400-
/O.CON.KMPX.SV.W.0071.000000T0000Z-110531T0400Z/
LAC QUI PARLE MN-YELLOW MEDICINE MN-
954 PM CDT MON MAY 30 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR YELLOW
MEDICINE AND LAC QUI PARLE COUNTIES UNTIL 1100 PM CDT...
AT 949 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM GARY
TO RUTHTON...MOVING NORTHEAST AT 55 MPH. PENNY SIZE HAIL MAY ALSO
ACCOMPANY THESE DAMAGING WINDS.
LOCATIONS IMPACTED INCLUDE...
MADISON...BURR...CANBY...MARIETTA...ST LEO...BELLINGHAM...
LOUISBURG...SPRING CREEK...BOYD...CLARKFIELD...HANLEY FALLS...
WOOD LAKE...DAWSON AND CERRO GORDO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
&&
LAT...LON 4527 9646 4528 9643 4526 9632 4520 9612
4499 9583 4495 9580 4494 9574 4490 9571
4488 9564 4479 9551 4478 9553 4470 9537
4454 9536 4454 9560 4462 9562 4462 9645
TIME...MOT...LOC 0253Z 215DEG 47KT 4490 9641 4420 9612
WIND...HAIL 60MPH 0.75IN
$$050
WWUS53 KMPX 310319
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1019 PM CDT MON MAY 30 2011
MNC073-173-310400-
/O.CON.KMPX.SV.W.0071.000000T0000Z-110531T0400Z/
LAC QUI PARLE MN-YELLOW MEDICINE MN-
1019 PM CDT MON MAY 30 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR YELLOW
MEDICINE AND LAC QUI PARLE COUNTIES UNTIL 1100 PM CDT...
AT 1016 PM 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 SOUTH OF MADISON TO MARSHALL...MOVING NORTHEAST AT 55 MPH.
LOCATIONS IMPACTED INCLUDE...
MADISON...SPRING CREEK...BOYD...CLARKFIELD...HAZEL RUN...HANLEY
FALLS...WOOD LAKE...ECHO...DAWSON AND CERRO GORDO.
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.
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH 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.
&&
LAT...LON 4520 9612 4499 9583 4495 9580 4494 9574
4490 9571 4488 9564 4479 9551 4477 9552
4470 9537 4454 9536 4454 9560 4462 9562
4463 9609 4470 9625 4493 9639
TIME...MOT...LOC 0320Z 215DEG 47KT 4497 9614 4448 9575
WIND...HAIL 60MPH <.75IN
$$412
WWUS53 KMPX 310329
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1029 PM CDT MON MAY 30 2011
MNC073-173-310344-
/O.CAN.KMPX.SV.W.0071.000000T0000Z-110531T0400Z/
LAC QUI PARLE MN-YELLOW MEDICINE MN-
1029 PM CDT MON MAY 30 2011
...THE SEVERE THUNDERSTORM WARNING FOR YELLOW MEDICINE AND LAC QUI
PARLE COUNTIES IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY...HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THESE
THUNDERSTORMS.
IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A TORNADO
WATCH REMAINS IN EFFECT UNTIL 200 AM CDT.
LAT...LON 4520 9612 4499 9583 4495 9580 4494 9574
4490 9571 4488 9564 4479 9551 4477 9552
4470 9537 4454 9536 4454 9560 4462 9562
4463 9609 4470 9625 4493 9639
TIME...MOT...LOC 0329Z 215DEG 47KT 4507 9604 4457 9565
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 8:35 PM CDT | Special Weather Statement | MPX | Stevens | 40 min |
| May 30, 8:40 PM CDT | Severe Thunderstorm Warning | MPX | Stevens | 20 min |
| May 30, 8:59 PM CDT | Severe Thunderstorm Warning | MPX | Stevens | 16 min |
| May 30, 9:57 PM CDT | Severe Thunderstorm Warning | MPX | Douglas | 48 min |
| May 30, 10:11 PM CDT | Special Weather Statement | MPX | Redwood | 79 min |
| May 30, 10:41 PM CDT | Special Weather Statement | MPX | Todd | 49 min |
| May 30, 11:07 PM CDT | Special Weather Statement | MPX | Morrison | 38 min |
| May 30, 11:30 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 30 min |
| May 30, 11:59 PM CDT | Special Weather Statement | MPX | Kanabec | 31 min |
| May 31, 3:40 AM CDT | Wind Advisory | MPX | Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 36 more | 18 hr |
| May 31, 10:51 AM CDT | River Flood Warning | MPX | Carver, Hennepin, Scott | 70 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.