Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 72, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 30, 2011, 9:57 PM CDT for Douglas County, Minnesota. It was in force for 48 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, 9:57 PM CDT (02:57 UTC)
- Expired
- May 30, 2011, 10:45 PM CDT
- In force
- 48 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Douglas County, MN
The radar
The Minneapolis radar (KMPX), 191 km from the middle of the area, began a volume at 02:58 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, 3.0 hours before the alert went out and 189 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.
083
WUUS53 KMPX 310257
SVRMPX
MNC041-310345-
/O.NEW.KMPX.SV.W.0072.110531T0257Z-110531T0345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
957 PM CDT MON MAY 30 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA...
* UNTIL 1045 PM CDT
* AT 953 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
PRODUCING HALF DOLLAR SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED 5 MILES SOUTHWEST OF GARFIELD...OR
ABOUT 9 MILES WEST OF ALEXANDRIA...AND MOVING NORTH AT 50 MPH.
LOCATIONS IN THE WARNING INCLUDE...
BRANDON...
EVANSVILLE...
CARLOS...
MILLERVILLE...
MILTONA...
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 4612 9520 4611 9514 4576 9539 4576 9574
4612 9567
TIME...MOT...LOC 0258Z 191DEG 41KT 4594 9556
WIND...HAIL 60MPH 1.25IN
$$1 follow-up statement
874
WWUS53 KMPX 310323
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1023 PM CDT MON MAY 30 2011
MNC041-310345-
/O.CON.KMPX.SV.W.0072.000000T0000Z-110531T0345Z/
DOUGLAS MN-
1023 PM CDT MON MAY 30 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR DOUGLAS COUNTY
UNTIL 1045 PM CDT...
AT 1021 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR GARFIELD...OR
6 MILES WEST OF ALEXANDRIA...MOVING NORTH AT 45 MPH.
LOCATIONS IMPACTED INCLUDE...
GARFIELD...BRANDON...CARLOS...MILLERVILLE...MILTONA...BELLE RIVER
AND LEAF VALLEY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
&&
LAT...LON 4584 9569 4611 9563 4612 9520 4611 9514
4576 9539
TIME...MOT...LOC 0323Z 196DEG 41KT 4592 9548
WIND...HAIL 60MPH 1.00IN
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 9:38 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle, Yellow Medicine | 51 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.