Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 14, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 10, 2011, 6:49 PM CDT for Benton County, Morrison County, Minnesota. It was in force for 28 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 10, 2011, 6:49 PM CDT (23:49 UTC)
- Expired
- May 10, 2011, 7:17 PM CDT
- In force
- 28 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Benton County, MN, Morrison County, MN
The radar
The Minneapolis radar (KMPX), 129 km from the middle of the area, began a volume at 23:52 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 10, 5:53 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.8 hours before the alert went out and 127 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
- 1366 J/kg
- Mixed-layer CIN
- -392 J/kg
- Mixed-layer LCL
- 571 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
328
WUUS53 KMPX 102349
SVRMPX
MNC009-097-110030-
/O.NEW.KMPX.SV.W.0014.110510T2349Z-110511T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
649 PM CDT TUE MAY 10 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EXTREME NORTHWESTERN BENTON COUNTY IN CENTRAL MINNESOTA...
SOUTH CENTRAL MORRISON COUNTY IN CENTRAL MINNESOTA...
* UNTIL 730 PM CDT
* AT 647 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
PRODUCING GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED NEAR
ELMDALE...OR ABOUT 10 MILES SOUTH OF LITTLE FALLS...AND MOVING
NORTHEAST AT 25 MPH.
LOCATIONS IN THE WARNING INCLUDE...
LITTLE FALLS...
ROYALTON...
BUCKMAN...
GENOLA...
PIERZ...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
REPORT ANY SIGNIFICANT WIND OR HAIL DAMAGE TO THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT WEDNESDAY
MORNING FOR EAST CENTRAL MINNESOTA.
&&
LAT...LON 4600 9412 4591 9391 4577 9440 4577 9446
4578 9450 4604 9433
TIME...MOT...LOC 2349Z 218DEG 23KT 4584 9439
WIND...HAIL <50MPH 1.00IN
$$1 follow-up statement
563
WWUS53 KMPX 110017
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
717 PM CDT TUE MAY 10 2011
MNC009-097-110027-
/O.CAN.KMPX.SV.W.0014.000000T0000Z-110511T0030Z/
MORRISON MN-BENTON MN-
717 PM CDT TUE MAY 10 2011
...THE SEVERE THUNDERSTORM WARNING FOR BENTON AND SOUTH CENTRAL
MORRISON COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
LAT...LON 4600 9412 4591 9391 4577 9440 4577 9446
4578 9450 4604 9433
TIME...MOT...LOC 0017Z 218DEG 23KT 4598 9423
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 4:09 AM CDT | Special Weather Statement | MPX | Benton, Kanabec, Mille Lacs | 36 min |
| May 10, 5:04 AM CDT | Special Weather Statement | MPX | Mille Lacs | 41 min |
| May 10, 6:46 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Stearns | 44 min |
| May 10, 6:46 PM CDT | Severe Thunderstorm Warning | MPX | Morrison, Todd | 44 min |
| May 10, 6:53 PM CDT | Special Weather Statement | MPX | Carver, Hennepin, Scott, Wright | 52 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.