Alert archive / Minnesota / Tornado Warnings in 2011
Tornado Warning 41, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Jul 30, 2011, 7:10 PM CDT for Todd County, Minnesota. It was in force for 50 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
- Jul 30, 2011, 7:10 PM CDT (00:10 UTC)
- Expired
- Jul 30, 2011, 8:00 PM CDT
- In force
- 50 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
County Todd County, MN
The radar
The Minneapolis radar (KMPX), 153 km from the middle of the area, began a volume at 00:12 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 |
|---|---|---|---|
| Jul 30, 5:31 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 0.2 hours before the alert went out and 151 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
- 2387 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1239 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 176 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 8.4
The text
As transmitted, in the capitals the NWS used until 2016.
530
WFUS53 KMPX 310010
TORMPX
MNC153-310100-
/O.NEW.KMPX.TO.W.0041.110731T0010Z-110731T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
710 PM CDT SAT JUL 30 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHERN TODD COUNTY IN CENTRAL MINNESOTA...
* UNTIL 800 PM CDT
* AT 707 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A
TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS 5 MILES SOUTHEAST
OF CLOTHO...AND MOVING SOUTHEAST AT 20 MPH.
* LOCATIONS IN THE WARNING INCLUDE...
LONG PRAIRIE...
CLOTHO...
LITTLE SAUK...
GREY EAGLE...
NORTH SHORE...
PLEASANT BEACH...
BURTRUM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WHEN A TORNADO WARNING IS ISSUED BASED ON RADAR...IT MEANS THAT
STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY
BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.
&&
LAT...LON 4590 9464 4578 9465 4577 9490 4597 9513
4610 9496
TIME...MOT...LOC 0011Z 312DEG 19KT 4597 9494
$$1 follow-up statement
093
WWUS53 KMPX 310026
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
726 PM CDT SAT JUL 30 2011
MNC153-310100-
/O.CON.KMPX.TO.W.0041.000000T0000Z-110731T0100Z/
TODD MN-
726 PM CDT SAT JUL 30 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN TODD COUNTY UNTIL
800 PM CDT...
AT 721 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
WAS LOCATED 4 MILES SOUTHWEST OF LONG PRAIRIE...MOVING SOUTHEAST AT
20 MPH.
LOCATIONS IMPACTED INCLUDE...
LITTLE SAUK...GREY EAGLE...NORTH SHORE...PLEASANT BEACH AND
BURTRUM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.
&&
LAT...LON 4590 9464 4578 9465 4577 9490 4597 9513
4610 9496
TIME...MOT...LOC 0025Z 313DEG 15KT 4592 9490
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 7:15 PM CDT | Severe Thunderstorm Warning | MPX | Douglas | 30 min |
| Jul 30, 7:28 PM CDT | Areal Flood Advisory | MPX | Todd | 3 hr |
| Jul 30, 7:42 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 63 min |
| Jul 30, 7:45 PM CDT | Severe Thunderstorm Warning | MPX | Kanabec | 45 min |
| Jul 30, 8:01 PM CDT | Severe Thunderstorm Warning | MPX | Kanabec, Mille Lacs | 29 min |
| Jul 30, 8:15 PM CDT | Severe Thunderstorm Warning | MPX | Stearns | 60 min |
| Jul 30, 8:18 PM CDT | Severe Thunderstorm Warning | MPX | Isanti, Kanabec, Mille Lacs | 72 min |
| Jul 30, 8:22 PM CDT | Tornado Warning | MPX | Isanti, Kanabec, Mille Lacs | 38 min |
| Jul 30, 8:50 PM CDT | Severe Thunderstorm Warning | MPX | Isanti | 55 min |
| Jul 30, 8:53 PM CDT | Tornado Warning | MPX | Isanti | 35 min |
| Jul 30, 8:56 PM CDT | Areal Flood Advisory | MPX | Anoka, Isanti, Kanabec, Mille Lacs, Sherburne | 6 hr |
| Jul 30, 9:07 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Meeker, Stearns | 38 min |
| Jul 30, 9:20 PM CDT | Severe Thunderstorm Warning | MPX | Anoka | 55 min |
| Jul 30, 9:48 PM CDT | Special Weather Statement | MPX | McLeod, Meeker | 42 min |
| Jul 30, 9:50 PM CDT | Severe Thunderstorm Warning | MPX | Ramsey, Washington | 55 min |
| Jul 30, 9:54 PM CDT | Areal Flood Advisory | MPX | Anoka, Dakota, Hennepin, Ramsey, Washington | 6 hr |
| Jul 30, 10:21 PM CDT | Severe Thunderstorm Warning | MPX | Anoka | 39 min |
| Jul 30, 11:20 PM CDT | Special Weather Statement | MPX | Le Sueur | 40 min |
| Jul 30, 11:26 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur, Scott, Sibley | 31 min |
| Jul 30, 11:32 PM CDT | Special Weather Statement | MPX | Goodhue | 43 min |
| Jul 30, 11:55 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 35 min |
| Jul 31, 4:00 PM CDT | Heat Advisory | MPX | Anoka, Blue Earth, Brown, Carver, Chippewa, Dakota and 29 more | 28 hr |
Nearby
Tornado Warnings in Minnesota, 2011Every tornado warning in 2011Tornadoes 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.