Alert archive / Minnesota / Tornado Warnings in 2011
Tornado Warning 29, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Jul 1, 2011, 4:37 PM CDT for Redwood County, Renville County, Minnesota. It was in force for 23 min. 7 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
- Jul 1, 2011, 4:37 PM CDT (21:37 UTC)
- Expired
- Jul 1, 2011, 5:00 PM CDT
- In force
- 23 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Redwood County, MN, Renville County, MN
The radar
The Minneapolis radar (KMPX), 127 km from the middle of the area, began a volume at 21:40 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 |
|---|---|---|---|
| Jul 1, 4:51 PM CDT | TSTM WND GST 59 | Redwood Falls, MN | MEASURED AT REDWOOD FALLS AIRPORT |
| Jul 1, 4:56 PM CDT | TSTM WND GST 62 | Redwood Falls, MN | MEASURED AT REDWOOD VALLEY HIGH SCHOOL |
| Jul 1, 4:57 PM CDT | TSTM WND DMG | Redwood Falls, MN | 5 INCH DIAMETER BRANCHES DOWN |
| Jul 1, 4:57 PM CDT | HAIL 0.75 | Redwood Falls, MN | |
| Jul 1, 4:58 PM CDT | TSTM WND GST 78 | Redwood Falls, MN | MEASURED WITH CAR ANEMOMETER. |
| Jul 1, 5:00 PM CDT | HAIL 1.25 | Redwood Falls, MN | |
| Jul 1, 5:07 PM CDT | FUNNEL CLOUD | Franklin, 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 |
|---|---|---|---|
| Jul 1, 2:08 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.6 hours before the alert went out and 124 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
- 3970 J/kg
- Mixed-layer CIN
- -245 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.7
The text
As transmitted, in the capitals the NWS used until 2016.
248
WFUS53 KMPX 012137
TORMPX
MNC127-129-012200-
/O.NEW.KMPX.TO.W.0029.110701T2137Z-110701T2200Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
437 PM CDT FRI JUL 1 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN REDWOOD COUNTY IN SOUTHWEST MINNESOTA...
SOUTH CENTRAL RENVILLE COUNTY IN CENTRAL MINNESOTA...
* UNTIL 500 PM CDT
* AT 431 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR
SEAFORTH. RADAR SHOWED THE TORNADIC STORM MOVING AT EAST AT 50 MPH.
* LOCATIONS IN THE WARNING INCLUDE...
REDWOOD FALLS...
SEAFORTH...
NORTH REDWOOD...
MORTON...
FRANKLIN...
DELHI...
FRANKLIN...
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 4454 9539 4455 9536 4458 9536 4469 9491
4448 9474 4447 9481 4450 9486 4446 9487
4440 9534
TIME...MOT...LOC 2137Z 254DEG 43KT 4451 9524
$$1 follow-up statement
324
WWUS53 KMPX 012145
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
445 PM CDT FRI JUL 1 2011
MNC127-129-012200-
/O.CON.KMPX.TO.W.0029.000000T0000Z-110701T2200Z/
REDWOOD MN-RENVILLE MN-
445 PM CDT FRI JUL 1 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL RENVILLE AND
NORTHEASTERN REDWOOD COUNTIES UNTIL 500 PM CDT...
AT 440 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO. THIS
TORNADO WAS LOCATED NEAR SEAFORTH...OR 9 MILES WEST OF REDWOOD
FALLS...MOVING EAST AT 60 MPH.
LOCATIONS IMPACTED INCLUDE...
REDWOOD FALLS...NORTH REDWOOD...MORTON AND FRANKLIN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.
&&
LAT...LON 4454 9539 4455 9536 4458 9536 4469 9491
4448 9474 4447 9481 4450 9486 4446 9487
4440 9534
TIME...MOT...LOC 2145Z 253DEG 53KT 4454 9518
$$
JLTThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 4:05 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Redwood, Renville, Yellow Medicine | 55 min |
| Jul 1, 4:31 PM CDT | Severe Thunderstorm Warning | MPX | Meeker, Wright | 59 min |
| Jul 1, 4:53 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Redwood, Renville, Sibley | 67 min |
| Jul 1, 4:57 PM CDT | Tornado Warning | MPX | Redwood, Renville | 33 min |
| Jul 1, 4:59 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Morrison, Stearns | 61 min |
| Jul 1, 5:13 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, McLeod, Meeker, Renville, Sibley, Stearns and 1 more | 62 min |
| Jul 1, 5:27 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Isanti, Sherburne, Wright | 48 min |
| Jul 1, 5:38 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Kanabec, Mille Lacs, Morrison | 67 min |
| Jul 1, 5:52 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Benton, Hennepin, Isanti, Meeker, Mille Lacs and 3 more | 53 min |
| Jul 1, 6:02 PM CDT | Special Weather Statement | MPX | Carver, Hennepin, Scott | 43 min |
| Jul 1, 6:16 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Morrison, Stearns | 29 min |
| Jul 1, 6:20 PM CDT | Tornado Warning | MPX | Benton, Sherburne, Stearns | 25 min |
| Jul 1, 6:27 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Isanti, Kanabec, Mille Lacs | 63 min |
| Jul 1, 6:42 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Benton, Chisago, Hennepin, Isanti, Kanabec and 5 more | 63 min |
| Jul 1, 6:42 PM CDT | Severe Thunderstorm Warning | MPX | Martin | 33 min |
| Jul 1, 6:56 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Brown, Nicollet | 34 min |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.