Alert archive / Minnesota / Tornado Warnings in 2011
Tornado Warning 31, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Jul 1, 2011, 6:20 PM CDT for Benton County, Sherburne County, Stearns County, Minnesota. It was in force for 25 min. 4 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, 6:20 PM CDT (23:20 UTC)
- Expired
- Jul 1, 2011, 6:45 PM CDT
- In force
- 25 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Benton County, MN, Sherburne County, MN, Stearns County, MN
The radar
The Minneapolis radar (KMPX), 101 km from the middle of the area, began a volume at 23:22 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, 6:20 PM CDT | TSTM WND DMG | 2 Nnw St Cloud, MN | DOWNBURST WINDS OF 65 TO 70 MPH BEGAN HITTING THE NORTHERN PORTION OF ST CLOUD. HUNDREDS OF TREES WERE TOPPLED OR BROKEN ACROSS SEVERAL SQUARE MILES NEAR THE HOSPITAL. |
| Jul 1, 6:23 PM CDT | TORNADO | 5 Wsw St Cloud, MN | TORNADO RATED EF-0. IT TOUCHED DOWN JUST NORTHEAST OF THE INTERSECTION OF I-94 AND HIGHWAY 23. DOZENS OF TREES WERE BROKEN... TOPPLED OR PUSHED OVER AS THE TORNADO MOVED NORTHEAST. IT DISSIPATED IN WAITE PARK...ABOUT 1.5 MILES WEST OF THE INTERSECTION OF HIGHW |
| Jul 1, 6:32 PM CDT | TSTM WND DMG | E Sauk Rapids, MN | NUMEROUS TREES DOWN |
| Jul 1, 6:38 PM CDT | TSTM WND DMG | Sauk Rapids, MN | BENTON DRIVE BEING CLOSED DUE TO TREES IN ROADWAY. |
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, 11.3 hours before the alert went out and 100 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.
774 WFUS53 KMPX 012320 TORMPX MNC009-141-145-012345- /O.NEW.KMPX.TO.W.0031.110701T2320Z-110701T2345Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 620 PM CDT FRI JUL 1 2011 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... BENTON COUNTY IN CENTRAL MINNESOTA... NORTHWESTERN SHERBURNE COUNTY IN CENTRAL MINNESOTA... EASTERN STEARNS COUNTY IN CENTRAL MINNESOTA... * UNTIL 645 PM CDT * AT 617 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS NEAR ROCKVILLE... OR ABOUT 2 MILES SOUTHWEST OF PLEASANT LAKE...AND MOVING NORTH AT 40 MPH. * LOCATIONS IN THE WARNING INCLUDE... ST CLOUD... PLEASANT LAKE... LUXEMBURG... COLD SPRING... ST JOSEPH... WAITE PARK... COLLEGEVILLE... SAUK RAPIDS... SARTELL... ST STEPHEN... PARENT... MAYHEW... RICE... GILMAN... 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 4577 9438 4577 9377 4544 9406 4544 9444 TIME...MOT...LOC 2320Z 202DEG 36KT 4550 9429 $$ JLT
1 follow-up statement
246 WWUS53 KMPX 012333 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 633 PM CDT FRI JUL 1 2011 MNC009-141-145-012345- /O.CON.KMPX.TO.W.0031.000000T0000Z-110701T2345Z/ BENTON MN-SHERBURNE MN-STEARNS MN- 633 PM CDT FRI JUL 1 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN STEARNS... NORTHWESTERN SHERBURNE AND BENTON COUNTIES UNTIL 645 PM CDT... AT 631 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR SARTELL...OR NEAR ST CLOUD...MOVING NORTH AT 40 MPH. IN ADDITION...AT APPROXIMATELY 620 PM EDT...STRUCTURAL DAMAGE WAS REPORTED IN ROCKFORD WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... ST STEPHEN...PARENT...MAYHEW...RICE...GILMAN...FOLEY...RONNEBY AND OPOLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4577 9438 4577 9377 4544 9406 4544 9444 TIME...MOT...LOC 2333Z 202DEG 36KT 4562 9422 $$ JLT
The 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, 4:37 PM CDT | Tornado Warning | MPX | Redwood, Renville | 23 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, 6:27 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.