Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 225, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 2, 2011, 7:39 AM CDT for Benton County, Stearns County, Minnesota. It was in force for 51 min. 5 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
- Aug 2, 2011, 7:39 AM CDT (12:39 UTC)
- Expired
- Aug 2, 2011, 8:30 AM CDT
- In force
- 51 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Benton County, MN, Stearns County, MN
The radar
The Minneapolis radar (KMPX), 106 km from the middle of the area, began a volume at 12:43 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 |
|---|---|---|---|
| Aug 2, 7:51 AM CDT | TSTM WND DMG | 2 S Avon, MN | TWO 10 INCH DIAMETER TREES DOWN. |
| Aug 2, 8:05 AM CDT | TSTM WND DMG | 2 N St Joseph, MN | SEVERAL 10 AND 12 INCH DIAMETER TREES DOWN. |
| Aug 2, 8:08 AM CDT | TSTM WND DMG | Sauk Rapids, MN | LOT OF TREES DOWN AROUND TOWN. |
| Aug 2, 8:14 AM CDT | TSTM WND DMG | Collegeville, MN | 14 INCH PINE TREE BROKEN OFF AT ST JOHNS UNIVERSITY. |
| Aug 2, 8:30 AM CDT | TSTM WND DMG | N Glendorado, MN | A FEW 6-10 INCH DIAMETER TREES DOWN |
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 |
|---|---|---|---|
| Aug 2, 5:23 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 0.7 hours before the alert went out and 105 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
- 2133 J/kg
- Mixed-layer CIN
- -209 J/kg
- Mixed-layer LCL
- 850 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 233 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
109
WUUS53 KMPX 021239
SVRMPX
MNC009-145-021330-
/O.NEW.KMPX.SV.W.0225.110802T1239Z-110802T1330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
739 AM CDT TUE AUG 2 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
BENTON COUNTY IN CENTRAL MINNESOTA...
NORTHEASTERN STEARNS COUNTY IN CENTRAL MINNESOTA...
* UNTIL 830 AM CDT
* AT 738 AM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 5 MILES NORTHEAST
OF FREEPORT TO AVON TO ST JOSEPH...AND MOVING EAST AT 40 MPH.
PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
LOCATIONS IN THE WARNING INCLUDE...
AVON...
ALBANY...
FREEPORT...
ST ROSA...
FARMING...
COLLEGEVILLE...
ST JOSEPH...
HOLDINGFORD...
WAITE PARK...
SARTELL...
ST STEPHEN...
SAUK RAPIDS...
RICE...
MAYHEW...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND HAIL. SEEK SHELTER NOW INSIDE
A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
WIND DAMAGE WITH THIS STORM WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.
&&
LAT...LON 4581 9375 4557 9376 4556 9415 4549 9465
4577 9483 4578 9429 4582 9435 4582 9377
TIME...MOT...LOC 1239Z 258DEG 36KT 4571 9459 4564 9445
4552 9437
WIND...HAIL 60MPH 0.75IN
$$1 follow-up statement
179
WWUS53 KMPX 021310
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
810 AM CDT TUE AUG 2 2011
MNC145-021325-
/O.CAN.KMPX.SV.W.0225.000000T0000Z-110802T1330Z/
STEARNS MN-
810 AM CDT TUE AUG 2 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN STEARNS COUNTY IS
CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.
LAT...LON 4577 9375 4557 9376 4556 9415 4562 9421
4567 9419 4571 9423 4572 9422 4574 9426
4577 9427 4582 9435 4582 9377
TIME...MOT...LOC 1310Z 258DEG 36KT 4577 9415 4570 9402
4558 9394
$$
MNC009-021330-
/O.CON.KMPX.SV.W.0225.000000T0000Z-110802T1330Z/
BENTON MN-
810 AM CDT TUE AUG 2 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR BENTON COUNTY
UNTIL 830 AM CDT...
AT 806 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
RICE TO MAYHEW TO PARENT...MOVING EAST AT 40 MPH.
LOCATIONS IMPACTED INCLUDE...
FOLEY...GILMAN...LITTLE ROCK...RONNEBY...GLENDORADO AND RUM RIVER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT
TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO WINDOWS. EVACUATE
MOBILE HOMES AS THEY MAY BE OVERTURNED. SEEK SHELTER NOW INSIDE A
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4577 9375 4557 9376 4556 9415 4562 9421
4567 9419 4571 9423 4572 9422 4574 9426
4577 9427 4582 9435 4582 9377
TIME...MOT...LOC 1310Z 258DEG 36KT 4577 9415 4570 9402
4558 9394
WIND...HAIL 70MPH <.75IN
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 12:00 AM CDT | River Flood Warning | MPX | Todd | 57 hr |
| Aug 2, 5:26 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Swift, Yellow Medicine | 64 min |
| Aug 2, 6:06 AM CDT | Special Weather Statement | MPX | Pope, Stevens | 54 min |
| Aug 2, 6:41 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Pope, Stearns, Swift | 51 min |
| Aug 2, 6:56 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Meeker, Swift | 64 min |
| Aug 2, 7:23 AM CDT | Severe Thunderstorm Warning | MPX | Meeker, Sherburne, Stearns, Wright | 67 min |
| Aug 2, 7:24 AM CDT | Special Weather Statement | MPX | Benton, Carver, Isanti, McLeod, Sherburne, Sibley and 1 more | 36 min |
| Aug 2, 7:57 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin, Isanti, Ramsey, Sherburne, Wright | 48 min |
| Aug 2, 8:05 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Isanti, Kanabec, Mille Lacs | 55 min |
| Aug 2, 8:31 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Isanti, Washington | 74 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.