Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 121, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 10, 2011, 6:44 PM CDT for Douglas County, Pope County, Stevens County, Minnesota. It was in force for 61 min. 8 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 10, 2011, 6:44 PM CDT (23:44 UTC)
- Expired
- Jul 10, 2011, 7:45 PM CDT
- In force
- 61 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Douglas County, MN, Pope County, MN, Stevens County, MN
The radar
The Minneapolis radar (KMPX), 199 km from the middle of the area, began a volume at 23:44 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 10, 7:25 PM CDT | TSTM WND DMG | Morris, MN | 4 INCH DIAMETER BRANCHES DOWN IN TOWN. |
| Jul 10, 7:25 PM CDT | TSTM WND GST 54 | Morris, MN | |
| Jul 10, 7:30 PM CDT | TSTM WND DMG | 6 Wsw Alexandria, MN | LARGE TREES DOWNED. |
| Jul 10, 7:40 PM CDT | TSTM WND DMG | Forada, MN | OVER A DOZEN LARGE TREES DOWNED WITHIN TOWN. ESTIMATED WIND SPEEDS 60 TO 80 MPH. |
| Jul 10, 7:47 PM CDT | TSTM WND GST 79 | Alexandria, MN | MNDOT I-94 AND MN HWY 29 MILE POST 46 |
| Jul 10, 7:50 PM CDT | TSTM WND DMG | 5 W Starbuck, MN | SCATTERED LARGE UP TO 30 DIAMETER TREES. |
| Jul 10, 7:52 PM CDT | TSTM WND DMG | Brandon, MN | LARGE TREES AND POWERLINES DOWN |
| Jul 10, 7:53 PM CDT | TSTM WND GST 63 | Alexandria, MN | AXN AIRPORT |
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 10, 6:12 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.7 hours before the alert went out and 196 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
- 275 J/kg
- Mixed-layer CIN
- -165 J/kg
- Mixed-layer LCL
- 1513 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -64 m²/s²
- 0-3 km storm-relative helicity
- -26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
245
WUUS53 KMPX 102344
SVRMPX
MNC041-121-149-110045-
/O.NEW.KMPX.SV.W.0121.110710T2344Z-110711T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
644 PM CDT SUN JUL 10 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA...
NORTHERN POPE COUNTY IN WEST CENTRAL MINNESOTA...
STEVENS COUNTY IN WEST CENTRAL MINNESOTA...
* UNTIL 745 PM CDT
* AT 639 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 5
MILES SOUTH OF FERGUS FALLS TO 7 MILES NORTHEAST OF CLINTON...AND
MOVING EAST AT 55 MPH.
LOCATIONS IN THE WARNING INCLUDE...
INTERSTATE 94...
MORRIS...
ALEXANDRIA...
GLENWOOD...
CHOKIO...
DONNELLY...
ALBERTA...
EVANSVILLE...
KENSINGTON...
HANCOCK...
CYRUS...
BRANDON...
MILLERVILLE...
GARFIELD...
LOWRY...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.
REPORT ANY SIGNIFICANT WIND OR HAIL DAMAGE TO THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.
&&
LAT...LON 4577 9577 4597 9578 4612 9576 4612 9519
4611 9514 4560 9514 4542 9610 4541 9622
4576 9625
TIME...MOT...LOC 2342Z 275DEG 47KT 4621 9599 4550 9626
WIND...HAIL 60MPH 1.00IN
$$2 follow-up statements
308
WWUS53 KMPX 110006
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
706 PM CDT SUN JUL 10 2011
MNC041-121-149-110045-
/O.CON.KMPX.SV.W.0121.000000T0000Z-110711T0045Z/
DOUGLAS MN-POPE MN-STEVENS MN-
706 PM CDT SUN JUL 10 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR STEVENS...
NORTHERN POPE AND DOUGLAS COUNTIES UNTIL 745 PM CDT...
AT 702 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG
A LINE EXTENDING FROM 9 MILES NORTH OF ERDAHL TO ARTICHOKE...MOVING
EAST AT 55 MPH.
LOCATIONS IMPACTED INCLUDE...
MORRIS...ALEXANDRIA...GLENWOOD...EVANSVILLE...KENSINGTON...
HANCOCK...BRANDON...CYRUS...MILLERVILLE...GARFIELD...LOWRY...
STARBUCK...MILTONA...LONG BEACH AND CARLOS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.
IF ON OR NEAR A BODY OF WATER MOVE INDOORS OR INSIDE A VEHICLE.
IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING. IN ADDITION...THUNDERSTORMS CAN PRODUCE LARGE CAPSIZING
WAVES...EVEN ON SMALL BODIES OF WATER. MOVE INTO DOCK AND SEEK SAFE
SHELTER NOW. DON'T BE CAUGHT ON THE WATER IN A THUNDERSTORM!
&&
LAT...LON 4577 9577 4597 9578 4612 9576 4612 9519
4611 9514 4560 9514 4542 9610 4541 9622
4576 9625
TIME...MOT...LOC 0005Z 275DEG 47KT 4612 9573 4541 9601
WIND...HAIL 60MPH 1.00IN
$$726
WWUS53 KMPX 110020
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
720 PM CDT SUN JUL 10 2011
MNC041-121-149-110045-
/O.CON.KMPX.SV.W.0121.000000T0000Z-110711T0045Z/
DOUGLAS MN-POPE MN-STEVENS MN-
720 PM CDT SUN JUL 10 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR STEVENS...
NORTHERN POPE AND DOUGLAS COUNTIES UNTIL 745 PM CDT...
AT 716 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 5 MILES NORTHWEST OF MILLERVILLE TO 6
MILES SOUTHWEST OF HANCOCK...MOVING EAST AT 55 MPH.
LOCATIONS IMPACTED INCLUDE...
ALEXANDRIA...GLENWOOD...KENSINGTON...HANCOCK...BRANDON...
MILLERVILLE...CYRUS...GARFIELD...LOWRY...STARBUCK...MILTONA...LONG
BEACH...CARLOS...FORADA AND ROSE CITY.
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 ROOFS AND WINDOWS.
EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. LARGE HAIL IS ALSO
EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
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 4577 9577 4597 9578 4612 9576 4612 9519
4611 9514 4560 9514 4542 9610 4541 9622
4576 9625
TIME...MOT...LOC 0020Z 275DEG 47KT 4610 9557 4546 9584
WIND...HAIL 70MPH 1.00IN
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 3:15 AM CDT | Special Weather Statement | MPX | Watonwan | 60 min |
| Jul 10, 4:06 AM CDT | Special Weather Statement | MPX | Scott | 39 min |
| Jul 10, 4:22 AM CDT | Severe Thunderstorm Warning | MPX | Carver, Dakota, Scott, Sibley | 68 min |
| Jul 10, 4:56 AM CDT | Areal Flood Advisory | MPX | Carver, Dakota, Le Sueur, Rice, Scott, Sibley | 3 hr |
| Jul 10, 5:27 AM CDT | Special Weather Statement | MPX | Goodhue | 63 min |
| Jul 10, 5:32 AM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue, Washington | 58 min |
| Jul 10, 6:08 AM CDT | Flash Flood Warning | MPX | Carver, Hennepin, Ramsey | 89 min |
| Jul 10, 6:34 PM CDT | Special Weather Statement | MPX | Douglas, Kandiyohi, Pope, Stearns, Stevens, Swift and 1 more | 86 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.