Alert archive / Minnesota / Tornado Warnings in 2015

Tornado Warning 18, NWS Twin Cities, MN

July 12, 2015Douglas County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jul 12, 2015, 6:58 PM CDT for Douglas County, Minnesota. It was in force for 47 min. 13 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 12, 2015, 6:58 PM CDT (23:58 UTC)
Expired
Jul 12, 2015, 7:45 PM CDT
In force
47 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
2.0 in

County Douglas County, MN

The radar

The Minneapolis radar (KMPX), 195 km from the middle of the area, began a volume at 00:02 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

TimeReportWhereRemark
Jul 12, 7:09 PM CDTTSTM WND DMG4 S Garfield, MNPINE TREES UP ROOTED
Jul 12, 7:09 PM CDTTSTM WND DMG6 W Alexandria, MNPINE TREES UP ROOTED
Jul 12, 7:09 PM CDTTSTM WND GST 801 S Brandon, MNESTIMATED
Jul 12, 7:09 PM CDTTSTM WND GST 801 Ssw Brandon, MNESTIMATED
Jul 12, 7:10 PM CDTTSTM WND DMG3 Se Brandon, MNLARGE TREES SPLIT OPEN. OCCURRED SPORADICALLY FROM 3 TO 4 MILES SE OF TOWN ALONG COUNTY ROAD 82. TIME OF EVENT ESTIMATED.
Jul 12, 7:10 PM CDTTSTM WND DMGBrandon, MNLARGE TREES SPLIT OPEN ON NORTH SIDE OF TOWN. TIME ESTIMATED.
Jul 12, 7:14 PM CDTTSTM WND DMG2 E Brandon, MNLARGE SHED UNDER CONTRUCTION PARTIALLY DESTROYED. DAMAGE OCCURRED ON HALVERSON ROAD A FEW BLOCKS SOUTH OF COUNTY ROAD 82. TIME ESTIMATED.
Jul 12, 7:14 PM CDTTSTM WND DMG3 Wnw Garfield, MNLARGE SHED UNDER CONTRUCTION PARTIALLY DESTROYED. DAMAGE OCCURRED ON HALVERSON ROAD A FEW BLOCKS SOUTH OF COUNTY ROAD 82. TIME ESTIMATED.
Jul 12, 7:15 PM CDTTSTM WND DMG1 S Forada, MNPONTOON BOAT THROWN INTO MAPLE LAKE AND FLIPPED OVER. TIME ESTIMATED.
Jul 12, 7:15 PM CDTTSTM WND DMG1 Ssw Forada, MNPONTOON BOAT THROWN INTO MAPLE LAKE AND FLIPPED OVER. TIME ESTIMATED.
Jul 12, 7:15 PM CDTTSTM WND DMGBrandon, MN2 FOOT DIAMETER TREE DOWN EVENT TIME 1900-1930 CDT
Jul 12, 7:15 PM CDTTSTM WND DMGWnw Brandon, MN2 FOOT DIAMETER TREE DOWN EVENT TIME 1900-1930 CDT
Jul 12, 7:24 PM CDTTSTM WND DMG2 Ne Garfield, MNPOWER LINES 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.

IssuedProductOfficeLasted
Jul 12, 5:28 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 12.0 hours before the alert went out and 193 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2015-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1730 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2015-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1730 J/kg
Mixed-layer CIN
-145 J/kg
Mixed-layer LCL
756 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

001 
WFUS53 KMPX 122358
TORMPX
MNC041-130045-
/O.NEW.KMPX.TO.W.0018.150712T2358Z-150713T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
658 PM CDT SUN JUL 12 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 745 PM CDT
    
* AT 657 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR EVANSVILLE...OR 16 MILES WEST OF
  ALEXANDRIA...MOVING EAST AT 20 MPH.

  HAZARD...TORNADO AND HAIL UP TO TWO INCHES IN DIAMETER. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  BRANDON AROUND 710 PM CDT.
  ALEXANDRIA AROUND 745 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
GARFIELD...NELSON...HOLMES CITY...ALEXANDRIA AIRPORT...FORADA AND
MELBY.

THIS INCLUDES INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 81 AND
109.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4598 9526 4576 9525 4576 9576 4593 9576
      4593 9577 4607 9577
TIME...MOT...LOC 2357Z 286DEG 19KT 4593 9570 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$

JRB
2 follow-up statements
393 
WWUS53 KMPX 130017
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
717 PM CDT SUN JUL 12 2015

MNC041-130045-
/O.CON.KMPX.TO.W.0018.000000T0000Z-150713T0045Z/
DOUGLAS MN-
717 PM CDT SUN JUL 12 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR DOUGLAS
COUNTY...
    
AT 716 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR GARFIELD...OR 9 MILES WEST OF ALEXANDRIA...MOVING
EAST AT 20 MPH.

HAZARD...TORNADO AND TWO INCH HAIL. 

SOURCE...RADAR INDICATED ROTATION. AT !**ENTER TIME...ENTER 80 MPH 
         WINDS WERE ESTIMATED NEAR BRANDON. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS DANGEROUS STORM WILL BE NEAR...
  ALEXANDRIA AROUND 745 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
GARFIELD...NELSON...ALEXANDRIA AIRPORT...HOLMES CITY AND FORADA.

THIS INCLUDES INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 88 AND
109.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4598 9526 4576 9525 4576 9576 4587 9576
      4590 9570 4596 9564 4604 9561
TIME...MOT...LOC 0016Z 286DEG 19KT 4590 9556 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$

JRB
171 
WWUS53 KMPX 130033
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
733 PM CDT SUN JUL 12 2015

MNC041-130045-
/O.CON.KMPX.TO.W.0018.000000T0000Z-150713T0045Z/
DOUGLAS MN-
733 PM CDT SUN JUL 12 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR SOUTHERN
DOUGLAS COUNTY...
    
AT 733 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER FARWELL...OR 16 MILES SOUTHWEST OF ALEXANDRIA...
MOVING EAST AT 35 MPH.

HAZARD...TORNADO AND TWO INCH HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
SOUTHERN DOUGLAS COUNTY...INCLUDING THE FOLLOWING LOCATIONS...
GARFIELD...NELSON...ALEXANDRIA AIRPORT...HOLMES CITY AND FORADA.

THIS INCLUDES INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 89 AND
109.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4598 9526 4576 9525 4576 9576 4587 9576
      4590 9570 4596 9562 4600 9555
TIME...MOT...LOC 0033Z 259DEG 32KT 4577 9565 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$

JRB

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 11, 7:00 PM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs45 min
Jul 11, 7:48 PM CDTSpecial Weather StatementMPXKanabec42 min
Jul 12, 7:50 AM CDTSpecial Weather StatementMPXMille Lacs25 min
Jul 12, 8:30 AM CDTSpecial Weather StatementMPXKanabec30 min
Jul 12, 9:04 AM CDTSpecial Weather StatementMPXKanabec41 min
Jul 12, 6:13 PM CDTTornado WarningMPXDouglas47 min
Jul 12, 6:24 PM CDTTornado WarningMPXDouglas, Todd51 min

Nearby

Tornado Warnings in Minnesota, 2015Every tornado warning in 2015Tornadoes in 2015

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.