Alert archive / Minnesota / Tornado Warnings in 2012

Tornado Warning 9, NWS Duluth, MN

July 22, 2012Saint Louis County, Minnesota

NWS Duluth, MN issued this tornado warning at Jul 22, 2012, 6:06 PM CDT for Saint Louis County, Minnesota. It was in force for 39 min. 2 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 22, 2012, 6:06 PM CDT (23:06 UTC)
Expired
Jul 22, 2012, 6:45 PM CDT
In force
39 min
Issued by
NWS Duluth, MN
Area
Storm-based polygon

County Saint Louis County, MN

The radar

The Duluth radar (KDLH), 97 km from the middle of the area, began a volume at 23:09 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 22, 6:12 PM CDTHAIL 0.510 N Chisholm, MNPEA TO MARBLE STURGEON TOWNSHIP
Jul 22, 6:47 PM CDTTSTM WND GST 50Mountain Iron, MN4 INCH TREE BRANCHES 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 22, 3:25 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 11.1 hours before the alert went out and 112 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, International Fa, MN at 12:00Z on 2012-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, International Fa, MN at 12:00Z on 2012-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1489 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

564 
WFUS53 KDLH 222306
TORDLH
MNC137-222345-
/O.NEW.KDLH.TO.W.0009.120722T2306Z-120722T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DULUTH MN
606 PM CDT SUN JUL 22 2012

THE NATIONAL WEATHER SERVICE IN DULUTH MN HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL ST. LOUIS COUNTY IN NORTHEAST MINNESOTA...

* UNTIL 645 PM CDT

* AT 604 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES EAST OF
  SNAKE TRAIL...OR 13 MILES SOUTHWEST OF COOK...MOVING SOUTHEAST AT
  40 MPH.

* THIS VERY DANGEROUS STORM WILL BE NEAR...
  CHISHOLM...LEETONIA AND KELLY LAKE BY 620 PM...
  KINNEY...BUHL AND HIBBING BY 625 PM...
  WEST TWO RIVERS RESERVOIR BY 635 PM...
  FRANKLIN...VIRGINIA AND GILBERT BY 640 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 4753 9222 4735 9301 4770 9305 4780 9308
      4786 9294
TIME...MOT...LOC 2307Z 306DEG 36KT 4772 9289

$$

BERDES
3 follow-up statements
813 
WWUS53 KDLH 222322
SVSDLH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
622 PM CDT SUN JUL 22 2012

MNC137-222345-
/O.CON.KDLH.TO.W.0009.000000T0000Z-120722T2345Z/
ST. LOUIS MN-
622 PM CDT SUN JUL 22 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL ST. LOUIS COUNTY
UNTIL 645 PM CDT...

AT 618 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 5 MILES SOUTHWEST OF IDINGTON...OR 11 MILES SOUTH
OF COOK...MOVING SOUTHEAST AT 40 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  FRANKLIN...VIRGINIA AND MOUNTAIN IRON AROUND 640 PM CDT.
  GILBERT...MCKINLEY...EVELETH AND LEONIDAS AROUND 645 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4777 9306 4783 9286 4753 9222 4738 9289
TIME...MOT...LOC 2322Z 314DEG 34KT 4768 9272

$$

BERDES
370 
WWUS53 KDLH 222335
SVSDLH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
635 PM CDT SUN JUL 22 2012

MNC137-222345-
/O.CON.KDLH.TO.W.0009.000000T0000Z-120722T2345Z/
ST. LOUIS MN-
635 PM CDT SUN JUL 22 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL ST. LOUIS COUNTY
UNTIL 645 PM CDT...

AT 632 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 7 MILES NORTH OF MOUNTAIN IRON...OR 16 MILES SOUTH
OF COOK...MOVING SOUTHEAST AT 35 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  MOUNTAIN IRON AROUND 640 PM CDT.
  FRANKLIN...VIRGINIA...GILBERT AND MCKINLEY AROUND 645 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4777 9306 4783 9286 4753 9222 4738 9289
TIME...MOT...LOC 2335Z 314DEG 32KT 4760 9261

$$

BERDES
296 
WWUS53 KDLH 222345
SVSDLH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
645 PM CDT SUN JUL 22 2012

MNC137-222354-
/O.EXP.KDLH.TO.W.0009.000000T0000Z-120722T2345Z/
ST. LOUIS MN-
645 PM CDT SUN JUL 22 2012

...THE TORNADO WARNING FOR CENTRAL ST. LOUIS COUNTY WILL EXPIRE AT
645 PM CDT...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT 
FOR THE AREA. 

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM CDT.

LAT...LON 4777 9306 4783 9286 4753 9222 4738 9289
TIME...MOT...LOC 2344Z 314DEG 32KT 4754 9253

$$

BERDES

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 2:19 PM CDTSevere Thunderstorm WarningDLHKoochiching41 min
Jul 22, 2:57 PM CDTSevere Thunderstorm WarningDLHKoochiching63 min
Jul 22, 3:54 PM CDTSevere Thunderstorm WarningDLHKoochiching66 min
Jul 22, 4:46 PM CDTSevere Thunderstorm WarningDLHItasca, Koochiching, Saint Louis44 min
Jul 22, 5:23 PM CDTSevere Thunderstorm WarningDLHItasca, Koochiching, Saint Louis37 min
Jul 22, 5:42 PM CDTSpecial Weather StatementDLHKoochiching33 min
Jul 22, 5:54 PM CDTSevere Thunderstorm WarningDLHItasca, Koochiching, Saint Louis66 min
Jul 22, 6:18 PM CDTSpecial Weather StatementDLHItasca12 min
Jul 22, 6:32 PM CDTSpecial Weather StatementDLHItasca28 min
Jul 22, 6:44 PM CDTSpecial Weather StatementDLHSaint Louis31 min
Jul 22, 6:49 PM CDTSevere Thunderstorm WarningDLHSaint Louis41 min

Nearby

Tornado Warnings in Minnesota, 2012Every tornado warning in 2012Tornadoes in 2012

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.