Alert archive / Michigan / Tornado Warnings in 2012

Tornado Warning 1, NWS Marquette, MI

June 8, 2012Marquette County, Michigan

NWS Marquette, MI issued this tornado warning at Jun 8, 2012, 8:24 PM EDT for Marquette County, Michigan. It was in force for 36 min. 1 report 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
Jun 8, 2012, 8:24 PM EDT (00:24 UTC)
Expired
Jun 8, 2012, 9:00 PM EDT
In force
36 min
Issued by
NWS Marquette, MI
Area
Storm-based polygon

County Marquette County, MI

The radar

The Marquette radar (KMQT), 40 km from the middle of the area, began a volume at 00:24 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
Jun 8, 8:30 PM EDTTORNADO9 Sw Big Bay, MIPOSSIBLE TORNADO REPORTED AT EAGLE MINE. DEBRIS BLOWN AROUND, POWER LINE DOWN, NUMEROUS TREES DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.4 hours before the alert went out and 255 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, Green Bay/Straub, WI at 00:00Z on 2012-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 55 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, Green Bay/Straub, WI at 00:00Z on 2012-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 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
55 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
2100 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
187 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

261 
WFUS53 KMQT 090024
TORMQT
MIC103-090100-
/O.NEW.KMQT.TO.W.0001.120609T0024Z-120609T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MARQUETTE MI
824 PM EDT FRI JUN 8 2012

THE NATIONAL WEATHER SERVICE IN MARQUETTE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN MARQUETTE COUNTY IN NORTH CENTRAL UPPER MICHIGAN...

* UNTIL 900 PM EDT

* AT 820 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 11 MILES WEST OF BIG BAY...OR 23 MILES EAST OF
  L'ANSE...AND MOVING EAST AT 30 MPH.

* THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHWESTERN
  MARQUETTE COUNTY INCLUDING KENNECOTT MINE.

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 4686 8800 4679 8769 4665 8775 4668 8799
      4676 8799 4676 8804 4679 8805
TIME...MOT...LOC 0024Z 289DEG 24KT 4676 8792

$$

MRD
2 follow-up statements
240 
WWUS53 KMQT 090032
SVSMQT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MARQUETTE MI
832 PM EDT FRI JUN 8 2012

MIC103-090100-
/O.CON.KMQT.TO.W.0001.000000T0000Z-120609T0100Z/
MARQUETTE MI-
832 PM EDT FRI JUN 8 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL MARQUETTE
COUNTY UNTIL 900 PM EDT...

AT 829 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 9 MILES SOUTHWEST OF BIG BAY...OR 21 MILES
NORTHWEST OF ISHPEMING...MOVING EAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHERN MARQUETTE COUNTY INCLUDING          
  KENNECOTT MINE.

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 4684 8792 4679 8769 4665 8775 4668 8799
TIME...MOT...LOC 0032Z 288DEG 21KT 4674 8786

$$

MRD
299 
WWUS53 KMQT 090050
SVSMQT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MARQUETTE MI
850 PM EDT FRI JUN 8 2012

MIC103-090101-
/O.EXP.KMQT.TO.W.0001.000000T0000Z-120609T0100Z/
MARQUETTE MI-
850 PM EDT FRI JUN 8 2012

...THE TORNADO WARNING FOR NORTH CENTRAL MARQUETTE COUNTY WILL EXPIRE
AT 900 PM EDT/800 PM CDT/...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT 
FOR MUCH OF NORTHERN MARQUETTE COUNTY.

LAT...LON 4684 8792 4679 8769 4665 8775 4668 8799
TIME...MOT...LOC 0051Z 288DEG 21KT 4670 8771

$$

MRD

The office that day

Everything else NWS Marquette, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 8:13 PM EDTSevere Thunderstorm WarningMQTMarquette32 min
Jun 8, 8:28 PM EDTSevere Thunderstorm WarningMQTAlger, Marquette62 min
Jun 8, 8:45 PM EDTSevere Thunderstorm WarningMQTMarquette45 min
Jun 8, 8:55 PM EDTSpecial Marine WarningMQT65 min
Jun 8, 10:20 PM EDTSpecial Marine WarningMQT35 min
Jun 8, 10:25 PM EDTSpecial Marine WarningMQT34 min
Jun 8, 10:29 PM EDTSevere Thunderstorm WarningMQTSchoolcraft24 min
Jun 9, 12:27 AM EDTSpecial Marine WarningMQT93 min
Jun 9, 9:59 AM EDTMarine Dense Fog AdvisoryMQT22 hr

Nearby

Tornado Warnings in Michigan, 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.