Alert archive / Michigan / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 21, NWS Marquette, MI

June 11, 2017Dickinson County, Iron County, Michigan

NWS Marquette, MI issued this severe thunderstorm warning at Jun 11, 2017, 7:15 PM CDT for Dickinson County, Iron County, Michigan. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 11, 2017, 7:15 PM CDT (00:15 UTC)
Expired
Jun 11, 2017, 8:00 PM CDT
In force
45 min
Issued by
NWS Marquette, MI
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Dickinson County, MI, Iron County, MI

The radar

The Marquette radar (KMQT), 76 km from the middle of the area, began a volume at 00:18 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.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.3 hours before the alert went out and 165 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 2017-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 428 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 2017-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 288 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
428 J/kg
Mixed-layer CIN
-274 J/kg
Mixed-layer LCL
1257 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
288 m²/s²
0-3 km storm-relative helicity
452 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.0

Open this sounding in Storm Lab

The text

As transmitted.

985 
WUUS53 KMQT 120015
SVRMQT
MIC043-071-120100-
/O.NEW.KMQT.SV.W.0021.170612T0015Z-170612T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Marquette MI
715 PM CDT SUN JUN 11 2017

The National Weather Service in Marquette has issued a

* Severe Thunderstorm Warning for...
  Southeastern Iron County in south central Upper Michigan...
  Dickinson County in south central Upper Michigan...

* Until 800 PM CDT

* At 715 PM CDT, a severe thunderstorm was located over Crystal
  Falls, moving east at 55 mph.

  HAZARD...60 mph wind gusts and penny size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations impacted include...
  Crystal Falls, Felch, Foster City, Channing, Sagola, Alpha, Ralph,
  Granite Bluff, Stager, Hardwood, Peavy Falls Dam, Randville,
  Bewabic State Park and Merriman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4588 8810 4592 8810 4596 8819 4594 8821
      4596 8825 4595 8830 4599 8837 4598 8842
      4600 8846 4615 8843 4616 8761 4590 8761
      4590 8770 4584 8770
TIME...MOT...LOC 0015Z 270DEG 60KT 4607 8829 

HAIL...0.75IN
WIND...60MPH
 
$$

KEC
1 follow-up statement
337 
WWUS53 KMQT 120028
SVSMQT

Severe Weather Statement
National Weather Service Marquette MI
728 PM CDT SUN JUN 11 2017

MIC043-071-120100-
/O.CON.KMQT.SV.W.0021.000000T0000Z-170612T0100Z/
Iron MI-Dickinson MI-
728 PM CDT SUN JUN 11 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR SOUTHEASTERN IRON AND NORTHWESTERN DICKINSON COUNTIES...

At 728 PM CDT, a severe thunderstorm was located 7 miles southeast 
of Channing, or 16 miles north of Iron Mountain, and is moving east 
at 40 mph.

HAZARD...60 mph wind gusts and penny size hail. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

Locations impacted include...
Crystal Falls, Channing, Sagola, Alpha, Randville, Bewabic State
Park, Granite Bluff, Stager and Peavy Falls Dam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4592 8810 4596 8819 4594 8821 4596 8825
      4595 8830 4599 8837 4598 8842 4600 8846
      4615 8843 4615 8797 4592 8798
TIME...MOT...LOC 0028Z 270DEG 60KT 4606 8798 

HAIL...0.75IN
WIND...60MPH
 
$$

KEC

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 7:45 PM CDTSpecial Weather StatementMQTIron45 min
Jun 11, 8:03 PM CDTSevere Thunderstorm WarningMQTDickinson, Iron57 min
Jun 11, 8:38 PM CDTSevere Thunderstorm WarningMQTDickinson67 min
Jun 11, 9:07 PM CDTSevere Thunderstorm WarningMQTMarquette, Menominee38 min
Jun 11, 9:22 PM CDTSevere Thunderstorm WarningMQTDickinson53 min
Jun 11, 9:29 PM CDTSevere Thunderstorm WarningMQTDelta35 min
Jun 11, 9:36 PM CDTSpecial Marine WarningMQT54 min
Jun 11, 9:44 PM CDTSevere Thunderstorm WarningMQTMenominee47 min
Jun 11, 10:17 PM CDTSevere Thunderstorm WarningMQTDelta43 min
Jun 11, 10:20 PM CDTSpecial Marine WarningMQT40 min
Jun 11, 10:29 PM CDTSevere Thunderstorm WarningMQTMenominee46 min
Jun 11, 10:43 PM CDTSevere Thunderstorm WarningMQTSchoolcraft47 min
Jun 11, 10:45 PM CDTSpecial Marine WarningMQT60 min
Jun 11, 11:16 PM CDTAreal Flood AdvisoryMQTDelta, Marquette, Menominee6 hr
Jun 12, 12:58 AM CDTSpecial Marine WarningMQT92 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2017Every severe thunderstorm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.