Alert archive / Michigan / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 44, NWS Marquette, MI

July 10, 2011Gogebic County, Michigan

NWS Marquette, MI issued this severe thunderstorm warning at Jul 10, 2011, 11:56 PM CDT for Gogebic County, Michigan. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 10, 2011, 11:56 PM CDT (04:56 UTC)
Expired: Jul 11, 2011, 1:00 AM CDT
In force: 64 min
Issued by: NWS Marquette, MI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Gogebic County, MI

The radar

The Marquette radar (KMQT), 172 km from the middle of the area, began a volume at 04:57 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, 4.9 hours before the alert went out and 260 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2402 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 653 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 155 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 6.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Marquette, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 10, 3:37 PM CDT, 8 hours 19 minutes earlier.

Area forecast discussion, Jul 10, 3:37 PM CDT, 8 hours 19 minutes before

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Hazardous weather outlook, Jul 10, 3:40 PM CDT, 8 hours 16 minutes before

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In the hours before

Special weather statement, Jul 10, 6:49 PM CDT, 5 hours 7 minutes before

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Special weather statement, Jul 10, 7:14 PM CDT, 4 hours 42 minutes before

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Special weather statement, Jul 10, 11:41 PM CDT, 15 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 7:54 PM CDT	Areal Flood Advisory	MQT	Alger	4 hr
Jul 11, 12:46 AM CDT	Areal Flood Advisory	MQT	Gogebic	4 hr
Jul 11, 5:47 AM CDT	Severe Thunderstorm Warning	MQT	Houghton, Keweenaw	42 min
Jul 11, 5:52 AM CDT	Special Marine Warning	MQT		83 min
Jul 11, 6:25 AM CDT	Special Marine Warning	MQT		95 min
Jul 11, 7:51 AM CDT	Special Marine Warning	MQT		54 min
Jul 11, 3:58 PM CDT	Small Craft Advisory	MQT		40 hr

Nearby

Severe Thunderstorm Warnings in Michigan, 2011 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.