Alert archive / Michigan / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 61, NWS Detroit, MI

June 15, 2008Huron County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Jun 15, 2008, 6:46 PM EDT for Huron County, Michigan. It was in force for 39 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: Jun 15, 2008, 6:46 PM EDT (22:46 UTC)
Expired: Jun 15, 2008, 7:25 PM EDT
In force: 39 min
Issued by: NWS Detroit, MI
Area: Storm-based polygon

County Huron County, MI

The radar

The Detroit radar (KDTX), 144 km from the middle of the area, began a volume at 22:50 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 15, 1:38 PM EDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 10.8 hours before the alert went out and 134 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1622 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 127 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Detroit, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 15, 4:19 PM EDT, 2 hours 27 minutes earlier.

Area forecast discussion, Jun 15, 4:19 PM EDT, 2 hours 27 minutes before

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Hazardous weather outlook, Jun 15, 3:45 PM EDT, 3 hours 1 minute before

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In the hours before

Local storm report, Jun 15, 1:42 PM EDT, 5 hours 4 minutes before

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Local storm report, Jun 15, 1:50 PM EDT, 4 hours 56 minutes before

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Local storm report, Jun 15, 2:09 PM EDT, 4 hours 37 minutes before

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Local storm report, Jun 15, 2:52 PM EDT, 3 hours 54 minutes before

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Special weather statement, Jun 15, 5:34 PM EDT, 1 hour 12 minutes before

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Local storm report, Jun 15, 6:44 PM EDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
644 PM EDT SUN JUN 15 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0630 PM     TSTM WND DMG     LIME CREEK              41.77N 84.33W
06/15/2008                   LENAWEE            MI   FIRE DEPT/RESCUE

            TREES DOWN

0641 PM     TSTM WND GST     MORENCI                 41.72N 84.22W
06/15/2008  E55 MPH          LENAWEE            MI   TRAINED SPOTTER

            SMALL LIMBS AND TREES DOWN

0641 PM     HAIL             MORENCI                 41.72N 84.22W
06/15/2008  E0.25 INCH       LENAWEE            MI   TRAINED SPOTTER

&&

MHEITZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 1:18 PM EDT	Severe Thunderstorm Warning	DTX	Oakland, Washtenaw, Wayne	72 min
Jun 15, 2:04 PM EDT	Special Marine Warning	DTX		56 min
Jun 15, 2:36 PM EDT	Special Marine Warning	DTX		55 min
Jun 15, 3:24 PM EDT	Special Marine Warning	DTX		66 min
Jun 15, 5:46 PM EDT	Special Marine Warning	DTX		119 min
Jun 15, 6:35 PM EDT	Severe Thunderstorm Warning	DTX	Lenawee	32 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2008 Every severe thunderstorm warning in 2008

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.