Alert archive / Michigan / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 90, NWS Detroit, MI

June 26, 2008Saint Clair County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Jun 26, 2008, 5:19 PM EDT for Saint Clair County, Michigan. It was in force for 33 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 26, 2008, 5:19 PM EDT (21:19 UTC)
Expired: Jun 26, 2008, 5:52 PM EDT
In force: 33 min
Issued by: NWS Detroit, MI
Area: Storm-based polygon

County Saint Clair County, MI

The radar

The Detroit radar (KDTX), 71 km from the middle of the area, began a volume at 21:21 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

Detroit, MI (KDTX), launched 12:00Z, 9.3 hours before the alert went out and 67 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: 412 J/kg
Mixed-layer CIN: -117 J/kg
Mixed-layer LCL: 780 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 81 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 26, 4:09 PM EDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jun 26, 4:09 PM EDT, 1 hour 10 minutes before

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Hazardous weather outlook, Jun 26, 4:15 PM EDT, 1 hour 4 minutes before

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In the hours before

Special weather statement, Jun 26, 4:22 PM EDT, 57 minutes before

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Local storm report, Jun 26, 4:29 PM EDT, 50 minutes before

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Local storm report, Jun 26, 4:37 PM EDT, 42 minutes before

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Special weather statement, Jun 26, 4:37 PM EDT, 42 minutes before

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Local storm report, Jun 26, 4:50 PM EDT, 29 minutes before

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Local storm report, Jun 26, 5:12 PM EDT, 7 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 26, 12:41 PM EDT	Special Marine Warning	DTX		49 min
Jun 26, 2:13 PM EDT	Special Marine Warning	DTX		92 min
Jun 26, 4:11 PM EDT	Special Marine Warning	DTX		94 min
Jun 26, 4:13 PM EDT	Special Marine Warning	DTX		91 min
Jun 26, 4:19 PM EDT	Special Marine Warning	DTX		100 min
Jun 26, 4:31 PM EDT	Severe Thunderstorm Warning	DTX	Oakland	59 min
Jun 26, 4:49 PM EDT	Severe Thunderstorm Warning	DTX	Wayne	56 min
Jun 26, 4:56 PM EDT	Severe Thunderstorm Warning	DTX	Macomb	52 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.