Alert archive / Michigan / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 39, NWS Detroit, MI

June 18, 1992Washtenaw County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Jun 18, 1992, 3:55 PM EDT for Washtenaw County, Michigan. It was in force for 50 min.

The area

The counties it named.

The facts

Issued: Jun 18, 1992, 3:55 PM EDT (19:55 UTC)
Expired: Jun 18, 1992, 4:45 PM EDT
In force: 50 min
Issued by: NWS Detroit, MI
Area: Whole counties

County Washtenaw County, MI

The nearest sounding before it

Detroit, MI (KFNT), launched 12:00Z, 7.9 hours before the alert went out and 62 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: 220 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 591 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, Jun 18, 2:49 PM EDT, 1 hour 6 minutes before

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Special weather statement, Jun 18, 2:50 PM EDT, 1 hour 5 minutes before

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Special weather statement, Jun 18, 3:19 PM EDT, 36 minutes before

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Special weather statement, Jun 18, 3:39 PM EDT, 16 minutes before

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Special weather statement, Jun 18, 3:46 PM EDT, 9 minutes before

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Special weather statement, Jun 18, 3:49 PM EDT, 6 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 17, 8:11 PM EDT	Tornado Warning	DTX	Livingston	49 min
Jun 17, 8:19 PM EDT	Tornado Warning	DTX	Oakland	26 min
Jun 17, 8:21 PM EDT	Severe Thunderstorm Warning	DTX	Shiawassee	34 min
Jun 17, 8:23 PM EDT	Severe Thunderstorm Warning	DTX	Lenawee, Washtenaw	67 min
Jun 17, 8:46 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer	29 min
Jun 17, 8:47 PM EDT	Tornado Warning	DTX	Oakland	43 min
Jun 17, 8:54 PM EDT	Tornado Warning	DTX	Washtenaw, Wayne	36 min
Jun 17, 9:15 PM EDT	Tornado Warning	DTX	Macomb, Saint Clair	60 min
Jun 17, 9:15 PM EDT	Tornado Warning	DTX	Lenawee, Monroe, Wayne	60 min
Jun 17, 10:14 PM EDT	Severe Thunderstorm Warning	DTX	Monroe	46 min
Jun 18, 3:05 PM EDT	Severe Thunderstorm Warning	DTX	Genesee	40 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1992 Every severe thunderstorm warning in 1992

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.