Alert archive / Michigan / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 43, NWS Grand Rapids, MI

July 5, 1994Montcalm County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Jul 5, 1994, 12:15 AM EDT for Montcalm County, Michigan. It was in force for 45 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 5, 1994, 12:15 AM EDT (04:15 UTC)
Expired: Jul 5, 1994, 1:00 AM EDT
In force: 45 min
Issued by: NWS Grand Rapids, MI
Area: Whole counties

County Montcalm County, MI

What was reported inside it

Time	Report	Where	Remark
Jul 5, 12:45 AM EDT	Tornado F2	Stanton, MI	A brick, ranch style home in Fairplain Township was totally destroyed by an apparent tornado. No one actually saw a tornado, but the debris pattern and localization of the damage strongly suggested a tornado rather than straight-line thunderstorm winds. Seven

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Detroit, MI (KFNT), launched 00:00Z, 4.3 hours before the alert went out and 155 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: 1468 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 920 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 130 m²/s²
0-3 km storm-relative helicity: 217 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 7.3

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, Jul 5, 12:10 AM EDT, 5 minutes before

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Special weather statement, Jul 5, 12:11 AM EDT, 4 minutes before

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Special weather statement, Jul 5, 12:13 AM EDT, 2 minutes before

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Special weather statement, Jul 5, 12:14 AM EDT, 1 minute before

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Local storm report, Jul 5, 12:14 AM EDT, 1 minute before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 11:50 PM EDT	Severe Thunderstorm Warning	GRR	Montcalm	25 min
Jul 5, 12:03 AM EDT	Severe Thunderstorm Warning	GRR	Kent	57 min
Jul 5, 12:12 AM EDT	Severe Thunderstorm Warning	GRR	Ottawa	28 min
Jul 5, 12:42 AM EDT	Severe Thunderstorm Warning	GRR	Gratiot	48 min
Jul 5, 1:03 AM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry	52 min
Jul 5, 2:16 AM EDT	Severe Thunderstorm Warning	GRR	Barry	29 min
Jul 5, 2:20 AM EDT	Severe Thunderstorm Warning	GRR	Calhoun, Eaton	40 min
Jul 5, 2:30 AM EDT	Severe Thunderstorm Warning	GRR	Kalamazoo	30 min
Jul 5, 3:38 AM EDT	Flash Flood Warning	GRR	Kent, Ottawa	3 hr
Jul 5, 3:38 AM EDT	Flash Flood Warning	GRR	Ionia	3 hr
Jul 5, 6:36 AM EDT	Flash Flood Warning	GRR	Kent, Ottawa	2 hr
Jul 5, 6:36 AM EDT	Flash Flood Warning	GRR	Ionia	2 hr

Nearby

Severe Thunderstorm Warnings in Michigan, 1994 Every severe thunderstorm warning in 1994

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.