Alert archive / Michigan / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 47, NWS Detroit, MI

July 5, 1994Crawford County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Jul 5, 1994, 7:30 PM EDT for Crawford 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, 7:30 PM EDT (23:30 UTC)
Expired
Jul 5, 1994, 8:15 PM EDT
In force
45 min
Issued by
NWS Detroit, MI
Area
Whole counties

County Crawford County, MI

What was reported inside it

TimeReportWhereRemark
Jul 5, 8:17 PM EDTTornado F1To, MIA tornado touched down in Beaver Creek Township just north of Seven-Mile Road, about 1.5 miles west of Military Road. It moved generally eastward, along the north side of Seven-Mile Road, doing widespread tree damage. At about the time the tornado crossed Mi

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

Sault Ste Marie, MI (KY62), launched 12:00Z, 11.5 hours before the alert went out and 200 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-pSkew-T log-p diagram, Sault Ste Marie, MI at 12:00Z on 1994-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Sault Ste Marie, MI at 12:00Z on 1994-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
528 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 9:44 PM EDTSevere Thunderstorm WarningDTXRoscommon46 min
Jul 4, 10:03 PM EDTSevere Thunderstorm WarningDTXCrawford27 min
Jul 4, 11:55 PM EDTSevere Thunderstorm WarningDTXRoscommon50 min
Jul 5, 12:50 AM EDTSevere Thunderstorm WarningDTXSaginaw55 min
Jul 5, 12:50 AM EDTSevere Thunderstorm WarningDTXMidland37 min
Jul 5, 7:39 AM EDTSevere Thunderstorm WarningDTXWashtenaw27 min
Jul 5, 7:38 PM EDTSevere Thunderstorm WarningDTXOtsego52 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1994Every 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.