Alert archive / Michigan / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 65, NWS Detroit, MI

August 22, 1987Wayne County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Aug 22, 1987, 5:25 AM EDT for Wayne County, Michigan. It was in force for 20 min.

The area

The counties it named.

The facts

Issued
Aug 22, 1987, 5:25 AM EDT (09:25 UTC)
Expired
Aug 22, 1987, 5:45 AM EDT
In force
20 min
Issued by
NWS Detroit, MI
Area
Whole counties

County Wayne County, MI

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Detroit, MI (KFNT), launched 00:00Z, 9.4 hours before the alert went out and 50 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, Detroit, MI at 00:00Z on 1987-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 683 joules per kilogram.LCLLFCEL10008507005003002001001 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, Detroit, MI at 00:00Z on 1987-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.1939587897Sfc1 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
683 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
1045 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
271 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.9

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
Aug 22, 1:54 AM EDTSevere Thunderstorm WarningDTXLivingston51 min
Aug 22, 2:23 AM EDTSevere Thunderstorm WarningDTXOakland, Washtenaw52 min
Aug 22, 2:40 AM EDTSevere Thunderstorm WarningDTXMacomb, Wayne65 min
Aug 22, 3:27 AM EDTSevere Thunderstorm WarningDTXMonroe63 min
Aug 22, 4:39 AM EDTSevere Thunderstorm WarningDTXMonroe51 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1987Every severe thunderstorm warning in 1987

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.