Alert archive / Michigan / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 13, NWS Gaylord, MI

August 27, 1990Cheboygan County, Emmet County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Aug 27, 1990, 6:50 PM EDT for Cheboygan County, Emmet County, Michigan. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Aug 27, 1990, 6:50 PM EDT (22:50 UTC)
Expired
Aug 27, 1990, 7:50 PM EDT
In force
60 min
Issued by
NWS Gaylord, MI
Area
Whole counties

Counties Cheboygan County, MI, Emmet 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

Sault Ste Marie, MI (KSSM), launched 12:00Z, 10.8 hours before the alert went out and 110 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 1990-08-27Temperature 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 1990-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.19395878Sfc1 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
1198 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
100 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 Gaylord, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 27, 5:48 PM EDTSevere Thunderstorm WarningAPXCharlevoix, Cheboygan, Emmet57 min
Aug 27, 6:23 PM EDTSevere Thunderstorm WarningAPXAlpena, Montmorency37 min
Aug 27, 6:51 PM EDTSevere Thunderstorm WarningAPXPresque Isle69 min
Aug 27, 7:09 PM EDTSevere Thunderstorm WarningAPXAlpena66 min
Aug 27, 7:25 PM EDTSevere Thunderstorm WarningAPXMontmorency35 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1990Every severe thunderstorm warning in 1990

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.