Alert archive / Michigan / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 22, NWS Gaylord, MI

August 10, 1993Alpena County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Aug 10, 1993, 4:49 PM EDT for Alpena County, Michigan. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Aug 10, 1993, 4:49 PM EDT (20:49 UTC)
Expired
Aug 10, 1993, 5:30 PM EDT
In force
41 min
Issued by
NWS Gaylord, MI
Area
Whole counties

County Alpena County, MI

The nearest sounding before it

Sault Ste Marie, MI (KY62), launched 12:00Z, 8.8 hours before the alert went out and 169 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 1993-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 504 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, Sault Ste Marie, MI at 12:00Z on 1993-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.1939Sfc1 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
504 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
518 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

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 Gaylord, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 10, 3:30 PM EDTSevere Thunderstorm WarningAPXMontmorency45 min
Aug 10, 4:04 PM EDTSevere Thunderstorm WarningAPXAlpena41 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1993Every severe thunderstorm warning in 1993

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.