Alert archive / Michigan / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 31, NWS Gaylord, MI

July 6, 1994Alcona County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jul 6, 1994, 4:23 PM EDT for Alcona County, Michigan. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Jul 6, 1994, 4:23 PM EDT (20:23 UTC)
Expired
Jul 6, 1994, 5:30 PM EDT
In force
67 min
Issued by
NWS Gaylord, MI
Area
Whole counties

County Alcona County, MI

The nearest sounding before it

Detroit, MI (KFNT), launched 12:00Z, 8.4 hours before the alert went out and 222 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 12:00Z on 1994-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1873 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 12:00Z on 1994-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
1873 J/kg
Mixed-layer CIN
-118 J/kg
Mixed-layer LCL
1033 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.2

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

Local storm report, Jul 6, 3:00 PM EDT, 1 hour 23 minutes before
PRELIMINARY STORM REPORT
NATIONAL WEATHER SERVICE ALPENA MI
300 PM EDT WED JUL 6 1994

TIME (EDT)   COUNTY        DESCRIPTION OF EVENT

...ALL REPORTS FROM JULY 5 1994...

908  PM      MONTMORENCY   3/4" HAIL REPORTED BY SPOTTER IN LEWISTON

1015 PM      OSCODA        1" HAIL REPORTED BY SPOTTER .5MI SOUTH
                           OF LUZERNE

1017 PM      OSCODA        3/4" HAIL REPORTED BY SPOTTERS IN BOTH
                           MIO AND LUZERNE

1019 PM      OSCODA        WIND DAMAGE- TREE DOWN IN MIO ON M-33
                           TREE DIAMETER 12" - SPOTTER REPORT

1015 PM      IOSCO         SPOTTER REPORTED 3/4" HAIL IN THE TOWN
                           OF HALE

1130 PM      IOSCO         STATE POLICE REPORTED 3 TREES DOWNED
                           18" IN DIAMETER 2MI NORTH OF OSCODA

HOLLINGSWORTH
Local storm report, Jul 6, 3:00 PM EDT, 1 hour 23 minutes before
PRELIMINARY STORM REPORT
NATIONAL WEATHER SERVICE ALPENA MI
300 PM EDT WED JUL 6 1994

TIME (EDT)   COUNTY        DESCRIPTION OF EVENT

...ALL REPORTS FROM JULY 5 1994...

908  PM      MONTMORENCY   3/4" HAIL REPORTED BY SPOTTER IN LEWISTON

1015 PM      OSCODA        1" HAIL REPORTED BY SPOTTER .5MI SOUTH
                           OF LUZERNE

1017 PM      OSCODA        3/4" HAIL REPORTED BY SPOTTERS IN BOTH
                           MIO AND LUZERNE

1019 PM      OSCODA        WIND DAMAGE- TREE DOWN IN MIO ON M-33
                           TREE DIAMETER 12" - SPOTTER REPORT

1015 PM      IOSCO         SPOTTER REPORTED 3/4" HAIL IN THE TOWN
                           OF HALE

1130 PM      IOSCO         STATE POLICE REPORTED 3 TREES DOWNED
                           18" IN DIAMETER 2MI NORTH OF OSCODA

HOLLINGSWORTH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 8:44 PM EDTSevere Thunderstorm WarningAPXMontmorency61 min
Jul 5, 8:57 PM EDTSevere Thunderstorm WarningAPXOscoda63 min
Jul 5, 9:26 PM EDTSevere Thunderstorm WarningAPXAlcona, Alpena64 min
Jul 5, 9:34 PM EDTTornado WarningAPXAlpena, Presque Isle41 min
Jul 5, 9:59 PM EDTSevere Thunderstorm WarningAPXOscoda61 min
Jul 5, 10:09 PM EDTSevere Thunderstorm WarningAPXIosco66 min
Jul 5, 11:19 PM EDTSevere Thunderstorm WarningAPXIosco56 min
Jul 6, 3:44 PM EDTSevere Thunderstorm WarningAPXMissaukee31 min
Jul 6, 5:17 PM EDTSevere Thunderstorm WarningAPXIosco88 min
Jul 6, 5:37 PM EDTSevere Thunderstorm WarningAPXOsceola, Wexford68 min
Jul 6, 5:57 PM EDTSevere Thunderstorm WarningAPXArenac63 min
Jul 6, 6:57 PM EDTSevere Thunderstorm WarningAPXArenac34 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; the sounding from the Mesonet's radiosonde archive.