Alert archive / Michigan / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 65, NWS Gaylord, MI

August 7, 1996Ogemaw County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Aug 7, 1996, 3:47 PM EDT for Ogemaw County, Michigan. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 7, 1996, 3:47 PM EDT (19:47 UTC)
Expired
Aug 7, 1996, 4:30 PM EDT
In force
43 min
Issued by
NWS Gaylord, MI
Area
Whole counties

County Ogemaw County, MI

The radar

The NCL Michigan radar (KAPX), 79 km from the middle of the area, began a volume at 19:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 7.8 hours before the alert went out and 159 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, Alpena, MI at 12:00Z on 1996-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1951 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, Alpena, MI at 12:00Z on 1996-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
1951 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
728 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KAPN 071947
SVRAPN
MIC129-072030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
347 PM EDT WED AUG 7 1996
 
THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN  MICHIGAN
 
   ...SOUTHERN OGEMAW COUNTY
 
AT 348PM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHEAST
OF WEST BRANCH MOVING EAST AT 25 MPH. THE STORM WILL AFFECT PRESCOTT BY
410PM EDT.
 
DESTRUCTIVE WIND AND HAIL...TORRENTIAL RAIN...AND DEADLY LIGHTNING
WILL OCCUR WITH THIS SEVERE THUNDERSTORM. SEEK SHELTER NOW.
 
JAH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 4:31 PM EDTSevere Thunderstorm WarningAPXIosco44 min
Aug 7, 4:35 PM EDTSevere Thunderstorm WarningAPXIosco40 min
Aug 7, 4:42 PM EDTFlash Flood WarningAPXArenac48 min
Aug 7, 4:42 PM EDTSevere Thunderstorm WarningAPXArenac48 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1996Every severe thunderstorm warning in 1996

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; radar from the NEXRAD Level II archive.