Alert archive / Michigan / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 50, NWS Gaylord, MI

August 26, 1994Manistee County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Aug 26, 1994, 2:22 AM EDT for Manistee County, Michigan. It was in force for 29 min.

The area

The counties it named.

The facts

Issued
Aug 26, 1994, 2:22 AM EDT (06:22 UTC)
Expired
Aug 26, 1994, 2:51 AM EDT
In force
29 min
Issued by
NWS Gaylord, MI
Area
Whole counties

County Manistee County, MI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 6.4 hours before the alert went out and 147 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, Green Bay/Straub, WI at 00:00Z on 1994-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1433 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, Green Bay/Straub, WI at 00:00Z on 1994-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
1433 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1536 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKG 260623 RRA
SVRMKG
MIC101-260715-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MUSKEGON MI
222 AM EDT FRI AUG 26 1994
 
THE NATIONAL WEATHER SERVICE IN MUSKEGON MI  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST LOWER MICHIGAN
 
   ...NORTHERN MANISTEE COUNTY
 
AND THE ADJACENT COASTAL WATERS OF LAKE MICHIGAN.
 
 
AT 220 AM RADAR INDICATED A SEVERE THUNDERSTORM OVER MANISTEE COUNTY
BETWEEN BEAR LAKE AND ONEKAMA MOVING TO THE NORTHEAST AT 30 MILES AN
HOUR. THIS STORM WILL AFFECT THE COMMUNITY OF COPEMISH BY 235 AM EDT.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 4:18 AM EDTSevere Thunderstorm WarningAPXMecosta57 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.