Alert archive / Michigan / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 21, NWS Detroit, MI

May 11, 1994Huron County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at May 11, 1994, 7:16 PM EDT for Huron County, Michigan. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
May 11, 1994, 7:16 PM EDT (23:16 UTC)
Expired
May 11, 1994, 8:03 PM EDT
In force
47 min
Issued by
NWS Detroit, MI
Area
Whole counties

County Huron County, MI

The nearest sounding before it

Sault Ste Marie, MI (KY62), launched 12:00Z, 11.3 hours before the alert went out and 306 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 1994-05-11Temperature 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 1994-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 324 square meters per square second.1939587897Sfc1 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
558 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
324 m²/s²
0-3 km storm-relative helicity
460 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 KFNT 112316 RRA
SVRFNT
MIC063-120015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE FLINT MI
716 PM EDT WED MAY 11 1994

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 815 PM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE EAST CENTRAL PART OF LOWER MICHIGAN
      NORTHERN HURON

AT 0711 PM...RADAR INDICATED THAT A SEVERE THUNDERSTORM WAS LOCATED
OFF THE COAST OF PORT AUSTIN...85 MILES NORTHEAST OF SAGINAW. RADAR
INDICATED THAT THIS STORM COULD PRODUCES 3/4 QUARTER INCH HAIL AND
STRONG WINDS OF 50 MILES. THIS STORM WAS MOVING EAST SOUTHEAST AT
45 MPH. IT WILL AFFECT THE COMMUNITY OF HURON CITY...93 MILES EAST
NORTHEAST OF SAGINAW BY 730 PM.

IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWSF UNTIL THE STORM HAS PASSED.

 WSF

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.