Alert archive / Michigan / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 21, NWS Grand Rapids, MI

July 27, 1995Allegan County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Jul 27, 1995, 10:27 PM EDT for Allegan County, Michigan. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
Jul 27, 1995, 10:27 PM EDT (02:27 UTC)
Expired
Jul 27, 1995, 11:15 PM EDT
In force
48 min
Issued by
NWS Grand Rapids, MI
Area
Whole counties

County Allegan County, MI

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 2.5 hours before the alert went out and 204 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 00:00Z on 1995-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1408 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 00:00Z on 1995-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
1408 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1048 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGRR 280227 RRA
SVRGRR
MIC005-280315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING 
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1027 PM EDT THU JUL 27 1995

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 1115 PM EDT FOR 
PEOPLE IN THE FOLLOWING COUNTY

   IN THE SOUTHWEST PART OF LOWER MICHIGAN
      ALLEGAN

...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTY JUST MENTIONED

AT 1025 PM EDT... WEATHER RADAR SHOWED SEVERE THUNDERSTORMS MOVING
ONSHORE NEAR HOLLAND... 30 MILES SOUTHWEST OF GRAND RAPIDS... SOUTH
TO GLENN... 40 MILES NORTHWEST OF KALAMAZOO. THE STORMS WERE MOVING
TO THE EAST AT 30 MPH AND WILL REACH HAMILTON... FENNVILLE AND
PULLMAN BY 1050 PM EDT. THESE STORMS ARE CAPABLE OF PRODUCING WIND
GUSTS IN EXCESS OF 60 MPH... HEAVY RAINFALL... AND LARGE HAIL.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND NEAR WINDOWS.  DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED.  MOTORISTS
SHOULD AVOID LOW WATER CROSSINGS.


MJK

Nearby

Severe Thunderstorm Warnings in Michigan, 1995Every severe thunderstorm warning in 1995

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.