Alert archive / Michigan / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 21, NWS Grand Rapids, MI

April 12, 1996Ingham County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Apr 12, 1996, 9:36 PM EDT for Ingham County, Michigan. It was in force for 39 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
Apr 12, 1996, 9:36 PM EDT (01:36 UTC)
Expired
Apr 12, 1996, 10:15 PM EDT
In force
39 min
Issued by
NWS Grand Rapids, MI
Area
Whole counties

County Ingham County, MI

The radar

The Detroit radar (KDTX), 75 km from the middle of the area, began a volume at 01:39 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

Detroit, MI (KDTX), launched 00:00Z, 1.6 hours before the alert went out and 78 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 1996-04-13Temperature 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, Detroit, MI at 00:00Z on 1996-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 221 square meters per square second.19395878Sfc1 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
504 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
221 m²/s²
0-3 km storm-relative helicity
303 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 KGRR 130137
SVRGRR
MIC065-130215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
936 PM EDT FRI APR 12 1996
 
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL LOWER MICHIGAN
 
   ...NORTHERN INGHAM COUNTY
 
AT 933 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM MOVING INTO NORTHWEST INGHAM COUNTY JUST SOUTH OF
THE CITY OF LANSING. HAIL UP TO 3/4 INCHES IN DIAMETER WAS REPORTED WITH
THIS STORM NEAR DIMONDALE IN NORTHEAST EATON COUNTY. THE STORM SHOULD
AFFECT OKEMOS AND WILLIAMSTON BETWEEN 940 AND 1000 PM...AND SHOULD REACH
WEBBERVILLE BETWEEN 1005 AND 1015 PM. LARGE HAIL AND GUSTY WINDS CAN BE
EXPECTED WITH THIS STORM.
 
IF YOU ARE IN THE PATH OF THIS SEVERE THUNDERSTORM GET INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT :USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY.
 
BORIS
&

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 10:39 PM EDTSevere Thunderstorm WarningGRRAllegan, Barry36 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.