Alert archive / Michigan / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 40, NWS Northern Indiana

May 29, 1998Branch County, Michigan

NWS Northern Indiana issued this severe thunderstorm warning at May 29, 1998, 2:09 AM EDT for Branch County, Michigan. It was in force for 36 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 29, 1998, 2:09 AM EDT (06:09 UTC)
Expired
May 29, 1998, 2:45 AM EDT
In force
36 min
Issued by
NWS Northern Indiana
Area
Whole counties

County Branch County, MI

What was reported inside it

TimeReportWhereRemark
May 29, 2:20 AM EDTThunderstorm Wind 50Bronson, MI

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 6.2 hours before the alert went out and 161 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 1998-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1857 joules per kilogram.LCLEL10008507005003002001001 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 1998-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
1857 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1175 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
151 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.

136 
WUUS53 KIWX 290612 RRA
SVRFWA
MIC023-290645-

BULLETIN- EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
109 AM EST FRI MAY 29 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BRANCH COUNTY IN SOUTH CENTRAL LOWER MICHIGAN

* UNTIL 245 AM EDT (145 AM EST)

* AT 208 AM EDT... SPOTTER REPORTS INDICATED A SEVERE THUNDERSTORM
  16 MILES WEST SOUTHWEST OF COLDWATER OR 8 MILES SOUTH SOUTHWEST
  OF MATTESON MOVING EAST AT 50 MPH.

* SOME LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM ARE...
  MATTESON
  COLDWATER
  RAY
  QUINCY

SEEK SHELTER INSIDE A STURDY BUILDING AWAY FROM WINDOWS.  THIS
SEVERE STORM HAS HAD A HISTORY OF PRODUCING DAMAGING WIND GUSTS.

TEH/JA

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 29, 1:41 AM EDTSevere Thunderstorm WarningIWXCass, Saint Joseph49 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1998Every severe thunderstorm warning in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.