Alert archive / Michigan / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 83, NWS Gaylord, MI

October 4, 2002Benzie County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Oct 4, 2002, 1:40 PM EDT for Benzie County, Michigan. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Oct 4, 2002, 1:40 PM EDT (17:40 UTC)
Expired
Oct 4, 2002, 2:15 PM EDT
In force
35 min
Issued by
NWS Gaylord, MI
Area
Counties, with a storm outline in the text

County Benzie County, MI

The radar

The NCL Michigan radar (KAPX), 110 km from the middle of the area, began a volume at 17:42 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Oct 4, 1:10 PM EDTTornado WatchSPC5 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 5.7 hours before the alert went out and 162 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 12:00Z on 2002-10-04Temperature 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, Green Bay/Straub, WI at 12:00Z on 2002-10-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 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
660 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

030 
WUUS53 KAPX 041740
SVRAPN
MIC019-041815-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
139 PM EDT FRI OCT 4 2002

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BENZIE COUNTY IN NORTHWEST LOWER MICHIGAN

* UNTIL 215 PM EDT

* AT 137 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A LINE OF SEVERE THUNDERSTORMS FROM 2 MILES NORTH OF FRANKFORT TO  
  13 MILES NORTHEAST OF MANISTEE...MOVING NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORMS WILL REACH...
  HONOR AROUND 150 PM EDT
  BENDON AROUND 155 PM EDT
  LAKE ANN AROUND 200 PM EDT

REMAIN INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. THIS
STORM IS CAPABLE OF PRODUCING WIND GUSTS BETWEEN 60 AND 80 MPH. WINDS
THIS HIGH CAN DOWN TREES AND POWER LINES.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS OCCASIONALLY PRODUCE TORNADOES...AND CAN DO SO QUICKLY.

LAT...LON 4452 8605 4452 8623 4470 8626 4473 8617
          4473 8610 4477 8606 4477 8582 4452 8583

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 4, 6:20 AM EDTSevere Thunderstorm WarningAPXGrand Traverse40 min
Oct 4, 6:22 AM EDTSpecial Marine WarningAPX38 min
Oct 4, 12:30 PM EDTSpecial Marine WarningAPX90 min
Oct 4, 12:30 PM EDTSpecial Marine WarningAPX90 min
Oct 4, 12:30 PM EDTSpecial Marine WarningAPX90 min
Oct 4, 12:30 PM EDTSpecial Marine WarningAPX90 min
Oct 4, 1:11 PM EDTSevere Thunderstorm WarningAPXManistee49 min
Oct 4, 2:27 PM EDTSpecial Marine WarningAPX63 min
Oct 4, 2:27 PM EDTSpecial Marine WarningAPX63 min
Oct 4, 2:56 PM EDTSevere Thunderstorm WarningAPXEmmet34 min
Oct 4, 3:06 PM EDTSpecial Marine WarningAPX84 min
Oct 4, 4:23 PM EDTSpecial Marine WarningAPX82 min
Oct 4, 5:30 PM EDTSpecial Marine WarningAPX60 min
Oct 4, 5:30 PM EDTSpecial Marine WarningAPX60 min
Oct 4, 7:38 PM EDTSpecial Marine WarningAPX52 min
Oct 4, 7:38 PM EDTSpecial Marine WarningAPX52 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2002Every severe thunderstorm warning in 2002

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.