Alert archive / Michigan / Tornado Warnings in 2004

Tornado Warning 10, NWS Grand Rapids, MI

June 13, 2004Gratiot County, Michigan

NWS Grand Rapids, MI issued this tornado warning at Jun 13, 2004, 2:29 PM EDT for Gratiot County, Michigan. It was in force for 31 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
Jun 13, 2004, 2:29 PM EDT (18:29 UTC)
Expired
Jun 13, 2004, 3:00 PM EDT
In force
31 min
Issued by
NWS Grand Rapids, MI
Area
Counties, with a storm outline in the text

County Gratiot County, MI

The radar

The Grand Rapids radar (KGRR), 92 km from the middle of the area, began a volume at 18:30 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
Jun 13, 1:00 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 6.5 hours before the alert went out and 120 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 12:00Z on 2004-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 37 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2004-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
37 J/kg
Mixed-layer CIN
-135 J/kg
Mixed-layer LCL
673 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
42 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 
WFUS53 KGRR 131829
TORGRR
MIC057-131900-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
228 PM EDT SUN JUN 13 2004

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A

* TORNADO WARNING FOR...
  GRATIOT COUNTY IN CENTRAL MICHIGAN

* UNTIL 300 PM EDT

* AT 225 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING A TORNADO NEAR ELM HALL...OR ABOUT 8
  MILES WEST OF ALMA...MOVING EAST AT 35 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  ALMA...FOREST HILL AROUND 235 PM EDT
  ST. LOUIS AROUND 240 PM EDT
  BEEBE AROUND 245 PM EDT
  BRECKENRIDGE...RATHBONE AROUND 250 PM EDT
  WHEELER...LANGPORT...GALLOWAY AROUND 255 PM EDT

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.


LAT...LON 4329 8457 4327 8485 4344 8484 4346 8472
          4346 8437 4330 8437

$$

RG BM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 12:44 PM EDTSevere Thunderstorm WarningGRROttawa31 min
Jun 13, 12:55 PM EDTSevere Thunderstorm WarningGRRKent50 min
Jun 13, 1:28 PM EDTSevere Thunderstorm WarningGRRMontcalm47 min
Jun 13, 1:58 PM EDTTornado WarningGRRMontcalm32 min
Jun 13, 4:54 PM EDTSevere Thunderstorm WarningGRRIonia, Kent51 min
Jun 13, 5:22 PM EDTSevere Thunderstorm WarningGRRIsabella23 min
Jun 13, 5:25 PM EDTSevere Thunderstorm WarningGRRGratiot50 min
Jun 13, 5:34 PM EDTSevere Thunderstorm WarningGRRClinton56 min
Jun 13, 5:46 PM EDTSevere Thunderstorm WarningGRRIonia14 min

Nearby

Tornado Warnings in Michigan, 2004Every tornado warning in 2004Tornadoes in 2004

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.