Alert archive / Michigan / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 113, NWS Grand Rapids, MI

June 24, 2004Muskegon County, Ottawa County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Jun 24, 2004, 12:01 AM EDT for Muskegon County, Ottawa County, Michigan. It was in force for 59 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 24, 2004, 12:01 AM EDT (04:01 UTC)
Expired: Jun 24, 2004, 1:00 AM EDT
In force: 59 min
Issued by: NWS Grand Rapids, MI
Area: Counties, with a storm outline in the text

Counties Muskegon County, MI, Ottawa County, MI

The radar

The Grand Rapids radar (KGRR), 48 km from the middle of the area, began a volume at 04:01 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.

What was reported inside it

Time	Report	Where	Remark
Jun 24, 12:24 AM EDT	TSTM WND DMG	Grand Haven, MI	MULTIPLE TREES DOWN. GRAND HAVEN AND SPRING LAKE.
Jun 24, 12:25 AM EDT	TSTM WND GST 60	Norton Shores, MI

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 23, 11:30 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 4.0 hours before the alert went out and 219 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 742 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 1134 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 142 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KGRR 240401
SVRGRR
MIC121-139-240500-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1201 AM EDT THU JUN 24 2004

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MUSKEGON COUNTY IN WEST CENTRAL MICHIGAN
  OTTAWA COUNTY IN SOUTHWEST MICHIGAN

* UNTIL 100 AM EDT

* AT 1156 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 8 MILES WEST OF NORTH MUSKEGON TO
  33 MILES WEST OF PORT SHELDON...MOVING EAST AT 50 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  MUSKEGON ...ROOSEVELT PARK...NORTON SHORES AROUND 1210 AM EDT
  CLOVERVILLE...FRUITPORT...FERRYSBURG AROUND 1215 AM EDT
  SULLIVAN...EVERGREEN PARK...SPRING LAKE...GRAND HAVEN AROUND 1220
  AM EDT

HAIL UP TO ONE INCH IN DIAMETER AND WINDS GREATER THAN 60 MILES AN
HOUR ARE EXPECTED FROM THIS STORM. SEEK SHELTER IN A STURDY STRUCTURE
UNTIL THE STORM HAS PASSED.


LAT...LON 4326 8609 4317 8581 4303 8584 4280 8584
          4279 8621 4309 8626 4333 8640

$$

DUKE 93

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 8:47 PM EDT	Severe Thunderstorm Warning	GRR	Gratiot	28 min
Jun 23, 11:00 PM EDT	Special Marine Warning	GRR		2 hr
Jun 23, 11:00 PM EDT	Special Marine Warning	GRR		2 hr
Jun 23, 11:00 PM EDT	Special Marine Warning	GRR		2 hr
Jun 23, 11:00 PM EDT	Special Marine Warning	GRR		2 hr
Jun 23, 11:42 PM EDT	Severe Thunderstorm Warning	GRR	Newaygo	33 min
Jun 24, 12:36 AM EDT	Severe Thunderstorm Warning	GRR	Kent	54 min
Jun 24, 12:50 AM EDT	Severe Thunderstorm Warning	GRR	Allegan	55 min
Jun 24, 12:57 AM EDT	Severe Thunderstorm Warning	GRR	Van Buren	63 min
Jun 24, 1:01 AM EDT	Special Marine Warning	GRR		59 min
Jun 24, 1:01 AM EDT	Special Marine Warning	GRR		59 min
Jun 24, 1:18 AM EDT	Severe Thunderstorm Warning	GRR	Ionia	42 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2004 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.