Alert archive / Michigan / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 49, NWS Grand Rapids, MI

June 1, 2000Muskegon County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Jun 1, 2000, 9:37 PM EDT for Muskegon County, Michigan. It was in force for 38 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: Jun 1, 2000, 9:37 PM EDT (01:37 UTC)
Expired: Jun 1, 2000, 10:15 PM EDT
In force: 38 min
Issued by: NWS Grand Rapids, MI
Area: Whole counties

County Muskegon County, MI

The radar

The Grand Rapids radar (KGRR), 65 km from the middle of the area, began a volume at 01:37 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 1, 9:58 PM EDT	Thunderstorm Wind 53 E	Muskegon, 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jun 1, 8:30 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 1.6 hours before the alert went out and 233 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: 692 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1425 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 168 m²/s²
0-3 km storm-relative helicity: 442 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 8.8

Open this sounding in Storm Lab

The text

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

461 
WUUS53 KGRR 020137
SVRGRR
MIC121-020215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
937 PM EDT THU JUN 1 2000

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A

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

* UNTIL 1015 PM EDT

* AT 936 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES NORTH     
  OF MONTAGUE TO 12 MILES WEST OF ROOSEVELT PARK...MOVING EAST AT 
  45 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
   DALTON AROUND 940 PM EDT
   MUSKEGON AROUND 945 PM EDT
   CLOVERVILLE AROUND 950 PM EDT
   FRUITPORT AROUND 955 PM EDT
   RAVENNA AROUND 1005 PM EDT

LARGE HAIL...DAMAGING WINDS...AND HEAVY RAIN ARE EXPECTED FROM THIS
STORM. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THE STORM HAS PASSED.

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 1, 9:19 PM EDT	Severe Thunderstorm Warning	GRR	Mason, Oceana	41 min
Jun 1, 9:47 PM EDT	Severe Thunderstorm Warning	GRR	Lake, Newaygo	28 min
Jun 1, 10:17 PM EDT	Severe Thunderstorm Warning	GRR	Mecosta, Montcalm	43 min
Jun 1, 10:29 PM EDT	Severe Thunderstorm Warning	GRR	Kent	31 min
Jun 1, 10:35 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Van Buren	40 min
Jun 1, 10:49 PM EDT	Severe Thunderstorm Warning	GRR	Ionia	26 min
Jun 1, 11:00 PM EDT	Severe Thunderstorm Warning	GRR	Barry	30 min
Jun 1, 11:03 PM EDT	Severe Thunderstorm Warning	GRR	Gratiot, Montcalm	27 min
Jun 1, 11:15 PM EDT	Severe Thunderstorm Warning	GRR	Kalamazoo	45 min
Jun 1, 11:19 PM EDT	Severe Thunderstorm Warning	GRR	Clinton, Eaton	41 min
Jun 1, 11:54 PM EDT	Severe Thunderstorm Warning	GRR	Ingham	36 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2000 Every severe thunderstorm warning in 2000

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; radar from the NEXRAD Level II archive.