Alert archive / Michigan / Tornado Warnings in 2004

Tornado Warning 25, NWS Detroit, MI

June 9, 2004Genesee County, Michigan

NWS Detroit, MI issued this tornado warning at Jun 9, 2004, 2:40 PM EDT for Genesee County, Michigan. It was in force for 65 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 9, 2004, 2:40 PM EDT (18:40 UTC)
Expired: Jun 9, 2004, 3:45 PM EDT
In force: 65 min
Issued by: NWS Detroit, MI
Area: Counties, with a storm outline in the text

County Genesee County, MI

The radar

The Detroit radar (KDTX), 57 km from the middle of the area, began a volume at 18:40 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 9, 3:00 PM EDT	TSTM WND DMG	Montrose, MI	2.5 FOOT DIAMTERE TREE UPROOTED AND POWER LINES DOWN ON HOUSE.
Jun 9, 3:05 PM EDT	TSTM WND GST 70	4 E Mount Morris, 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 9, 12:35 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 6.7 hours before the alert went out and 57 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: 1547 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 972 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: 34 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.

272 
WFUS53 KDTX 091840
TORDTX
MIC049-091945-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
240 PM EDT WED JUN 9 2004

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

* TORNADO WARNING FOR...
  GENESEE COUNTY IN SOUTHEAST MICHIGAN

* UNTIL 345 PM EDT

* AT 240 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR
  MONTROSE...OR ABOUT 13 MILES NORTHWEST OF FLINT...MOVING EAST AT 30
  MPH.

* THE TORNADO WILL BE NEAR...
  CLIO AROUND 250 PM EDT

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IN A HOME OR
BUSINESS IS AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID
WINDOWS.

LAT...LON 4323 8394 4309 8394 4308 8346 4324 8347

$$

BGM / SC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 12:46 PM EDT	Severe Thunderstorm Warning	DTX	Saginaw, Tuscola	59 min
Jun 9, 12:54 PM EDT	Tornado Warning	DTX	Tuscola	66 min
Jun 9, 1:00 PM EDT	Tornado Warning	DTX	Tuscola	60 min
Jun 9, 1:13 PM EDT	Severe Thunderstorm Warning	DTX	Oakland	62 min
Jun 9, 1:21 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer	54 min
Jun 9, 1:39 PM EDT	Severe Thunderstorm Warning	DTX	Livingston	81 min
Jun 9, 1:45 PM EDT	Tornado Warning	DTX	Washtenaw	75 min
Jun 9, 1:48 PM EDT	Special Marine Warning	DTX		117 min
Jun 9, 1:48 PM EDT	Special Marine Warning	DTX		117 min
Jun 9, 1:56 PM EDT	Severe Thunderstorm Warning	DTX	Sanilac	64 min
Jun 9, 2:00 PM EDT	Severe Thunderstorm Warning	DTX	Macomb	60 min
Jun 9, 2:17 PM EDT	Special Marine Warning	DTX		58 min
Jun 9, 2:18 PM EDT	Severe Thunderstorm Warning	DTX	Saginaw	42 min
Jun 9, 2:34 PM EDT	Severe Thunderstorm Warning	DTX	Genesee	56 min
Jun 9, 2:40 PM EDT	Severe Thunderstorm Warning	DTX	Wayne	80 min
Jun 9, 4:13 PM EDT	Severe Thunderstorm Warning	DTX	Saginaw	77 min
Jun 9, 4:24 PM EDT	Severe Thunderstorm Warning	DTX	Shiawassee	51 min
Jun 9, 4:25 PM EDT	Flash Flood Warning	DTX	Genesee, Lapeer, Saginaw, Tuscola	110 min
Jun 9, 4:43 PM EDT	Severe Thunderstorm Warning	DTX	Genesee	62 min
Jun 9, 5:53 PM EDT	Severe Thunderstorm Warning	DTX	Livingston	82 min
Jun 9, 6:24 PM EDT	Severe Thunderstorm Warning	DTX	Oakland	81 min

Nearby

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