Alert archive / Michigan / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 414

June 9, 2004DeKalb County, Steuben County, Indiana; 26 counties in Michigan; 7 counties in Ohio

The Storm Prediction Center issued this severe thunderstorm watch at Jun 9, 2004, 11:35 AM EST for DeKalb County, Steuben County, Indiana; 26 counties in Michigan; 7 counties in Ohio. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Jun 9, 2004, 11:35 AM EST (16:35 UTC)
Expired: Jun 9, 2004, 5:00 PM EST
In force: 5 hr
Issued by: the Storm Prediction Center

All 35 counties

DeKalb County, IN, Steuben County, IN, Branch County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Genesee County, MI, Gratiot County, MI, Hillsdale County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Jackson County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Midland County, MI, Monroe County, MI, Montcalm County, MI, Oakland County, MI, Saginaw County, MI, Saint Clair County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Washtenaw County, MI, Wayne County, MI, Erie County, OH, Fulton County, OH, Lucas County, OH, Ottawa County, OH, Sandusky County, OH, Williams County, OH, Wood County, OH

The radar

The Detroit radar (KDTX), 58 km from the middle of the area, began a volume at 16:37 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.

Warnings issued inside it

28 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jun 9, 11:45 AM EST	Severe Thunderstorm Warning	GRR	Eaton	60 min
Jun 9, 11:46 AM EST	Severe Thunderstorm Warning	DTX	Saginaw, Tuscola	59 min
Jun 9, 11:54 AM EST	Tornado Warning	DTX	Tuscola	66 min
Jun 9, 11:56 AM EST	Severe Thunderstorm Warning	GRR	Calhoun	34 min
Jun 9, 12:00 PM EST	Tornado Warning	DTX	Tuscola	60 min
Jun 9, 12:13 PM EST	Severe Thunderstorm Warning	DTX	Oakland	62 min
Jun 9, 12:17 PM EST	Severe Thunderstorm Warning	GRR	Ingham	28 min
Jun 9, 12:21 PM EST	Severe Thunderstorm Warning	DTX	Lapeer	54 min
Jun 9, 12:21 PM EST	Severe Thunderstorm Warning	GRR	Jackson	54 min
Jun 9, 12:39 PM EST	Severe Thunderstorm Warning	DTX	Livingston	81 min
Jun 9, 12:39 PM EST	Tornado Warning	GRR	Jackson	36 min
Jun 9, 12:42 PM EST	Severe Thunderstorm Warning	GRR	Ingham	33 min
Jun 9, 12:45 PM EST	Tornado Warning	DTX	Washtenaw	75 min
Jun 9, 12:56 PM EST	Severe Thunderstorm Warning	DTX	Sanilac	64 min
Jun 9, 1:00 PM EST	Severe Thunderstorm Warning	DTX	Macomb	60 min
Jun 9, 1:18 PM EST	Severe Thunderstorm Warning	DTX	Saginaw	42 min
Jun 9, 1:31 PM EST	Tornado Warning	GRR	Gratiot	44 min
Jun 9, 1:34 PM EST	Severe Thunderstorm Warning	DTX	Genesee	56 min
Jun 9, 1:40 PM EST	Severe Thunderstorm Warning	DTX	Wayne	80 min
Jun 9, 1:40 PM EST	Tornado Warning	DTX	Genesee	65 min
Jun 9, 2:38 PM EST	Severe Thunderstorm Warning	GRR	Gratiot	37 min
Jun 9, 3:13 PM EST	Severe Thunderstorm Warning	DTX	Saginaw	77 min
Jun 9, 3:24 PM EST	Severe Thunderstorm Warning	DTX	Shiawassee	51 min
Jun 9, 3:25 PM EST	Flash Flood Warning	DTX	Genesee, Lapeer, Saginaw, Tuscola	110 min
Jun 9, 3:43 PM EST	Severe Thunderstorm Warning	DTX	Genesee	62 min
Jun 9, 4:10 PM EST	Severe Thunderstorm Warning	CLE	Erie, Ottawa	65 min
Jun 9, 4:51 PM EST	Severe Thunderstorm Warning	CLE	Sandusky	54 min
Jun 9, 4:53 PM EST	Severe Thunderstorm Warning	DTX	Livingston	82 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 4.6 hours before the alert went out and 61 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

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 9, 10:21 AM EST	Mesoscale Discussion	SPC	DeKalb, Elkhart, LaGrange, LaPorte, Marshall, Noble and 2 more	114 min
Jun 9, 1:51 PM EST	Mesoscale Discussion	SPC	Steuben	84 min
Jun 9, 4:27 PM EST	Mesoscale Discussion	SPC	Steuben	63 min
Jun 9, 5:54 PM EST	Mesoscale Discussion	SPC	Bartholomew, Daviess, Dearborn, Decatur, Franklin, Gibson and 7 more	96 min
Jun 9, 5:05 PM EST	Severe Thunderstorm Watch	SPC	Barry, Bay, Clinton, Eaton, Genesee, Gratiot and 23 more	6 hr
Jun 9, 12:00 PM EST	Severe Thunderstorm Watch	SPC	Ashland, Ashtabula, Crawford, Cuyahoga, Delaware, Erie and 16 more	5 hr
Jun 9, 2:44 PM EST	Mesoscale Discussion	SPC	Ashland, Ashtabula, Crawford, Cuyahoga, Delaware, Erie and 15 more	91 min
Jun 9, 4:50 PM EST	Severe Thunderstorm Watch	SPC	Ashland, Ashtabula, Carroll, Champaign, Columbiana, Crawford and 29 more	4 hr

Nearby

Severe Thunderstorm Watches in Michigan, 2004 Severe Thunderstorm Watches in Ohio, 2004 Severe Thunderstorm Watches in Indiana, 2004 Every severe thunderstorm watch 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.