Alert archive / Michigan / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 515

June 23, 20044 states

The Storm Prediction Center issued this severe thunderstorm watch at Jun 23, 2004, 5:00 PM CDT for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jun 23, 2004, 5:00 PM CDT (22:00 UTC)
Expired: Jun 23, 2004, 11:00 PM CDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 66 counties

Clinton County, IA, Dubuque County, IA, Jackson County, IA, Jones County, IA, Boone County, IL, Carroll County, IL, Cook County, IL, DeKalb County, IL, DuPage County, IL, Jo Daviess County, IL, Kane County, IL, Lake County, IL, McHenry County, IL, Ogle County, IL, Stephenson County, IL, Winnebago County, IL, Allegan County, MI, Barry County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Clinton County, MI, Eaton County, MI, Genesee County, MI, Gratiot County, MI, Hillsdale County, MI, Ingham County, MI, Ionia County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Monroe County, MI, Montcalm County, MI, Muskegon County, MI, Oakland County, MI, Ottawa County, MI, Saginaw County, MI, Saint Joseph County, MI, Shiawassee County, MI, Tuscola County, MI, Van Buren County, MI, Washtenaw County, MI, Wayne County, MI, Columbia County, WI, Crawford County, WI, Dane County, WI, Dodge County, WI, Grant County, WI, Green County, WI, Iowa County, WI, Jefferson County, WI, Kenosha County, WI, Lafayette County, WI, Milwaukee County, WI, Ozaukee County, WI, Racine County, WI, Richland County, WI, Rock County, WI, Sauk County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 63 km from the middle of the area, began a volume at 21:59 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

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

Issued	Product	Office	Counties	Lasted
Jun 23, 5:03 PM CDT	Severe Thunderstorm Warning	MKX	Racine	27 min
Jun 23, 5:30 PM CDT	Severe Thunderstorm Warning	LOT	Lake, McHenry	45 min
Jun 23, 5:38 PM CDT	Severe Thunderstorm Warning	GRR	Muskegon	52 min
Jun 23, 6:27 PM CDT	Severe Thunderstorm Warning	ARX	Crawford, Vernon	63 min
Jun 23, 6:55 PM CDT	Severe Thunderstorm Warning	GRR	Montcalm	50 min
Jun 23, 7:08 PM CDT	Severe Thunderstorm Warning	ARX	Richland	52 min
Jun 23, 7:23 PM CDT	Severe Thunderstorm Warning	MKX	Iowa, Sauk	52 min
Jun 23, 7:45 PM CDT	Tornado Warning	MKX	Iowa, Sauk	30 min
Jun 23, 7:47 PM CDT	Severe Thunderstorm Warning	DTX	Saginaw	73 min
Jun 23, 7:47 PM CDT	Severe Thunderstorm Warning	GRR	Gratiot	28 min
Jun 23, 8:03 PM CDT	Severe Thunderstorm Warning	DTX	Shiawassee	57 min
Jun 23, 8:05 PM CDT	Tornado Warning	MKX	Dane	55 min
Jun 23, 8:07 PM CDT	Tornado Warning	DTX	Saginaw	53 min
Jun 23, 8:17 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Sauk	58 min
Jun 23, 8:31 PM CDT	Tornado Warning	MKX	Dodge, Fond du Lac	59 min
Jun 23, 8:32 PM CDT	Severe Thunderstorm Warning	DTX	Genesee	58 min
Jun 23, 8:57 PM CDT	Severe Thunderstorm Warning	MKX	Dane, Jefferson	33 min
Jun 23, 9:09 PM CDT	Severe Thunderstorm Warning	MKX	Ozaukee, Sheboygan, Washington	36 min
Jun 23, 9:10 PM CDT	Severe Thunderstorm Warning	DTX	Lapeer	80 min
Jun 23, 9:18 PM CDT	Tornado Warning	MKX	Washington	27 min
Jun 23, 9:21 PM CDT	Severe Thunderstorm Warning	MKX	Jefferson, Rock, Walworth, Waukesha	39 min
Jun 23, 9:27 PM CDT	Tornado Warning	MKX	Jefferson, Walworth	33 min
Jun 23, 9:35 PM CDT	Tornado Warning	MKX	Ozaukee, Sheboygan	25 min
Jun 23, 9:37 PM CDT	Tornado Warning	MKX	Waukesha	38 min
Jun 23, 9:42 PM CDT	Severe Thunderstorm Warning	MKX	Milwaukee, Racine	48 min
Jun 23, 10:01 PM CDT	Severe Thunderstorm Warning	MKX	Kenosha	29 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.0 hours before the alert went out and 182 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1093 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 147 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 23, 11:23 AM CDT	Mesoscale Discussion	SPC	Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 25 more	2 hr
Jun 23, 3:45 PM CDT	Mesoscale Discussion	SPC	Boone, Jo Daviess, McHenry, Stephenson, Winnebago	90 min
Jun 23, 6:40 PM CDT	Severe Thunderstorm Watch	SPC	Antrim, Benzie, Clare, Grand Traverse, Isabella, Kalkaska and 10 more	5 hr
Jun 23, 10:17 AM CDT	Mesoscale Discussion	SPC	Ashland, Barron, Bayfield, Burnett, Douglas, Dunn and 4 more	118 min
Jun 23, 4:05 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Barron, Buffalo, Chippewa, Clark, Dunn and 17 more	5 hr
Jun 23, 6:34 PM CDT	Mesoscale Discussion	SPC	Adams, Calumet, Columbia, Dodge, Fond du Lac, Green Lake and 14 more	116 min

Nearby

Severe Thunderstorm Watches in Michigan, 2004 Severe Thunderstorm Watches in Wisconsin, 2004 Severe Thunderstorm Watches in Illinois, 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.