Alert archive / Michigan / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 622

July 13, 200450 counties in Michigan; 24 counties in Wisconsin

The Storm Prediction Center issued this severe thunderstorm watch at Jul 13, 2004, 4:05 PM EDT for 50 counties in Michigan; 24 counties in Wisconsin. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Jul 13, 2004, 4:05 PM EDT (20:05 UTC)
Expired
Jul 14, 2004, 12:00 AM EDT
In force
8 hr
Issued by
the Storm Prediction Center
All 74 counties

Alcona County, MI, Alpena County, MI, Antrim County, MI, Arenac County, MI, Barry County, MI, Bay County, MI, Benzie County, MI, Cheboygan County, MI, Clare County, MI, Clinton County, MI, Crawford County, MI, Eaton County, MI, Genesee County, MI, Gladwin County, MI, Grand Traverse County, MI, Gratiot County, MI, Huron County, MI, Ingham County, MI, Ionia County, MI, Iosco County, MI, Isabella County, MI, Kalkaska County, MI, Kent County, MI, Lake County, MI, Lapeer County, MI, Leelanau County, MI, Livingston County, MI, Manistee County, MI, Mason County, MI, Mecosta County, MI, Midland County, MI, Missaukee County, MI, Montcalm County, MI, Montmorency County, MI, Muskegon County, MI, Newaygo County, MI, Oakland County, MI, Oceana County, MI, Ogemaw County, MI, Osceola County, MI, Oscoda County, MI, Otsego County, MI, Ottawa County, MI, Presque Isle County, MI, Roscommon County, MI, Saginaw County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Wexford County, MI, Brown County, WI, Calumet County, WI, Columbia County, WI, Dane County, WI, Dodge County, WI, Door County, WI, Fond du Lac County, WI, Green County, WI, Green Lake County, WI, Jefferson County, WI, Kenosha County, WI, Kewaunee County, WI, Manitowoc County, WI, Milwaukee County, WI, Oconto County, WI, Outagamie County, WI, Ozaukee County, WI, Racine County, WI, Rock County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI, Winnebago County, WI

The radar

The Grand Rapids radar (KGRR), 110 km from the middle of the area, began a volume at 20:05 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

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

IssuedProductOfficeCountiesLasted
Jul 13, 4:07 PM EDTSevere Thunderstorm WarningGRBCalumet, Manitowoc53 min
Jul 13, 4:19 PM EDTSevere Thunderstorm WarningGRBWinnebago41 min
Jul 13, 4:28 PM EDTSevere Thunderstorm WarningAPXCrawford, Roscommon47 min
Jul 13, 4:41 PM EDTSevere Thunderstorm WarningGRBMarinette, Oconto49 min
Jul 13, 4:49 PM EDTTornado WarningGRBManitowoc41 min
Jul 13, 4:52 PM EDTSevere Thunderstorm WarningAPXMissaukee38 min
Jul 13, 4:53 PM EDTSevere Thunderstorm WarningGRBCalumet37 min
Jul 13, 4:59 PM EDTSevere Thunderstorm WarningMKXFond du Lac46 min
Jul 13, 5:12 PM EDTSevere Thunderstorm WarningGRBDoor48 min
Jul 13, 5:21 PM EDTSevere Thunderstorm WarningAPXAlcona, Alpena54 min
Jul 13, 5:50 PM EDTSevere Thunderstorm WarningMKXFond du Lac, Sheboygan55 min
Jul 13, 5:56 PM EDTSevere Thunderstorm WarningAPXPresque Isle49 min
Jul 13, 6:35 PM EDTSevere Thunderstorm WarningAPXCheboygan40 min
Jul 13, 6:38 PM EDTSevere Thunderstorm WarningAPXOtsego52 min
Jul 13, 6:53 PM EDTSevere Thunderstorm WarningGRRLake52 min
Jul 13, 7:01 PM EDTSevere Thunderstorm WarningGRRMuskegon44 min
Jul 13, 7:24 PM EDTSevere Thunderstorm WarningGRROsceola51 min
Jul 13, 7:37 PM EDTSevere Thunderstorm WarningGRRNewaygo38 min
Jul 13, 8:03 PM EDTSevere Thunderstorm WarningGRRMecosta42 min
Jul 13, 8:08 PM EDTSevere Thunderstorm WarningDTXSaginaw67 min
Jul 13, 8:20 PM EDTSevere Thunderstorm WarningGRRGratiot, Montcalm40 min
Jul 13, 8:23 PM EDTSevere Thunderstorm WarningGRRKent37 min
Jul 13, 8:27 PM EDTSevere Thunderstorm WarningGRROttawa33 min
Jul 13, 8:29 PM EDTSevere Thunderstorm WarningGRRBarry46 min
Jul 13, 8:32 PM EDTSevere Thunderstorm WarningGRROttawa28 min
Jul 13, 8:40 PM EDTSevere Thunderstorm WarningGRRIsabella50 min
Jul 13, 8:42 PM EDTSevere Thunderstorm WarningAPXAlcona48 min
Jul 13, 8:47 PM EDTSevere Thunderstorm WarningAPXIosco, Ogemaw43 min
Jul 13, 8:52 PM EDTSevere Thunderstorm WarningGRRIsabella38 min
Jul 13, 8:53 PM EDTSevere Thunderstorm WarningGRRIonia37 min
Jul 13, 8:59 PM EDTSevere Thunderstorm WarningGRRMontcalm31 min
Jul 13, 9:06 PM EDTSevere Thunderstorm WarningDTXBay39 min
Jul 13, 9:08 PM EDTSevere Thunderstorm WarningGRRClinton52 min
Jul 13, 9:16 PM EDTSevere Thunderstorm WarningDTXShiawassee74 min
Jul 13, 9:28 PM EDTSevere Thunderstorm WarningDTXTuscola77 min
Jul 13, 9:29 PM EDTSevere Thunderstorm WarningGRRIonia31 min
Jul 13, 9:33 PM EDTSevere Thunderstorm WarningDTXHuron87 min
Jul 13, 9:36 PM EDTSevere Thunderstorm WarningDTXSaginaw54 min
Jul 13, 9:45 PM EDTSevere Thunderstorm WarningDTXGenesee75 min
Jul 13, 10:01 PM EDTSevere Thunderstorm WarningGRRClinton, Eaton44 min
Jul 13, 10:12 PM EDTSevere Thunderstorm WarningGRRIngham78 min
Jul 13, 10:13 PM EDTSevere Thunderstorm WarningDTXOakland92 min
Jul 13, 10:15 PM EDTSevere Thunderstorm WarningGRRIngham75 min
Jul 13, 10:16 PM EDTSevere Thunderstorm WarningDTXLivingston59 min
Jul 13, 10:22 PM EDTSevere Thunderstorm WarningDTXLapeer53 min
Jul 13, 10:46 PM EDTSevere Thunderstorm WarningGRREaton29 min
Jul 13, 10:50 PM EDTSevere Thunderstorm WarningDTXSanilac70 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, 8.1 hours before the alert went out and 165 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2004-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1324 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2004-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1324 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
841 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 11:08 AM EDTMesoscale DiscussionSPCAlger, Alpena, Antrim, Benzie, Charlevoix, Cheboygan and 18 more2 hr
Jul 13, 11:55 AM EDTSevere Thunderstorm WatchSPCAntrim, Benzie, Charlevoix, Cheboygan, Chippewa, Delta and 8 more6 hr
Jul 13, 3:10 PM EDTMesoscale DiscussionSPCAntrim, Benzie, Charlevoix, Cheboygan, Chippewa, Delta and 8 more2 hr
Jul 13, 7:08 PM EDTMesoscale DiscussionSPCBarry, Bay, Calhoun, Clare, Clinton, Eaton and 21 more2 hr
Jul 13, 2:20 AM EDTSevere Thunderstorm WatchSPCAshland, Barron, Bayfield, Burnett, Douglas, Iron and 5 more6 hr
Jul 13, 4:35 AM EDTMesoscale DiscussionSPCBarron, Burnett, Polk, Saint Croix, Washburn55 min
Jul 13, 2:19 PM EDTMesoscale DiscussionSPCAdams, Calumet, Columbia, Crawford, Dane, Dodge and 21 more116 min

Nearby

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