Alert archive / Michigan / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 210

May 17, 20046 counties in Indiana; 35 counties in Michigan; 4 counties in Ohio

The Storm Prediction Center issued this severe thunderstorm watch at May 17, 2004, 12:05 PM EST for 6 counties in Indiana; 35 counties in Michigan; 4 counties in Ohio. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 17, 2004, 12:05 PM EST (17:05 UTC)
Expired
May 17, 2004, 7:00 PM EST
In force
7 hr
Issued by
the Storm Prediction Center
All 45 counties

DeKalb County, IN, Elkhart County, IN, LaGrange County, IN, Noble County, IN, Saint Joseph County, IN, Steuben County, IN, Allegan County, MI, Barry County, MI, Bay 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, Huron County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Mecosta County, MI, Midland County, MI, Monroe County, MI, Montcalm County, MI, Newaygo County, MI, Oakland County, MI, Saginaw County, MI, Saint Joseph County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Van Buren County, MI, Washtenaw County, MI, Wayne County, MI, Fulton County, OH, Lucas County, OH, Williams County, OH, Wood County, OH

The radar

The Grand Rapids radar (KGRR), 69 km from the middle of the area, began a volume at 17:07 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

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

IssuedProductOfficeCountiesLasted
May 17, 1:04 PM ESTSevere Thunderstorm WarningGRRJackson41 min
May 17, 1:25 PM ESTSevere Thunderstorm WarningIWXWilliams35 min
May 17, 1:30 PM ESTSevere Thunderstorm WarningDTXWashtenaw75 min
May 17, 1:43 PM ESTSevere Thunderstorm WarningDTXLivingston77 min
May 17, 1:55 PM ESTSevere Thunderstorm WarningCLELucas35 min
May 17, 2:08 PM ESTSevere Thunderstorm WarningDTXWayne67 min
May 17, 2:22 PM ESTSevere Thunderstorm WarningDTXMidland53 min
May 17, 2:44 PM ESTSevere Thunderstorm WarningDTXGenesee, Shiawassee61 min
May 17, 2:48 PM ESTSevere Thunderstorm WarningDTXSaginaw57 min
May 17, 3:06 PM ESTSevere Thunderstorm WarningDTXTuscola54 min
May 17, 3:48 PM ESTSevere Thunderstorm WarningDTXHuron72 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, 5.1 hours before the alert went out and 138 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, Detroit, MI at 12:00Z on 2004-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Detroit, MI at 12:00Z on 2004-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 188 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
694 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
188 m²/s²
0-3 km storm-relative helicity
252 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.

IssuedProductOfficeCountiesLasted
May 17, 10:22 AM ESTMesoscale DiscussionSPCAllen, Benton, Carroll, Cass, Clinton, DeKalb and 26 more2 hr
May 17, 1:09 PM ESTMesoscale DiscussionSPCAdams, Bartholomew, Blackford, Brown, Clark, Crawford and 44 more2 hr
May 17, 3:05 PM ESTMesoscale DiscussionSPCDeKalb, Elkhart, LaGrange, Saint Joseph, Steuben85 min
May 17, 12:41 PM ESTMesoscale DiscussionSPCMenominee3 hr
May 17, 4:46 PM ESTMesoscale DiscussionSPCArenac, Bay, Clinton, Genesee, Gladwin, Gratiot and 19 more89 min
May 17, 1:45 PM ESTSevere Thunderstorm WatchSPCAshland, Crawford, Cuyahoga, Erie, Geauga, Hancock and 12 more5 hr
May 17, 4:23 PM ESTMesoscale DiscussionSPCAshland, Crawford, Cuyahoga, Erie, Geauga, Hancock and 12 more2 hr
May 17, 5:50 PM ESTMesoscale DiscussionSPCAshtabula, Columbiana, Geauga, Mahoning, Medina, Portage and 4 more85 min

Nearby

Severe Thunderstorm Watches in Michigan, 2004Severe Thunderstorm Watches in Indiana, 2004Severe Thunderstorm Watches in Ohio, 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.