Alert archive / Michigan / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 643
The Storm Prediction Center issued this severe thunderstorm watch at Jul 18, 2005, 11:10 AM EDT for 54 counties in Michigan. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 18, 2005, 11:10 AM EDT (15:10 UTC)
- Expired
- Jul 18, 2005, 7:00 PM EDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
All 54 counties
Alcona County, MI, Allegan County, MI, Alpena County, MI, Arenac County, MI, Barry County, MI, Bay County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Cheboygan County, MI, Clare County, MI, Clinton County, MI, Crawford County, MI, Eaton County, MI, Genesee County, MI, Gladwin County, MI, Gratiot County, MI, Hillsdale County, MI, Huron County, MI, Ingham County, MI, Ionia County, MI, Iosco County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kalkaska County, MI, Kent County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Mecosta County, MI, Midland County, MI, Missaukee County, MI, Monroe County, MI, Montcalm County, MI, Montmorency County, MI, Newaygo County, MI, Oakland County, MI, Ogemaw County, MI, Osceola County, MI, Oscoda County, MI, Otsego County, MI, Presque Isle County, MI, Roscommon County, MI, Saginaw County, MI, Saint Clair 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
The radar
The NCL Michigan radar (KAPX), 104 km from the middle of the area, began a volume at 15:10 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
20 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 12:19 PM EDT | Severe Thunderstorm Warning | APX | Otsego | 32 min |
| Jul 18, 12:48 PM EDT | Severe Thunderstorm Warning | APX | Montmorency | 49 min |
| Jul 18, 1:24 PM EDT | Severe Thunderstorm Warning | APX | Alpena, Presque Isle | 62 min |
| Jul 18, 1:29 PM EDT | Severe Thunderstorm Warning | APX | Ogemaw, Oscoda | 61 min |
| Jul 18, 1:29 PM EDT | Severe Thunderstorm Warning | APX | Ogemaw, Oscoda | 61 min |
| Jul 18, 1:52 PM EDT | Severe Thunderstorm Warning | DTX | Midland | 39 min |
| Jul 18, 2:05 PM EDT | Severe Thunderstorm Warning | DTX | Bay | 55 min |
| Jul 18, 2:17 PM EDT | Severe Thunderstorm Warning | DTX | Saginaw | 88 min |
| Jul 18, 2:34 PM EDT | Severe Thunderstorm Warning | GRR | Kalamazoo | 41 min |
| Jul 18, 2:41 PM EDT | Severe Thunderstorm Warning | GRR | Eaton | 36 min |
| Jul 18, 3:05 PM EDT | Severe Thunderstorm Warning | IWX | Saint Joseph | 55 min |
| Jul 18, 3:23 PM EDT | Severe Thunderstorm Warning | DTX | Genesee | 67 min |
| Jul 18, 3:27 PM EDT | Severe Thunderstorm Warning | GRR | Ingham | 37 min |
| Jul 18, 3:28 PM EDT | Severe Thunderstorm Warning | GRR | Calhoun | 31 min |
| Jul 18, 3:35 PM EDT | Severe Thunderstorm Warning | DTX | Tuscola | 50 min |
| Jul 18, 3:39 PM EDT | Severe Thunderstorm Warning | DTX | Huron | 66 min |
| Jul 18, 3:48 PM EDT | Severe Thunderstorm Warning | DTX | Livingston | 34 min |
| Jul 18, 3:52 PM EDT | Severe Thunderstorm Warning | DTX | Shiawassee | 32 min |
| Jul 18, 4:15 PM EDT | Severe Thunderstorm Warning | DTX | Sanilac | 45 min |
| Jul 18, 4:28 PM EDT | Severe Thunderstorm Warning | DTX | Genesee | 17 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, 3.2 hours before the alert went out and 162 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.
- Mixed-layer CAPE
- 1397 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 954 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 10:34 AM EDT | Mesoscale Discussion | SPC | Alcona, Allegan, Alpena, Antrim, Arenac, Barry and 55 more | 116 min |
| Jul 18, 12:29 PM EDT | Mesoscale Discussion | SPC | Berrien | 2 hr |
| Jul 18, 2:17 PM EDT | Mesoscale Discussion | SPC | Alcona, Allegan, Alpena, Arenac, Barry, Bay and 49 more | 118 min |
| Jul 18, 4:24 PM EDT | Mesoscale Discussion | SPC | Alcona, Allegan, Alpena, Arenac, Barry, Bay and 49 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Michigan, 2005Every severe thunderstorm watch in 2005
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.