Alert archive / Indiana / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 636
The Storm Prediction Center issued this severe thunderstorm watch at Jul 4, 2003, 2:20 PM CDT for 27 counties in Illinois; 42 counties in Indiana. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 4, 2003, 2:20 PM CDT (19:20 UTC)
- Expired
- Jul 4, 2003, 8:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 69 counties
Bureau County, IL, Champaign County, IL, DeWitt County, IL, Ford County, IL, Fulton County, IL, Grundy County, IL, Henry County, IL, Iroquois County, IL, Kankakee County, IL, LaSalle County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Marshall County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Morgan County, IL, Peoria County, IL, Piatt County, IL, Putnam County, IL, Sangamon County, IL, Stark County, IL, Tazewell County, IL, Vermilion County, IL, Will County, IL, Woodford County, IL, Adams County, IN, Allen County, IN, Benton County, IN, Blackford County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clinton County, IN, DeKalb County, IN, Delaware County, IN, Elkhart County, IN, Fountain County, IN, Fulton County, IN, Grant County, IN, Hamilton County, IN, Howard County, IN, Huntington County, IN, Jasper County, IN, Jay County, IN, Kosciusko County, IN, LaGrange County, IN, Lake County, IN, LaPorte County, IN, Madison County, IN, Marshall County, IN, Miami County, IN, Montgomery County, IN, Newton County, IN, Noble County, IN, Porter County, IN, Pulaski County, IN, Randolph County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Tippecanoe County, IN, Tipton County, IN, Wabash County, IN, Warren County, IN, Wells County, IN, White County, IN, Whitley County, IN
The radar
The Chicago radar (KLOT), 82 km from the middle of the area, began a volume at 19:21 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
34 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 3:24 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 51 min |
| Jul 4, 3:34 PM CDT | Severe Thunderstorm Warning | IWX | Fulton | 41 min |
| Jul 4, 3:50 PM CDT | Severe Thunderstorm Warning | IWX | Pulaski, Starke | 70 min |
| Jul 4, 3:52 PM CDT | Severe Thunderstorm Warning | IWX | Allen | 38 min |
| Jul 4, 3:58 PM CDT | Severe Thunderstorm Warning | IWX | Kosciusko | 77 min |
| Jul 4, 4:05 PM CDT | Severe Thunderstorm Warning | IWX | Marshall | 70 min |
| Jul 4, 4:12 PM CDT | Severe Thunderstorm Warning | IWX | White | 78 min |
| Jul 4, 4:16 PM CDT | Severe Thunderstorm Warning | IWX | Fulton | 74 min |
| Jul 4, 4:21 PM CDT | Severe Thunderstorm Warning | IWX | Huntington | 39 min |
| Jul 4, 4:21 PM CDT | Severe Thunderstorm Warning | IWX | Miami | 69 min |
| Jul 4, 4:27 PM CDT | Severe Thunderstorm Warning | IWX | Whitley | 63 min |
| Jul 4, 4:29 PM CDT | Severe Thunderstorm Warning | IWX | Allen | 46 min |
| Jul 4, 4:29 PM CDT | Severe Thunderstorm Warning | IWX | Wabash | 76 min |
| Jul 4, 4:31 PM CDT | Severe Thunderstorm Warning | IWX | Noble | 59 min |
| Jul 4, 4:40 PM CDT | Severe Thunderstorm Warning | IWX | Cass | 80 min |
| Jul 4, 4:44 PM CDT | Severe Thunderstorm Warning | IWX | Wells | 61 min |
| Jul 4, 4:59 PM CDT | Severe Thunderstorm Warning | IWX | Adams | 61 min |
| Jul 4, 5:00 PM CDT | Severe Thunderstorm Warning | IWX | Blackford | 75 min |
| Jul 4, 5:07 PM CDT | Tornado Warning | IWX | Miami | 38 min |
| Jul 4, 5:10 PM CDT | Tornado Warning | IWX | Wabash | 50 min |
| Jul 4, 5:15 PM CDT | Severe Thunderstorm Warning | IND | Montgomery | 45 min |
| Jul 4, 5:16 PM CDT | Severe Thunderstorm Warning | IWX | Kosciusko | 44 min |
| Jul 4, 5:23 PM CDT | Severe Thunderstorm Warning | IND | Howard | 52 min |
| Jul 4, 5:25 PM CDT | Severe Thunderstorm Warning | IWX | Steuben | 35 min |
| Jul 4, 5:32 PM CDT | Severe Thunderstorm Warning | IND | Boone | 43 min |
| Jul 4, 5:39 PM CDT | Severe Thunderstorm Warning | IWX | Miami | 51 min |
| Jul 4, 5:48 PM CDT | Tornado Warning | IWX | Wells | 27 min |
| Jul 4, 5:56 PM CDT | Tornado Warning | IND | Boone, Madison | 49 min |
| Jul 4, 5:59 PM CDT | Tornado Warning | IWX | Adams | 31 min |
| Jul 4, 6:01 PM CDT | Severe Thunderstorm Warning | IWX | Grant | 44 min |
| Jul 4, 6:03 PM CDT | Tornado Warning | IND | Boone | 42 min |
| Jul 4, 6:07 PM CDT | Severe Thunderstorm Warning | IND | Delaware, Hamilton, Madison, Tipton | 53 min |
| Jul 4, 6:15 PM CDT | Severe Thunderstorm Warning | IWX | Jay | 60 min |
| Jul 4, 6:44 PM CDT | Severe Thunderstorm Warning | IND | Randolph | 46 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
Lincoln, IL (KILX), launched 12:00Z, 7.3 hours before the alert went out and 93 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
- 1934 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1197 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 114 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 4, 1:15 AM CDT | Severe Thunderstorm Watch | SPC | Carroll, Jo Daviess, Lee, Ogle, Rock Island, Stephenson and 2 more | 6 hr |
| Jul 4, 3:27 AM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Grundy and 12 more | 93 min |
| Jul 4, 5:20 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Kane, Lake and 1 more | 4 hr |
| Jul 4, 7:25 AM CDT | Mesoscale Discussion | SPC | Cook, Lake, McHenry | 95 min |
| Jul 4, 12:48 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 26 more | 117 min |
| Jul 4, 3:29 PM CDT | Mesoscale Discussion | SPC | Champaign, DeWitt, Douglas, Ford, Iroquois, Kankakee and 4 more | 2 hr |
| Jul 4, 5:07 PM CDT | Mesoscale Discussion | SPC | Bond, Clark, Clay, Clinton, Coles, Crawford and 27 more | 53 min |
| Jul 4, 6:29 PM CDT | Mesoscale Discussion | SPC | Bureau, Champaign, Clark, Coles, DeWitt, Douglas and 29 more | 61 min |
| Jul 4, 7:50 AM CDT | Severe Thunderstorm Watch | SPC | Elkhart, LaGrange, LaPorte, Saint Joseph, Steuben | 3 hr |
| Jul 4, 9:28 AM CDT | Mesoscale Discussion | SPC | DeKalb, Elkhart, Kosciusko, LaGrange, Noble, Steuben | 2 hr |
| Jul 4, 12:04 PM CDT | Mesoscale Discussion | SPC | Allen, DeKalb, Elkhart, Kosciusko, LaGrange, LaPorte and 7 more | 116 min |
| Jul 4, 1:45 PM CDT | Mesoscale Discussion | SPC | Adams, Allen, DeKalb, Whitley | 60 min |
| Jul 4, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | Bartholomew, Brown, Clay, Daviess, Dearborn, Decatur and 29 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Indiana, 2003Severe Thunderstorm Watches in Illinois, 2003Every severe thunderstorm watch in 2003
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.