Alert archive / Indiana / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 550
The Storm Prediction Center issued this severe thunderstorm watch at Jul 29, 2002, 12:20 PM CDT for 4 counties in Illinois; 41 counties in Indiana. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 29, 2002, 12:20 PM CDT (17:20 UTC)
- Expired
- Jul 29, 2002, 6:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 45 counties
Clark County, IL, Crawford County, IL, Lawrence County, IL, Richland County, IL, Bartholomew County, IN, Boone County, IN, Brown County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Decatur County, IN, Delaware County, IN, Fayette County, IN, Fountain County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Jackson County, IN, Jay County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN, Wayne County, IN
The radar
The Indianapolis radar (KIND), 60 km from the middle of the area, began a volume at 17:22 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
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 1:38 PM CDT | Severe Thunderstorm Warning | IND | Clay, Greene, Owen | 37 min |
| Jul 29, 1:51 PM CDT | Severe Thunderstorm Warning | IND | Hendricks, Morgan, Putnam | 39 min |
| Jul 29, 2:14 PM CDT | Severe Thunderstorm Warning | IND | Hamilton, Marion | 46 min |
| Jul 29, 2:20 PM CDT | Severe Thunderstorm Warning | IND | Boone | 25 min |
| Jul 29, 2:30 PM CDT | Severe Thunderstorm Warning | IND | Madison, Tipton | 60 min |
| Jul 29, 2:40 PM CDT | Severe Thunderstorm Warning | IND | Hancock | 50 min |
| Jul 29, 2:58 PM CDT | Severe Thunderstorm Warning | IND | Delaware | 47 min |
| Jul 29, 3:06 PM CDT | Severe Thunderstorm Warning | IND | Henry, Rush | 54 min |
| Jul 29, 3:17 PM CDT | Severe Thunderstorm Warning | IND | Randolph | 43 min |
| Jul 29, 3:35 PM CDT | Severe Thunderstorm Warning | ILN | Fayette, Wayne | 40 min |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 5.3 hours before the alert went out and 259 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
- 747 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 879 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 12:40 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Allen, Carroll, Cass, DeKalb, Elkhart and 15 more | 5 hr |
| Jul 29, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | Dearborn, Franklin, Ohio, Ripley, Union | 6 hr |
Nearby
Severe Thunderstorm Watches in Indiana, 2002Severe Thunderstorm Watches in Illinois, 2002Every severe thunderstorm watch in 2002
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.