Alert archive / Indiana / Tornado Watches in 1998
Tornado Watch 175
The Storm Prediction Center issued this tornado watch at Apr 7, 1998, 7:00 PM CDT for 33 counties in Illinois; 50 counties in Indiana; Boone County, Kentucky. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 7, 1998, 7:00 PM CDT (00:00 UTC)
- Expired
- Apr 8, 1998, 1:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 84 counties
Bureau County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Coles County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Ford County, IL, Fulton County, IL, Henry County, IL, Iroquois County, IL, Kankakee County, IL, Knox 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, Moultrie County, IL, Peoria County, IL, Piatt County, IL, Putnam County, IL, Sangamon County, IL, Stark County, IL, Tazewell County, IL, Vermilion County, IL, Woodford County, IL, Bartholomew County, IN, Benton County, IN, Blackford County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, Dearborn County, IN, Decatur County, IN, Delaware County, IN, Fayette County, IN, Fountain County, IN, Franklin County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Jasper County, IN, Jay County, IN, Jennings County, IN, Johnson County, IN, Madison County, IN, Marion County, IN, Miami County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Newton County, IN, Ohio County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Shelby County, IN, Tippecanoe County, IN, Tipton County, IN, Union County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Warren County, IN, Wayne County, IN, Wells County, IN, White County, IN, Boone County, KY
The radar
The Lincoln radar (KILX), 107 km from the middle of the area, began a volume at 00:05 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
29 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 7:01 PM CDT | Tornado Warning | ILX | Vermilion | 59 min |
| Apr 7, 7:03 PM CDT | Tornado Warning | ILX | Coles, Douglas | 57 min |
| Apr 7, 7:13 PM CDT | Tornado Warning | ILX | Peoria, Tazewell | 62 min |
| Apr 7, 7:14 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 61 min |
| Apr 7, 7:23 PM CDT | Tornado Warning | ILX | Woodford | 67 min |
| Apr 7, 7:28 PM CDT | Tornado Warning | ILX | DeWitt, McLean | 62 min |
| Apr 7, 7:33 PM CDT | Tornado Warning | IND | Hendricks, Marion | 42 min |
| Apr 7, 7:39 PM CDT | Tornado Warning | ILX | Edgar | 51 min |
| Apr 7, 8:00 PM CDT | Tornado Warning | ILX | Douglas | 45 min |
| Apr 7, 8:10 PM CDT | Tornado Warning | ILX | Vermilion | 50 min |
| Apr 7, 8:12 PM CDT | Severe Thunderstorm Warning | IND | Marion | 33 min |
| Apr 7, 8:16 PM CDT | Tornado Warning | IND | Parke, Vermillion | 59 min |
| Apr 7, 8:24 PM CDT | Tornado Warning | ILX | DeWitt, McLean | 66 min |
| Apr 7, 8:28 PM CDT | Tornado Warning | ILX | Edgar | 62 min |
| Apr 7, 8:32 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Livingston | 58 min |
| Apr 7, 8:34 PM CDT | Severe Thunderstorm Warning | IND | Hamilton, Hancock, Madison | 26 min |
| Apr 7, 9:08 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Piatt | 52 min |
| Apr 7, 9:10 PM CDT | Tornado Warning | IND | Fountain, Parke | 50 min |
| Apr 7, 9:13 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 62 min |
| Apr 7, 9:26 PM CDT | Tornado Warning | IND | Montgomery | 49 min |
| Apr 7, 9:48 PM CDT | Tornado Warning | ILX | Champaign, Douglas | 42 min |
| Apr 7, 10:02 PM CDT | Tornado Warning | IND | Boone | 58 min |
| Apr 7, 10:07 PM CDT | Tornado Warning | ILX | Clark | 53 min |
| Apr 7, 10:14 PM CDT | Tornado Warning | IND | Montgomery | 46 min |
| Apr 8, 12:01 AM CDT | Severe Thunderstorm Warning | ILN | Ripley | 49 min |
| Apr 8, 12:11 AM CDT | Severe Thunderstorm Warning | IND | Marion | 34 min |
| Apr 8, 12:18 AM CDT | Severe Thunderstorm Warning | IND | Johnson | 27 min |
| Apr 8, 12:39 AM CDT | Severe Thunderstorm Warning | ILN | Dearborn, Ohio | 61 min |
| Apr 8, 12:53 AM CDT | Severe Thunderstorm Warning | IWX | Wells | 32 min |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.0 hours before the alert went out and 53 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
- 756 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 671 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.3
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 10:00 PM CDT | Tornado Watch | SPC | Clay, Crawford, Cumberland, Edwards, Effingham, Franklin and 12 more | 6 hr |
| Apr 8, 5:30 PM CDT | Tornado Watch | SPC | Gallatin, Hardin, Massac, Pope, Saline | 7 hr |
| Apr 8, 1:00 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Bartholomew, Blackford, Brown, Dearborn, Decatur and 24 more | 4 hr |
| Apr 8, 2:00 AM CDT | Tornado Watch | SPC | Clark, Jefferson, Switzerland | 6 hr |
| Apr 8, 12:15 PM CDT | Tornado Watch | SPC | Clark, Crawford, Dearborn, Decatur, Fayette, Floyd and 12 more | 6 hr |
| Apr 8, 5:00 AM CDT | Severe Thunderstorm Watch | SPC | Bell, Breathitt, Clay, Estill, Floyd, Harlan and 12 more | 5 hr |
Nearby
Tornado Watches in Indiana, 1998Tornado Watches in Illinois, 1998Tornado Watches in Kentucky, 1998Every tornado watch in 1998
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.