Alert archive / Indiana / Tornado Watches in 2023
Tornado Watch 598
The Storm Prediction Center issued this tornado watch at Aug 6, 2023, 9:37 PM EDT for 31 counties in Indiana; 11 counties in Kentucky. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 6, 2023, 9:37 PM EDT (01:37 UTC)
- Expired
- Aug 7, 2023, 4:48 AM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 55 kt
All 42 counties
Bartholomew County, IN, Brown County, IN, Clark County, IN, Clay County, IN, Crawford County, IN, Daviess County, IN, Decatur County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Greene County, IN, Harrison County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Orange County, IN, Owen County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Scott County, IN, Spencer County, IN, Sullivan County, IN, Vanderburgh County, IN, Vigo County, IN, Warrick County, IN, Washington County, IN, Bullitt County, KY, Daviess County, KY, Henderson County, KY, Henry County, KY, Jefferson County, KY, Meade County, KY, Oldham County, KY, Shelby County, KY, Spencer County, KY, Trimble County, KY, Union County, KY
The radar
The Louisville radar (KLVX), 107 km from the middle of the area, began a volume at 01:39 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 30%
- One or more EF2 to EF5 tornadoes
- 10%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 10:00 PM EDT | Severe Thunderstorm Warning | IND | Knox | 45 min |
| Aug 6, 10:09 PM EDT | Severe Thunderstorm Warning | IND | Greene, Knox | 24 min |
| Aug 6, 10:26 PM EDT | Severe Thunderstorm Warning | IND | Daviess | 34 min |
| Aug 6, 10:44 PM EDT | Severe Thunderstorm Warning | IND | Daviess, Knox, Martin | 61 min |
| Aug 6, 11:32 PM EDT | Flash Flood Warning | IND | Daviess, Knox | 4 hr |
| Aug 6, 11:47 PM EDT | Tornado Warning | IND | Lawrence | 28 min |
| Aug 6, 11:53 PM EDT | Flash Flood Warning | IND | Daviess, Martin | 3 hr |
| Aug 7, 12:07 AM EDT | Severe Thunderstorm Warning | IND | Daviess, Knox, Martin | 53 min |
| Aug 7, 12:12 AM EDT | Severe Thunderstorm Warning | PAH | Gibson | 30 min |
| Aug 7, 12:13 AM EDT | Tornado Warning | IND | Lawrence | 11 min |
| Aug 7, 12:18 AM EDT | Severe Thunderstorm Warning | PAH | Pike | 27 min |
| Aug 7, 12:19 AM EDT | Severe Thunderstorm Warning | LMK | Crawford, Dubois, Orange | 41 min |
| Aug 7, 12:33 AM EDT | Tornado Warning | LMK | Dubois, Orange | 27 min |
| Aug 7, 12:52 AM EDT | Tornado Warning | LMK | Orange, Washington | 23 min |
| Aug 7, 1:01 AM EDT | Severe Thunderstorm Warning | LMK | Clark, Crawford, Floyd, Harrison, Orange, Washington | 29 min |
| Aug 7, 1:13 AM EDT | Severe Thunderstorm Warning | LMK | Clark, Jefferson, Scott, Washington | 47 min |
| Aug 7, 1:30 AM EDT | Severe Thunderstorm Warning | LMK | Clark, Floyd, Harrison | 45 min |
| Aug 7, 1:48 AM EDT | Severe Thunderstorm Warning | PAH | Posey | 42 min |
| Aug 7, 2:20 AM EDT | Severe Thunderstorm Warning | PAH | Posey, Vanderburgh | 40 min |
| Aug 7, 2:54 AM EDT | Severe Thunderstorm Warning | PAH | Spencer | 51 min |
| Aug 7, 3:36 AM EDT | Severe Thunderstorm Warning | LMK | Crawford, Harrison, Washington | 24 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 00:00Z, 1.6 hours before the alert went out and 228 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
- 275 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 871 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 167 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 8:56 PM EDT | Mesoscale Discussion | SPC | Clay, Daviess, Dubois, Greene, Knox, Lawrence and 7 more | 2 hr |
| Aug 7, 12:07 AM EDT | Mesoscale Discussion | SPC | Clark, Crawford, Daviess, Dubois, Floyd, Gibson and 16 more | 113 min |
| Aug 7, 2:15 AM EDT | Mesoscale Discussion | SPC | Clark, Crawford, Dubois, Floyd, Gibson, Harrison and 11 more | 2 hr |
| Aug 7, 8:18 AM EDT | Mesoscale Discussion | SPC | Bell, Floyd, Harlan, Knott, Leslie, Letcher and 3 more | 117 min |
| Aug 7, 10:19 AM EDT | Mesoscale Discussion | SPC | Adair, Anderson, Bath, Bell, Bourbon, Boyd and 62 more | 86 min |
| Aug 7, 10:57 AM EDT | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Bath, Bell and 72 more | 7 hr |
| Aug 7, 1:03 PM EDT | Mesoscale Discussion | SPC | Bath, Bell, Bourbon, Boyd, Boyle, Bracken and 46 more | 87 min |
| Aug 7, 2:53 PM EDT | Mesoscale Discussion | SPC | Boyd, Johnson, Lawrence, Martin, Morgan | 97 min |
Nearby
Tornado Watches in Indiana, 2023Tornado Watches in Kentucky, 2023Every tornado watch in 2023
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.