Alert archive / Ohio / Tornado Watches in 2019

Tornado Watch 363

June 15, 20198 counties in Indiana; Boone County, Campbell County, Kenton County, Kentucky; 10 counties in Ohio

The Storm Prediction Center issued this tornado watch at Jun 15, 2019, 8:40 PM EDT for 8 counties in Indiana; Boone County, Campbell County, Kenton County, Kentucky; 10 counties in Ohio. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Jun 15, 2019, 8:40 PM EDT (00:40 UTC)
Expired
Jun 16, 2019, 12:42 AM EDT
In force
4 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 21 counties

Dearborn County, IN, Fayette County, IN, Franklin County, IN, Ohio County, IN, Ripley County, IN, Switzerland County, IN, Union County, IN, Wayne County, IN, Boone County, KY, Campbell County, KY, Kenton County, KY, Brown County, OH, Butler County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Fayette County, OH, Hamilton County, OH, Highland County, OH, Preble County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 94 km from the middle of the area, began a volume at 00:41 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
40%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
20%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 15, 8:41 PM EDTSevere Thunderstorm WarningILNWayne34 min
Jun 15, 9:03 PM EDTTornado WarningILNFayette, Wayne27 min
Jun 15, 9:04 PM EDTSevere Thunderstorm WarningILNFranklin, Ripley26 min
Jun 15, 9:30 PM EDTSevere Thunderstorm WarningILNRipley45 min
Jun 15, 9:43 PM EDTSevere Thunderstorm WarningILNUnion, Wayne32 min
Jun 15, 10:54 PM EDTTornado WarningILNButler, Warren21 min
Jun 15, 11:15 PM EDTSevere Thunderstorm WarningILNHamilton30 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.7 hours before the alert went out and 95 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.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2019-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 172 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2019-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 290 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
172 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1021 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
290 m²/s²
0-3 km storm-relative helicity
374 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 15, 10:12 PM EDTMesoscale DiscussionSPCDearborn, Franklin, Ripley, Union63 min
Jun 16, 2:14 AM EDTMesoscale DiscussionSPCBoone, Carroll, Cass, Clay, Clinton, Fountain and 21 more61 min
Jun 16, 2:46 PM EDTMesoscale DiscussionSPCBartholomew, Brown, Clark, Crawford, Daviess, Dearborn and 26 more59 min
Jun 16, 3:08 PM EDTSevere Thunderstorm WatchSPCClark, Crawford, Daviess, Dearborn, Dubois, Floyd and 20 more8 hr
Jun 16, 4:42 PM EDTMesoscale DiscussionSPCClark, Crawford, Daviess, Dearborn, Dubois, Floyd and 21 more93 min
Jun 16, 7:01 PM EDTMesoscale DiscussionSPCBath, Bourbon, Boyd, Breathitt, Carter, Clark and 32 more59 min
Jun 16, 7:26 PM EDTSevere Thunderstorm WatchSPCBoyd, Carter, Floyd, Greenup, Knott, Lawrence and 4 more4 hr

Nearby

Tornado Watches in Ohio, 2019Tornado Watches in Indiana, 2019Tornado Watches in Kentucky, 2019Every tornado watch in 2019

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.