Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 33, NWS Wilmington, OH

June 18, 2021Dearborn County, Franklin County, Ripley County, Indiana

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 18, 2021, 8:44 PM EDT for Dearborn County, Franklin County, Ripley County, Indiana. It was in force for 46 min. 8 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 18, 2021, 8:44 PM EDT (00:44 UTC)
Expired: Jun 18, 2021, 9:30 PM EDT
In force: 46 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Dearborn County, IN, Franklin County, IN, Ripley County, IN

The radar

The Indianapolis radar (KIND), 101 km from the middle of the area, began a volume at 00:45 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 was reported inside it

Time	Report	Where	Remark
Jun 18, 8:45 PM EDT	TSTM WND DMG	5 Se Sunman, IN	TREES AND POWER LINES WERE BLOWN DOWN ACROSS THE COUNTY. A HOUSE WAS STRUCK BY LIGHTNING AT HIDDEN VALLEY LAKE.
Jun 18, 8:47 PM EDT	TSTM WND DMG	4 Ne Osgood, IN	TREE REPORTED INTO A HOUSE. NO INJURIES. TIME ESTIMATED FROM RADAR.
Jun 18, 8:47 PM EDT	TSTM WND GST 58	Batesville, IN
Jun 18, 8:51 PM EDT	TORNADO 1	5 Nw Milan, IN	NWS STORM SURVEY CONFIRMS AN EF-1 TORNADO WITH A PATH LENGTH OF 6.2 MILES.
Jun 18, 8:55 PM EDT	TSTM WND DMG	Milan, IN	ROOF REPORTED OFF A HOME. A TREE KNOCKED DOWN INTO A HOUSE. BARN DAMAGE REPORTED. TIME ESTIMATED FROM RADAR.
Jun 18, 8:56 PM EDT	TSTM WND DMG	Versailles, IN	MANY DOWNED TREES AND POWER LINES ACROSS ROADWAYS COUNTY WIDE. TIME ESTIMED FROM RADAR FOR VERSAILLES.
Jun 18, 8:58 PM EDT	TSTM WND DMG	2 Nw Milan, IN	EXTENSIVE AND CONSIDERABLE TREE DAMAGE AT MULTIPLE PROPERTIES NEAR THE INTERSECTION OF EAST COUNTY RD. 475 N AND NORTH COUNTY RD 850 E. TIME ESTIMATED BY RADAR.
Jun 18, 9:01 PM EDT	TORNADO 1	3 N Dillsboro, IN	NWS STORM SURVEY CONFIRMS AN EF-1 TORNADO WITH A PATH LENGTH OF ONE-HALF MILE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 18, 4:02 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.7 hours before the alert went out and 127 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2257 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 1236 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 214 m²/s²
0-3 km storm-relative helicity: 240 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 17.6

Open this sounding in Storm Lab

The text

As transmitted.

122 
WUUS51 KILN 190044
SVRILN
INC029-047-137-190130-
/O.NEW.KILN.SV.W.0033.210619T0044Z-210619T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington OH
844 PM EDT Fri Jun 18 2021

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Franklin County in southeastern Indiana...
  Ripley County in southeastern Indiana...
  Northwestern Dearborn County in southeastern Indiana...

* Until 930 PM EDT.

* At 844 PM EDT, severe thunderstorms were located along a line
  extending from near Lake Santee to 7 miles northwest of Osgood,
  moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  Batesville, Brookville, Versailles, Milan, Osgood, Oldenburg,
  Moores Hill, Lake Santee, Manchester, Blooming Grove, Sunman,
  Metamora, St. Leon, Laurel, Holton, Napoleon, Cedar Grove,
  Millhousen, Mounds State Recreation Area and Huntersville.

This includes I-74 in Indiana between mile markers 145 and 164.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

A Tornado Watch remains in effect until 1100 PM EDT for southeastern
and east central Indiana.

LAT...LON 3920 8544 3927 8530 3953 8530 3952 8487
      3903 8501 3903 8544
TIME...MOT...LOC 0044Z 272DEG 33KT 3947 8534 3918 8542 

HAIL...<.75IN
WIND...60MPH
 
$$

Franks

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 18, 8:10 PM EDT	Severe Thunderstorm Warning	ILN	Dearborn, Franklin, Ripley	50 min
Jun 18, 8:14 PM EDT	Severe Thunderstorm Warning	ILN	Union, Wayne	31 min
Jun 18, 8:56 PM EDT	Severe Thunderstorm Warning	ILN	Dearborn, Ohio, Ripley, Switzerland	34 min
Jun 18, 9:00 PM EDT	Flash Flood Warning	ILN	Dearborn, Franklin, Ripley	3 hr
Jun 18, 9:02 PM EDT	Tornado Warning	ILN	Dearborn, Ohio, Ripley	28 min
Jun 18, 9:11 PM EDT	Tornado Warning	ILN	Dearborn, Ohio	34 min
Jun 18, 9:30 PM EDT	Severe Thunderstorm Warning	ILN	Ohio, Switzerland	15 min
Jun 18, 9:39 PM EDT	Areal Flood Advisory	ILN	Dearborn, Ohio	3 hr
Jun 18, 11:59 PM EDT	Areal Flood Advisory	ILN	Switzerland	3 hr
Jun 19, 12:01 AM EDT	Severe Thunderstorm Warning	ILN	Wayne	27 min
Jun 19, 1:12 AM EDT	Areal Flood Advisory	ILN	Wayne	2 hr
Jun 19, 1:28 AM EDT	Flash Flood Warning	ILN	Switzerland	4 hr
Jun 19, 3:44 AM EDT	Areal Flood Advisory	ILN	Dearborn, Franklin, Ripley, Switzerland	3 hr
Jun 19, 4:40 AM EDT	Areal Flood Advisory	ILN	Ohio, Switzerland	5 hr
Jun 19, 6:39 AM EDT	Areal Flood Advisory	ILN	Dearborn, Franklin, Ripley	19 min
Jun 19, 6:54 AM EDT	Flash Flood Warning	ILN	Dearborn, Franklin, Ohio, Ripley, Switzerland	13 hr
Jun 19, 8:11 AM EDT	Special Weather Statement	ILN	Ohio, Switzerland	34 min
Jun 19, 10:02 AM EDT	Areal Flood Warning	ILN	Ohio, Switzerland	6 hr
Jun 19, 1:18 PM EDT	River Flood Advisory	ILN	Dearborn, Franklin	9 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2021 Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.