Alert archive / Indiana / Tornado Warnings in 2021

Tornado Warning 11, NWS Louisville, KY

October 15, 2021Washington County, Indiana

NWS Louisville, KY issued this tornado warning at Oct 15, 2021, 10:15 PM EDT for Washington County, Indiana. It was in force for 15 min. 2 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: Oct 15, 2021, 10:15 PM EDT (02:15 UTC)
Expired: Oct 15, 2021, 10:30 PM EDT
In force: 15 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Washington County, IN

The radar

The Louisville radar (KLVX), 66 km from the middle of the area, began a volume at 02:16 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
Oct 15, 10:15 PM EDT	TORNADO	1 Nw Blue River, IN	VERY BRIEF EF0 TORNADO TOUCHDOWN WITH PEAK WINDS OF 70-75 MPH. ON THE GROUND ONLY FOR 0.1 MILES WITH A WIDTH OF 60-70 YARDS.
Oct 15, 10:16 PM EDT	TSTM WND DMG	1 Nnw Blue River, IN	REPORT OF WIRES AND TREE BRANCHES DOWN ON A HOUSE ALONG THE 8000 BLOCK OF E LAKESIDE DR.

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

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.3 hours before the alert went out and 205 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: 8 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 841 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

321 
WFUS53 KLMK 160215
TORLMK
INC175-160230-
/O.NEW.KLMK.TO.W.0011.211016T0215Z-211016T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Louisville KY
1015 PM EDT Fri Oct 15 2021

The National Weather Service in Louisville has issued a

* Tornado Warning for...
  East central Washington County in south central Indiana...

* Until 1030 PM EDT.
    
* At 1015 PM EDT, a severe thunderstorm capable of producing a
  tornado was located 8 miles east of Salem, moving east at 30 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  east central Washington County, including the following
  locations... South Boston and New Liberty.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3858 8588 3857 8585 3855 8585 3855 8586
      3854 8587 3854 8598 3859 8599 3862 8589
TIME...MOT...LOC 0215Z 258DEG 28KT 3857 8595 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

KDW

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 15, 9:28 PM EDT	Special Weather Statement	LMK	Orange	17 min
Oct 15, 9:44 PM EDT	Special Weather Statement	LMK	Washington	16 min
Oct 15, 10:09 PM EDT	Special Weather Statement	LMK	Scott	21 min
Oct 15, 10:25 PM EDT	Special Weather Statement	LMK	Jefferson	20 min

Nearby

Tornado Warnings in Indiana, 2021 Every tornado warning in 2021 Tornadoes 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.