Alert archive / Indiana / Tornado Warnings in 2024

Tornado Warning 22, NWS Indianapolis, IN

July 9, 2024Knox County, Indiana

NWS Indianapolis, IN issued this tornado warning at Jul 9, 2024, 6:47 PM EDT for Knox County, Indiana. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 9, 2024, 6:47 PM EDT (22:47 UTC)
Expired: Jul 9, 2024, 7:15 PM EDT
In force: 28 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Knox County, IN

The radar

The Evansville,IN radar (KVWX), 31 km from the middle of the area, began a volume at 22:47 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jul 9, 3:07 PM EDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.8 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: 334 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 612 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 17 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

698 
WFUS53 KIND 092247
TORIND
INC083-092315-
/O.NEW.KIND.TO.W.0022.240709T2247Z-240709T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Indianapolis IN
647 PM EDT Tue Jul 9 2024

The National Weather Service in Indianapolis has issued a

* Tornado Warning for...
  Southwestern Knox County in southwestern Indiana...

* Until 715 PM EDT.

* At 646 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Patoka, or near Princeton, moving northeast at 35
  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.

* Locations impacted include...
  Decker.

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3846 8765 3846 8766 3861 8760 3858 8736
      3853 8741 3854 8743 3853 8744 3853 8746
      3850 8749 3850 8753 3852 8754 3851 8755
      3849 8754 3850 8759 3848 8758 3845 8760
      3844 8763 3846 8764 3843 8767
TIME...MOT...LOC 2246Z 211DEG 30KT 3839 8764 

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

$$

ME

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 9, 5:54 PM EDT	Special Weather Statement	IND	Jennings	36 min
Jul 9, 6:05 PM EDT	Special Weather Statement	IND	Jackson	25 min
Jul 9, 6:16 PM EDT	Tornado Warning Tornado observedConsiderable damage threat	IND	Knox	44 min
Jul 9, 6:23 PM EDT	Severe Thunderstorm Warning	IND	Jennings	37 min
Jul 9, 6:24 PM EDT	Special Weather Statement	IND	Daviess	36 min
Jul 9, 6:38 PM EDT	Tornado Warning	IND	Daviess, Martin	37 min
Jul 9, 7:06 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Knox	39 min
Jul 9, 7:10 PM EDT	Severe Thunderstorm Warning	IND	Martin	35 min
Jul 9, 7:13 PM EDT	Special Weather Statement	IND	Lawrence	47 min
Jul 9, 7:17 PM EDT	Tornado Warning Tornado observed	IND	Knox	28 min
Jul 9, 7:18 PM EDT	Severe Thunderstorm Warning	IND	Lawrence	42 min
Jul 9, 7:20 PM EDT	Tornado Warning	IND	Martin	40 min
Jul 9, 7:48 PM EDT	Special Weather Statement	IND	Daviess, Martin	27 min
Jul 9, 7:50 PM EDT	Severe Thunderstorm Warning	IND	Greene, Lawrence, Martin, Monroe, Owen	25 min
Jul 9, 7:55 PM EDT	Special Weather Statement	IND	Monroe	35 min

Nearby

Tornado Warnings in Indiana, 2024 Every tornado warning in 2024 Tornadoes in 2024

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.