Alert archive / Indiana / Tornado Warnings in 2020

Tornado Warning 1, NWS Indianapolis, IN

April 8, 20204 counties in Indiana

NWS Indianapolis, IN issued this tornado warning at Apr 8, 2020, 8:46 PM EDT for 4 counties in Indiana. It was in force for 29 min. 9 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: Apr 8, 2020, 8:46 PM EDT (00:46 UTC)
Expired: Apr 8, 2020, 9:15 PM EDT
In force: 29 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Johnson County, IN, Marion County, IN, Morgan County, IN, Shelby County, IN

The radar

The Indianapolis radar (KIND), 24 km from the middle of the area, began a volume at 00:47 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.

What was reported inside it

Time	Report	Where	Remark
Apr 8, 8:47 PM EDT	TSTM WND DMG	Mooresville, IN	DAMAGE TO SEVERAL STRUCTURES IN DOWNTOWN MOORSEVILLE. DAMAGE SEVERE ENOUGH THAT BUILDINGS MAY NEED TO BE TORN DOWN. TIME ESTIMATED FROM RADAR.
Apr 8, 8:52 PM EDT	TSTM WND DMG	1 Ssw Franklin, IN	ROOF OFF OF BUILDING AT 90 EAST JEFFERSON. PARTIAL COLLAPSE OF HOMES AT 1001 N HOME AVE. DAMAGE TO STEEPLE AND CHURCH AT 100 E MADISON. TREES AND POWER LINES DOWN THROUGH THE COUNTY. BARN FIRE DUE TO LIGHTNING TRANSFORMERS BLOWN TIME ESTIMATED FROM RADAR.
Apr 8, 8:57 PM EDT	TSTM WND DMG	4 Wsw Greenwood, IN	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 4 WSW GREENWOOD. PART OF ROOF BLOWN OFF NEAR CR850 N AND SOUTH PADDOCK RD.
Apr 8, 8:57 PM EDT	TSTM WND DMG	5 W Greenwood, IN	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 5 W GREENWOOD. REPORT FROM MPING: 1-INCH TREE LIMBS BROKEN; SHINGLES BLOWN OFF.
Apr 8, 9:05 PM EDT	TSTM WND DMG	1 S Franklin, IN	TWITTER PICTURE OF ROOF DAMAGE TO JEFFERSON ST PUB.
Apr 8, 9:11 PM EDT	TSTM WND DMG	1 Sw Southport, IN	REPORT FROM MPING: 1-INCH TREE LIMBS BROKEN; SHINGLES BLOWN OFF.
Apr 8, 9:15 PM EDT	TSTM WND DMG	2 N Bargersville, IN	REPORT FROM MPING: 1-INCH TREE LIMBS BROKEN; SHINGLES BLOWN OFF.
Apr 8, 9:16 PM EDT	TSTM WND GST 65	Edinburgh, IN
Apr 8, 9:25 PM EDT	TSTM WND DMG	4 Wsw Greenwood, IN	PART OF ROOF BLOWN OFF NEAR CR850 N AND SOUTH PADDOCK RD.

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
Apr 8, 7:24 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.8 hours before the alert went out and 203 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2413 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 295 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

922 
WFUS53 KIND 090046
TORIND
INC081-097-109-145-090115-
/O.NEW.KIND.TO.W.0001.200409T0046Z-200409T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Indianapolis IN
846 PM EDT Wed Apr 8 2020

The National Weather Service in Indianapolis has issued a

* Tornado Warning for...
  West central Shelby County in central Indiana...
  Northeastern Morgan County in central Indiana...
  Johnson County in central Indiana...
  Southwestern Marion County in central Indiana...

* Until 915 PM EDT.
    
* At 846 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Mooresville, or 15 miles southwest of
  Indianapolis, moving southeast at 55 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 dangerous storm will be near...
  Bargersville around 855 PM EDT.
  Franklin, New Whiteland, Whiteland and Trafalgar around 900 PM 
  EDT.
  Edinburgh and Boggstown around 910 PM EDT.

This includes the following highways...
 Interstate 65 between mile markers 82 and 100.
 Interstate 70 near mile marker 69.

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 3935 8596 3934 8609 3954 8645 3963 8639
      3963 8633 3969 8633 3957 8582
TIME...MOT...LOC 0046Z 293DEG 49KT 3959 8631 

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

$$

CP

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 8:18 PM EDT	Severe Thunderstorm Warning	IND	Clay, Greene, Morgan, Owen, Parke, Putnam and 1 more	42 min
Apr 8, 8:24 PM EDT	Severe Thunderstorm Warning	IND	Clay, Daviess, Greene, Knox, Martin, Sullivan and 1 more	36 min
Apr 8, 8:27 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Boone, Hancock, Hendricks, Johnson, Marion and 4 more	48 min
Apr 8, 8:47 PM EDT	Tornado Warning	IND	Brown, Johnson, Morgan	28 min
Apr 8, 8:54 PM EDT	Severe Thunderstorm Warning	IND	Hamilton, Hancock, Henry, Madison, Marion, Rush and 1 more	51 min
Apr 8, 8:59 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Daviess, Greene, Jackson, Knox and 5 more	46 min
Apr 8, 9:06 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Decatur, Jennings, Johnson, Rush and 1 more	54 min
Apr 8, 9:07 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Madison, Randolph	43 min
Apr 8, 9:36 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Jackson, Jennings, Lawrence	39 min
Apr 9, 9:12 AM EDT	Wind Advisory	IND	Boone, Carroll, Clinton, Delaware, Fountain, Hamilton and 14 more	11 hr
Apr 9, 1:26 PM EDT	Freeze Warning	IND	Bartholomew, Boone, Brown, Carroll, Clay, Clinton and 33 more	20 hr

Nearby

Tornado Warnings in Indiana, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.