Alert archive / Indiana / Tornado Warnings in 2017

Tornado Warning 16, NWS Indianapolis, IN

May 20, 2017Howard County, Indiana

NWS Indianapolis, IN issued this tornado warning at May 20, 2017, 9:02 PM EDT for Howard 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: May 20, 2017, 9:02 PM EDT (01:02 UTC)
Expired: May 20, 2017, 9:30 PM EDT
In force: 28 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Howard County, IN

The radar

The Indianapolis radar (KIND), 88 km from the middle of the area, began a volume at 01:06 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 nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.0 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: 1283 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

897 
WFUS53 KIND 210102
TORIND
INC067-210130-
/O.NEW.KIND.TO.W.0016.170521T0102Z-170521T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Indianapolis IN
902 PM EDT SAT MAY 20 2017

The National Weather Service in Indianapolis has issued a

* Tornado Warning for...
  Northwestern Howard County in central Indiana...

* Until 930 PM EDT

* At 902 PM EDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles west of Kokomo, moving northeast at 15 mph.

  HAZARD...Tornado. 

  SOURCE...Weather spotters reported funnel cloud. 

  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
  northwestern Howard County.

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 4045 8627 4047 8634 4056 8626 4056 8609
TIME...MOT...LOC 0102Z 224DEG 12KT 4048 8627 

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

$$

PUMA

2 follow-up statements

752 
WWUS53 KIND 210108
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
908 PM EDT SAT MAY 20 2017

INC067-210130-
/O.CON.KIND.TO.W.0016.000000T0000Z-170521T0130Z/
Howard IN-
908 PM EDT SAT MAY 20 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM EDT FOR
NORTHWESTERN HOWARD COUNTY...
    
At 908 PM EDT, a severe thunderstorm capable of producing a tornado
was located 7 miles west of Kokomo, moving northeast at 15 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
northwestern Howard County.

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 4049 8626 4050 8631 4056 8626 4056 8613
TIME...MOT...LOC 0108Z 224DEG 14KT 4051 8627 

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

$$

PUMA

640 
WWUS53 KIND 210124
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
924 PM EDT SAT MAY 20 2017

INC067-210131-
/O.EXP.KIND.TO.W.0016.000000T0000Z-170521T0130Z/
Howard IN-
924 PM EDT SAT MAY 20 2017

...THE TORNADO WARNING FOR NORTHWESTERN HOWARD COUNTY WILL EXPIRE AT
930 PM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 4049 8626 4050 8631 4056 8626 4056 8613
TIME...MOT...LOC 0121Z 228DEG 15KT 4056 8619 

$$

PUMA

The office that day

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

Issued	Product	Office	Counties	Lasted
May 20, 8:34 PM EDT	Tornado Warning Tornado observed	IND	Clinton, Howard	26 min
May 20, 10:25 PM EDT	Flash Flood Warning	IND	Howard	5 hr
May 20, 11:09 PM EDT	River Flood Warning	IND	Tippecanoe	61 hr
May 21, 11:10 AM EDT	River Flood Warning	IND	Clinton, Tippecanoe	24 hr

Nearby

Tornado Warnings in Indiana, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.