Alert archive / Indiana / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 91, NWS Indianapolis, IN

May 26, 20176 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 26, 2017, 8:06 PM EDT for 6 counties in Indiana. It was in force for 39 min. 4 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: May 26, 2017, 8:06 PM EDT (00:06 UTC)
Expired: May 26, 2017, 8:45 PM EDT
In force: 39 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Boone County, IN, Clinton County, IN, Hendricks County, IN, Montgomery County, IN, Tippecanoe County, IN, Tipton County, IN

The radar

The Indianapolis radar (KIND), 55 km from the middle of the area, began a volume at 00:06 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.

What was reported inside it

Time	Report	Where	Remark
May 26, 8:08 PM EDT	TSTM WND DMG	Crawfordsville, IN	SEVERAL REPORTS OF TREES OF UP TO 12 INCHES IN DIAMETER WERE DOWNED ACROSS CRAWFORDSVILLE. TIME ESTIMATED FROM RADAR.
May 26, 8:14 PM EDT	TSTM WND DMG	2 Nnw Crawfordsville, IN	TREE LIMBS SNAPPED, SEVERAL LARGE SIGNS BLOWN OVER - INCLUDING A GAS STATION PRICE SIGN, POWER WAS OUT FOR 10 MINUTES.
May 26, 8:46 PM EDT	TSTM WND DMG	2 Nnw Pittsboro, IN	UTILITY POLES LAID DOWN, POWER OUTAGE REPORTS, AND TREES DOWN. TIME RADAR ESTIMATED.
May 26, 8:46 PM EDT	TSTM WND GST 75	2 Ne Pittsboro, IN	AMATEUR RADIO OPERATOR WA9FD0 REPORTED A MEASURED 75 MPH WIND GUST.

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
May 26, 3:45 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.1 hours before the alert went out and 171 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: 884 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 1303 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 156 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 4.9

Open this sounding in Storm Lab

The text

As transmitted.

717 
WUUS53 KIND 270006
SVRIND
INC011-023-063-107-157-159-270045-
/O.NEW.KIND.SV.W.0091.170527T0006Z-170527T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
806 PM EDT FRI MAY 26 2017

The National Weather Service in Indianapolis has issued a

* Severe Thunderstorm Warning for...
  Southeastern Tippecanoe County in west central Indiana...
  Southern Clinton County in central Indiana...
  Northern Hendricks County in central Indiana...
  Boone County in central Indiana...
  Southwestern Tipton County in central Indiana...
  Montgomery County in west central Indiana...

* Until 845 PM EDT.

* At 805 PM EDT, a severe thunderstorm was located 9 miles north of
  Crawfordsville, moving east at 50 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations impacted include...
  Frankfort, Crawfordsville, Brownsburg, Lebanon, Pittsboro,
  Whitestown, Thorntown, Ladoga, Jamestown, Darlington, Kirklin,
  Linden, Colfax, New Market, Clarks Hill, Lizton, Advance, New Ross,
  Kempton and New Richmond.

This includes the following highways...
 Interstate 65 between mile markers 127 and 159.
 Interstate 74 between mile markers 31 and 64.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

A tornado watch remains in effect until 900 PM EDT for central and
west central Indiana.

LAT...LON 4034 8616 4022 8621 4021 8624 4012 8624
      3986 8634 3994 8709 4000 8709 4015 8690
      4013 8700 4024 8703
TIME...MOT...LOC 0005Z 268DEG 44KT 4018 8686 

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

MK

2 follow-up statements

001 
WWUS53 KIND 270020
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
820 PM EDT FRI MAY 26 2017

INC157-270027-
/O.CAN.KIND.SV.W.0091.000000T0000Z-170527T0045Z/
Tippecanoe IN-
820 PM EDT FRI MAY 26 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TIPPECANOE COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 900 PM EDT for central and
west central Indiana.

A severe thunderstorm watch remains in effect until 200 AM EDT for
central Indiana.

LAT...LON 4034 8616 4022 8621 4021 8624 4012 8624
      3992 8632 3992 8633 3986 8634 3994 8709
      3997 8692 4012 8674 4017 8671 4016 8679
      4021 8681 4021 8670 4028 8669
TIME...MOT...LOC 0017Z 268DEG 44KT 4019 8666 

$$

INC011-023-063-107-159-270045-
/O.CON.KIND.SV.W.0091.000000T0000Z-170527T0045Z/
Clinton IN-Hendricks IN-Boone IN-Tipton IN-Montgomery IN-
820 PM EDT FRI MAY 26 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR SOUTHERN CLINTON...NORTHERN HENDRICKS...BOONE...SOUTHWESTERN
TIPTON AND SOUTHEASTERN MONTGOMERY COUNTIES...

At 817 PM EDT, a severe thunderstorm was located 10 miles southwest
of Frankfort, moving east at 50 mph.

HAZARD...70 mph wind gusts. 

SOURCE...Trained weather spotters reported 70 mph winds 4 miles 
         east and northeast of Waynetown at 808 pm EDT. 

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings. 

Locations impacted include...
Frankfort, Brownsburg, Lebanon, Pittsboro, Whitestown, Thorntown,
Ladoga, Jamestown, Kirklin, Colfax, New Market, Lizton, Advance, New
Ross, Kempton and Ulen.

This includes the following highways...
 Interstate 65 between mile markers 128 and 160.
 Interstate 74 between mile markers 39 and 64.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

A tornado watch remains in effect until 900 PM EDT for central and
west central Indiana.

LAT...LON 4034 8616 4022 8621 4021 8624 4012 8624
      3992 8632 3992 8633 3986 8634 3994 8709
      3997 8692 4012 8674 4017 8671 4016 8679
      4021 8681 4021 8670 4028 8669
TIME...MOT...LOC 0017Z 268DEG 44KT 4019 8666 

HAIL...<.75IN
WIND...70MPH
 
$$

MK

824 
WWUS53 KIND 270034
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
834 PM EDT FRI MAY 26 2017

INC107-270044-
/O.CAN.KIND.SV.W.0091.000000T0000Z-170527T0045Z/
Montgomery IN-
834 PM EDT FRI MAY 26 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONTGOMERY COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 900 PM EDT for central
Indiana.

A severe thunderstorm watch remains in effect until 200 AM EDT for
central Indiana.

LAT...LON 4034 8616 4022 8621 4021 8624 4012 8624
      3992 8632 3992 8633 3986 8634 3990 8669
      3993 8669 3995 8667 4002 8661 4019 8652
      4022 8652 4026 8642
TIME...MOT...LOC 0034Z 268DEG 44KT 4020 8638 

$$

INC011-023-063-159-270045-
/O.CON.KIND.SV.W.0091.000000T0000Z-170527T0045Z/
Clinton IN-Hendricks IN-Boone IN-Tipton IN-
834 PM EDT FRI MAY 26 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR SOUTHEASTERN CLINTON...NORTHERN HENDRICKS...BOONE AND
SOUTHWESTERN TIPTON COUNTIES...

At 834 PM EDT, a severe thunderstorm was located 8 miles southeast of
Frankfort, moving east at 50 mph.

HAZARD...70 mph wind gusts. 

SOURCE...Trained weather spotters. 

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings. 

Locations impacted include...
Brownsburg, Lebanon, Pittsboro, Whitestown, Jamestown, Kirklin,
Lizton, Advance, Kempton and Ulen.

This includes the following highways...
 Interstate 65 between mile markers 128 and 148.
 Interstate 74 between mile markers 50 and 64.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

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

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

A tornado watch remains in effect until 900 PM EDT for central
Indiana.

LAT...LON 4034 8616 4022 8621 4021 8624 4012 8624
      3992 8632 3992 8633 3986 8634 3990 8669
      3993 8669 3995 8667 4002 8661 4019 8652
      4022 8652 4026 8642
TIME...MOT...LOC 0034Z 268DEG 44KT 4020 8638 

HAIL...<.75IN
WIND...70MPH
 
$$

MK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 8:22 PM EDT	Areal Flood Warning	IND	Fountain, Montgomery, Tippecanoe, Warren	3 hr
May 26, 8:38 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Marion	37 min
May 26, 8:57 PM EDT	Severe Thunderstorm Warning	IND	Hamilton, Hancock, Madison, Marion	33 min
May 26, 9:35 PM EDT	Special Weather Statement	IND	Henry	40 min
May 26, 9:37 PM EDT	Special Weather Statement	IND	Carroll	38 min
May 26, 10:38 PM EDT	River Flood Warning	IND	Hamilton, Marion	71 hr
May 26, 10:38 PM EDT	River Flood Warning	IND	Marion, Morgan	3 days

Nearby

Severe Thunderstorm Warnings in Indiana, 2017 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.