Alert archive / Indiana / Special Weather Statements in 2017

Special Weather Statement, NWS Indianapolis, IN

July 23, 2017Hendricks County, Indiana

NWS Indianapolis, IN issued this special weather statement at Jul 23, 2017, 2:36 PM EDT for Hendricks County, Indiana. It was in force for 24 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 23, 2017, 2:36 PM EDT (18:36 UTC)
Expired: Jul 23, 2017, 3:00 PM EDT
In force: 24 min
Issued by: NWS Indianapolis, IN

County Hendricks County, IN

The radar

The Indianapolis radar (KIND), 31 km from the middle of the area, began a volume at 18:40 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 12:00Z, 6.6 hours before the alert went out and 176 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: 2427 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 562 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Indianapolis, IN wrote its last area forecast discussion before this special weather statement went out at Jul 23, 2:28 PM EDT, 8 minutes earlier.

Area forecast discussion, Jul 23, 2:28 PM EDT, 8 minutes before

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Hazardous weather outlook, Jul 23, 12:58 PM EDT, 1 hour 38 minutes before

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In the hours before

Local storm report, Jul 23, 11:36 AM EDT, 3 hours before

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Special weather statement, Jul 23, 1:04 PM EDT, 1 hour 32 minutes before

Special Weather Statement
National Weather Service Indianapolis IN
104 PM EDT SUN JUL 23 2017

INZ029-030-231745-
Clinton IN-Tippecanoe IN-
104 PM EDT SUN JUL 23 2017

...SIGNIFICANT WEATHER ADVISORY FOR TIPPECANOE AND WEST CENTRAL
CLINTON COUNTIES UNTIL 145 PM EDT...

At 104 PM EDT, Doppler radar was tracking a strong thunderstorm near
Otterbein, moving southeast at 30 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Lafayette, West Lafayette, Shadeland, Dayton, Battle Ground, Mulberry
and Purdue University.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4056 8690 4036 8658 4021 8695 4021 8696
      4038 8709 4053 8709 4056 8703
TIME...MOT...LOC 1704Z 320DEG 25KT 4048 8700

AW/JH

Local storm report, Jul 23, 1:10 PM EDT, 1 hour 26 minutes before

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Special weather statement, Jul 23, 2:36 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Indianapolis IN
236 PM EDT SUN JUL 23 2017

INZ036-037-046-231900-
Montgomery IN-Hendricks IN-Boone IN-
236 PM EDT SUN JUL 23 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN HENDRICKS...SOUTHWESTERN
BOONE AND SOUTHEASTERN MONTGOMERY COUNTIES UNTIL 300 PM EDT...

At 236 PM EDT, Doppler radar was tracking a strong thunderstorm 11
miles southwest of Lebanon, or 14 miles southeast of Crawfordsville,
moving southeast at 25 mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Brownsburg, Danville, Pittsboro, Jamestown, North Salem, Lizton,
Advance and New Ross.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3991 8633 3988 8633 3972 8652 3985 8669
      3986 8669 3987 8671 3994 8680 4008 8664
TIME...MOT...LOC 1836Z 312DEG 23KT 3995 8664

AW/JH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 8:03 PM EDT	Special Weather Statement	IND	Monroe, Owen	42 min
Jul 22, 8:25 PM EDT	Severe Thunderstorm Warning	IND	Clay, Greene, Sullivan, Vigo	21 min
Jul 22, 11:25 PM EDT	Areal Flood Warning	IND	Clay, Greene, Owen, Sullivan, Vigo	3 hr
Jul 22, 11:40 PM EDT	Special Weather Statement	IND	Clay, Greene, Owen, Sullivan	50 min
Jul 23, 12:39 AM EDT	Special Weather Statement	IND	Sullivan	51 min
Jul 23, 1:18 AM EDT	Flash Flood Warning	IND	Clay, Greene, Sullivan, Vigo	3 hr
Jul 23, 1:25 AM EDT	Special Weather Statement	IND	Greene	50 min
Jul 23, 1:38 AM EDT	Special Weather Statement	IND	Knox	52 min
Jul 23, 2:06 AM EDT	Flash Flood Warning	IND	Lawrence, Martin	3 hr
Jul 23, 4:50 AM EDT	Areal Flood Advisory	IND	Lawrence, Martin	3 hr
Jul 23, 6:10 AM EDT	Flash Flood Warning	IND	Daviess, Martin	3 hr
Jul 23, 6:37 AM EDT	Severe Thunderstorm Warning	IND	Knox	38 min
Jul 23, 7:34 AM EDT	Special Weather Statement	IND	Daviess	41 min
Jul 23, 7:52 AM EDT	Areal Flood Warning	IND	Daviess, Knox, Sullivan	3 hr
Jul 23, 8:25 AM EDT	Areal Flood Warning	IND	Daviess, Greene, Lawrence, Martin	3 hr
Jul 23, 9:09 AM EDT	Areal Flood Warning	IND	Daviess, Martin	3 hr
Jul 23, 11:14 AM EDT	River Flood Warning	IND	Knox, Sullivan	4 days
Jul 23, 11:14 AM EDT	River Flood Warning	IND	Knox, Sullivan	4 days
Jul 23, 1:04 PM EDT	Special Weather Statement	IND	Tippecanoe	41 min
Jul 23, 2:56 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Marion	34 min
Jul 23, 4:46 PM EDT	Tornado Warning	IND	Howard	29 min

Nearby

Special Weather Statements in Indiana, 2017 Every special weather statement 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.