Alert archive / Indiana / Special Weather Statements in 2024

Special Weather Statement, NWS Indianapolis, IN

August 30, 2024Johnson County, Indiana

NWS Indianapolis, IN issued this special weather statement at Aug 30, 2024, 9:13 PM EDT for Johnson County, Indiana. It was in force for 32 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
Aug 30, 2024, 9:13 PM EDT (01:13 UTC)
Expired
Aug 30, 2024, 9:45 PM EDT
In force
32 min
Issued by
NWS Indianapolis, IN
Hail
0.25 in
Wind
50

County Johnson County, IN

The radar

The Indianapolis radar (KIND), 32 km from the middle of the area, began a volume at 01:15 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, 1.2 hours before the alert went out and 213 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2024-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1365 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2024-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1365 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
813 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.0

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 Aug 30, 7:34 PM EDT, 1 hour 39 minutes earlier.

Area forecast discussion, Aug 30, 7:34 PM EDT, 1 hour 39 minutes before
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Hazardous weather outlook, Aug 30, 4:06 PM EDT, 5 hours 7 minutes before
Hazardous Weather Outlook
National Weather Service Indianapolis IN
406 PM EDT Fri Aug 30 2024

INZ021-028>031-035>049-051>057-060>065-067>072-312015-
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone-
Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam-
Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-Johnson-Shelby-
Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
406 PM EDT Fri Aug 30 2024

This hazardous weather outlook is for central Indiana.

.DAY ONE...Tonight.

Scattered thunderstorms will develop this afternoon and evening across
South Central Indiana. Brief periods of heavy rain, lightning, gusty
winds, and small hail are possible with any storm.

Additional thunderstorms are expected overnight tonight for all of
Central Indiana.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Thunderstorm chances will continue Saturday. An isolated strong storm
is possible across far southern sections of the area then.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

&&

More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind

In the hours before

Special weather statement, Aug 30, 7:33 PM EDT, 1 hour 40 minutes before
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Special weather statement, Aug 30, 7:42 PM EDT, 1 hour 31 minutes before
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Special weather statement, Aug 30, 8:29 PM EDT, 44 minutes before
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Special weather statement, Aug 30, 8:47 PM EDT, 26 minutes before
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Special weather statement, Aug 30, 8:58 PM EDT, 15 minutes before
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Special weather statement, Aug 30, 9:13 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
913 PM EDT Fri Aug 30 2024

INZ054-055-310145-
Johnson IN-Morgan IN-
913 PM EDT Fri Aug 30 2024

...A strong thunderstorm will impact portions of southeastern Morgan
and west central Johnson Counties through 945 PM EDT...

At 913 PM EDT, Doppler radar was tracking a strong thunderstorm near
Martinsville, or 20 miles northeast of Bloomington, moving northeast
at 20 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Franklin, Martinsville, New Whiteland, Whiteland, Bargersville,
Brooklyn, Morgantown, Bethany, Mahalasville, and Centerton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3935 8631 3934 8636 3938 8644 3956 8640
      3955 8607 3941 8620
TIME...MOT...LOC 0113Z 213DEG 17KT 3942 8632

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

ME

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 8:29 PM EDTSpecial Weather StatementINDFountain46 min
Aug 30, 8:47 PM EDTSpecial Weather StatementINDHendricks28 min
Aug 30, 8:58 PM EDTSpecial Weather StatementINDMorgan32 min
Aug 30, 9:40 PM EDTSpecial Weather StatementINDJohnson35 min
Aug 30, 9:55 PM EDTSevere Thunderstorm WarningINDHoward, Tipton22 min
Aug 30, 10:12 PM EDTSpecial Weather StatementINDMarion33 min
Aug 30, 10:24 PM EDTSpecial Weather StatementINDHamilton, Tipton36 min
Aug 30, 10:27 PM EDTSpecial Weather StatementINDHamilton33 min
Aug 30, 10:37 PM EDTAreal Flood AdvisoryINDHamilton, Hancock, Marion3 hr
Aug 30, 10:46 PM EDTSpecial Weather StatementINDMadison44 min
Aug 30, 10:55 PM EDTSevere Thunderstorm WarningINDDelaware, Hancock, Henry, Madison35 min
Aug 30, 11:07 PM EDTSpecial Weather StatementINDMorgan23 min
Aug 30, 11:13 PM EDTAreal Flood AdvisoryINDJohnson, Morgan3 hr
Aug 30, 11:17 PM EDTSpecial Weather StatementINDDelaware43 min
Aug 31, 7:42 AM EDTSpecial Weather StatementINDOwen33 min

Nearby

Special Weather Statements in Indiana, 2024Every special weather statement 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.