Alert archive / Indiana / Special Weather Statements in 2021

Special Weather Statement, NWS Indianapolis, IN

April 7, 2021Hendricks County, Indiana

NWS Indianapolis, IN issued this special weather statement at Apr 7, 2021, 2:24 PM EDT for Hendricks County, Indiana. It was in force for 51 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
Apr 7, 2021, 2:24 PM EDT (18:24 UTC)
Expired
Apr 7, 2021, 3:15 PM EDT
In force
51 min
Issued by
NWS Indianapolis, IN

County Hendricks County, IN

The radar

The Indianapolis radar (KIND), 12 km from the middle of the area, began a volume at 18:25 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, 6.4 hours before the alert went out and 192 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 12:00Z on 2021-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 56 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 12:00Z on 2021-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.193958Sfc1 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
56 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
1001 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Apr 7, 1:36 PM EDT, 48 minutes earlier.

Area forecast discussion, Apr 7, 1:36 PM EDT, 48 minutes before
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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Apr 7, 3:51 AM EDT, 10 hours 33 minutes before
Hazardous Weather Outlook
National Weather Service Indianapolis IN
351 AM EDT Wed Apr 7 2021

INZ021-028>031-035>049-051>057-060>065-067>072-080800-
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-
Including the cities of Delphi, Flora, Williamsport, West Lebanon,
Lafayette, West Lafayette, Frankfort, Kokomo, Attica, Covington,
Veedersburg, Crawfordsville, Lebanon, Zionsville, Tipton, Fishers,
Carmel, Noblesville, Anderson, Muncie, Winchester, Clinton, Newport,
Rockville, Greencastle, Plainfield, Brownsburg, Danville,
Indianapolis, Greenfield, Cumberland, New Castle, Terre Haute,
Brazil, Clay City, Spencer, Martinsville, Mooresville, Greenwood,
Franklin, Shelbyville, Rushville, Sullivan, Linton, Bloomfield,
Bloomington, Nashville, Columbus, Greensburg, Vincennes, Washington,
Loogootee, Shoals, Bedford, Mitchell, Seymour, Brownstown,
and North Vernon
351 AM EDT Wed Apr 7 2021

This hazardous weather outlook is for central Indiana.

.DAY ONE...Today and Tonight.

There is a chance of thunderstorms midday through early evening.
Severe storms are not expected. However, storms will be capable of
brief heavy rain, gusty winds and cloud to ground lightning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

There is a continued chance for thunderstorms Thursday, and periodic
chances Friday and Saturday. Storms will be capable of brief heavy
rain, gusty winds and cloud to ground lightning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

&&

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, Apr 7, 2:24 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
224 PM EDT Wed Apr 7 2021

INZ046-047-054-071915-
Morgan IN-Hendricks IN-Marion IN-
224 PM EDT Wed Apr 7 2021

...50 TO 55 MPH GUSTS POSSIBLE WITH SHOWER MOVING INTO HENDRICKS
COUNTY...

At 223 PM EDT, Doppler radar was tracking a strong
thunderstorm 8 miles west of Mooresville, or 24 miles southwest of
Indianapolis, moving northeast at 25 mph.

Wind gusts of 50 to 55 mph will be possible with this storm.

Locations impacted include...
Indianapolis, Plainfield, Brownsburg, Beech Grove, Speedway,
Mooresville, Danville, Avon, Clermont, Monrovia, Clayton, Wynnedale,
Monument Circle, Eagle Creek Reservoir, Lake Hart, Indianapolis Int'l
Airport, Little Point and Camby.

LAT...LON 3992 8632 3973 8607 3947 8653 3959 8666
      3960 8665
TIME...MOT...LOC 1823Z 224DEG 20KT 3959 8652

AW

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 2:58 PM EDTSpecial Weather StatementINDHamilton47 min
Apr 7, 3:35 PM EDTSpecial Weather StatementINDMartin40 min
Apr 7, 3:44 PM EDTSpecial Weather StatementINDMarion31 min
Apr 7, 3:51 PM EDTSpecial Weather StatementINDBoone39 min
Apr 7, 4:27 PM EDTSpecial Weather StatementINDLawrence48 min

Nearby

Special Weather Statements in Indiana, 2021Every special weather statement in 2021

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.