Alert archive / Indiana / Areal Flood Advisories in 2021

Areal Flood Advisory 24, NWS Indianapolis, IN

July 8, 2021Tippecanoe County, Warren County, Indiana

NWS Indianapolis, IN issued this areal flood advisory at Jul 8, 2021, 5:46 AM EDT for Tippecanoe County, Warren County, Indiana. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jul 8, 2021, 5:46 AM EDT (09:46 UTC)
Expired: Jul 8, 2021, 8:45 AM EDT
In force: 3 hr
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon

Counties Tippecanoe County, IN, Warren County, IN

The radar

The Indianapolis radar (KIND), 103 km from the middle of the area, began a volume at 09:46 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, 9.8 hours before the alert went out and 128 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: 670 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1577 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory 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 areal flood advisory went out at Jul 8, 3:01 AM EDT, 2 hours 45 minutes earlier.

Area forecast discussion, Jul 8, 3:01 AM EDT, 2 hours 45 minutes before

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Hazardous weather outlook, Jul 8, 3:44 AM EDT, 2 hours 2 minutes before

Hazardous Weather Outlook
National Weather Service Indianapolis IN
344 AM EDT Thu Jul 8 2021

INZ021-028>031-035>049-051>057-060>065-067>072-090745-
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, 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
344 AM EDT Thu Jul 8 2021

This hazardous weather outlook is for central Indiana.

.DAY ONE...Today and Tonight.

Scattered to numerous showers and thunderstorms will be around
through the day today, ending all areas this evening. Isolated severe
storms with damaging winds are possible, mainly this afternoon and
early evening.

Any storm will be capable of producing gusty winds, small hail, heavy
rain, and lightning.

Storm motion will generally be to the east at around 25 mph.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Thunderstorms are possible for much of the time from Friday night
through Wednesday. Any storm can produce cloud to ground lightning,
gusty winds and locally heavy rain.

Repeated rounds of storms with heavy rain could lead to flooding
this weekend into early next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation cannot be ruled out this afternoon and early
evening.

&&

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, Jul 8, 5:18 AM EDT, 28 minutes before

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Special weather statement, Jul 8, 5:26 AM EDT, 20 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 5:18 AM EDT	Special Weather Statement	IND	Clinton, Tippecanoe	42 min
Jul 8, 5:26 AM EDT	Special Weather Statement	IND	Warren	49 min
Jul 8, 12:10 PM EDT	Special Weather Statement	IND	Hancock	35 min
Jul 8, 12:40 PM EDT	Special Weather Statement	IND	Rush	50 min
Jul 8, 12:54 PM EDT	Severe Thunderstorm Warning	IND	Rush	36 min
Jul 8, 1:28 PM EDT	Severe Thunderstorm Warning	IND	Decatur, Rush	32 min
Jul 8, 1:51 PM EDT	Special Weather Statement	IND	Putnam	54 min
Jul 8, 2:21 PM EDT	Areal Flood Advisory	IND	Decatur	3 hr
Jul 8, 2:30 PM EDT	Special Weather Statement	IND	Hendricks, Morgan	45 min
Jul 8, 2:58 PM EDT	Special Weather Statement	IND	Johnson, Marion	47 min
Jul 8, 3:00 PM EDT	Flash Flood Warning	IND	Decatur	3 hr
Jul 8, 3:42 PM EDT	Severe Thunderstorm Warning	IND	Jennings	48 min
Jul 8, 4:32 PM EDT	Special Weather Statement	IND	Brown, Monroe	28 min
Jul 8, 4:34 PM EDT	Special Weather Statement	IND	Jennings	26 min
Jul 8, 4:54 PM EDT	Severe Thunderstorm Warning	IND	Lawrence, Martin	21 min
Jul 8, 4:58 PM EDT	Special Weather Statement	IND	Jackson	32 min
Jul 8, 5:18 PM EDT	Special Weather Statement	IND	Henry	27 min
Jul 8, 5:22 PM EDT	Special Weather Statement	IND	Jackson	23 min
Jul 8, 5:49 PM EDT	Special Weather Statement	IND	Jackson	26 min

Nearby

Areal Flood Advisories in Indiana, 2021 Every areal flood advisory 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.