Alert archive / Indiana / Areal Flood Warnings in 2021

Areal Flood Warning 21, NWS Indianapolis, IN

August 27, 2021Bartholomew County, Brown County, Jackson County, Indiana

NWS Indianapolis, IN issued this areal flood warning at Aug 27, 2021, 6:24 PM EDT for Bartholomew County, Brown County, Jackson County, Indiana. It was in force for 3 hr. 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 27, 2021, 6:24 PM EDT (22:24 UTC)
Expired
Aug 27, 2021, 9:30 PM EDT
In force
3 hr
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Flood severity
None

Counties Bartholomew County, IN, Brown County, IN, Jackson County, IN

The radar

The Indianapolis radar (KIND), 74 km from the middle of the area, began a volume at 22:08 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.4 hours before the alert went out and 186 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, Cncnati-Daytn, OH at 12:00Z on 2021-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 167 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2021-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
167 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
1311 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

880 
WGUS43 KIND 272224
FLWIND

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Indianapolis IN
624 PM EDT Fri Aug 27 2021

INC005-013-071-280130-
/O.NEW.KIND.FA.W.0021.210827T2224Z-210828T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bartholomew IN-Brown IN-Jackson IN-
624 PM EDT Fri Aug 27 2021

The National Weather Service in Indianapolis has issued a

* Flood Warning for...
  Bartholomew County in central Indiana...
  Eastern Brown County in south central Indiana...
  Northeastern Jackson County in south central Indiana...

* Until 930 PM EDT.

* At 624 PM EDT, Doppler radar indicated heavy rain due to 
  thunderstorms. Flooding is ongoing or expected to begin shortly in 
  the warned area. Between 1 and 2.5 inches of rain have fallen.

* Some locations that will experience flooding include...
  Columbus, Seymour, Nashville, Elizabethtown, Clifford, Jonesville, 
  Waymansville, Spurgeons Corner, Stone Head, Gnaw Bone, Cortland, 
  Azalia, Taylorsville, Story and Elkinsville.

Additional rainfall amounts up to 1 inch are possible in the warned 
area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3907 8629 3930 8616 3928 8583 3915 8578
      3913 8579 3913 8580 3909 8580 3907 8580
      3906 8580 3901 8580 3898 8580 3895 8606

$$

AW

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 5:49 PM EDTSpecial Weather StatementINDBartholomew26 min
Aug 27, 6:21 PM EDTSpecial Weather StatementINDBartholomew24 min
Aug 27, 6:46 PM EDTSpecial Weather StatementINDRush29 min
Aug 27, 7:26 PM EDTAreal Flood WarningINDRush2 hr

Nearby

Areal Flood Warnings in Indiana, 2021Every areal flood warning 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.