Alert archive / Indiana / Areal Flood Warnings in 2021

Areal Flood Warning 13, NWS Indianapolis, IN

July 12, 2021Clinton County, Montgomery County, Tippecanoe County, Indiana

NWS Indianapolis, IN issued this areal flood warning at Jul 12, 2021, 7:21 PM EDT for Clinton County, Montgomery County, Tippecanoe 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
Jul 12, 2021, 7:21 PM EDT (23:21 UTC)
Expired
Jul 12, 2021, 10:30 PM EDT
In force
3 hr
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Flood severity
None

Counties Clinton County, IN, Montgomery County, IN, Tippecanoe County, IN

The radar

The Indianapolis radar (KIND), 72 km from the middle of the area, began a volume at 23:25 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, 11.4 hours before the alert went out and 158 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 2021-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 653 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, Lincoln, IL at 12:00Z on 2021-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 square meters per square second.19395878Sfc1 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
653 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
548 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

039 
WGUS43 KIND 122321
FLWIND

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Indianapolis IN
721 PM EDT Mon Jul 12 2021

INC023-107-157-130230-
/O.NEW.KIND.FA.W.0013.210712T2321Z-210713T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clinton IN-Montgomery IN-Tippecanoe IN-
721 PM EDT Mon Jul 12 2021

The National Weather Service in Indianapolis has issued a

* Flood Warning for...
  Northwestern Clinton County in central Indiana...
  Northeastern Montgomery County in west central Indiana...
  Southeastern Tippecanoe County in west central Indiana...

* Until 1030 PM EDT.

* At 721 PM EDT, Doppler radar indicated heavy rain has fallen due 
  to thunderstorms. Flooding is ongoing or expected to begin shortly 
  in the warned area. Between 1 and 2 inches of rain have fallen.

* Some locations that will experience flooding include...
  Rossville, Mulberry, Darlington and Clarks Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4007 8686 4032 8681 4033 8679 4035 8676
      4040 8669 4043 8669 4043 8665 4043 8651
      4015 8672 4011 8677 4002 8679 4004 8681

$$

AW
1 follow-up statement
009 
WGUS83 KIND 130224
FLSIND

Flood Statement
National Weather Service Indianapolis IN
1024 PM EDT Mon Jul 12 2021

INC023-107-157-130234-
/O.EXP.KIND.FA.W.0013.000000T0000Z-210713T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clinton IN-Montgomery IN-Tippecanoe IN-
1024 PM EDT Mon Jul 12 2021

...FLOOD WARNING WILL EXPIRE AT 1030 PM EDT THIS EVENING FOR 
NORTHWESTERN CLINTON, NORTHEASTERN MONTGOMERY AND SOUTHEASTERN 
TIPPECANOE COUNTIES...

Flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

LAT...LON 4007 8686 4032 8681 4033 8679 4035 8676
      4040 8669 4043 8669 4043 8665 4043 8651
      4015 8672 4011 8677 4002 8679 4004 8681

$$

AW

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 11:03 PM EDTRiver Flood WarningINDJackson, Lawrence, Washington13 hr
Jul 12, 5:54 PM EDTAreal Flood WarningINDParke, Vigo3 hr
Jul 12, 5:56 PM EDTAreal Flood AdvisoryINDCarroll, Tippecanoe3 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.