Alert archive / Indiana / Flash Flood Warnings in 2015

Flash Flood Warning 42, NWS Indianapolis, IN

July 26, 2015Tippecanoe County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Jul 26, 2015, 6:58 PM EDT for 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 26, 2015, 6:58 PM EDT (22:58 UTC)
Expired
Jul 26, 2015, 10:00 PM EDT
In force
3 hr
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Flood severity
None

County Tippecanoe County, IN

The radar

The Indianapolis radar (KIND), 93 km from the middle of the area, began a volume at 22:59 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, 11.0 hours before the alert went out and 151 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 2015-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 708 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 2015-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
708 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
939 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
1 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

173 
WGUS53 KIND 262258
FFWIND
INC157-270200-
/O.NEW.KIND.FF.W.0042.150726T2258Z-150727T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
658 PM EDT SUN JUL 26 2015

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  TIPPECANOE COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 1000 PM EDT

* AT 657 PM EDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
  WARNED AREA. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LAFAYETTE...WEST LAFAYETTE...SHADELAND...DAYTON...BATTLE GROUND...
  CLARKS HILL AND PURDUE UNIVERSITY.

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 161 AND 183.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 4056 8670 4022 8670 4021 8709 4056 8709

$$

TDUD
2 follow-up statements
927 
WGUS73 KIND 270107
FFSIND

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
907 PM EDT SUN JUL 26 2015

INC157-270200-
/O.CON.KIND.FF.W.0042.000000T0000Z-150727T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TIPPECANOE IN-
907 PM EDT SUN JUL 26 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT FOR
TIPPECANOE COUNTY...

AT 906 PM EDT...TRAINED WEATHER SPOTTERS REPORTED THUNDERSTORMS 
PRODUCING HEAVY RAIN IN CASTLETON. UP TO THREE INCHES OF RAIN HAVE 
ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
LAFAYETTE...WEST LAFAYETTE...SHADELAND...DAYTON...BATTLE GROUND...
CLARKS HILL AND PURDUE UNIVERSITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4056 8670 4022 8670 4021 8709 4056 8709

$$

MMB/PUMA
953 
WGUS73 KIND 270203
FFSIND

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1003 PM EDT SUN JUL 26 2015

INC157-270212-
/O.EXP.KIND.FF.W.0042.000000T0000Z-150727T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TIPPECANOE IN-
1003 PM EDT SUN JUL 26 2015

...THE FLASH FLOOD WARNING FOR TIPPECANOE COUNTY HAS EXPIRED...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT.

LAT...LON 4056 8670 4022 8670 4021 8709 4056 8709

$$

TDUD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 6:52 PM EDTAreal Flood AdvisoryINDHamilton, Marion3 hr
Jul 26, 7:23 PM EDTFlash Flood WarningINDHamilton, Marion4 hr
Jul 26, 7:36 PM EDTFlash Flood WarningINDBoone, Clinton, Hamilton, Hendricks, Marion, Montgomery4 hr

Nearby

Flash Flood Warnings in Indiana, 2015Every flash flood warning in 2015

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.