Alert archive / Indiana / Flash Flood Warnings in 2005

Flash Flood Warning 29, NWS Indianapolis, IN

July 20, 20054 counties in Indiana

NWS Indianapolis, IN issued this flash flood warning at Jul 20, 2005, 11:41 PM EST for 4 counties in 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 20, 2005, 11:41 PM EST (04:41 UTC)
Expired
Jul 21, 2005, 2:45 AM EST
In force
3 hr
Issued by
NWS Indianapolis, IN
Area
Counties, with a storm outline in the text

Counties Boone County, IN, Hamilton County, IN, Hendricks County, IN, Marion County, IN

The radar

The Indianapolis radar (KIND), 31 km from the middle of the area, began a volume at 04:45 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 00:00Z, 4.7 hours before the alert went out and 206 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 00:00Z on 2005-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 800 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 00:00Z on 2005-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
800 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
999 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KIND 210442
FFWIND
INC011-057-063-097-210845-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1141 PM EST WED JUL 20 2005

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BOONE COUNTY IN CENTRAL INDIANA
  HAMILTON COUNTY IN CENTRAL INDIANA
  HENDRICKS COUNTY IN CENTRAL INDIANA
  MARION COUNTY IN CENTRAL INDIANA
  THIS INCLUDES THE CITY OF INDIANAPOLIS

* UNTIL 345 AM EST

* AT 1141 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO            
  WESTFIELD...ULEN...THORNTOWN...SHERIDAN...NOBLESVILLE...
  LEBANON...CICERO...INDIANAPOLIS AND ARCADIA.

THUNDERSTORMS WILL BRING UP TO AN INCH OF RAIN IN LESS THAN AN 
HOUR.  

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

LAT...LON 4018 8590 3994 8589 3994 8593 3992 8595
      3966 8598 3966 8666 4018 8668

$$
SALLY
1 follow-up statement
000 
WGUS73 KIND 210612
FFSIND

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
110 AM EST THU JUL 21 2005

INC011-057-063-097-210620-
BOONE-HAMILTON-HENDRICKS-MARION-
110 AM EST THU JUL 21 2005

...THE FLASH FLOOD WARNING FOR HENDRICKS...MARION...BOONE AND
HAMILTON COUNTIES IS CANCELLED...

THUNDERSTORMS WILL CONTINUE TO MOVE THROUGH THE AREA OVERNIGHT BUT 
THE RAIN FROM THESE SHOULD NOT BE ENOUGH TO CAUSE FLASH FLOODING.

LAT...LON 4018 8590 3994 8589 3994 8593 3992 8595
      3966 8598 3966 8666 4018 8668

$$

HAINES

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 10:13 PM ESTSevere Thunderstorm WarningINDBoone, Clinton, Montgomery, Tippecanoe32 min
Jul 20, 10:16 PM ESTFlash Flood WarningINDFountain, Tippecanoe, Warren119 min
Jul 20, 10:51 PM ESTSevere Thunderstorm WarningINDBoone, Montgomery40 min
Jul 20, 11:25 PM ESTSevere Thunderstorm WarningINDBoone, Hendricks, Marion35 min
Jul 20, 11:58 PM ESTSevere Thunderstorm WarningINDPutnam28 min
Jul 21, 12:06 AM ESTSevere Thunderstorm WarningINDHendricks, Morgan34 min
Jul 21, 1:07 AM ESTFlash Flood WarningINDFountain, Tippecanoe, Warren53 min
Jul 21, 1:57 AM ESTSevere Thunderstorm WarningINDFountain, Montgomery48 min
Jul 21, 2:18 AM ESTFlash Flood WarningINDMontgomery27 min
Jul 21, 6:54 PM ESTSevere Thunderstorm WarningINDHamilton, Tipton36 min

Nearby

Flash Flood Warnings in Indiana, 2005Every flash flood warning in 2005

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.