Alert archive / Indiana / Flash Flood Warnings in 2004

Flash Flood Warning 39, NWS Indianapolis, IN

August 26, 2004Knox County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Aug 26, 2004, 11:01 AM EST for Knox County, Indiana. It was in force for 59 min. 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 26, 2004, 11:01 AM EST (16:01 UTC)
Expired
Aug 26, 2004, 12:00 PM EST
In force
59 min
Issued by
NWS Indianapolis, IN
Area
Counties, with a storm outline in the text

County Knox County, IN

The radar

The Evansville,IN radar (KVWX), 66 km from the middle of the area, began a volume at 16:04 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, 4.0 hours before the alert went out and 177 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 2004-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 467 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 2004-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 300 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
467 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
756 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
300 m²/s²
0-3 km storm-relative helicity
317 m²/s²
Significant tornado parameter
0.0
Supercell composite
12.8

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KIND 261604
FFWIND
INC083-261800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1101 AM EST THU AUG 26 2004

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN KNOX COUNTY IN SOUTHWEST INDIANA

* UNTIL 100 PM EST

* AT 1059 AM EST...A THUNDERSTORM WITH HEAVY RAINFALL WAS NEAR 
  RUSSELLVILLE...OR ABOUT 10 MILES NORTH OF VINCENNES...MOVING EAST 
  AT 10 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SANDBORN...OAKTOWN...EDWARDSPORT...BRUCEVILLE AND BICKNELL.

RADAR ESTIMATES BETWEEN 2 AND 3 INCHES OF RAIN HAVE FALLEN OVER 
NORTHWEST KNOX COUNTY THIS MORNING. AN ADDITIONAL INCH OF RAIN MAY
FALL BY NOON OR SHORTLY AFTER NOON. 

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. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

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 3891 8764 3869 8766 3868 8730 3890 8716

$$

DS
2 follow-up statements
000 
WGUS73 KIND 261643
FFSIND
INC083-261800-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1141 AM EST THU AUG 26 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 100 PM EST FOR NORTHEASTERN
KNOX COUNTY...

AT 1136 AM EST...A THUNDERSTORM CAPABLE OF PRODUCING FLASH FLOODING 
WAS LOCATED NEAR OAKTOWN...OR ABOUT 11 MILES NORTHEAST OF 
VINCENNES...MOVING EAST AT 10 MPH. THE STORM HAS DIMINISHED DURING 
THE PAST 30 MINUTES HOWEVER FLASH FLOODING IS STILL POSSIBLE.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SANDBORN...EDWARDSPORT...BRUCEVILLE...BICKNELL AND RUSSELLVILLE.

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. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

LAT...LON 3891 8764 3869 8766 3868 8730 3890 8716

$$

PUMA
000 
WGUS73 KIND 261750
FFSIND
INC083-261800-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1249 PM EST THU AUG 26 2004

...THE FLASH FLOOD WARNING FOR NORTHEASTERN KNOX COUNTY WILL BE 
ALLOWED TO EXPIRE...

THE STORM THAT WAS PRODUCING FLASH FLOODING ACROSS NORTHERN KNOX 
COUNTY HAS DIMINISHED AND EXITED THE AREA. THEREFORE THE FLASH FLOOD 
WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3891 8764 3869 8766 3868 8730 3890 8716

$$

PUMA

Nearby

Flash Flood Warnings in Indiana, 2004Every flash flood warning in 2004

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.