Alert archive / Indiana / Flash Flood Warnings in 2003

Flash Flood Warning 24, NWS Northern Indiana

July 8, 2003Cass County, White County, Indiana

NWS Northern Indiana issued this flash flood warning at Jul 8, 2003, 4:32 PM EST for Cass County, White 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 8, 2003, 4:32 PM EST (21:32 UTC)
Expired: Jul 8, 2003, 7:30 PM EST
In force: 3 hr
Issued by: NWS Northern Indiana
Area: Counties, with a storm outline in the text

Counties Cass County, IN, White County, IN

The radar

The Northern Indiana radar (KIWX), 110 km from the middle of the area, began a volume at 21:36 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, 9.5 hours before the alert went out and 172 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1887 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 1341 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -68 m²/s²
0-3 km storm-relative helicity: -48 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KIWX 082136
FFWIWX
INC017-181-090130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
432 PM EST TUE JUL 8 2003

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CASS COUNTY IN INDIANA
  WHITE COUNTY IN INDIANA

* UNTIL 830 PM EST

* AT 432 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN ALONG A LINE EXTENDING FROM 8
  MILES NORTHWEST OF MONON TO 9 MILES WEST OF BROOKSTON...MOVING EAST
  AT 20 MPH. ADDITIONAL THUNDERSTORMS EXTEND BACK WEST INTO ILLINOIS
  AND THESE STORMS WILL MOVE OVER THE SAME AREA FOR THE NEXT SEVERAL 
  HOURS. RAINFALL RATES OF NEAR TWO INCHES PER HOUR WILL OCCUR AND  
  CAUSE FLASH FLOODING. 

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. 

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
NORTHERN INDIANA.

LAT...LON 4085 8700 4092 8699 4092 8616 4058 8616
          4058 8636 4071 8646 4070 8676 4057 8678
          4057 8711 4084 8712

1 follow-up statement

000 
WGUS73 KIWX 090007
FFSIWX
INC017-181-090130-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
700 PM EST TUE JUL 8 2003

...FLASH FLOOD WARNING CONTINUES...

THE FLASH FLOOD WARNING CONTINUES FOR

  CASS COUNTY IN INDIANA
  WHITE COUNTY IN INDIANA

UNTIL 830 PM EST...

NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUE TO INDICATE 
THUNDERSTORMS WITH HEAVY RAIN OVER WHITE AND CASS COUNTIES. UP TO 
TWO INCHES OF RAIN FELL BETWEEN 430 PM AND 7 PM. ADDITIONAL RAINFALL 
OF UP TO AN INCH IS LIKELY BETWEEN 7 PM AND 830 PM. THIS ADDITIONAL 
RAINFALL WILL AGGRAVATE THE CURRENT FLASH FLOOD SITUATION. 

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.

TO REPORT FLOODING HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR
REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN NORTHERN
INDIANA.

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 7, 11:14 PM EST	Severe Thunderstorm Warning	IWX	LaPorte, Pulaski, Starke, White	61 min
Jul 7, 11:18 PM EST	Severe Thunderstorm Warning	IWX	LaPorte, Pulaski, Starke, White	57 min
Jul 7, 11:40 PM EST	Severe Thunderstorm Warning	IWX	Cass, Fulton, Marshall, Saint Joseph	35 min
Jul 8, 12:03 AM EST	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko, Miami, Wabash	57 min
Jul 8, 12:21 AM EST	Severe Thunderstorm Warning	IWX	Grant, Huntington, LaGrange, Noble, Whitley	59 min
Jul 8, 12:43 AM EST	Severe Thunderstorm Warning	IWX	Allen, Blackford, DeKalb, Steuben, Wells	62 min
Jul 8, 1:07 AM EST	Severe Thunderstorm Warning	IWX	Adams, Jay	53 min
Jul 8, 12:31 PM EST	Severe Thunderstorm Warning	IWX	LaGrange, Noble	44 min
Jul 8, 1:16 PM EST	Severe Thunderstorm Warning	IWX	DeKalb	44 min
Jul 8, 2:30 PM EST	Severe Thunderstorm Warning	IWX	Miami, Wabash	30 min
Jul 8, 5:14 PM EST	Flash Flood Warning	IWX	Jay	3 hr

Nearby

Flash Flood Warnings in Indiana, 2003 Every flash flood warning in 2003

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.