Alert archive / Indiana / Flash Flood Warnings in 2007

Flash Flood Warning 9, NWS Northern Indiana

July 18, 2007LaPorte County, Saint Joseph County, Indiana; Berrien County, Michigan

NWS Northern Indiana issued this flash flood warning at Jul 18, 2007, 9:11 PM CDT for LaPorte County, Saint Joseph County, Indiana; Berrien County, Michigan. It took effect at Jul 18, 2007, 9:20 PM CDT. It was in force for 3 hr. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 18, 2007, 9:11 PM CDT (02:11 UTC)
In effect from: Jul 18, 2007, 9:20 PM CDT
Expired: Jul 19, 2007, 12:15 AM CDT
In force: 3 hr
Issued by: NWS Northern Indiana
Area: Whole counties

Counties LaPorte County, IN, Saint Joseph County, IN, Berrien County, MI

The radar

The Northern Indiana radar (KIWX), 75 km from the middle of the area, began a volume at 02:11 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.

What was reported inside it

Time	Report	Where	Remark
Jul 18, 9:41 PM CDT	FLOOD	Rolling Prarie, IN	HALF OF RT 20 FLOODED WITH 2 FT OF WATER FLOWING OVER ROAD
Jul 18, 11:44 PM CDT	FLASH FLOOD	Mishawaka, IN	HICKORY ROAD IN MISHAWAKA IS FLOODED OVER

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.2 hours before the alert went out and 247 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: 3514 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1072 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 171 m²/s²
Significant tornado parameter: 1.8
Supercell composite: 13.8

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KIWX 190220
FFWIWX
INC003-033-039-085-087-091-099-113-141-MIC021-190515-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1011 PM EDT WED JUL 18 2007

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ELKHART COUNTY IN NORTH CENTRAL INDIANA
  NORTHERN KOSCIUSKO COUNTY IN NORTH CENTRAL INDIANA   
  NORTHERN MARSHALL COUNTY IN NORTH CENTRAL INDIANA 
  ST. JOSEPH COUNTY IN NORTH CENTRAL INDIANA
  NOBLE COUNTY IN NORTHEAST INDIANA
  NORTHERN LA PORTE COUNTY IN NORTHWEST INDIANA
  NORTHERN ALLEN COUNTY IN NORTHEAST INDIANA
  SOUTHERN LAGRANGE COUNTY IN NORTHEAST INDIANA
  DEKALB COUNTY IN NORTHEAST INDIANA
  SOUTHERN BERRIEN COUNTY IN SOUTHWEST MICHIGAN

* UNTIL 115 AM EDT(1215 AM CDT)

* AT 1007 PM EDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING
  FROM A THUNDERSTORM NEAR KIMMEL...OR ABOUT 5 MILES SOUTHEAST OF
  LIGONIER...MOVING WEST AT 40 MPH.

* THE THUNDERSTORM PRODUCING FLASH FLOODING WILL AFFECT BUT ARE NOT 
  LIMITED TO THE FOLLOWING LOCATIONS...
  MICHIGAN CITY...SOUTH BEND...GOSHEN...ELKHART...NORTH 
  WEBSTER...LIGONIER AND AUBURN.

THUNDERSTORMS WITH TORENTIAL RAINFALL WILL CONTINUE TO AFFECT MUCH 
OF NORTHERN INDIANA THROUGH 115 AM EDT. RAINFALL RATES OF 1 TO 3 
INCHES PER HOUR CAN BE EXPECTED. REPORTS OF UP TO 2 FEET OF WATER 
OVER STATE ROUTE 9 IN NOBLE COUNTY HAVE BEEN RECEIVED. 

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

LAT...LON 4172 8696 4156 8694 4108 8480 4149 8478
      4190 8667

$$

FISHER

1 follow-up statement

000 
WGUS73 KIWX 190303
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1059 PM EDT WED JUL 18 2007

INC003-033-039-085-087-091-099-113-141-MIC021-190515-
ELKHART IN-ST. JOSEPH IN-LA PORTE IN-LAGRANGE IN-NOBLE IN-DE KALB IN-
MARSHALL IN-KOSCIUSKO IN-ALLEN IN-BERRIEN MI-
1059 PM EDT WED JUL 18 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM EDT(1215 AM
CDT) FOR NORTHERN KOSCIUSKO...NORTHERN MARSHALL...ST. JOSEPH AND
ELKHART COUNTIES IN NORTH CENTRAL INDIANA...AND NORTHERN ALLEN...DE
KALB...NOBLE AND SOUTHERN LAGRANGE COUNTIES IN NORTHEAST INDIANA...
AND NORTHERN LA PORTE COUNTY IN NORTHWEST INDIANA...AND SOUTHERN
BERRIEN COUNTY IN SOUTHWEST MICHIGAN...

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO  MICHIGAN 
CITY...SOUTH BEND...GOSHEN...ELKHART...NORTH   WEBSTER...LIGONIER 
AND AUBURN.

WATER AS HIGH AS 2 FEET HAS BEEN REPORTED FLOWING OVER ROADS IN 
LAPORTE AND NOBLE COUNTIES...INCLUDING ROUTE 20 AND STATE ROUTE 9. 
THE HEAVY RAINFALL WILL QUICKLY RUNOFF TO LOW AREAS AND STREAMS DUE 
TO THE EXTREMELY DRY GROUND...CAUSING RAPID LIFE THREATENING FLASH 
FLOODING. 3 TO 5 INCHES OF RAIN IS EXPECTED...WITH LOCALLY HIGHER 
AMOUNTS POSSIBLE THROUGH 115 AM EDT. 

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE 
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS 
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

IF YOU HAVE FLOODING TO REPORT...YOU CAN CALL YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 4 AM EDT FOR ALL 
OF NORTHERN INDIANA AND TILL 600 AM EDT FOR NORTHWESTERN OHIO.

LAT...LON 4172 8696 4156 8694 4108 8480 4149 8478
      4190 8667

$$


FISHER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 7:44 PM CDT	Special Marine Warning	IWX		2 hr
Jul 18, 8:02 PM CDT	Tornado Warning	IWX	Saint Joseph	43 min
Jul 18, 8:50 PM CDT	Severe Thunderstorm Warning	IWX	DeKalb, Noble	55 min
Jul 18, 9:11 PM CDT	Flash Flood Warning	IWX	Allen, DeKalb, Elkhart, Kosciusko, LaGrange, Marshall and 1 more	3 hr
Jul 18, 9:24 PM CDT	Severe Thunderstorm Warning	IWX	LaPorte, Marshall, Saint Joseph	51 min
Jul 18, 9:51 PM CDT	Flood Watch	IWX	Adams, Allen, Blackford, Cass, DeKalb, Elkhart and 13 more	5 hr
Jul 18, 10:01 PM CDT	Severe Thunderstorm Warning	IWX	Marshall, Starke	44 min
Jul 18, 10:22 PM CDT	Flash Flood Warning	IWX	Adams, Allen, Huntington, Wabash, Wells, Whitley	6 hr
Jul 18, 10:22 PM CDT	Flash Flood Warning	IWX	Fulton, Kosciusko, Marshall, Pulaski, Starke	6 hr
Jul 18, 10:22 PM CDT	Flash Flood Warning	IWX	LaPorte	6 hr
Jul 18, 10:26 PM CDT	Tornado Warning	IWX	Kosciusko, Marshall	49 min

Nearby

Flash Flood Warnings in Indiana, 2007 Flash Flood Warnings in Michigan, 2007 Every flash flood warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.