Alert archive / Indiana / Flash Flood Warnings in 2008

Flash Flood Warning 21, NWS Northern Indiana

August 5, 2008LaPorte County, Starke County, Indiana

NWS Northern Indiana issued this flash flood warning at Aug 5, 2008, 3:34 AM CDT for LaPorte County, Starke County, Indiana. It was in force for 6 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
Aug 5, 2008, 3:34 AM CDT (08:34 UTC)
Expired
Aug 5, 2008, 9:30 AM CDT
In force
6 hr
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Flood severity
None

Counties LaPorte County, IN, Starke County, IN

The radar

The Northern Indiana radar (KIWX), 85 km from the middle of the area, began a volume at 08:37 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 00:00Z, 8.6 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, Lincoln, IL at 00:00Z on 2008-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7429 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 00:00Z on 2008-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 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
7429 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
819 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
175 m²/s²
Significant tornado parameter
3.9
Supercell composite
20.6

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KIWX 050834
FFWIWX
INC091-149-051430-
/O.NEW.KIWX.FF.W.0021.080805T0834Z-080805T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
334 AM CDT TUE AUG 5 2008

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN LA PORTE COUNTY IN NORTHWEST INDIANA
  STARKE COUNTY IN NORTHWEST INDIANA

* UNTIL 930 AM CDT

* AT 328 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM THUNDERSTORMS ALONG A LINE EXTENDING FROM 13
  MILES WEST OF HASKELL TO BASS LAKE...OR ALONG A LINE EXTENDING FROM
  SOUTH HAVEN TO 4 MILES SOUTH OF KNOX...MOVING EAST SOUTHEAST AT 40 
  MPH.

* THUNDERSTORMS PRODUCING FLASH FLOODING WILL AFFECT THE FOLLOWING
LOCATIONS...
  KNOX AND WANATAH...
  HAMLET...
  SOUTH WANATAH AND WINONA...
  HASKELL AND THOMASTON...
  BREMS...
  HANNA AND OBER...

ADDITIONAL LOCAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE LIKELY IN THE 
WARNED AREA AS THUNDERSTORMS CONTINUE TO TRAIN OUT OF NORTHEAST 
ILLINOIS EARLY THIS MORNING. DOPPLER RADAR ESTIMATES WIDESPREAD 2 TO 
4 INCH RAIN AMOUNTS IN THE WARNED AREA THROUGH 430 AM EDT...330 AM CDT. 

EXCESSIVE RUNOFF FROM CONTINUED HEAVY RAINFALL WILL CAUSE FLOODING 
OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. 
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF 
CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.
DO NOT DRIVE ACROSS FLOODED ROADWAYS.

LAT...LON 4151 8693 4143 8648 4118 8648 4117 8653
      4118 8693

$$
2 follow-up statements
000 
WGUS73 KIWX 050933
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
533 AM EDT TUE AUG 5 2008

INC091-149-051430-
/O.CON.KIWX.FF.W.0021.000000T0000Z-080805T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STARKE IN-LA PORTE IN-
433 AM CDT TUE AUG 5 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 AM CDT FOR
SOUTHERN LA PORTE AND STARKE COUNTIES...

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GROVERTOWN...
KNOX...LA CROSSE...OBER...OAK GROVE...LOMAX...ENGLISH LAKE...
WINONA...TOTO...SAN PIERRE...NORTH JUDSON AND BASS LAKE.

ADDITIONAL RAINFALL AMOUNTS UP TO ONE INCH THROUGH 530 AM CDT ARE 
POSSIBLE OVER STARKE COUNTY WHILE HEAVY RAIN COMES TO AN END OVER 
FAR SOUTHWESTERN LAPORTE COUNTY BY 500 AM CDT.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

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

LAT...LON 4151 8693 4143 8648 4118 8648 4117 8653
      4118 8693

$$
000 
WGUS73 KIWX 051422 RRA
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1022 AM EDT TUE AUG 5 2008

INC091-149-051432-
/O.EXP.KIWX.FF.W.0021.000000T0000Z-080805T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STARKE IN-LA PORTE IN-
922 AM CDT TUE AUG 5 2008

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1030 AM EDT/930 AM CDT/ FOR
SOUTHERN LA PORTE AND STARKE COUNTIES...

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

LAT...LON 4151 8693 4143 8648 4118 8648 4117 8653
      4118 8693

$$

JC

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 8:16 PM CDTSpecial Marine WarningIWX119 min
Aug 4, 8:37 PM CDTSevere Thunderstorm WarningIWXLaPorte, Marshall, Pulaski, Saint Joseph, Starke, White68 min
Aug 4, 8:48 PM CDTTornado WarningIWXLaPorte, Starke42 min
Aug 4, 9:06 PM CDTTornado WarningIWXLaPorte, Saint Joseph54 min
Aug 4, 9:14 PM CDTSevere Thunderstorm WarningIWXCass, Elkhart, Fulton, Kosciusko, LaGrange, Marshall and 7 more61 min
Aug 4, 9:17 PM CDTTornado WarningIWXFulton, LaPorte, Marshall, Starke58 min
Aug 4, 9:38 PM CDTSevere Thunderstorm WarningIWXWhite39 min
Aug 4, 9:43 PM CDTTornado WarningIWXElkhart, Kosciusko, Marshall, Saint Joseph45 min
Aug 4, 9:59 PM CDTTornado WarningIWXFulton, Kosciusko, Miami, Wabash47 min
Aug 5, 12:06 AM CDTSpecial Marine WarningIWX54 min
Aug 5, 12:12 AM CDTSevere Thunderstorm WarningIWXLaPorte, Starke63 min
Aug 5, 12:32 AM CDTAreal Flood AdvisoryIWXFulton, LaPorte, Marshall, Pulaski, Starke118 min
Aug 5, 2:51 AM CDTAreal Flood AdvisoryIWXCass, Fulton, LaPorte, Miami, Pulaski, Starke and 1 more114 min
Aug 5, 4:28 AM CDTFlash Flood WarningIWXFulton, Pulaski3 hr
Aug 5, 4:57 AM CDTFlash Flood WarningIWXCass, Miami, White5 hr
Aug 5, 10:22 AM CDTRiver Flood WatchIWXCarroll, White27 hr

Nearby

Flash Flood Warnings in Indiana, 2008Every flash flood warning in 2008

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.