Alert archive / Indiana / Flash Flood Warnings in 2016

Flash Flood Warning 3, NWS Northern Indiana

July 29, 2016LaPorte County, Indiana

NWS Northern Indiana issued this flash flood warning at Jul 29, 2016, 2:43 PM CDT for LaPorte County, Indiana. It was in force for 3 hr. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 29, 2016, 2:43 PM CDT (19:43 UTC)
Expired
Jul 29, 2016, 5:30 PM CDT
In force
3 hr
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Flood severity
None

County LaPorte County, IN

The radar

The Northern Indiana radar (KIWX), 88 km from the middle of the area, began a volume at 19:47 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

TimeReportWhereRemark
Jul 29, 2:47 PM CDTFLOODWestville, IN1-3 INCHES OF WATER COVERING THE ROADS.
Jul 29, 2:55 PM CDTFLOOD2 Sw La Porte, INWATER COMING INTO BASEMENT. 1.25 INCHES OF RAIN IN 20 MINUTES.
Jul 29, 3:00 PM CDTFLOOD1 Wnw La Porte, INPICTURE RELAYED VIA TWITTER FROM ABC57 OF AT LEAST 1 FOOT OF WATER AT INTERSECTION OF TYLER AND WASHINGTON ST.

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 12:00Z, 7.7 hours before the alert went out and 229 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 2016-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 75 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 2016-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
75 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
918 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
-4 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

302 
WGUS53 KIWX 291943
FFWIWX
INC091-292230-
/O.NEW.KIWX.FF.W.0003.160729T1943Z-160729T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
243 PM CDT FRI JUL 29 2016

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN LA PORTE COUNTY IN INDIANA...

* UNTIL 530 PM CDT
    
* AT 237 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PERSISTING
  ACROSS NORTHERN LA PORTE COUNTY...ESPECIALLY FROM WESTVILLE TO THE
  TOWN OF LA PORTE AS INDIVIDUAL STORMS ARE MOVING AT AROUND 5 MPH
  TO THE EAST. RADAR ESTIMATES OF 2 TO LOCALLY OVER 3 INCHES OF RAIN
  HAS FALLEN OVER THE LAST 2 HOURS. REPORTS OF FLOODING HAVE BEEN
  RECEIVED ACROSS PORTIONS OF US 421 AND 6 NEAR WESTVILLE WITH
  WATER OVER THE ROADS. 
  

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LA PORTE...WESTVILLE...BYRON...PINOLA...OTIS...PINHOOK AND ROLLING
  PRARIE.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO LOCALLY 3 INCHES CAN BE EXPECTED
ACROSS PORTIONS OF THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH. 

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4164 8693 4170 8653 4165 8653 4165 8649
      4160 8649 4148 8693

$$

FISHER
2 follow-up statements
443 
WGUS73 KIWX 292126
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
426 PM CDT FRI JUL 29 2016

INC091-292230-
/O.CON.KIWX.FF.W.0003.000000T0000Z-160729T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LA PORTE IN-
426 PM CDT FRI JUL 29 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
NORTHERN LA PORTE COUNTY...

AT 423 PM CDT...DOPPLER RADAR INDICATED THE THUNDERSTORMS THAT
PROMPTED THE FLASH FLOOD WARNING HAVE WEAKENED. HOWEVER...ADDITIONAL
SHOWERS AND THUNDERSTORMS MAY IMPACT THE WARNING AREA THROUGH 530 PM
CDT. RADAR ESTIMATES THAT SOME LOCATIONS PICKED UP OVER 3 INCHES OF
RAIN IN A SHORT PERIOD OF TIME. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
LA PORTE...WESTVILLE...BYRON...PINOLA...OTIS...PINHOOK AND ROLLING
PRARIE.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4164 8693 4170 8653 4165 8653 4165 8649
      4160 8649 4148 8693

$$

FISHER
266 
WGUS73 KIWX 292222
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
522 PM CDT FRI JUL 29 2016

INC091-292230-
/O.EXP.KIWX.FF.W.0003.000000T0000Z-160729T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LA PORTE IN-
522 PM CDT FRI JUL 29 2016

...THE FLASH FLOOD WARNING FOR NORTHERN LA PORTE COUNTY WILL EXPIRE
AT 530 PM CDT...

THE HEAVY RAIN HAS ENDED...AND LIFE THREATENING FLOODING IS NO
LONGER EXPECTED. WATER MAY REMAIN IN LOW LYING AND POOR DRAINAGE
AREAS INTO THIS EVENING. IF YOU ENCOUNTER WATER OVER A ROADWAY OR
ROAD CLOSURE SIGNS...TURN AROUND AND FIND ANOTHER ROUTE. 

LAT...LON 4164 8693 4170 8653 4165 8653 4165 8649
      4160 8649 4148 8693

$$

FISHER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 1:43 PM CDTSpecial Weather StatementIWXLaPorte47 min
Jul 29, 2:06 PM CDTAreal Flood WarningIWXLaPorte3 hr
Jul 29, 2:15 PM CDTSevere Thunderstorm WarningIWXLaPorte45 min
Jul 29, 3:02 PM CDTSpecial Weather StatementIWXKosciusko28 min
Jul 29, 5:06 PM CDTAreal Flood AdvisoryIWXHuntington, Wabash3 hr
Jul 29, 5:28 PM CDTSpecial Weather StatementIWXWabash32 min

Nearby

Flash Flood Warnings in Indiana, 2016Every flash flood warning in 2016

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.