Alert archive / Indiana / Flash Flood Warnings in 2016

Flash Flood Warning 7, NWS Northern Indiana

August 18, 2016Grant County, Miami County, Indiana

NWS Northern Indiana issued this flash flood warning at Aug 18, 2016, 4:32 PM EDT for Grant County, Miami County, Indiana. It was in force for 3 hr. 1 report 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: Aug 18, 2016, 4:32 PM EDT (20:32 UTC)
Expired: Aug 18, 2016, 7:30 PM EDT
In force: 3 hr
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Flood severity: None

Counties Grant County, IN, Miami County, IN

The radar

The Northern Indiana radar (KIWX), 86 km from the middle of the area, began a volume at 20:33 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
Aug 18, 6:30 PM EDT	HEAVY RAIN 2.57	3 W Amboy, IN	. THE DURATION OF THE HEAVY RAIN EVENT WAS 3 HOURS.

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

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.5 hours before the alert went out and 222 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: 87 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 799 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

278 
WGUS53 KIWX 182032 RRA
FFWIWX
INC053-103-182330-
/O.NEW.KIWX.FF.W.0007.160818T2032Z-160818T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
432 PM EDT THU AUG 18 2016

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN MIAMI COUNTY IN NORTH CENTRAL INDIANA...
  NORTHWESTERN GRANT COUNTY IN CENTRAL INDIANA...

* UNTIL 730 PM EDT

* AT 432 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SWEETSER...BUNKER HILL...CONVERSE...AMBOY...SANTA FE...
  WAWPECONG AND MIER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4052 8586 4057 8587 4056 8603 4063 8612
      4070 8612 4067 8594 4065 8594 4065 8582
      4064 8575 4055 8579 4053 8585

$$

NWS

2 follow-up statements

780 
WGUS73 KIWX 182155
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
555 PM EDT THU AUG 18 2016

INC053-103-182330-
/O.CON.KIWX.FF.W.0007.000000T0000Z-160818T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MIAMI IN-GRANT IN-
555 PM EDT THU AUG 18 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR
SOUTHERN MIAMI AND NORTHWESTERN GRANT COUNTIES...

AT 549 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN IN THE WARNED AREA. RADAR ESTIMATES OVER 4 INCHES OF RAIN
HAS FALLEN SINCE 2PM IN THE AMBOY AND CONVERSE AREAS. FLASH FLOODING
IS EXPECTED.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SWEETSER...BUNKER HILL...CONVERSE...AMBOY...SANTA FE...
WAWPECONG AND MIER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4052 8586 4057 8587 4056 8603 4063 8612
      4070 8612 4067 8594 4065 8594 4065 8582
      4064 8575 4055 8579 4053 8585

$$

NWS

177 
WGUS73 KIWX 182330
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
730 PM EDT THU AUG 18 2016

INC053-103-182331-
/O.EXP.KIWX.FF.W.0007.000000T0000Z-160818T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MIAMI IN-GRANT IN-
730 PM EDT THU AUG 18 2016

...THE FLASH FLOOD WARNING FOR SOUTHERN MIAMI AND NORTHWESTERN GRANT
COUNTIES WILL EXPIRE AT 730 PM EDT...

THE HEAVY RAIN HAS ENDED. FLOOD WATERS HAVE RECEDED. FLOODING IS NO
LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY
REMAINING ROAD CLOSURES.

LAT...LON 4052 8586 4057 8587 4056 8603 4063 8612
      4070 8612 4067 8594 4065 8594 4065 8582
      4064 8575 4055 8579 4053 8585

$$

NWS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 17, 8:17 PM EDT	Special Weather Statement	IWX	Huntington	43 min
Aug 17, 8:30 PM EDT	Special Weather Statement	IWX	Saint Joseph	45 min
Aug 17, 9:45 PM EDT	Special Weather Statement	IWX	Huntington	45 min
Aug 17, 10:08 PM EDT	Areal Flood Advisory	IWX	Huntington	3 hr
Aug 18, 9:51 AM EDT	Special Weather Statement	IWX	LaPorte	84 min
Aug 18, 10:44 AM EDT	Special Weather Statement	IWX	Marshall, Saint Joseph, Starke	61 min
Aug 18, 12:09 PM EDT	Special Weather Statement	IWX	Kosciusko	66 min
Aug 18, 3:21 PM EDT	Areal Flood Advisory	IWX	Pulaski	4 hr
Aug 18, 3:34 PM EDT	Special Weather Statement	IWX	Pulaski	56 min
Aug 18, 3:55 PM EDT	Special Weather Statement	IWX	Miami	50 min
Aug 18, 4:05 PM EDT	Severe Thunderstorm Warning	IWX	Pulaski, White	40 min
Aug 18, 4:32 PM EDT	Flash Flood Warning	IWX	Cass, Pulaski, White	4 hr
Aug 18, 4:36 PM EDT	Special Weather Statement	IWX	Grant	39 min
Aug 18, 5:02 PM EDT	Areal Flood Advisory	IWX	Adams, Huntington, Wells	4 hr
Aug 18, 5:18 PM EDT	Special Weather Statement	IWX	Miami	72 min
Aug 18, 5:45 PM EDT	Special Weather Statement	IWX	Cass	30 min

Nearby

Flash Flood Warnings in Indiana, 2016 Every 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.