Alert archive / Indiana / Flash Flood Warnings in 2016

Flash Flood Warning 8, NWS Northern Indiana

September 9, 2016Marshall County, Pulaski County, Starke County, Indiana

NWS Northern Indiana issued this flash flood warning at Sep 9, 2016, 9:45 PM EDT for Marshall County, Pulaski County, Starke County, Indiana. It was in force for 3 hr. 2 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
Sep 9, 2016, 9:45 PM EDT (01:45 UTC)
Expired
Sep 10, 2016, 12:45 AM EDT
In force
3 hr
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Flood severity
None

Counties Marshall County, IN, Pulaski County, IN, Starke County, IN

The radar

The Northern Indiana radar (KIWX), 81 km from the middle of the area, began a volume at 01:48 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
Sep 9, 10:59 PM EDTFLASH FLOODPlymouth, INNUMEROUS STREETS FLOODED IN THE CITY OF PLYMOUTH. CARS STRANDED AND SOME ARE FLOATING.
Sep 9, 11:56 PM EDTFLASH FLOOD1 Wsw Plymouth, INROAD CLOSED AND HIGH WATER SIGNS GOING UP IN CITY OF PLYMOUTH. HIGH WATER AT OAK RD AND W. JEFFERSON.

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, 1.8 hours before the alert went out and 203 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 2016-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 237 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 2016-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
237 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
606 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

714 
WGUS53 KIWX 100145
FFWIWX
INC099-131-149-100445-
/O.NEW.KIWX.FF.W.0008.160910T0145Z-160910T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
945 PM EDT FRI SEP 9 2016

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN STARKE COUNTY IN NORTHWESTERN INDIANA...
  WESTERN PULASKI COUNTY IN NORTHWESTERN INDIANA...
  NORTHWESTERN MARSHALL COUNTY IN NORTH CENTRAL INDIANA...

* UNTIL 1245 AM EDT/1145 PM CDT/

* AT 943 PM EDT/843 PM CDT/...DOPPLER RADAR INDICATED SEVERAL ROUNDS
  OF THUNDERSTORMS HAVE PRODUCED HEAVY RAIN ACROSS THE WARNED
  AREA.RADAR ESTIMATES THAT LOCALLY 2 TO 3 INCHES OF RAIN HAS FALLEN
  ACROSS PARTS OF NORTHWESTERN MARSHALL COUNTY AS WELL AS WESTERN
  PULASKI COUNTY. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY AS
  ADDITIONAL RAINFALL MOVES OVER THE SAME AREAS...ESPECIALLY
  NORTHWESTERN MARSHALL COUNTY. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PLYMOUTH...KNOX...WALKERTON...FRANCESVILLE...HAMLET...
  MEDARYVILLE...KOONTZ LAKE...OAK GROVE...RIPLEY...OBER...DENHAM...
  WINONA...ORA...GROVERTOWN...DONALDSON...TOTO...TYNER...
  BASS LAKE AND BEARDSTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW LYING
SPOTS.

&&

LAT...LON 4104 8693 4143 8654 4143 8647 4148 8647
      4148 8642 4136 8629 4091 8692 4091 8693

$$

FISHER

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 9, 8:32 PM EDTSpecial Weather StatementIWXPulaski28 min
Sep 9, 9:00 PM EDTSpecial Weather StatementIWXMarshall30 min
Sep 9, 10:25 PM EDTFlash Flood WarningIWXMarshall, Saint Joseph3 hr
Sep 9, 11:06 PM EDTAreal Flood WarningIWXElkhart, Fulton, Kosciusko, LaGrange, Marshall, Noble and 3 more3 hr
Sep 10, 12:09 AM EDTAreal Flood WarningIWXMarshall, Saint Joseph, Starke6 hr
Sep 10, 12:38 AM EDTAreal Flood WarningIWXAllen, DeKalb, Huntington, Noble, Whitley3 hr
Sep 10, 9:06 AM EDTSpecial Weather StatementIWXBlackford, Jay39 min
Sep 10, 3:55 PM EDTRiver Flood WarningIWXLaPorte, Saint Joseph, Starke4 days

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.