Alert archive / Indiana / Flash Flood Warnings in 2016

Flash Flood Warning 9, NWS Northern Indiana

September 9, 2016Marshall County, Saint Joseph County, Indiana

NWS Northern Indiana issued this flash flood warning at Sep 9, 2016, 10:25 PM EDT for Marshall County, Saint Joseph 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: Sep 9, 2016, 10:25 PM EDT (02:25 UTC)
Expired: Sep 10, 2016, 1:30 AM EDT
In force: 3 hr
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Flood severity: None

Counties Marshall County, IN, Saint Joseph County, IN

The radar

The Northern Indiana radar (KIWX), 48 km from the middle of the area, began a volume at 02:26 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
Sep 9, 10:45 PM EDT	FLASH FLOOD	La Paz, IN	A 4 BLOCK AREA HAS ABOUT 3 FEET OF WATER OVER IT. RESIDENTS ARE BEING HELPED OUT OF THEIR HOMES.
Sep 9, 11:03 PM EDT	HEAVY RAIN 5.65	2 N Plymouth, IN	STORM TOTAL.
Sep 9, 11:25 PM EDT	HEAVY RAIN 3.71	1 Ese Woodland, IN	3.70 RAINFALL SINCE 8 PM EDT.

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, 2.4 hours before the alert went out and 250 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: 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.

710 
WGUS53 KIWX 100225
FFWIWX
INC099-141-100530-
/O.NEW.KIWX.FF.W.0009.160910T0225Z-160910T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1025 PM EDT FRI SEP 9 2016

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN ST. JOSEPH COUNTY IN NORTH CENTRAL INDIANA...
  NORTH CENTRAL MARSHALL COUNTY IN NORTH CENTRAL INDIANA...

* UNTIL 130 AM EDT

* AT 1022 PM EDT...DOPPLER RADAR AND GAUGE REPORTS INDICATED
  THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA WITH
  WIDESPREAD 2 TO 3 INCHES OF RAIN FALLING SINCE 9 PM EDT. FLASH
  FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PLYMOUTH...LAKEVILLE...LA PAZ...WOODLAND...LAKE OF THE WOODS...
  WYATT...LINKVILLE AND TEEGARDEN.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4157 8609 4136 8629 4148 8642 4158 8627

$$

JBALL

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 9, 8:32 PM EDT	Special Weather Statement	IWX	Pulaski	28 min
Sep 9, 9:00 PM EDT	Special Weather Statement	IWX	Marshall	30 min
Sep 9, 9:45 PM EDT	Flash Flood Warning	IWX	Marshall, Pulaski, Starke	3 hr
Sep 9, 11:06 PM EDT	Areal Flood Warning	IWX	Elkhart, Fulton, Kosciusko, LaGrange, Marshall, Noble and 3 more	3 hr
Sep 10, 12:09 AM EDT	Areal Flood Warning	IWX	Marshall, Saint Joseph, Starke	6 hr
Sep 10, 12:38 AM EDT	Areal Flood Warning	IWX	Allen, DeKalb, Huntington, Noble, Whitley	3 hr
Sep 10, 9:06 AM EDT	Special Weather Statement	IWX	Blackford, Jay	39 min
Sep 10, 3:55 PM EDT	River Flood Warning	IWX	LaPorte, Saint Joseph, Starke	4 days

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.