Alert archive / Indiana / Flash Flood Warnings in 2015

Flash Flood Warning 13, NWS Northern Indiana

July 18, 2015LaPorte County, Indiana

NWS Northern Indiana issued this flash flood warning at Jul 18, 2015, 5:19 PM CDT for LaPorte 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: Jul 18, 2015, 5:19 PM CDT (22:19 UTC)
Expired: Jul 18, 2015, 8:15 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), 101 km from the middle of the area, began a volume at 22:19 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
Jul 18, 6:00 PM CDT	HEAVY RAIN 2.25	5 N La Porte, IN	STORM TOTAL

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, 10.3 hours before the alert went out and 228 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: 3191 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 902 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.2

Open this sounding in Storm Lab

The text

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

841 
WGUS53 KIWX 182219
FFWIWX
INC091-190115-
/O.NEW.KIWX.FF.W.0013.150718T2219Z-150719T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
519 PM CDT SAT JUL 18 2015

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA  HAS ISSUED A

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

* UNTIL 815 PM CDT

* AT 516 PM CDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE 
  WARNED AREA. BETWEEN ONE INCH AND ONE AND A HALF INCHES OF RAIN 
  HAS ALREADY FALLEN WITH THESE THUNDERSTORMS THROUGH 516 PM CDT. 
  SHOWERS AND THUNDERSTORMS MAY PRODUCE 1 TO 2 INCHES OF ADDITIONAL 
  RAINFALL THROUGH 700 PM CDT THIS EVENING. FLASH FLOODING IS 
  EXPECTED.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MICHIGAN CITY...LA PORTE...WESTVILLE...TRAIL CREEK...LONG BEACH...
  POTTAWATTAMIE PARK...MICHIANA SHORES...WATERFORD...PINHOOK...
  POTTAWATTOMIE PARK...PINOLA...ROLLING PRARIE...HESSTON...BYRON...
  OTIS...SPRINGVILLE AND HUDSON LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4171 8693 4172 8692 4172 8691 4173 8690
      4174 8686 4176 8682 4176 8654 4158 8652
      4156 8693

$$

MARSILI

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 8:16 PM CDT	Special Weather Statement	IWX	LaPorte	29 min
Jul 17, 8:29 PM CDT	Special Weather Statement	IWX	Saint Joseph	31 min
Jul 18, 10:54 AM CDT	Special Weather Statement	IWX	Elkhart, LaGrange	36 min
Jul 18, 11:28 AM CDT	Special Weather Statement	IWX	Steuben	32 min
Jul 18, 11:33 AM CDT	Special Weather Statement	IWX	Noble	27 min
Jul 18, 12:05 PM CDT	Special Weather Statement	IWX	Steuben	25 min
Jul 18, 12:43 PM CDT	Special Weather Statement	IWX	Allen	32 min
Jul 18, 1:14 PM CDT	Special Weather Statement	IWX	Allen	31 min
Jul 18, 4:19 PM CDT	Special Marine Warning	IWX		41 min
Jul 18, 4:22 PM CDT	Special Weather Statement	IWX	LaPorte	53 min
Jul 18, 4:33 PM CDT	Severe Thunderstorm Warning	IWX	LaPorte	42 min
Jul 18, 4:45 PM CDT	Special Weather Statement	IWX	Starke	45 min
Jul 18, 4:53 PM CDT	Special Weather Statement	IWX	Marshall, Starke	37 min
Jul 18, 5:21 PM CDT	Special Weather Statement	IWX	Whitley	24 min
Jul 18, 5:22 PM CDT	Special Weather Statement	IWX	Saint Joseph	23 min
Jul 18, 5:27 PM CDT	Severe Thunderstorm Warning	IWX	LaPorte	48 min
Jul 18, 5:34 PM CDT	Special Weather Statement	IWX	Marshall	41 min
Jul 18, 5:43 PM CDT	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko, Marshall, Saint Joseph	47 min
Jul 18, 5:47 PM CDT	Severe Thunderstorm Warning	IWX	Noble, Whitley	23 min
Jul 18, 5:56 PM CDT	Severe Thunderstorm Warning	IWX	Fulton, Kosciusko, Marshall	64 min
Jul 18, 6:13 PM CDT	Flash Flood Warning	IWX	Kosciusko, Marshall	4 hr
Jul 18, 6:14 PM CDT	Severe Thunderstorm Warning	IWX	Elkhart, LaGrange	46 min
Jul 18, 6:22 PM CDT	Severe Thunderstorm Warning	IWX	Kosciusko, Noble, Whitley	53 min
Jul 18, 6:29 PM CDT	Special Weather Statement	IWX	LaGrange, Noble, Steuben	31 min
Jul 18, 6:33 PM CDT	Flash Flood Warning	IWX	Kosciusko, Noble, Whitley	4 hr
Jul 18, 6:46 PM CDT	Special Weather Statement	IWX	Huntington	29 min
Jul 18, 6:47 PM CDT	Special Weather Statement	IWX	Wells	43 min
Jul 18, 6:57 PM CDT	Severe Thunderstorm Warning	IWX	LaGrange, Steuben	63 min
Jul 18, 6:57 PM CDT	Severe Thunderstorm Warning	IWX	Allen, DeKalb, Noble, Whitley	63 min

Nearby

Flash Flood Warnings in Indiana, 2015 Every flash flood warning in 2015

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.