Alert archive / Indiana / Flash Flood Warnings in 2009

Flash Flood Warning 13, NWS Northern Indiana

August 17, 20094 counties in Indiana

NWS Northern Indiana issued this flash flood warning at Aug 17, 2009, 9:20 AM EDT for 4 counties in Indiana. It was in force for 85 min. 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 17, 2009, 9:20 AM EDT (13:20 UTC)
Expired
Aug 17, 2009, 10:45 AM EDT
In force
85 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Flood severity
None

Counties Elkhart County, IN, Kosciusko County, IN, LaGrange County, IN, Noble County, IN

The radar

The Northern Indiana radar (KIWX), 28 km from the middle of the area, began a volume at 13:21 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
Aug 17, 10:23 AM EDTHEAVY RAIN 3.62Syracuse, INRAINFALL SINCE MIDNIGHT

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

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 1.3 hours before the alert went out and 237 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, Detroit, MI at 12:00Z on 2009-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 115 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, Detroit, MI at 12:00Z on 2009-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 square meters per square second.1939Sfc1 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
115 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
1116 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KIWX 171320
FFWIWX
INC039-085-087-113-171445-
/O.NEW.KIWX.FF.W.0013.090817T1320Z-090817T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
920 AM EDT MON AUG 17 2009

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ELKHART COUNTY IN NORTH CENTRAL INDIANA
  NORTHERN KOSCIUSKO COUNTY IN NORTH CENTRAL INDIANA
  SOUTHWESTERN LAGRANGE COUNTY IN NORTHEAST INDIANA
  NORTHWESTERN NOBLE COUNTY IN NORTHEAST INDIANA

* UNTIL 1045 AM EDT

* AT 917 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  EXTREMELY HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED AREA. A   
  NATIONAL WEATHER SERVICE EMPLOYEE REPORTED OVER 4 INCHES OF RAIN   
  NEAR NORTH WEBSTER AND SOME LOW LYING FLOODING HAS BEEN REPORTED   
  IN ELKHART COUNTY.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  HONEYVILLE...JIMTOWN...SIMONTON LAKE...MIDDLEBURY...GOSHEN...      
  ELKHART...DUNLAP...SYRACUSE...LIGONIER...MILLERSBURG AND BRISTOL

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
NORTHERN INDIANA.

LAT...LON 4171 8571 4140 8545 4133 8600 4145 8597
      4152 8607 4176 8606 4177 8589

$$


BJS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 8:44 PM EDTSpecial Weather StatementIWXStarke61 min
Aug 17, 12:19 AM EDTSpecial Weather StatementIWXKosciusko26 min
Aug 17, 4:55 AM EDTSpecial Weather StatementIWXKosciusko35 min
Aug 17, 5:56 AM EDTSpecial Weather StatementIWXKosciusko34 min
Aug 17, 6:03 AM EDTAreal Flood AdvisoryIWXFulton, Kosciusko, Marshall117 min
Aug 17, 7:25 AM EDTAreal Flood AdvisoryIWXKosciusko, Miami, Wabash2 hr
Aug 17, 7:42 AM EDTFlash Flood WarningIWXKosciusko, Miami, Wabash63 min
Aug 17, 8:46 AM EDTAreal Flood AdvisoryIWXKosciusko, Noble, Whitley89 min
Aug 17, 9:02 AM EDTAreal Flood AdvisoryIWXElkhart118 min
Aug 17, 9:29 AM EDTAreal Flood AdvisoryIWXElkhart, LaPorte, Saint Joseph91 min
Aug 17, 10:55 AM EDTAreal Flood AdvisoryIWXElkhart, Kosciusko, LaGrange, Noble2 hr
Aug 17, 12:04 PM EDTFlash Flood WarningIWXElkhart, Kosciusko, Noble116 min
Aug 17, 1:14 PM EDTFlash Flood WarningIWXAllen3 hr
Aug 17, 2:43 PM EDTAreal Flood AdvisoryIWXKosciusko, Noble, Whitley2 hr
Aug 17, 3:14 PM EDTSpecial Weather StatementIWXGrant31 min
Aug 17, 4:09 PM EDTSevere Thunderstorm WarningIWXAllen28 min
Aug 17, 4:29 PM EDTSpecial Weather StatementIWXElkhart, Saint Joseph46 min
Aug 17, 5:01 PM EDTSpecial Weather StatementIWXCass44 min
Aug 17, 5:09 PM EDTSpecial Weather StatementIWXLaGrange36 min
Aug 17, 5:20 PM EDTSpecial Weather StatementIWXPulaski25 min
Aug 17, 5:30 PM EDTSevere Thunderstorm WarningIWXFulton35 min
Aug 17, 6:01 PM EDTSpecial Weather StatementIWXKosciusko44 min
Aug 17, 6:16 PM EDTSpecial Weather StatementIWXSteuben59 min
Aug 17, 6:17 PM EDTSpecial Weather StatementIWXKosciusko28 min

Nearby

Flash Flood Warnings in Indiana, 2009Every flash flood warning in 2009

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.