Alert archive / Indiana / Flash Flood Warnings in 2012

Flash Flood Warning 5, NWS Northern Indiana

July 18, 2012LaPorte County, Saint Joseph County, Indiana

NWS Northern Indiana issued this flash flood warning at Jul 18, 2012, 11:29 PM CDT for LaPorte County, Saint Joseph 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
Jul 18, 2012, 11:29 PM CDT (04:29 UTC)
Expired
Jul 19, 2012, 2:30 AM CDT
In force
3 hr
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Flood severity
None

Counties LaPorte County, IN, Saint Joseph County, IN

The radar

The Northern Indiana radar (KIWX), 82 km from the middle of the area, began a volume at 04:33 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

TimeReportWhereRemark
Jul 18, 11:55 PM CDTHEAVY RAIN 1.422 Sw La Porte, INMEASURED IN PAST 45 MINUTES
Jul 19, 12:00 AM CDTFLASH FLOODWalkerton, INWATER RUNNING OVER ROADS

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, 4.5 hours before the alert went out and 223 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 2012-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 904 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 2012-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
904 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
2326 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
84 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.

667 
WGUS53 KIWX 190429
FFWIWX
INC091-141-190730-
/O.NEW.KIWX.FF.W.0005.120719T0429Z-120719T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1129 PM CDT WED JUL 18 2012

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN ST. JOSEPH COUNTY IN NORTH CENTRAL INDIANA
  LA PORTE COUNTY IN NORTHWEST INDIANA

* UNTIL 230 AM CDT/330 AM EDT/

* AT 1124 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM NEAR PINOLA...OR 4 MILES      
  NORTHWEST OF LA PORTE...MOVING EAST AT 30 MPH. REPORTS OF VERY 
  HEAVY RAINFALL HAS CAUSED FLOODING OVER I-94 IN PORTER COUNTY.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SPRINGVILLE...KINGSBURY...KINGSFORD HEIGHTS...TRACY...HESSTON...
  SOUTH CENTER...BYRON...SALEM HEIGHTS...ROLLING PRARIE...
  STILLWELL...FISH LAKE...HUDSON LAKE...NEW CARLISLE...WALKERTON...
  NORTH LIBERTY...CRUMSTOWN...CHAIN-O-LAKES...LYDICK...LAKEVILLE...
  SOUTH BEND AND ROSELAND

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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

&&

LAT...LON 4177 8684 4176 8624 4149 8626 4149 8647
      4144 8648 4144 8665 4139 8671 4133 8674
      4129 8679 4125 8692 4172 8694

$$
2 follow-up statements
941 
WGUS73 KIWX 190556
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1256 AM CDT THU JUL 19 2012

INC091-141-190730-
/O.CON.KIWX.FF.W.0005.000000T0000Z-120719T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ST. JOSEPH IN-LA PORTE IN-
1256 AM CDT THU JUL 19 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM CDT/330 AM
EDT/ FOR LA PORTE AND WESTERN ST. JOSEPH COUNTIES...

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WATERFORD...
SPRINGVILLE...ROLLING PRARIE...HUDSON LAKE...HESSTON...BYRON...TRAIL
CREEK...POTTAWATTOMIE PARK...MICHIGAN CITY...MICHIANA SHORES...LONG
BEACH...LA PORTE...LYDICK...CRUMSTOWN...CHAIN-O-LAKES...SOUTH BEND...
ROSELAND AND NEW CARLISLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY 
YOUR REPORT TO THE NATIONAL WEATHER SERVICE...POST YOUR INFORMATION 
TO THE NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR USE TWITTER AND 
APPEND THE HASH TAG N W S I W X. 

&&

LAT...LON 4177 8684 4176 8624 4149 8626 4149 8647
      4144 8648 4144 8665 4139 8671 4133 8674
      4129 8679 4125 8692 4172 8694

$$
001 
WGUS73 KIWX 190726
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
226 AM CDT THU JUL 19 2012

INC091-141-190733-
/O.EXP.KIWX.FF.W.0005.000000T0000Z-120719T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ST. JOSEPH IN-LA PORTE IN-
226 AM CDT THU JUL 19 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 230 AM CDT/330 AM EDT/ FOR
LA PORTE AND WESTERN ST. JOSEPH COUNTIES...

FLOODING FROM EARLIER RAINFALL HAS ENDED ACROSS THE WARNING AREA. 
ADDITIONAL RAINFALL WILL MOVE EAST ACROSS THE WARNING AREA OVER THE 
NEXT FEW HOURS...WHICH MAY CAUSE LOCALIZED MINOR FLOODING. STAY 
TUNED FOR POSSIBLE FLOOD WARNINGS OR ADVISORIES.

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

IF YOU HAVE FLOODING TO REPORT...YOU CAN CALL YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4177 8684 4176 8624 4149 8626 4149 8647
      4144 8648 4144 8665 4139 8671 4133 8674
      4129 8679 4125 8692 4172 8694

$$

NG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 8:03 PM CDTSpecial Weather StatementIWXSteuben57 min
Jul 18, 9:50 PM CDTSpecial Marine WarningIWX115 min
Jul 18, 10:43 PM CDTSevere Thunderstorm WarningIWXLaPorte, Saint Joseph62 min
Jul 18, 11:26 PM CDTSevere Thunderstorm WarningIWXLaPorte, Marshall, Saint Joseph, Starke64 min
Jul 19, 12:03 AM CDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, Marshall, Saint Joseph57 min
Jul 19, 12:12 AM CDTAreal Flood AdvisoryIWXMarshall, Saint Joseph, Starke3 hr
Jul 19, 12:45 AM CDTSpecial Weather StatementIWXLaGrange, Noble, Whitley60 min
Jul 19, 1:33 AM CDTSpecial Weather StatementIWXDeKalb, LaGrange, Noble, Steuben57 min
Jul 19, 3:04 AM CDTSpecial Weather StatementIWXElkhart, Saint Joseph41 min
Jul 19, 4:19 AM CDTAreal Flood AdvisoryIWXElkhart, Fulton, Kosciusko, LaGrange, Marshall, Noble and 2 more3 hr
Jul 19, 4:35 AM CDTFlash Flood WarningIWXAllen, DeKalb, Huntington, Kosciusko, LaGrange, Noble and 4 more115 min
Jul 19, 4:53 AM CDTFlash Flood WarningIWXAllen, DeKalb3 hr
Jul 19, 5:22 AM CDTFlash Flood WarningIWXElkhart, LaGrange, LaPorte, Noble, Saint Joseph3 hr
Jul 19, 5:44 AM CDTSpecial Weather StatementIWXHuntington, Kosciusko, Miami, Wabash, Whitley61 min
Jul 19, 2:28 PM CDTSmall Craft AdvisoryIWX31 hr
Jul 19, 5:03 PM CDTRip Current StatementIWX34 hr
Jul 19, 6:16 PM CDTSpecial Weather StatementIWXMiami44 min
Jul 19, 6:19 PM CDTSpecial Weather StatementIWXBlackford41 min

Nearby

Flash Flood Warnings in Indiana, 2012Every flash flood warning in 2012

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.