Alert archive / Indiana / Flash Flood Warnings in 2018

Flash Flood Warning 4, NWS Louisville, KY

February 24, 2018Crawford County, Dubois County, Orange County, Indiana

NWS Louisville, KY issued this flash flood warning at Feb 24, 2018, 7:35 PM EST for Crawford County, Dubois County, Orange County, Indiana. It was in force for 4 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
Feb 24, 2018, 7:35 PM EST (00:35 UTC)
Expired
Feb 24, 2018, 11:30 PM EST
In force
4 hr
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Flood severity
None

Counties Crawford County, IN, Dubois County, IN, Orange County, IN

The radar

The Evansville,IN radar (KVWX), 82 km from the middle of the area, began a volume at 00:36 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
Feb 24, 9:45 PM ESTFLASH FLOODHuntingburg, INDELAYED REPORT. NUMEROUS ROADS CLOSED DUE TO HIGH WATER. 32 ROADS CLOSED IN DUBOIS COUNTY AT ONE TIME.

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, 0.6 hours before the alert went out and 241 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 2018-02-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2018-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 267 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
594 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
267 m²/s²
0-3 km storm-relative helicity
388 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

316 
WGUS53 KLMK 250035
FFWLMK
INC025-037-117-250430-
/O.NEW.KLMK.FF.W.0004.180225T0035Z-180225T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Louisville KY
735 PM EST SAT FEB 24 2018

The National Weather Service in Louisville has issued a

* Flash Flood Warning for...
  Dubois County in south central Indiana...
  Northwestern Crawford County in south central Indiana...
  Orange County in south central Indiana...

* Until 1130 PM EST/1030 PM CST/

* At 734 PM EST/634 PM CST/, Doppler radar indicated thunderstorms
  producing heavy rain across the warned area. Up to two inches of
  rain have already fallen. Flash flooding is expected to begin 
  shortly. Law enforcement report some roads already closed due to 
  high water.

* Some locations that will experience flooding include...
  Jasper, Paoli, English, Huntingburg, Ferdinand, Orleans, French
  Lick, Orangeville, Holland and West Baden Springs.

Additional rainfall amounts of 1 to locally 2 inches are possible in 
the warned area as another line of storms moves through the area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3851 8707 3850 8706 3851 8700 3849 8695
      3851 8693 3850 8688 3853 8683 3853 8668
      3869 8668 3869 8644 3868 8644 3827 8645
      3825 8679 3820 8680 3820 8707

$$

ZT
2 follow-up statements
385 
WGUS73 KLMK 250140
FFSLMK

Flash Flood Statement
National Weather Service Louisville KY
840 PM EST SAT FEB 24 2018

INC025-037-117-250430-
/O.CON.KLMK.FF.W.0004.000000T0000Z-180225T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dubois IN-Crawford IN-Orange IN-
840 PM EST SAT FEB 24 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM EST/1030
PM CST/ FOR DUBOIS...NORTHWESTERN CRAWFORD AND ORANGE COUNTIES...

At 839 PM EST/739 PM CST/, Doppler radar indicated thunderstorms 
producing intense rainfall across Dubois County.  This band of 
intense rainfall will move eastward across Dubois county and into 
northwest Crawford and into southwest Orange county in the next hour.

Some locations that will experience flooding include...
Jasper, Paoli, English, Huntingburg, Ferdinand, Orleans, French Lick,
Orangeville, Holland and West Baden Springs.

Additional rainfall amounts of 2 to 3 inches will be possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3851 8707 3850 8706 3851 8700 3849 8695
      3851 8693 3850 8688 3853 8683 3853 8668
      3869 8668 3869 8644 3868 8644 3827 8645
      3825 8679 3820 8680 3820 8707

$$

MJ
822 
WGUS73 KLMK 250427
FFSLMK

Flash Flood Statement
National Weather Service Louisville KY
1127 PM EST SAT FEB 24 2018

INC025-037-117-250435-
/O.EXP.KLMK.FF.W.0004.000000T0000Z-180225T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dubois IN-Crawford IN-Orange IN-
1127 PM EST SAT FEB 24 2018

...THE FLASH FLOOD WARNING FOR DUBOIS...NORTHWESTERN CRAWFORD AND
ORANGE COUNTIES WILL EXPIRE AT 1130 PM EST/1030 PM CST/...

The heavy rain has ended.  However extensive runoff is expected to 
occur throughout the night due to the excessive rainfall.  An areal 
flood warning remains in effect through 600 AM Sunday morning.

LAT...LON 3851 8707 3850 8706 3851 8700 3849 8695
      3851 8693 3850 8688 3853 8683 3853 8668
      3869 8668 3869 8644 3868 8644 3827 8645
      3825 8679 3820 8680 3820 8707

$$

MJ

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 24, 8:27 PM ESTSpecial Weather StatementLMKDubois33 min
Feb 24, 8:35 PM ESTFlash Flood WarningLMKClark, Crawford, Floyd, Harrison, Orange, Perry and 2 more5 hr
Feb 24, 8:59 PM ESTSpecial Weather StatementLMKCrawford, Orange46 min
Feb 24, 9:15 PM ESTSpecial Weather StatementLMKPerry45 min
Feb 24, 9:32 PM ESTFlash Flood WarningLMKPerry4 hr
Feb 24, 9:45 PM ESTFlash Flood Warning EmergencyLMKClark, Floyd3 hr
Feb 24, 10:21 PM ESTSpecial Weather StatementLMKHarrison24 min
Feb 24, 10:26 PM ESTSevere Thunderstorm WarningLMKFloyd, Harrison34 min
Feb 24, 10:59 PM ESTFlash Flood WarningLMKClark, Jefferson3 hr
Feb 25, 12:47 AM ESTAreal Flood WarningLMKClark, Floyd, Harrison18 hr
Feb 25, 1:01 AM ESTAreal Flood WarningLMKClark, Jefferson, Scott6 hr
Feb 25, 6:15 AM ESTAreal Flood WarningLMKClark, Crawford, Dubois, Harrison, Orange, Perry and 1 more12 hr
Feb 25, 7:00 AM ESTAreal Flood WarningLMKClark, Jefferson, Scott12 hr
Feb 25, 5:39 PM ESTAreal Flood WarningLMKClark, Crawford, Dubois, Floyd, Harrison, Orange and 2 more24 hr

Nearby

Flash Flood Warnings in Indiana, 2018Every flash flood warning in 2018

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.