Alert archive / Indiana / Flash Flood Warnings in 2011

Flash Flood Warning 19, NWS Indianapolis, IN

April 26, 20117 counties in Indiana

NWS Indianapolis, IN issued this flash flood warning at Apr 26, 2011, 11:35 PM EDT for 7 counties in Indiana. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 26, 2011, 11:35 PM EDT (03:35 UTC)
Expired: Apr 27, 2011, 4:40 AM EDT
In force: 5 hr
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Flood severity: None

Counties Daviess County, IN, Greene County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Sullivan County, IN

The radar

The Evansville,IN radar (KVWX), 84 km from the middle of the area, began a volume at 03:37 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.6 hours before the alert went out and 193 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1179 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 125 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.

889 
WGUS53 KIND 270335
FFWIND
INC027-055-083-093-101-105-153-270930-
/O.NEW.KIND.FF.W.0019.110427T0335Z-110427T0930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1135 PM EDT TUE APR 26 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DAVIESS COUNTY IN SOUTHWEST INDIANA...
  GREENE COUNTY IN SOUTHWEST INDIANA...
  KNOX COUNTY IN SOUTHWEST INDIANA...
  LAWRENCE COUNTY IN SOUTH CENTRAL INDIANA...
  MARTIN COUNTY IN SOUTHWEST INDIANA...
  MONROE COUNTY IN SOUTH CENTRAL INDIANA...
  SULLIVAN COUNTY IN SOUTHWEST INDIANA...

* UNTIL 530 AM EDT/

* AT 1133 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SLOW MOVING AREA OF SHOWERS AD THUNDERSTORMS WITH VERY HEAVY RAINFALL   
  ACROSS THE WARNED AREA. AN ADDITIONAL 1 TO 2 INCHES OF RAIN IS EXPECTED 
  OVER WELL SATURATED AND FLOODED AREAS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BEDFORD...BLOOMINGTON...VINCENNES...BLOOMFIELD...LINTON...SHOALS...
  SULLIVAN AND WASHINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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

&&

LAT...LON 3842 8775 3851 8766 3864 8763 3874 8751
      3896 8754 3914 8767 3926 8760 3926 8726
      3917 8725 3917 8670 3934 8671 3933 8639
      3905 8638 3899 8629 3869 8632 3868 8668
      3852 8669 3849 8697 3855 8720 3853 8744

$$

SMF

2 follow-up statements

401 
WGUS73 KIND 270719
FFSIND

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
319 AM EDT WED APR 27 2011

INC027-055-083-093-101-105-153-270930-
/O.CON.KIND.FF.W.0019.000000T0000Z-110427T0930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DAVIESS-GREENE-KNOX-LAWRENCE-MARTIN-MONROE-SULLIVAN-
319 AM EDT WED APR 27 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR DAVIESS...MARTIN...
KNOX...LAWRENCE...GREENE...SULLIVAN AND MONROE COUNTIES UNTIL 530 AM
EDT/430 AM CDT/...

AT 317 AM EDT/217 AM CDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR 
INDICATED WIDESPREAD RAIN ACROSS THE WARNED AREA. RADAR ESTIMATED 
LOCALIZED AREAS OF AN INCH HAS FALLEN ACROSS EASTERN KNOX COUNTY 
SINCE LATE LAST EVENING. ANOTHER INCH IS POSSIBLE OVERNIGHT.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
BEDFORD...BLOOMINGTON...VINCENNES...BLOOMFIELD...LINTON...SHOALS...
SULLIVAN AND WASHINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS 
AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES... AS WELL AS 
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

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

&&

LAT...LON 3842 8775 3851 8766 3864 8763 3874 8751
      3896 8754 3914 8767 3926 8760 3926 8726
      3917 8725 3917 8670 3934 8671 3933 8639
      3905 8638 3899 8629 3869 8632 3868 8668
      3852 8669 3849 8697 3855 8720 3853 8744

$$

KOCH

186 
WGUS73 KIND 270840
FFSIND

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
440 AM EDT WED APR 27 2011

INC027-055-083-093-101-105-153-270855-
/O.CAN.KIND.FF.W.0019.000000T0000Z-110427T0930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DAVIESS-GREENE-KNOX-LAWRENCE-MARTIN-MONROE-SULLIVAN-
440 AM EDT WED APR 27 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR DAVIESS...MARTIN...
KNOX...LAWRENCE...GREENE...SULLIVAN AND MONROE COUNTIES IS
CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. 

LAT...LON 3842 8775 3851 8766 3864 8763 3874 8751
      3896 8754 3914 8767 3926 8760 3926 8726
      3917 8725 3917 8670 3934 8671 3933 8639
      3905 8638 3899 8629 3869 8632 3868 8668
      3852 8669 3849 8697 3855 8720 3853 8744

$$

KOCH

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 26, 8:26 PM EDT	Severe Thunderstorm Warning	IND	Carroll	34 min
Apr 26, 9:21 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke	39 min
Apr 26, 9:34 PM EDT	Severe Thunderstorm Warning	IND	Carroll, Clinton, Howard, Tippecanoe	41 min
Apr 26, 11:42 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Knox, Sullivan	24 min
Apr 27, 12:48 AM EDT	Flash Flood Warning	IND	Bartholomew, Brown, Decatur, Jackson, Jennings	5 hr
Apr 27, 1:10 AM EDT	Severe Thunderstorm Warning	IND	Decatur, Jennings	50 min
Apr 27, 2:06 AM EDT	Special Weather Statement	IND	Clinton, Howard, Tipton	39 min
Apr 27, 5:32 AM EDT	Areal Flood Warning	IND	Bartholomew, Jackson, Jennings	30 hr
Apr 27, 7:04 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hendricks, Marion	41 min
Apr 27, 7:05 PM EDT	Tornado Warning	IND	Boone, Hendricks, Marion	40 min

Nearby

Flash Flood Warnings in Indiana, 2011 Every flash flood warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.