Alert archive / Indiana / Flash Flood Warnings in 2011

Flash Flood Warning 21, NWS Indianapolis, IN

May 7, 20116 counties in Indiana

NWS Indianapolis, IN issued this flash flood warning at May 7, 2011, 8:55 PM EDT for 6 counties in Indiana. It was in force for 6 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
May 7, 2011, 8:55 PM EDT (00:55 UTC)
Expired
May 8, 2011, 3:00 AM EDT
In force
6 hr
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Flood severity
None

Counties Clay County, IN, Greene County, IN, Owen County, IN, Putnam County, IN, Sullivan County, IN, Vigo County, IN

The radar

The Indianapolis radar (KIND), 101 km from the middle of the area, began a volume at 00:54 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
May 7, 9:34 PM EDTFLASH FLOOD2 Ssw Pimento, INTHE INTERSECTION OF US 41 AND STATE ROAD 246 IN LINTON HAS NINE INCHES OF WATER OVER THE ROAD.
May 7, 9:35 PM EDTFLASH FLOODTerre Haute, INFLASH FLOODING IN CENTRAL TERRE HAUTE...THE INTERSECTION OF THIRD ST AND POPLAR ST IS FLOODED.

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, 0.9 hours before the alert went out and 142 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 2011-05-08Temperature 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 2011-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.1939587897Sfc1 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
3086 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
113 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.

408 
WGUS53 KIND 080055
FFWIND
INC021-055-119-133-153-167-080700-
/O.NEW.KIND.FF.W.0021.110508T0055Z-110508T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
855 PM EDT SAT MAY 7 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLAY COUNTY IN WEST CENTRAL INDIANA...
  GREENE COUNTY IN SOUTHWEST INDIANA...
  SOUTHWESTERN PUTNAM COUNTY IN WEST CENTRAL INDIANA...
  SULLIVAN COUNTY IN SOUTHWEST INDIANA...
  VIGO COUNTY IN WEST CENTRAL INDIANA...
  WESTERN OWEN COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 300 AM EDT SUNDAY

* AT 854 PM EDT...THE DOPPLER WEATHER RADAR REPORTED SLOW MOVING
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...TERRE
  HAUTE...BLOOMFIELD...BRAZIL...LINTON AND SULLIVAN.

THIS WARNING INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 0 AND 35.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

&&

LAT...LON 3936 8754 3961 8754 3961 8695 3895 8672
      3898 8754 3935 8756

$$

SMF
3 follow-up statements
423 
WGUS73 KIND 080141
FFSIND

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
941 PM EDT SAT MAY 7 2011

INC021-055-119-133-153-167-080700-
/O.CON.KIND.FF.W.0021.000000T0000Z-110508T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAY-GREENE-OWEN-PUTNAM-SULLIVAN-VIGO-
941 PM EDT SAT MAY 7 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR GREENE...SULLIVAN...
WESTERN OWEN...CLAY...VIGO AND SOUTHWESTERN PUTNAM COUNTIES UNTIL 300
AM EDT...

AT 937 PM EDT...WEATHER SPOTTERS REPORTED THUNDERSTORMS WITH VERY 
HEAVY RAINFALL ACROSS THE WARNED AREA. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
TERRE HAUTE...BLOOMFIELD...BRAZIL...LINTON AND SULLIVAN.

THE INTERSECTION OF THIRD STREET AND POPLAR STREET IN TERRE HAUTE IS 
FLOODED. THE INTERSECTION OF US 41 AND STATE ROAD 246 HAS 9 INCHES 
OF WATER OVER THE ROAD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 3936 8754 3961 8754 3961 8695 3895 8672
      3898 8754 3935 8756

$$

50
465 
WGUS73 KIND 080544
FFSIND

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
144 AM EDT SUN MAY 8 2011

INC021-055-119-133-153-167-080700-
/O.CON.KIND.FF.W.0021.000000T0000Z-110508T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAY-GREENE-OWEN-PUTNAM-SULLIVAN-VIGO-
144 AM EDT SUN MAY 8 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR GREENE...SULLIVAN...
WESTERN OWEN...CLAY...VIGO AND SOUTHWESTERN PUTNAM COUNTIES UNTIL 300
AM EDT...

AT 143 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUING ACROSS PORTIONS OF 
THE WARNED AREA. ADDITIONAL RAINFALL AMOUNTS OVER A HALF INCH ARE 
STILL POSSIBLE.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
TERRE HAUTE...BLOOMFIELD...BRAZIL...LINTON AND SULLIVAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

&&

LAT...LON 3936 8754 3961 8754 3961 8695 3895 8672
      3898 8754 3935 8756

$$

50
069 
WGUS73 KIND 080701
FFSIND

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
301 AM EDT SUN MAY 8 2011

INC021-055-119-133-153-167-080715-
/O.EXP.KIND.FF.W.0021.000000T0000Z-110508T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAY-GREENE-OWEN-PUTNAM-SULLIVAN-VIGO-
301 AM EDT SUN MAY 8 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR GREENE...
SULLIVAN...WESTERN OWEN...CLAY...VIGO AND SOUTHWESTERN PUTNAM
COUNTIES HAS BEEN ALLOWED TO EXPIRE...

LOCAL LAW ENFORCEMENT REPORTS NO CURRENT FLOODING ACROSS THE AREA. 

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. IF 
FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW 
ENFORCEMENT AGENCY.

LAT...LON 3936 8754 3961 8754 3961 8695 3895 8672
      3898 8754 3935 8756

$$

50

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 8:15 PM EDTSevere Thunderstorm WarningINDClay, Parke, Putnam, Vigo45 min
May 7, 8:23 PM EDTTornado WarningINDClay, Sullivan, Vigo52 min
May 7, 8:33 PM EDTAreal Flood AdvisoryINDClay, Fountain, Parke, Vermillion, Vigo5 hr
May 7, 9:02 PM EDTTornado WarningINDClay, Greene, Sullivan, Vigo43 min
May 7, 9:10 PM EDTTornado WarningINDSullivan, Vigo20 min
May 7, 9:26 PM EDTSevere Thunderstorm WarningINDSullivan, Vigo20 min
May 7, 9:37 PM EDTTornado WarningINDDaviess, Greene, Martin38 min
May 7, 10:12 PM EDTTornado WarningINDGreene, Lawrence, Martin48 min
May 7, 10:45 PM EDTFlash Flood WarningINDDaviess, Greene, Knox, Lawrence, Martin6 hr

Nearby

Flash Flood Warnings in Indiana, 2011Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.