Alert archive / Indiana / Flash Flood Warnings in 2010

Flash Flood Warning 2, NWS Indianapolis, IN

May 12, 20107 counties in Indiana

NWS Indianapolis, IN issued this flash flood warning at May 12, 2010, 8:21 AM EDT for 7 counties in Indiana. It was in force for 3 hr. 5 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 12, 2010, 8:21 AM EDT (12:21 UTC)
Expired
May 12, 2010, 11:30 AM EDT
In force
3 hr
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Flood severity
None

Counties Clay County, IN, Daviess County, IN, Greene County, IN, Knox County, IN, Martin County, IN, Owen County, IN, Sullivan County, IN

The radar

The Evansville,IN radar (KVWX), 57 km from the middle of the area, began a volume at 12:24 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 12, 8:29 AM EDTFLASH FLOODMonroe City, INHEAVY RAIN CAUSING FLOODING ON STATE ROAD 61 SOUTH OF MONROE CITY.
May 12, 8:30 AM EDTFLASH FLOOD2 Ssw Switz City, IN10 INCHES OF WATER ON STATE ROAD 67 BETWEEN SWITZ CITY AND LYONS. TIME IS APPROXIMATE.
May 12, 8:38 AM EDTFLASH FLOODWnw Bicknell, INWATER RUNNING ACROSS STREET NEAR SMALL STREAM JUST WEST OF ALEXANDER ST. OTHER STREETS IN BICKNELL REPORTED FLOODED BY CITY STREET DEPARTMENT.
May 12, 8:40 AM EDTHEAVY RAIN 1.6E Newberry, INMINOR FLOODING ALSO.
May 12, 9:30 AM EDTFLASH FLOOD1 W Odon, INWATER OVER STATE ROAD 58 BETWEEN COUNTY ROAD 700 E AND 800 E.

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 12:00Z, 0.4 hours before the alert went out and 192 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 12:00Z on 2010-05-12Temperature 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 12:00Z on 2010-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 256 square meters per square second.193958Sfc1 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
629 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
256 m²/s²
0-3 km storm-relative helicity
337 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.

055 
WGUS53 KIND 121221
FFWIND
INC021-027-055-083-101-119-153-121530-
/O.NEW.KIND.FF.W.0002.100512T1221Z-100512T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
821 AM EDT WED MAY 12 2010

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...
  MARTIN COUNTY IN SOUTHWEST INDIANA...
  SOUTHERN OWEN COUNTY IN WEST CENTRAL INDIANA...
  SOUTHWESTERN CLAY COUNTY IN WEST CENTRAL INDIANA...
  SULLIVAN COUNTY IN SOUTHWEST INDIANA...

* UNTIL 1130 AM EDT

* AT 819 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR             
  INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE        
  WARNED AREA. RAINFALL ESTIMATES OF ONE INCH HAVE BEEN DETECTED AND 
  ADDITIONAL AMOUNTS TO ONE INCH ARE POSSIBLE.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

&&

LAT...LON 3848 8772 3850 8766 3854 8768 3865 8761
      3875 8749 3889 8755 3896 8754 3918 8761
      3921 8759 3921 8670 3852 8670 3852 8684
      3849 8695 3855 8720 3853 8744 3843 8774

$$
DRT
2 follow-up statements
050 
WGUS73 KIND 121403
FFSIND

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1003 AM EDT WED MAY 12 2010

INC021-027-055-083-101-119-153-121530-
/O.CON.KIND.FF.W.0002.000000T0000Z-100512T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAY-DAVIESS-GREENE-KNOX-MARTIN-OWEN-SULLIVAN-
1003 AM EDT WED MAY 12 2010

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR DAVIESS...MARTIN...
KNOX...GREENE...SULLIVAN...SOUTHERN OWEN AND SOUTHWESTERN CLAY
COUNTIES UNTIL 1130 AM EDT...

AT 1000 AM EDT...RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY 
RAINFALL APPROACHING THE WARNED AREA. 

KNOX COUNTY EMERGENCY MANAGEMENT REPORTED FLASH FLOODING IN THE 
BICKNELL AREA AROUND 830 AM EDT.

RUNOFF WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL 
EXPERIENCE FLOODING INCLUDE...VINCENNES...BLOOMFIELD ...LINTON  
SHOALS...SULLIVAN AND WASHINGTON.

ADDITIONAL RAINFALL OF UP TO ONE INCH IS POSSIBLE WITH THE NEXT 
ROUND OF STORMS MOVING THROUGH BETWEEN 1030 AM EDT AND 1130 AM EDT. 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3848 8772 3850 8766 3854 8768 3865 8761
      3875 8749 3889 8755 3896 8754 3918 8761
      3921 8759 3921 8670 3852 8670 3852 8684
      3849 8695 3855 8720 3853 8744 3843 8774

$$
DRT
363 
WGUS73 KIND 121527
FFSIND

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1127 AM EDT WED MAY 12 2010

INC021-027-055-083-101-119-153-121542-
/O.EXP.KIND.FF.W.0002.000000T0000Z-100512T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAY-DAVIESS-GREENE-KNOX-MARTIN-OWEN-SULLIVAN-
1127 AM EDT WED MAY 12 2010

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR DAVIESS...MARTIN...
KNOX...GREENE...SULLIVAN...SOUTHERN OWEN AND SOUTHWESTERN CLAY 
COUNTIES WILL BE ALLOWED TO EXPIRE AT 1130 AM EDT...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. 
HOWEVER...A FEW LOCALIZED AREAS OF HIGH WATER MAY PERSIST THROUGH 
EARLY AFTERNOON. STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED 
OR WERE BEGINNING TO RECEDE...ENDING THE FLOOD THREAT. IF FLOODING 
HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT 
AGENCY.

LAT...LON 3848 8772 3850 8766 3854 8768 3865 8761
      3875 8749 3889 8755 3896 8754 3918 8761
      3921 8759 3921 8670 3852 8670 3852 8684
      3849 8695 3855 8720 3853 8744 3843 8774

$$

MRD/DT

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 7:33 AM EDTFlash Flood WarningINDJackson, Jennings, Lawrence4 hr
May 12, 9:08 AM EDTSpecial Weather StatementINDJackson, Lawrence37 min
May 12, 9:30 AM EDTSpecial Weather StatementINDJackson, Jennings30 min
May 12, 9:44 AM EDTFlash Flood WarningINDBartholomew, Brown, Decatur, Jackson, Jennings, Monroe3 hr
May 12, 2:38 PM EDTRiver Flood WarningINDJackson, Lawrence, Washington4 days

Nearby

Flash Flood Warnings in Indiana, 2010Every flash flood warning in 2010

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.