Alert archive / Indiana / Flash Flood Warnings in 2010

Flash Flood Warning 21, NWS Northern Indiana

August 11, 20104 counties in Indiana

NWS Northern Indiana issued this flash flood warning at Aug 11, 2010, 9:56 AM EDT for 4 counties in Indiana. It was in force for 3 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
Aug 11, 2010, 9:56 AM EDT (13:56 UTC)
Expired
Aug 11, 2010, 12:39 PM EDT
In force
3 hr
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Flood severity
None

Counties Blackford County, IN, Grant County, IN, Jay County, IN, Wells County, IN

The radar

The Northern Indiana radar (KIWX), 104 km from the middle of the area, began a volume at 13:57 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
Aug 11, 11:39 AM EDTHEAVY RAIN 2.7Portland, INSTORM TOTAL RAINFALL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 1.9 hours before the alert went out and 170 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, Cncnati-Daytn, OH at 12:00Z on 2010-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2143 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, Cncnati-Daytn, OH at 12:00Z on 2010-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 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
2143 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
995 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
64 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.

549 
WGUS53 KIWX 111356
FFWIWX
INC009-053-075-179-111945-
/O.NEW.KIWX.FF.W.0021.100811T1356Z-100811T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
956 AM EDT WED AUG 11 2010

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN GRANT COUNTY IN CENTRAL INDIANA
  BLACKFORD COUNTY IN EAST CENTRAL INDIANA
  JAY COUNTY IN EAST CENTRAL INDIANA
  SOUTHERN WELLS COUNTY IN NORTHEAST INDIANA

* UNTIL 345 PM EDT

* AT 949 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
VERY HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED AREA. RAINFALL 
AMOUNTS UP TO TWO INCHES HAVE FALLEN FROM EARLIER THUNDERSTORMS IN 
THE WARNED AREA...WITH LOCALIZED AMOUNTS GREATER THAN THREE INCHES. 
ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE 
WARNED AREA THROUGH 11 AM EDT.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MARION... 
HARTFORD CITY...PORTLAND...ROLL...MONTPELIER...FIAT...BRYANT... 
BALBEC...NOTTINGHAM...HOME CORNER...LANDESS...LAKEWOOD...HANFIELD... 
ARCANA...VAN BUREN...MCNATTS...PETROLEUM...MOUNT ZION...KEYSTONE AND 
DILLMAN

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.

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. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

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

LAT...LON 4031 8521 4039 8521 4045 8571 4058 8565
      4067 8546 4068 8533 4059 8508 4052 8479
      4037 8480

$$
2 follow-up statements
377 
WGUS73 KIWX 111517
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1117 AM EDT WED AUG 11 2010

INC009-053-075-179-111945-
/O.CON.KIWX.FF.W.0021.000000T0000Z-100811T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WELLS IN-GRANT IN-JAY IN-BLACKFORD IN-
1117 AM EDT WED AUG 11 2010

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM EDT FOR
BLACKFORD...JAY...EASTERN GRANT AND SOUTHERN WELLS COUNTIES...

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MARION... 
HARTFORD CITY...PORTLAND...ROLL...MONTPELIER...FIAT...BRYANT... 
BALBEC...NOTTINGHAM...HOME  CORNER...LANDESS...LAKEWOOD... 
HANFIELD...ARCANA...VAN BUREN...MCNATTS...PETROLEUM...MOUNT 
ZION...KEYSTONE AND DILLMAN.

RAINFALL AMOUNTS BETWEEN TWO AND THREE INCHES HAVE FALLEN ACROSS THE 
WARNED AREA...WITH LOCALIZED AMOUNTS UP TO FOUR INCHES. HEAVY 
RAINFALL CONTINUES ACROSS THE WARNED AREA...WITH THE HEAVIEST 
FALLING ACROSS SOUTHERN JAY COUNTY...WHERE AN ADDITIONAL INCH OF 
RAINFALL IS POSSIBLE THROUGH NOON EDT. RAINFALL WILL CONTINUE TO 
DIMINISH ACROSS THE WARNED AREA THROUGH NOON EDT BEFORE ENDING EARLY 
THIS AFTERNOON.

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.

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. MOVE TO HIGHER GROUND.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

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 4031 8521 4039 8521 4045 8571 4058 8565
      4067 8546 4068 8533 4059 8508 4052 8479
      4037 8480

$$
162 
WGUS73 KIWX 111639
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1239 PM EDT WED AUG 11 2010

INC009-053-075-179-111648-
/O.CAN.KIWX.FF.W.0021.000000T0000Z-100811T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WELLS IN-GRANT IN-JAY IN-BLACKFORD IN-
1239 PM EDT WED AUG 11 2010

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR BLACKFORD...JAY...
EASTERN GRANT AND SOUTHERN WELLS COUNTIES...

WHILE PONDING OF WATER ON SOME STREETS AND LOW LYING AREAS MAY 
PERSIST INTO THIS AFTERNOON...THUNDERSTORMS THAT PROMPTED THE 
WARNING HAVE MOVED OUT OF THE AREA AND LITTLE ADDITIONAL RAINFALL IS 
EXPECTED AT THIS TIME.

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

LAT...LON 4031 8521 4039 8521 4045 8571 4058 8565
      4067 8546 4068 8533 4059 8508 4052 8479
      4037 8480

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 4:01 AM EDTHeat AdvisoryIWXAdams, Allen, Blackford, Cass, DeKalb, Fulton and 12 more6 hr
Aug 11, 6:47 AM EDTSpecial Weather StatementIWXMiami28 min
Aug 11, 7:00 AM EDTSpecial Weather StatementIWXBlackford30 min
Aug 11, 7:16 AM EDTSpecial Weather StatementIWXGrant29 min
Aug 11, 7:33 AM EDTSpecial Weather StatementIWXPulaski42 min
Aug 11, 8:14 AM EDTSpecial Weather StatementIWXWhite46 min
Aug 11, 8:43 AM EDTAreal Flood AdvisoryIWXAdams, Blackford, Grant, Jay, Wells92 min
Aug 11, 9:15 AM EDTSpecial Weather StatementIWXCass, Miami45 min
Aug 11, 9:53 AM EDTSpecial Weather StatementIWXHuntington, Wabash37 min
Aug 11, 9:56 AM EDTSpecial Weather StatementIWXGrant34 min

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.