Alert archive / Indiana / Flash Flood Warnings in 2012

Flash Flood Warning 3, NWS Northern Indiana

May 7, 20125 counties in Indiana

NWS Northern Indiana issued this flash flood warning at May 7, 2012, 5:34 AM EDT for 5 counties in Indiana. It was in force for 4 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
May 7, 2012, 5:34 AM EDT (09:34 UTC)
Expired
May 7, 2012, 9:30 AM EDT
In force
4 hr
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Flood severity
None

Counties DeKalb County, IN, Elkhart County, IN, LaGrange County, IN, Noble County, IN, Steuben County, IN

The radar

The Northern Indiana radar (KIWX), 29 km from the middle of the area, began a volume at 09:37 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

Detroit, MI (KDTX), launched 00:00Z, 9.6 hours before the alert went out and 213 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, Detroit, MI at 00:00Z on 2012-05-07Temperature 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, Detroit, MI at 00:00Z on 2012-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.19395878Sfc1 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
2584 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
235 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.

065 
WGUS53 KIWX 070934
FFWIWX
INC033-039-087-113-151-071330-
/O.NEW.KIWX.FF.W.0003.120507T0934Z-120507T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
534 AM EDT MON MAY 7 2012

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN ELKHART COUNTY IN NORTH CENTRAL INDIANA
  NORTHWESTERN DE KALB COUNTY IN NORTHEAST INDIANA
  SOUTHERN LAGRANGE COUNTY IN NORTHEAST INDIANA
  NORTHERN NOBLE COUNTY IN NORTHEAST INDIANA
  SOUTHWESTERN STEUBEN COUNTY IN NORTHEAST INDIANA

* UNTIL 930 AM EDT

* AT 523 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THAT THUNDERSTORMS HAD PRODUCED UP TO 3 INCHES OF RAIN OVER        
  PORTIONS OF NORTHEAST INDIANA EARLY THIS MORNING. MORE             
  THUNDERSTORMS WILL MOVE ACROSS THE WARNING AREA THROUGH 700 AM     
  EDT... WITH ADDITIONAL RAINFALL UP TO AN INCH POSSIBLE. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SEDAN...
  MOORE...FAIRFIELD CENTER...ASHLEY...STEUBENVILLE...HUDSON...
  HELMER...WATERLOO...HAMILTON...CORUNNA...LISBON...COSPERVILLE...
  BRIMFIELD...WOLCOTTVILLE...EDDY...ROME CITY...LIGONIER...          
  KENDALLVILLE......WOODRUFF...STROH...INDIANOLA...ELMIRA...         
  TOPEKA...BENTON AND MILLERSBURG

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. 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 4138 8491 4143 8566 4145 8566 4145 8581
      4154 8579 4163 8490

$$
2 follow-up statements
339 
WGUS73 KIWX 071137
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
737 AM EDT MON MAY 7 2012

INC033-039-087-113-151-071330-
/O.CON.KIWX.FF.W.0003.000000T0000Z-120507T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ELKHART IN-LAGRANGE IN-STEUBEN IN-NOBLE IN-DE KALB IN-
737 AM EDT MON MAY 7 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 AM EDT FOR
NORTHWESTERN DE KALB...NORTHERN NOBLE...SOUTHWESTERN STEUBEN...
SOUTHERN LAGRANGE AND SOUTHEASTERN ELKHART COUNTIES...

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
COSPERVILLE...FAIRFIELD CENTER... ASHLEY... 
STEUBENVILLE...HUDSON...HELMER...HAMILTON...EDDY...ROME CITY... 
WOODRUFF... STROH... INDIANOLA... ELMIRA...TOPEKA...BENTON AND 
MILLERSBURG.

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT OVER 3 INCHES 
OF RAIN HAS FALLEN OVER PORTIONS OF THE AREA EARLY THIS MORNING. 
WATER HAS BEEN REPORTED OVER SOME ROADWAYS IN THE AREA. OCCASIONAL 
RAIN IS EXPECTED TO CONTINUE THIS MORNING WITH ADDITIONAL RAINFALL 
AMOUNTS OF A QUARTER TO HALF INCH POSSIBLE. 

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. 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.

IF YOU HAVE FLOODING TO REPORT...YOU CAN CALL YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4138 8491 4143 8566 4145 8566 4145 8581
      4154 8579 4163 8490

$$
069 
WGUS73 KIWX 071328
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
928 AM EDT MON MAY 7 2012

INC033-039-087-113-151-071336-
/O.EXP.KIWX.FF.W.0003.000000T0000Z-120507T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ELKHART IN-LAGRANGE IN-STEUBEN IN-NOBLE IN-DE KALB IN-
928 AM EDT MON MAY 7 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 930 AM EDT FOR NORTHWESTERN
DE KALB...NORTHERN NOBLE...SOUTHWESTERN STEUBEN...SOUTHERN LAGRANGE
AND SOUTHEASTERN ELKHART COUNTIES...

AT 925 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT BETWEEN 1 AND 3 INCHES OF RAIN HAD FALLEN SINCE LAST EVENING 
ACROSS THE AREA. ADDITIONAL RAINFALL AMOUNTS THIS MORNING ARE 
EXPECTED TO RANGE BETWEEN A TENTH AND A QUARTER OF AN INCH. NO 
ADDITIONAL REPORTS OF FLOODING HAVE BEEN RECEIVED. HOWEVER...THE 
COMBINATION OF THE RECENT HEAVY RAIN AND ADDITIONAL RAIN THIS 
MORNING WILL LEAD TO CONTINUE PONDING OF WATER ON ROADWAYS.

IF YOU HAVE FLOODING TO REPORT...YOU CAN CALL YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4138 8491 4143 8566 4145 8566 4145 8581
      4154 8579 4163 8490

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 3:11 AM EDTSpecial Weather StatementIWXPulaski, White64 min
May 7, 4:36 AM EDTSpecial Weather StatementIWXWhitley24 min
May 7, 4:55 AM EDTFlash Flood WarningIWXWhite4 hr
May 7, 4:56 AM EDTSpecial Weather StatementIWXDeKalb, Steuben34 min
May 7, 3:58 PM EDTSevere Thunderstorm WarningIWXJay53 min

Nearby

Flash Flood Warnings in Indiana, 2012Every flash flood warning in 2012

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.