Alert archive / Ohio / Flash Flood Warnings in 2011

Flash Flood Warning 3, NWS Northern Indiana

May 14, 2011Henry County, Ohio

NWS Northern Indiana issued this flash flood warning at May 14, 2011, 4:26 PM EDT for Henry County, Ohio. 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: May 14, 2011, 4:26 PM EDT (20:26 UTC)
Expired: May 14, 2011, 7:30 PM EDT
In force: 3 hr
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Flood severity: None

County Henry County, OH

The radar

The Northern Indiana radar (KIWX), 131 km from the middle of the area, began a volume at 20:29 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

Time	Report	Where	Remark
May 14, 4:50 PM EDT	FLASH FLOOD	Napoleon, OH	SEVERAL STREETS THAT NORMALLY DONT EXPERIENCE FLOODING ARE WATER COVERED

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

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 8.4 hours before the alert went out and 160 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: 39 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 522 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: 80 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.

016 
WGUS53 KIWX 142026
FFWIWX
OHC069-142330-
/O.NEW.KIWX.FF.W.0003.110514T2026Z-110514T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
426 PM EDT SAT MAY 14 2011

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL HENRY COUNTY IN NORTHWEST OHIO

* UNTIL 730 PM EDT

* AT 420 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
VERY HEAVY RAIN FROM SLOW MOVING THUNDERSTORMS OVER THE WARNED AREA. 
RADAR ESTIMATES THAT 2 TO 3 INCHES HAS FALLEN IN THE LAST 2 
HOURS...WITH AN ADDITIONAL 1 INCH POSSIBLE IN THE NEXT HOUR.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NAPOLEON...
  TEXAS AND LIBERTY CENTER

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.

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

&&

LAT...LON 4132 8395 4130 8422 4131 8423 4142 8422
      4142 8424 4146 8424 4146 8395

$$


JC

2 follow-up statements

907 
WGUS73 KIWX 142144
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
544 PM EDT SAT MAY 14 2011

OHC069-142330-
/O.CON.KIWX.FF.W.0003.000000T0000Z-110514T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HENRY OH-
544 PM EDT SAT MAY 14 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR 
CENTRAL HENRY COUNTY...

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TEXAS...
NAPOLEON AND LIBERTY CENTER.

HEAVY RAIN HAS EXITED THE AREA. HOWEVER...RAINFALL TOTALS OF UP TO 3 
AND A HALF INCHES WERE ESTIMATED IN NAPOLEON...WITH THE MAJORITY OF 
THE RAIN FALLING IN 2 HOURS. EMERGENCY MANAGEMENT REPORTED THAT 
SEVERAL STREETS WERE FLOODED IN TOWN. RUNOFF FROM HEAVY RAIN MAY 
ALSO LEAD TO MINOR FLOODING ALONG SMALL STREAMS...AGRICULTURAL 
DITCHES AND CREEKS. RAINFALL IS EXPECTED THROUGH TONIGHT AND INTO 
SUNDAY...WHICH COULD LEAD TO ADDITIONAL FLOODING. PERSONS WHO LIVE 
IN FLOOD PRONE LOCATIONS SHOULD MONITOR NOAA WEATHER RADIO OR YOUR 
LOCAL MEDIA FOR ANY ADDITIONAL FLOOD STATEMENTS AND POSSIBLE 
WARNINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

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.

&&

LAT...LON 4132 8395 4130 8422 4131 8423 4142 8422
      4142 8424 4146 8424 4146 8395

$$


JC

153 
WGUS73 KIWX 142328
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
728 PM EDT SAT MAY 14 2011

OHC069-142338-
/O.EXP.KIWX.FF.W.0003.000000T0000Z-110514T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HENRY OH-
728 PM EDT SAT MAY 14 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 730 PM EDT FOR CENTRAL
HENRY COUNTY...

RAINFALL HAS ENDED ACROSS THE AREA AND FLOODING CONCERNS CONTINUE TO 
SUBSIDE. RAINFALL IS EXPECTED THROUGH TONIGHT AND INTO 
SUNDAY...WHICH COULD LEAD TO ADDITIONAL FLOODING. PERSONS WHO LIVE 
IN FLOOD PRONE LOCATIONS SHOULD MONITOR NOAA WEATHER RADIO OR YOUR 
LOCAL MEDIA FOR ANY ADDITIONAL FLOOD STATEMENTS AND POSSIBLE 
WARNINGS.

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 4132 8395 4130 8422 4131 8423 4142 8422
      4142 8424 4146 8424 4146 8395

$$


JC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 9:35 PM EDT	Areal Flood Advisory	IWX	Defiance, Paulding, Putnam	6 hr
May 14, 1:53 PM EDT	Special Weather Statement	IWX	Allen	52 min
May 14, 2:06 PM EDT	Flash Flood Warning	IWX	Allen, Putnam	3 hr
May 14, 3:25 PM EDT	Special Weather Statement	IWX	Defiance	20 min
May 14, 3:47 PM EDT	Areal Flood Advisory	IWX	Defiance, Williams	3 hr
May 14, 6:25 PM EDT	Areal Flood Advisory	IWX	Williams	3 hr
May 14, 7:53 PM EDT	Areal Flood Warning	IWX	Defiance, Williams	12 hr

Nearby

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