Alert archive / Ohio / Flash Flood Warnings in 2016

Flash Flood Warning 2, NWS Wilmington, OH

May 30, 2016Adams County, Brown County, Ohio

NWS Wilmington, OH issued this flash flood warning at May 30, 2016, 12:08 AM EDT for Adams County, Brown County, Ohio. It was in force for 4 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 30, 2016, 12:08 AM EDT (04:08 UTC)
Expired: May 30, 2016, 4:00 AM EDT
In force: 4 hr
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Flood severity: None

Counties Adams County, OH, Brown County, OH

The radar

The Cincinnati radar (KILN), 72 km from the middle of the area, began a volume at 04:08 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 30, 12:45 AM EDT	FLASH FLOOD	2 Sw Decatur, OH	A BRIDGE WAS WASHED AWAY DUE TO FLASH FLOODING AT 763 AND WEST FORK.
May 30, 12:45 AM EDT	FLASH FLOOD	2 Sw Decatur, OH	THE BRIDGE AT THE INTERSECTION OF W. FORK RD. AND 763 WASHED AWAY DUE TO FLASH FLOODING. W. FORK RD. REMAINS IMPASSABLE.

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 00:00Z, 4.1 hours before the alert went out and 72 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: 1245 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 1323 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.8

Open this sounding in Storm Lab

The text

As transmitted.

174 
WGUS51 KILN 300408
FFWILN
OHC001-015-300800-
/O.NEW.KILN.FF.W.0002.160530T0408Z-160530T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
1208 AM EDT MON MAY 30 2016

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL ADAMS COUNTY IN SOUTHWESTERN OHIO...
  SOUTHEASTERN BROWN COUNTY IN SOUTHWESTERN OHIO...

* UNTIL 400 AM EDT.

* AT 1206 AM EDT...RADAR INDICATED THAT THUNDERSTORMS HAD PRODUCED
  HEAVY RAIN ACROSS THE WARNED AREA. TWO TO THREE INCHES OF RAIN HAS
  ALREADY FALLEN. HEAVY RAIN CONTINUES TO FALL WITH ANOTHER INCH
  POSSIBLE. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
  FLOODING TO OCCUR.  FLOODING HAS ALREADY BEEN REPORTED ON 247
  NORTH OF WEST UNION.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  WEST UNION...RIPLEY...BLUE CREEK...DECATUR...RUSSELLVILLE...BENTONVILLE...
  CEDAR MILLS...STATE ROUTE 348 AT STATE ROUTE 125...REDOAK AND
  DUNKINSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. 

TO REPORT FLASH FLOODING...GO TO OUR WEBSITE AT WEATHER.GOV/ILN AND
SUBMIT YOUR REPORT VIA SOCIAL MEDIA...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3875 8385 3876 8387 3887 8386 3887 8328
      3872 8328

$$

NOVAK

2 follow-up statements

270 
WGUS71 KILN 300608
FFSILN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
208 AM EDT MON MAY 30 2016

OHC001-015-300800-
/O.CON.KILN.FF.W.0002.000000T0000Z-160530T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ADAMS OH-BROWN OH-
208 AM EDT MON MAY 30 2016

...THE FLASH FLOOD WARNING FOR CENTRAL ADAMS AND SOUTHEASTERN BROWN
COUNTIES REMAINS IN EFFECT UNTIL 400 AM EDT...

AT 1245 AM...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING HAD
WASHED AWAY A BRIDGE AT 763 AND WEST FORK SOUTHWEST OF DECATUR IN
BROWN COUNTY.  UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN. RADAR
INDICATED THAT THE HEAVY RAINFALL HAS ENDED ACROSS THE AREA.
HOWEVER...RUNOFF FROM THE EARLIER EXCESSIVE RAIN WILL CAUSE FLASH
FLOODING TO CONTINUE TO OCCUR.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WEST UNION...RIPLEY...BLUE CREEK...DECATUR...RUSSELLVILLE...BENTONVILLE...
CEDAR MILLS...STATE ROUTE 348 AT STATE ROUTE 125...REDOAK AND
DUNKINSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. 

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TO REPORT FLASH FLOODING...GO TO OUR WEBSITE AT WEATHER.GOV/ILN AND
SUBMIT YOUR REPORT VIA SOCIAL MEDIA...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3875 8385 3876 8387 3887 8386 3887 8328
      3872 8328

$$

NOVAK

391 
WGUS71 KILN 300754
FFSILN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
354 AM EDT MON MAY 30 2016

OHC001-015-300803-
/O.EXP.KILN.FF.W.0002.000000T0000Z-160530T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ADAMS OH-BROWN OH-
354 AM EDT MON MAY 30 2016

...THE FLASH FLOOD WARNING FOR CENTRAL ADAMS AND SOUTHEASTERN BROWN
COUNTIES WILL EXPIRE AT 400 AM EDT...

THE HEAVY RAIN HAS ENDED AND FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT.

PLEASE REPORT PREVIOUS FLASH FLOODING TO THE NATIONAL WEATHER SERVICE
BY GOING TO OUR WEBSITE AT WEATHER.GOV/ILN AND SUBMITTING YOUR REPORT
VIA SOCIAL MEDIA.

LAT...LON 3875 8385 3876 8387 3887 8386 3887 8328
      3872 8328

$$

NOVAK

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 29, 8:31 PM EDT	Areal Flood Advisory	ILN	Clinton	3 hr
May 29, 8:54 PM EDT	Special Weather Statement	ILN	Clinton	36 min
May 29, 9:18 PM EDT	Areal Flood Advisory	ILN	Fayette, Highland	3 hr
May 29, 10:54 PM EDT	Areal Flood Advisory	ILN	Highland	3 hr
May 29, 11:37 PM EDT	Areal Flood Advisory	ILN	Adams, Brown	4 hr
May 30, 12:43 AM EDT	Areal Flood Advisory	ILN	Adams, Scioto	4 hr

Nearby

Flash Flood Warnings in Ohio, 2016 Every flash flood warning in 2016

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.