Alert archive / Ohio / River Flood Warnings in 2011

River Flood Warning 54, NWS Wilmington, OH

April 21, 2011Franklin County, Madison County, Pickaway County, Ohio

NWS Wilmington, OH issued this river flood warning at Apr 21, 2011, 8:58 AM EDT for Franklin County, Madison County, Pickaway County, Ohio. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued: Apr 21, 2011, 8:58 AM EDT (12:58 UTC)
Expired: Apr 21, 2011, 10:33 PM EDT
In force: 14 hr
Issued by: NWS Wilmington, OH
Flood severity: Minor

Counties Franklin County, OH, Madison County, OH, Pickaway County, OH

The radar

The Cincinnati radar (KILN), 74 km from the middle of the area, began a volume at 13:02 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 river

Written for the forecast point Big Darby Creek at Darbyville (DBVO1).

Action stage: 10 ft
Minor stage: 12 ft
Moderate stage: 17 ft
Major stage: 20 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 03230500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, OH wrote its last area forecast discussion before this river flood warning went out at Apr 21, 6:43 AM EDT, 2 hours 15 minutes earlier.

Area forecast discussion, Apr 21, 6:43 AM EDT, 2 hours 15 minutes before

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Hazardous weather outlook, Apr 21, 5:33 AM EDT, 3 hours 25 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
533 AM EDT THU APR 21 2011

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-220945-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-
SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-OWEN-GRANT-
PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-HARDIN-MERCER-AUGLAIZE-DARKE-
SHELBY-LOGAN-UNION OH-DELAWARE-MIAMI-CHAMPAIGN-CLARK-MADISON-
FRANKLIN OH-LICKING-PREBLE-MONTGOMERY-GREENE-FAYETTE OH-PICKAWAY-
FAIRFIELD-BUTLER-WARREN-CLINTON-ROSS-HOCKING-HAMILTON-CLERMONT-BROWN-
HIGHLAND-ADAMS-PIKE-SCIOTO-
533 AM EDT THU APR 21 2011

...FLASH FLOOD WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
AFTERNOON...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL
INDIANA...SOUTHEAST INDIANA...NORTHEAST KENTUCKY...NORTHERN
KENTUCKY...CENTRAL OHIO...MIAMI VALLEY OF OHIO...SOUTH CENTRAL
OHIO...SOUTHWEST OHIO AND WEST CENTRAL OHIO.

.DAY ONE...TODAY AND TONIGHT.

RIVERS THROUGHOUT THE AREA ARE RUNNING HIGH...WITH SEVERAL POINTS
IN FLOOD. PLEASE CHECK THE RIVER FLOOD PRODUCTS FOR DETAILS AND
THE LATEST FORECASTS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   FLASH FLOOD WATCH.

RIVERS THROUGHOUT THE AREA ARE RUNNING HIGH...WITH SEVERAL POINTS
IN FLOOD. PLEASE CHECK THE RIVER FLOOD PRODUCTS FOR DETAILS AND
THE LATEST FORECASTS.

A WARM FRONT WILL DEVELOP OVER THE OHIO VALLEY TONIGHT AND LIFT
NORTHWARD ON FRIDAY. THE BOUNDARY WILL PUSH BACK SOUTH ON
SATURDAY...LAYING OUT ALONG THE OHIO RIVER OVERNIGHT AND ON
SUNDAY. MOIST AIR BEING PULLED INTO THE REGION WILL GET WRUNG OUT
ALONG AND NEAR THESE SYSTEMS...AND WILL RESULT IN HEAVY RAINFALL.
ANY PROLONGED OR HEAVY RAIN IN THE NEXT WEEK WILL LIKELY RESULT IN
RENEWED FLOODING DUE TO THE ALREADY SATURATED GROUND AND SWOLLEN
CREEKS AND STREAMS.

IN ADDITION...DAMAGING WINDS AND LARGE HAIL MAY ACCOMPANY
THUNDERSTORMS THAT DEVELOP IN THE UNSTABLE AIRMASS ASSOCIATED WITH
THE FRONT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 21, 4:08 AM EDT	Flash Flood Watch	ILN	Adams, Auglaize, Brown, Butler, Champaign, Clark and 26 more	5 days
Apr 21, 3:51 PM EDT	River Flood Warning	ILN	Clermont, Hamilton	8 days
Apr 20, 9:16 PM EDT	River Flood Warning	ILN	Fayette, Franklin	6 hr

Nearby

River Flood Warnings in Ohio, 2011 Every river 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.