Alert archive / Kentucky / Flash Flood Warnings in 2010

Flash Flood Warning 36, NWS Wilmington, OH

July 20, 2010Lewis County, Kentucky

NWS Wilmington, OH issued this flash flood warning at Jul 20, 2010, 10:11 PM EDT for Lewis County, Kentucky. 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 counties it named.

The facts

Issued: Jul 20, 2010, 10:11 PM EDT (02:11 UTC)
Expired: Jul 21, 2010, 2:00 AM EDT
In force: 4 hr
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Flood severity: None

County Lewis County, KY

The radar

The Jackson,KY radar (KJKL), 105 km from the middle of the area, began a volume at 02:11 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.2 hours before the alert went out and 106 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: 717 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 997 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash 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 flash flood warning went out at Jul 20, 7:53 PM EDT, 2 hours 18 minutes earlier.

Area forecast discussion, Jul 20, 7:53 PM EDT, 2 hours 18 minutes before

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Hazardous weather outlook, Jul 20, 4:55 AM EDT, 17 hours 16 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
455 AM EDT TUE JUL 20 2010

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-210900-
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-
455 AM EDT TUE JUL 20 2010

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.

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS
AFTERNOON AND TONIGHT. A FEW OF THESE THUNDERSTORMS MAY BE CAPABLE
OF PRODUCING DAMAGING WIND GUSTS. HEAVY RAIN WILL ALSO BE
POSSIBLE...WHICH MAY LEAD TO AREAS OF MINOR FLOODING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

SHOWERS AND THUNDERSTORMS ARE POSSIBLE WEDNESDAY AND WEDNESDAY
NIGHT. DAMAGING WIND GUSTS AND HEAVY RAIN WILL BE POSSIBLE WITH
SOME OF THESE STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED TODAY AND WEDNESDAY.

In the hours before

Special weather statement, Jul 20, 6:18 PM EDT, 3 hours 53 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
618 PM EDT TUE JUL 20 2010

KYZ092-093-096-OHZ077>079-202300-
CAMPBELL KY-KENTON KY-PENDLETON KY-CLERMONT OH-HAMILTON OH-BROWN OH-
618 PM EDT TUE JUL 20 2010

...A CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT
BROWN...SOUTHEASTERN HAMILTON...CLERMONT...NORTHEASTERN
PENDLETON...KENTON AND CAMPBELL COUNTIES THROUGH 700 PM EDT...

AT 616 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS EXTENDING FROM
NEAR TAYLOR MILL TO FEESBURG...MOVING NORTHEAST AT 25 MPH.

WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THESE STORMS. IN
ADDITION...VERY HEAVY RAIN CAN BE EXPECTED.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...COLD SPRING...HIGHLAND
HEIGHTS...SILVER GROVE...MELBOURNE...GEORGETOWN...BETHEL...AMELIA...
ANDERSON TOWNSHIP...WITHAMSVILLE...BATAVIA...WILLIAMSBURG AND
MILFORD.

ALSO...SALTAIR...CRESTVIEW...FEESBURG...BLAIRSVILLE...NICHOLSVILLE...
NEW PALESTINE...LINDALE AND HAMERSVILLE ARE NEAR THE PATH OF THESE
LINE OF STRONG THUNDERSTORMS.

WATER WILL POND ON ROADS AND MAY QUICKLY FILL ROADSIDE DITCHES AND
SMALL STREAMS.

REMAIN ALERT IN CASE THESE STORMS STRENGTHEN FURTHER...AND WARNINGS
BECOME NECESSARY.

LAT...LON 3887 8449 3900 8457 3926 8414 3909 8387
      3902 8387 3902 8374 3898 8368 3879 8400

HATZOS

Special weather statement, Jul 20, 6:51 PM EDT, 3 hours 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
651 PM EDT TUE JUL 20 2010

OHZ070-071-077-202330-
HAMILTON OH-BUTLER OH-WARREN OH-
651 PM EDT TUE JUL 20 2010

...A STRONG THUNDERSTORM WILL AFFECT WESTERN WARREN...SOUTHEASTERN
BUTLER AND NORTHEASTERN HAMILTON COUNTIES THROUGH 730 PM EDT...

AT 649 PM EDT...RADAR INDICATED A STRONG THUNDERSTORM NEAR PLEASANT
RUN...MOVING EAST AT 20 MPH.

WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THIS STORM.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...FOREST PARK...
FAIRFIELD...HAMILTON...WYOMING...SPRINGDALE...SHARONVILLE...BLUE
ASH...MONROE...MASON...LOVELAND AND LEBANON.

ALSO...PLEASANT RUN FARM...GREENHILLS...LOCKLAND...WOODLAWN...LINCOLN
HEIGHTS...GLENDALE...EVENDALE AND BECKETT RIDGE ARE NEAR THE PATH OF
THIS STRONG THUNDERSTORM.

RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT. IF THIS STORM BECOMES
STRONGER...THEN A WARNING MAY BE NEEDED.

LAT...LON 3957 8417 3930 8412 3919 8462 3936 8466

HATZOS

Local storm report, Jul 20, 9:57 PM EDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
957 PM EDT TUE JUL 20 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0950 PM     HEAVY RAIN       3 ESE TOLLESBORO        38.55N 83.52W
07/20/2010  E1.69 INCH       LEWIS              KY   TRAINED SPOTTER

            TOTAL FOR 07/20 AS OF 950 PM. SPOTTER LOCATION IS SOUTH
            OF RIBOLT.

&&

HATZOS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 10:47 PM EDT	Areal Flood Advisory	ILN	Adams, Brown, Clermont	3 hr
Jul 21, 12:54 AM EDT	Flash Flood Warning	ILN	Scioto	3 hr
Jul 21, 4:01 AM EDT	Flash Flood Watch	ILN	Adams, Brown, Clermont, Scioto	16 hr
Jul 21, 11:42 AM EDT	Areal Flood Advisory	ILN	Brown, Clermont	3 hr
Jul 21, 2:55 PM EDT	Areal Flood Advisory	ILN	Clermont	5 hr
Jul 21, 3:21 PM EDT	Areal Flood Advisory	ILN	Adams, Brown	3 hr
Jul 20, 8:12 PM EDT	Areal Flood Advisory	ILN	Lewis	3 hr
Jul 20, 11:02 PM EDT	Flash Flood Warning	ILN	Bracken, Mason	3 hr
Jul 20, 11:36 PM EDT	Severe Thunderstorm Warning	ILN	Mason, Robertson	26 min
Jul 21, 12:18 AM EDT	Special Weather Statement	ILN	Lewis	27 min
Jul 21, 12:21 AM EDT	Severe Thunderstorm Warning	ILN	Lewis	12 min
Jul 21, 12:32 AM EDT	Flash Flood Warning	ILN	Bracken, Mason	118 min
Jul 21, 1:59 AM EDT	Flash Flood Warning Emergency	ILN	Lewis, Mason	4 hr
Jul 21, 3:46 AM EDT	Areal Flood Advisory	ILN	Owen	2 hr
Jul 21, 5:45 AM EDT	Areal Flood Warning	ILN	Lewis, Mason	8 hr
Jul 21, 4:18 PM EDT	Areal Flood Advisory	ILN	Lewis, Mason	2 hr
Jul 21, 4:22 PM EDT	Special Weather Statement	ILN	Mason	53 min
Jul 21, 5:05 PM EDT	Special Weather Statement	ILN	Campbell, Kenton	55 min
Jul 21, 5:28 PM EDT	Flash Flood Warning	ILN	Campbell, Kenton	2 hr

Nearby

Flash Flood Warnings in Kentucky, 2010 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.