Alert archive / Kentucky / Flash Flood Warnings in 2010

Flash Flood Warning 27, NWS Jackson, KY

May 18, 2010Floyd County, Martin County, Pike County, Kentucky

NWS Jackson, KY issued this flash flood warning at May 18, 2010, 1:52 AM EDT for Floyd County, Martin County, Pike 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
May 18, 2010, 1:52 AM EDT (05:52 UTC)
Expired
May 18, 2010, 6:18 AM EDT
In force
4 hr
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Flood severity
None

Counties Floyd County, KY, Martin County, KY, Pike County, KY

The radar

The Jackson,KY radar (KJKL), 67 km from the middle of the area, began a volume at 05:55 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, 5.9 hours before the alert went out and 230 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, Cncnati-Daytn, OH at 00:00Z on 2010-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2010-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 square meters per square second.1939587897Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
554 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jackson, KY wrote its last area forecast discussion before this flash flood warning went out at May 17, 7:06 PM EDT, 6 hours 46 minutes earlier.

Area forecast discussion, May 17, 7:06 PM EDT, 6 hours 46 minutes before
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Hazardous weather outlook, May 17, 3:40 PM EDT, 10 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON KY
340 PM EDT MON MAY 17 2010

KYZ079-080-083>088-110-113-115>118-120-182245-
PULASKI-LAUREL-WAYNE-MCCREARY-WHITLEY-KNOX-BELL-HARLAN-FLOYD-KNOTT-
PERRY-CLAY-LESLIE-LETCHER-PIKE-
INCLUDING THE CITIES OF...SOMERSET...LONDON...MONTICELLO...
WHITLEY CITY...CORBIN...WILLIAMSBURG...BARBOURVILLE...MIDDLESBORO...
PINEVILLE...HARLAN...PRESTONSBURG...HINDMAN...HAZARD...MANCHESTER...
HYDEN...WHITESBURG...PIKEVILLE
340 PM EDT MON MAY 17 2010

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...SEVERE THUNDERSTORM WATCH 179 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN KENTUCKY.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A SLOW MOVING STORM SYSTEM MOVING THROUGH THE REGION WILL BE
RESPONSIBLE FOR THUNDERSTORMS PRODUCING HEAVY RAINFALL THIS AFTERNOON
AND THIS EVENING. WITH SATURATED SOILS IN PLACE ACROSS THE
AREA...ANY ADDITIONAL HEAVY RAINFALL WILL POSE A THREAT OF FLASH
FLOODING.

SOME OF THE THUNDERSTORMS THIS AFTERNOON AND EVENING COULD ALSO BECOME
SEVERE WITH LARGE HAIL A SECONDARY THREAT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THUNDERSTORMS ARE POSSIBLE ON TUESDAY AND THURSDAY. THUNDERSTORMS
WILL BE POSSIBLE AGAIN FROM THURSDAY NIGHT THROUGH SATURDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT ANY OCCURRENCES OF LARGE
HAIL...DAMAGING WINDS OR FLOODING TO THE JACKSON WEATHER OFFICE.

KYZ119-182245-
MARTIN-
INCLUDING THE CITIES OF...INEZ
340 PM EDT MON MAY 17 2010

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN KENTUCKY.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A SLOW MOVING STORM SYSTEM MOVING THROUGH THE REGION WILL BE
RESPONSIBLE FOR THUNDERSTORMS PRODUCING HEAVY RAINFALL THIS AFTERNOON
AND THIS EVENING. WITH SATURATED SOILS IN PLACE ACROSS THE
AREA...ANY ADDITIONAL HEAVY RAINFALL WILL POSE A THREAT OF FLASH
FLOODING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THUNDERSTORMS ARE POSSIBLE ON TUESDAY AND THURSDAY. THUNDERSTORMS
WILL BE POSSIBLE AGAIN FROM THURSDAY NIGHT THROUGH SATURDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT ANY OCCURRENCES OF FLOODING TO THE
JACKSON WEATHER OFFICE.

KYZ044-051-052-104-106-107-182245-
FLEMING-BATH-ROWAN-ELLIOTT-MORGAN-JOHNSON-
INCLUDING THE CITIES OF...FLEMINGSBURG...OWINGSVILLE...MOREHEAD...
SANDY HOOK...WEST LIBERTY...PAINTSVILLE
340 PM EDT MON MAY 17 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN KENTUCKY.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THUNDERSTORMS ARE POSSIBLE ON TUESDAY AND THURSDAY. THUNDERSTORMS
WILL BE POSSIBLE AGAIN FROM THURSDAY NIGHT THROUGH SATURDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

KYZ050-058>060-068-069-108-109-111-112-114-182245-
MONTGOMERY-ESTILL-POWELL-MENIFEE-ROCKCASTLE-JACKSON-WOLFE-MAGOFFIN-
LEE-BREATHITT-OWSLEY-
INCLUDING THE CITIES OF...MOUNT STERLING...IRVINE...STANTON...
FRENCHBURG...MOUNT VERNON...MCKEE...CAMPTON...SALYERSVILLE...
BEATTYVILLE...JACKSON...BOONEVILLE
340 PM EDT MON MAY 17 2010

...SEVERE THUNDERSTORM WATCH 179 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN KENTUCKY.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SOME OF THE THUNDERSTORMS THIS AFTERNOON AND EVENING COULD BECOME
SEVERE WITH LARGE HAIL AND LOCALLY HEAVY RAINFALL THE PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THUNDERSTORMS ARE POSSIBLE ON TUESDAY AND THURSDAY. THUNDERSTORMS
WILL BE POSSIBLE AGAIN FROM THURSDAY NIGHT THROUGH SATURDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT ANY OCCURRENCES OF LARGE
HAIL...DAMAGING WINDS OR FLOODING TO THE JACKSON OFFICE.

AR

In the hours before

Local storm report, May 17, 7:58 PM EDT, 5 hours 54 minutes before
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The office that day

Everything else NWS Jackson, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 17, 9:50 PM EDTSevere Thunderstorm WarningJKLKnott, Perry25 min
May 17, 10:14 PM EDTSevere Thunderstorm WarningJKLKnott, Letcher31 min
May 17, 11:31 PM EDTSevere Thunderstorm WarningJKLLetcher29 min
May 18, 12:20 AM EDTAreal Flood AdvisoryJKLPike3 hr
May 18, 1:25 AM EDTFlash Flood WarningJKLMartin5 hr

Nearby

Flash Flood Warnings in Kentucky, 2010Every 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.