Alert archive / Kentucky / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 93, NWS Jackson, KY

May 31, 2009Floyd County, Pike County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at May 31, 2009, 3:07 AM EDT for Floyd County, Pike County, Kentucky. It was in force for 38 min. 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 31, 2009, 3:07 AM EDT (07:07 UTC)
Expired
May 31, 2009, 3:45 AM EDT
In force
38 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon

Counties Floyd County, KY, Pike County, KY

The radar

The Jackson,KY radar (KJKL), 66 km from the middle of the area, began a volume at 07:06 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 30, 4:49 PM EDTSevere Thunderstorm WatchSPC11 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 7.1 hours before the alert went out and 238 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 2009-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 500 joules per kilogram.LCLLFCEL10008507005003002001001 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 2009-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.19395878Sfc1 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
500 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
1374 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
246 m²/s²
Significant tornado parameter
0.3
Supercell composite
4.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at May 31, 2:13 AM EDT, 54 minutes earlier.

Area forecast discussion, May 31, 2:13 AM EDT, 54 minutes before
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Hazardous weather outlook, May 31, 2:39 AM EDT, 28 minutes before
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In the hours before

Special weather statement, May 31, 12:01 AM EDT, 3 hours 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
1201 AM EDT SUN MAY 31 2009

KYZ107-119-310430-
JOHNSON-MARTIN-
1201 AM EDT SUN MAY 31 2009

...A STRONG THUNDERSTORM TO AFFECT JOHNSON AND MARTIN COUNTIES
THROUGH 1230 AM EDT SUNDAY MORNING...

AT MIDNIGHT EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR
BARNROCK...MOVING EAST-SOUTHEAST AT 35 MPH.

THIS STORM WILL BE NEAR WINIFRED AROUND 1205 AM EDT...CHANDLERVILLE
AROUND 1210 AM EDT...STAMBAUGH AROUND 1215 AM EDT...RIVER AROUND 1220
AM EDT...CHESTNUT AROUND 1225 AM EDT...

RESIDENTS SHOULD EXPECT VERY HEAVY RAIN...GUSTY WINDS OF 30 TO 40
MPH...FREQUENT LIGHTNING AND SMALL HAIL UP TO THE SIZE OF NICKELS IN
THESE AREAS.

DANGEROUS CLOUD TO GROUND LIGHTNING IS ASSOCIATED WITH THIS
THUNDERSTORM. TAKE SHELTER IMMEDIATELY. REMEMBER...IF YOU CAN HEAR
THUNDER THEN LIGHTNING IS CLOSE ENOUGH TO BE A HAZARD.

ABE
Special weather statement, May 31, 12:24 AM EDT, 2 hours 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
1224 AM EDT SUN MAY 31 2009

KYZ104-106-107-119-310530-
ELLIOTT-JOHNSON-MARTIN-MORGAN-
1224 AM EDT SUN MAY 31 2009

...A STRONG THUNDERSTORM TO AFFECT EASTERN ELLIOTT...EAST CENTRAL
MORGAN...JOHNSON AND MARTIN COUNTIES THROUGH 130 AM EDT SUNDAY
MORNING...

AT 1224 AM EDT...STRONG THUNDERSTORMS WERE LOCATED OVER THE AREA
MOVING EAST AT 40 MPH.

THIS STORMS WILL BE NEAR WHITEHOUSE AROUND 1230 AM EDT...HAMMOND
AROUND 1235 AM EDT...TOMAHAWK AROUND 1240 AM EDT...INEZ AROUND 1245
AM EDT...ANDY AROUND 1250 AM EDT...

RESIDENTS SHOULD EXPECT VERY HEAVY RAIN...GUSTY WINDS UP TO 50
MPH...FREQUENT LIGHTNING AND SMALL HAIL UP TO THE SIZE OF NICKES IN
THESE AREAS.

DANGEROUS CLOUD TO GROUND LIGHTNING IS ASSOCIATED WITH THESE
THUNDERSTORMS. TAKE SHELTER IMMEDIATELY. REMEMBER...IF YOU CAN HEAR
THUNDER THEN LIGHTNING IS CLOSE ENOUGH TO BE A HAZARD.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM EDT SUNDAY
MORNING FOR EASTERN KENTUCKY.

ABE
Local storm report, May 31, 12:55 AM EDT, 2 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON KY
1255 AM EDT SUN MAY 31 2009

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

1245 AM     HAIL             INEZ                    37.87N 82.54W
05/31/2009  U0.88 INCH       MARTIN             KY   PUBLIC

&&

ABE
Special weather statement, May 31, 1:04 AM EDT, 2 hours 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
104 AM EDT SUN MAY 31 2009

KYZ104-106-107-310530-
ELLIOTT-JOHNSON-MORGAN-
104 AM EDT SUN MAY 31 2009

...A STRONG THUNDERSTORM TO AFFECT SOUTHERN ELLIOTT...NORTHEASTERN
MORGAN...NORTHERN JOHNSON COUNTIES THROUGH 130 AM EDT SUNDAY
MORNING...

AT 104 AM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR SANDY HOOK...
MOVING EAST AT 40 MPH.

THIS STORM WILL BE NEAR ISONVILLE AROUND 110 AM EDT...RELIEF AROUND
115 AM EDT...KEATON AROUND 120 AM EDT...BARNROCK AROUND 125 AM EDT...
WINIFRED AROUND 130 AM EDT...

RESIDENTS SHOULD EXPECT VERY HEAVY RAIN...GUSTY WINDS OF 30 TO 40
MPH...FREQUENT LIGHTNING AND SMALL HAIL UP TO THE SIZE OF NICKELS IN
THESE AREAS.

DANGEROUS CLOUD TO GROUND LIGHTNING IS ASSOCIATED WITH THIS
THUNDERSTORM. TAKE SHELTER IMMEDIATELY. REMEMBER...IF YOU CAN HEAR
THUNDER THEN LIGHTNING IS CLOSE ENOUGH TO BE A HAZARD.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM EDT SUNDAY
MORNING FOR EASTERN KENTUCKY.

ABE
Special weather statement, May 31, 1:27 AM EDT, 1 hour 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
127 AM EDT SUN MAY 31 2009

KYZ107-119-310630-
JOHNSON-MARTIN-
127 AM EDT SUN MAY 31 2009

...A STRONG THUNDERSTORM TO AFFECT NORTHERN JOHNSON AND MARTIN
COUNTIES THROUGH 230 AM EDT SUNDAY MORNING...

AT 126 AM EDT...A STRONG THUNDERSTORM WAS LOCATED OVER NORTHERN
JOHNSON COUNTY...MOVING EAST-SOUTHEAST AT 40 MPH.

THIS STORM WILL BE NEAR BAKER AROUND 135 AM EDT...CHESTNUT AROUND 140
AM EDT...INEZ AROUND 150 AM EDT...AND BEAUTY AROUND 200 AM EDT.

RESIDENTS SHOULD EXPECT VERY HEAVY RAIN...GUSTY WINDS OF 40 TO 50
MPH...FREQUENT LIGHTNING AND SMALL HAIL UP TO THE SIZE OF NICKELS IN
THESE AREAS.

DANGEROUS CLOUD TO GROUND LIGHTNING IS ASSOCIATED WITH THIS
THUNDERSTORM. TAKE SHELTER IMMEDIATELY. REMEMBER...IF YOU CAN HEAR
THUNDER THEN LIGHTNING IS CLOSE ENOUGH TO BE A HAZARD.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM EDT SUNDAY
MORNING FOR EASTERN KENTUCKY.

ABE
Special weather statement, May 31, 2:58 AM EDT, 9 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 11:01 PM EDTSevere Thunderstorm WarningJKLElliott, Rowan44 min
May 31, 12:39 AM EDTAreal Flood AdvisoryJKLBath, Elliott, Fleming, Johnson, Martin, Morgan and 1 more3 hr
May 31, 1:37 AM EDTSevere Thunderstorm WarningJKLJohnson, Martin, Pike53 min
May 31, 1:55 AM EDTFlash Flood WarningJKLJohnson, Martin3 hr
May 31, 3:17 AM EDTSevere Thunderstorm WarningJKLJackson, Lee, Owsley43 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2009Every severe thunderstorm warning in 2009

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.