Alert archive / Kentucky / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 204, NWS Jackson, KY

August 4, 20095 counties in Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Aug 4, 2009, 4:15 PM EDT for 5 counties in Kentucky. It was in force for 45 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: Aug 4, 2009, 4:15 PM EDT (20:15 UTC)
Expired: Aug 4, 2009, 5:00 PM EDT
In force: 45 min
Issued by: NWS Jackson, KY
Area: Storm-based polygon

Counties Knox County, KY, Laurel County, KY, McCreary County, KY, Pulaski County, KY, Whitley County, KY

The radar

The Jackson,KY radar (KJKL), 111 km from the middle of the area, began a volume at 20:18 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.

Issued	Product	Office	Lasted
Aug 4, 1:21 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.3 hours before the alert went out and 229 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: 3443 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 680 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 42 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.8

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 Aug 4, 3:45 PM EDT, 30 minutes earlier.

Area forecast discussion, Aug 4, 3:45 PM EDT, 30 minutes before

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Hazardous weather outlook, Aug 4, 4:15 PM EDT, 0 minutes before

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In the hours before

Local storm report, Aug 4, 10:58 AM EDT, 5 hours 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON KY
1058 AM EDT TUE AUG 04 2009

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

1053 AM     FLASH FLOOD      MOUNT STERLING          38.06N 83.95W
08/04/2009                   MONTGOMERY         KY   LAW ENFORCEMENT

            DISPATCH REPORTED NUMEROUS ROADS IMPASSABLE ACROSS THE
            COUNTY.SOME ROADS AFFECTED ARE MAIN STREET IN MOUNT
            STERLING...KIDWELL ROAD...LEVEE ROAD...HINKSTONPIKE...US
            HIGHWAY60...PREWITT-GRASSY ROAD...OWINGSVILLE ROAD.

&&

DSTAMPER

Local storm report, Aug 4, 11:31 AM EDT, 4 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON KY
1131 AM EDT TUE AUG 04 2009

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

1125 AM     FLASH FLOOD      STANTON                 37.85N 83.86W
08/04/2009                   POWELL             KY   LAW ENFORCEMENT

            PORTIONS OF HIGHWAY 15 HAS OVER 6 INCHES OF WATER FLOWING
            ACROSS IT. DEBRIS IS ALSO FLOWING ACROSS HIGHWAY 15.

&&

DSTAMPER

Local storm report, Aug 4, 11:54 AM EDT, 4 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON KY
1154 AM EDT TUE AUG 04 2009

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

1150 AM     FLASH FLOOD      STANTON                 37.85N 83.86W
08/04/2009                   POWELL             KY   LAW ENFORCEMENT

            EMERGENCY MANAGER SAY STANTON IS UNDER SEVERE FLASH
            FLOODING.CURRENTLY A RESCUE IS UNDERWAY IN THE CITY
            LIMITS ON STANTON ROAD. A DAYCARE HAS BEEN EVACUATED.
            MANY BUSINESSES HAVE BEEN FLOODED. DEBRIS IS FLOWING
            ACROSS MANY ROAD IN THE CITY LIMITS.

&&

DSTAMPER

Special weather statement, Aug 4, 2:01 PM EDT, 2 hours 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
201 PM EDT TUE AUG 4 2009

KYZ086>088-116-117-041900-
CLAY-LESLIE-KNOX-HARLAN-BELL-
201 PM EDT TUE AUG 4 2009

...A STRONG THUNDERSTORM TO AFFECT THE FOLLOWING COUNTIES THROUGH 300
PM EDT TUESDAY AFTERNOON...

   SOUTHEASTERN CLAY...
   SOUTHERN LESLIE...
   NORTHEASTERN KNOX...
   WESTERN HARLAN AND
   NORTHEASTERN BELL.

AT 201 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR OGLE...OR 11
MILES SOUTH OF MANCHESTER...MOVING EAST AT 15 MPH.

LOCATIONS AFFECTED INCLUDE...BUT ARE NOT LIMITED TO...SALT GUM AROUND
210 PM EDT...ICE CLIFF AROUND 220 PM EDT...ASHERS FORK AROUND 225 PM
EDT...EROSE AROUND 230 PM EDT AND FIELD AROUND 235 PM EDT.

RESIDENTS SHOULD EXPECT VERY HEAVY RAIN...WITH RAINFALL RATES OF UP
TO TWO INCHES PER HOUR...GUSTY WINDS OF 40 TO 50 MPH...FREQUENT
LIGHTNING AND SMALL HAIL IN THESE AREAS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR SOUTHEASTERN KENTUCKY.

ABE

Local storm report, Aug 4, 2:41 PM EDT, 1 hour 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON KY
241 PM EDT TUE AUG 04 2009

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

0236 PM     HAIL             ARJAY                   36.81N 83.65W
08/04/2009  E0.50 INCH       BELL               KY   TRAINED SPOTTER

            DIME SIZED HAIL AT ARJAY.

&&

DSTAMPER

Special weather statement, Aug 4, 3:54 PM EDT, 21 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 10:11 AM EDT	Severe Thunderstorm Warning	JKL	Johnson, Martin	29 min
Aug 4, 10:15 AM EDT	Areal Flood Advisory	JKL	Bath, Menifee, Montgomery	3 hr
Aug 4, 10:43 AM EDT	Flash Flood Warning	JKL	Bath, Menifee, Montgomery	4 hr
Aug 4, 10:57 AM EDT	Flash Flood Watch	JKL	Bath, Bell, Breathitt, Clay, Elliott, Estill and 27 more	25 hr
Aug 4, 11:01 AM EDT	Flash Flood Warning	JKL	Menifee, Powell, Wolfe	4 hr
Aug 4, 11:44 AM EDT	Areal Flood Advisory	JKL	Estill, Lee	3 hr
Aug 4, 2:20 PM EDT	Severe Thunderstorm Warning	JKL	Bell, Clay, Knox	40 min
Aug 4, 2:40 PM EDT	Severe Thunderstorm Warning	JKL	Bell, Harlan, Knox	50 min
Aug 4, 2:47 PM EDT	Flash Flood Warning	JKL	Bath, Breathitt, Estill, Lee, Menifee, Montgomery and 2 more	13 min
Aug 4, 2:57 PM EDT	Flash Flood Warning	JKL	Bath, Breathitt, Estill, Lee, Menifee, Montgomery and 3 more	4 hr
Aug 4, 3:06 PM EDT	Severe Thunderstorm Warning	JKL	Bath, Fleming, Menifee, Montgomery, Powell, Rowan	39 min
Aug 4, 3:26 PM EDT	Flash Flood Warning	JKL	Bell, Knox	4 hr
Aug 4, 3:27 PM EDT	Severe Thunderstorm Warning	JKL	Bath, Breathitt, Estill, Lee, Menifee, Montgomery and 4 more	48 min
Aug 4, 3:30 PM EDT	Severe Thunderstorm Warning	JKL	McCreary, Pulaski, Wayne, Whitley	45 min
Aug 4, 4:40 PM EDT	Areal Flood Advisory	JKL	Breathitt, Floyd, Knott, Magoffin, Menifee, Morgan and 2 more	3 hr
Aug 4, 4:53 PM EDT	Areal Flood Advisory	JKL	Bell, Knox, Laurel, McCreary, Pulaski, Wayne and 1 more	3 hr
Aug 4, 4:58 PM EDT	Severe Thunderstorm Warning	JKL	Bell, Clay, Knox, Laurel, Leslie	32 min
Aug 4, 5:39 PM EDT	Severe Thunderstorm Warning	JKL	Harlan	25 min
Aug 4, 6:49 PM EDT	River Flood Advisory	JKL	Estill, Powell	29 hr
Aug 4, 6:57 PM EDT	Areal Flood Warning	JKL	Montgomery	10 hr

Nearby

Severe Thunderstorm Warnings in Kentucky, 2009 Every 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.