Alert archive / Kentucky / Red Flag Warnings in 2012

Red Flag Warning 2, NWS Jackson, KY

April 9, 201233 counties in Kentucky

NWS Jackson, KY issued this red flag warning at Apr 9, 2012, 2:28 AM EDT for 33 counties in Kentucky. It took effect at Apr 9, 2012, 1:00 PM EDT. It was in force for 6 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
Apr 9, 2012, 2:28 AM EDT (06:28 UTC)
In effect from
Apr 9, 2012, 1:00 PM EDT
Expired
Apr 9, 2012, 7:00 PM EDT
In force
6 hr
Issued by
NWS Jackson, KY
All 33 counties

Bath County, KY, Bell County, KY, Breathitt County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Floyd County, KY, Harlan County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Magoffin County, KY, Martin County, KY, McCreary County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY

The radar

The Jackson,KY radar (KJKL), 26 km from the middle of the area, began a volume at 06:34 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, 6.5 hours before the alert went out and 218 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 2012-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2012-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3268 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
-21 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

174 
WWUS83 KJKL 090628
RFWJKL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE JACKSON KY
228 AM EDT MON APR 9 2012

...CRITICAL FIRE WEATHER CONDITIONS THIS AFTERNOON...

.A COLD FRONT WILL PASS THROUGH THE AREA TODAY...WITH STRONG AND 
GUSTY WEST WINDS ENGAGING ALONG AND BEHIND THE FRONT. ADDITIONALLY...
DRIER AIR MIXING DOWN FROM ALOFT WILL ALLOW FOR LOW MINIMUM RELATIVE
HUMIDITIES.

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-091430-
/O.NEW.KJKL.FW.W.0002.120409T1700Z-120409T2300Z/
FLEMING-MONTGOMERY-BATH-ROWAN-ESTILL-POWELL-MENIFEE-ROCKCASTLE-
JACKSON-PULASKI-LAUREL-WAYNE-MCCREARY-WHITLEY-KNOX-BELL-HARLAN-
ELLIOTT-MORGAN-JOHNSON-WOLFE-MAGOFFIN-FLOYD-LEE-BREATHITT-KNOTT-
OWSLEY-PERRY-CLAY-LESLIE-LETCHER-MARTIN-PIKE-
228 AM EDT MON APR 9 2012

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
EDT THIS EVENING FOR STRONG WIND AND LOW RELATIVE HUMIDITY FOR
EASTERN KENTUCKY...

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A RED FLAG
WARNING FOR STRONG WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN
EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM EDT THIS EVENING.

* CRITICAL FIRE WEATHER CONDITIONS WILL PEAK BETWEEN 1 AND 7 PM
  TODAY. 

* WEST WINDS OF 10 TO 20 MPH...WITH GUSTS UP TO 30 MPH CAN BE
  EXPECTED. 

* RELATIVE HUMIDITY WILL BOTTOM OUT IN THE 20 TO 25 PERCENT RANGE.

* STRONG WINDS AND LOW RELATIVE HUMIDITY WILL CREATE AN ENHANCED
  ENVIRONMENT FOR WILD FIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

GEOGERIAN
3 follow-up statements
094 
WWUS83 KJKL 091406
RFWJKL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE JACKSON KY
1006 AM EDT MON APR 9 2012

...RED FLAG WARNING THIS AFTERNOON AND EARLY EVENING...

.A COLD FRONT WILL PASS THROUGH THE AREA THIS AFTERNOON...CAUSING
WINDS TO BECOME BRISK AND GUSTY. ADDITIONALLY...THE AIR WILL REMAIN
DRY...WITH VERY LOW HUMIDITY EXPECTED DURING THE AFTERNOON AND EARLY 
EVENING.

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-092300-
/O.CON.KJKL.FW.W.0002.120409T1700Z-120409T2300Z/
FLEMING-MONTGOMERY-BATH-ROWAN-ESTILL-POWELL-MENIFEE-ROCKCASTLE-
JACKSON-PULASKI-LAUREL-WAYNE-MCCREARY-WHITLEY-KNOX-BELL-HARLAN-
ELLIOTT-MORGAN-JOHNSON-WOLFE-MAGOFFIN-FLOYD-LEE-BREATHITT-KNOTT-
OWSLEY-PERRY-CLAY-LESLIE-LETCHER-MARTIN-PIKE-
1006 AM EDT MON APR 9 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
7 PM EDT THIS EVENING FOR STRONG WIND AND LOW RELATIVE HUMIDITY
FOR EASTERN KENTUCKY...

* CRITICAL FIRE WEATHER CONDITIONS WILL PEAK BETWEEN 1 PM AND 7 PM 
  TODAY. 

* WEST WINDS OF 10 TO 20 MPH...WITH GUSTS UP TO 30 MPH CAN BE 
  EXPECTED. 

* RELATIVE HUMIDITY WILL BOTTOM OUT IN THE 20 TO 25 PERCENT 
  RANGE.

* THE COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITY WILL
  CREATE AN ENHANCED ENVIRONMENT FOR WILD FIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

GEOGERIAN/HAL
679 
WWUS83 KJKL 091953
RFWJKL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE JACKSON KY
353 PM EDT MON APR 9 2012

...RED FLAG WARNING CONTINUES INTO EARLY THIS EARLY EVENING...

.A COLD FRONT PASSING THROUGH THE AREA IS CAUSING WINDS TO BECOME
BRISK AND GUSTY. ADDITIONALLY...THE AIR WILL REMAIN DRY...WITH LOW
HUMIDITY EXPECTED IN MANY AREAS INTO AND EARLY IN THE EVENING.

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-092300-
/O.CON.KJKL.FW.W.0002.000000T0000Z-120409T2300Z/
FLEMING-MONTGOMERY-BATH-ROWAN-ESTILL-POWELL-MENIFEE-ROCKCASTLE-
JACKSON-PULASKI-LAUREL-WAYNE-MCCREARY-WHITLEY-KNOX-BELL-HARLAN-
ELLIOTT-MORGAN-JOHNSON-WOLFE-MAGOFFIN-FLOYD-LEE-BREATHITT-KNOTT-
OWSLEY-PERRY-CLAY-LESLIE-LETCHER-MARTIN-PIKE-
353 PM EDT MON APR 9 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING
FOR STRONG WIND AND LOW RELATIVE HUMIDITY FOR EASTERN KENTUCKY...

* CRITICAL FIRE WEATHER CONDITIONS WILL PEAK THROUGH EARLY THIS
  EVENING.

* WEST WINDS OF 10 TO 20 MPH...WITH GUSTS UP TO 30 MPH ARE 
  EXPECTED. 

* RELATIVE HUMIDITY WILL BOTTOM OUT IN THE 20 TO 25 PERCENT 
  RANGE. 

* THE COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITY WILL 
  CREATE AN ENHANCED ENVIRONMENT FOR WILD FIRES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

GEOGERIAN/HAL/JP
891 
WWUS83 KJKL 092309
RFWJKL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE JACKSON KY
709 PM EDT MON APR 9 2012

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-100015-
/O.EXP.KJKL.FW.W.0002.000000T0000Z-120409T2300Z/
FLEMING-MONTGOMERY-BATH-ROWAN-ESTILL-POWELL-MENIFEE-ROCKCASTLE-
JACKSON-PULASKI-LAUREL-WAYNE-MCCREARY-WHITLEY-KNOX-BELL-HARLAN-
ELLIOTT-MORGAN-JOHNSON-WOLFE-MAGOFFIN-FLOYD-LEE-BREATHITT-KNOTT-
OWSLEY-PERRY-CLAY-LESLIE-LETCHER-MARTIN-PIKE-
709 PM EDT MON APR 9 2012

...RED FLAG WARNING FOR EASTERN KENTUCKY HAS EXPIRED...

WINDS CONTINUE TO DECREASE AND RELATIVE HUMIDITIES HAVE INCREASED
ABOVE 25 PERCENT. THEREFORE...THE RED FLAG WARNING HAS BEEN ALLOWED
TO EXPIRE.

HOWEVER...WINDS WILL REMAIN GUSTY ON RIDGETOPS FOR ANOTHER HOUR OR
TWO WITH RELATIVE HUMIDITY GRADUALLY CLIMBING TO 30 PERCENT OR
HIGHER.

$$

JP

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 4:53 PM EDTFreeze WatchJKLBath, Bell, Breathitt, Clay, Elliott, Estill and 27 more23 hr

Nearby

Red Flag Warnings in Kentucky, 2012Every red flag warning in 2012

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.