FNUS73 KJKL 032212
FWSJKL

SPOT FORECAST FOR ROCK BRIDGE...US FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSON KY
612 PM EDT SAT APR 3 2010

FORECAST IS BASED ON REQUEST TIME OF 1752 EDT ON APRIL 03.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

...BREEZY AND DRY EARLY THEN IMPROVING CONDITIONS...

.DISCUSSION...WINDS WILL DECREASE AND RELATIVE HUMIDITIES WILL GRADUALLY
RECOVER THROUGH THE EVENING AS A COLD FRONT SLIDES ACROSS EASTERN
KENTUCKY. UNTIL SUNSET...GUSTY WINDS AND LOWER RELATIVE HUMIDITIES
WILL BE A LARGE CONCERN PARTICULARLY OVER THE NEXT HOUR OR SO.

HIGH PRESSURE WILL BE QUICK TO TRANSIT THE AREA TONIGHT WITH
SOUTHERLY FLOW REDEVELOPING BY TOMORROW AFTERNOON. DECENT SUBSIDENCE
AND DEEP MIXING WILL HELP BRING DRY AIR BACK DOWN INTO THE BOUNDARY
LAYER SUNDAY AFTERNOON...EFFECTIVELY DRIVING SURFACE DEW POINTS AND
RELATIVE HUMIDITIES LOW ENOUGH...15 TO 25 PERCENT...TO CREATE AN
ENHANCED THREAT FOR WILDFIRES.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....45 TO 50.
MAX HUMIDITY........35 PERCENT EARLY TO 70 PERCENT LATE.
WIND (20 FT)........WINDS WEST SOUTHWEST AT 10 TO 15 MPH WITH GUSTS
                    TO 25 MPH EARLY THEN BECOMING LIGHT.
SURROUNDING RIDGE...SOUTHWEST 10 TO 15 MPH GUSTING TO 25 MPH EARLY
                    THEN LIGHT.
 UPR SLP/RIDGETOP...SOUTHWEST 10 TO 15 MPH GUSTING TO 25 MPH EARLY
                    THEN LIGHT.
POP.................10 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

TIME (EDT)      8 PM   10 PM  MIDNGT 2 AM   4 AM   6 AM
SKY (%).........19     15     11     8      9      11
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............69     62     58     54     52     50
RH..............39     43     48     56     60     66
20 FT WIND......W 7    SW 5   SW 2   S 3    S 2    S 2
20 FT WIND GUST.15     10     5      5      5      5
HAINES INDEX....5      5      5      5      5      5

.SUNDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 10 MPH IN
                    THE AFTERNOON.
SURROUNDING RIDGE...SOUTHWEST 5 TO 10 MPH.
 UPR SLP/RIDGETOP...SOUTHWEST 5 TO 10 MPH.
POP.................0 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6600 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
DISPERSION INDEX....40.

TIME (EDT)      8 AM   10 AM  NOON   2 PM   4 PM   6 PM
SKY (%).........13     13     13     13     14     16
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............49     59     67     73     76     76
RH..............70     56     39     26     20     20
20 FT WIND......S 2    S 2    S 3    S 5    S 6    SW 6
20 FT WIND GUST.5      5      5             10     10
HAINES INDEX....5      5      5      5      5      5

$$
FORECASTER...GREIF
REQUESTED BY...FREDA NEAL
TYPE OF REQUEST...WILDFIRE
.TAG 20100403.ROCKB.01/JKL