FNAK79 PAFG 211709
FWSAFG

SPOT FORECAST FOR CHENA LAKE RX...BLM/ALASKA FIRE SERVICE MILITARY ZONE
NATIONAL WEATHER SERVICE FAIRBANKS AK
909 AM AKDT THU MAY 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1200 AKDT ON MAY 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

A SURFACE THERMAL TROUGH WILL SET UP OVER THE AREA
WHICH WILL INCREASE THE CHANCE FOR ISOLATED AFTERNOON SHOWERS
TODAY AND FRIDAY AS THE THERMAL TROUGH STRENGTHENS.
THE CHANCE FOR SHOWERS WILL CONTINUE INTO THE WEEKEND AND
THE ATMOSPHERE COULD BECOME UNSTABLE ENOUGH FOR ISOLATED
THUNDERSTORMS OVER THE AREA FRIDAY AND SATURDAY EVENING
DUE TO LOW LEVEL CONVERGENCE ALONG THE SURFACE TROUGH AND INSTABILITY
AT 500 MB AS HEIGHTS WILL LOWER DUE TO EMBEDDED SHORTWAVES
IN THE SOUTHEAST FLOW ALOFT.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). ISOLATED RAIN
                    SHOWERS.
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH.
CWR.................5 PERCENT.
LAL.................1.
MIXING HEIGHT.......7600 FT AGL.
MIXING WINDS........NORTHWEST 5 TO 15 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). ISOLATED RAIN
                    SHOWERS.
MIN TEMPERATURE.....AROUND 45.
MAX HUMIDITY........50 PERCENT.
WIND (20 FT)........LIGHT WINDS.
CWR.................5 PERCENT.
LAL.................1.
MIXING HEIGHT.......2500 FT AGL.
MIXING WINDS........NORTHWEST 5 TO 15 MPH.

.FRIDAY...

SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). ISOLATED SHOWERS. ISOLATED
                    THUNDERSTORMS IN THE EVENING.
MAX TEMPERATURE.....AROUND 68.
MIN HUMIDITY........35 PERCENT.
WIND (20 FT)........LIGHT WINDS.
CWR.................5 PERCENT.
LAL.................2.
MIXING HEIGHT.......7600 FT AGL.
MIXING WINDS........NORTHWEST 5 TO 15 MPH.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...
MOSTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 40S.
HIGHS IN THE LOWER 70S. NORTHEAST WINDS 5 TO 15 MPH.
.SUNDAY...
MOSTLY CLOUDY WITH ISOLATED SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
NORTHEAST WINDS 5 TO 15 MPH.
.MEMORIAL DAY...
MOSTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
LIGHT WINDS.

$$
FORECASTER...KRYSTON
REQUESTED BY...RANDY LENON
TYPE OF REQUEST...PRESCRIBED
.TAG 20090521.CHENA.03/AFG