FNUS76 KSEW 250701
FWSSEW

SPOT FORECAST FOR GILLIGAN...WASHINGTON DNR
NATIONAL WEATHER SERVICE SEATTLE WA
1201 AM PDT SAT JUL 25 2009

FORECAST IS BASED ON REQUEST TIME OF 2338 PDT ON JULY 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...THE NEXT 7 DAYS WILL OFFER SOME OF THE MOST CRITICAL
FIRE WEATHER FOR WESTERN WASHINGTON IN AT LEAST A FEW YEARS. THIS
WEEKEND WILL FEATURE A GRADUAL WARMING TREND WITH TEMPERATURES BACK
ABOVE NORMAL ON SATURDAY. AN ISOLATED LIGHTNING RISK WILL REMAIN
OVER THE CASCADES AND IN THE CASCADE FOOTHILLS SATURDAY AFTERNOON
AND EVENING. ON SUNDAY MORNING...THE LIGHTNING RISK COULD BECOME
CONSIDERABLE FOR MUCH MORE OF WESTERN WASHINGTON. THE LIGHTNING
THREAT SHOULD END ON MONDAY...BUT THEN 5 OR MORE DAYS OF INTENSE
HEAT ARE EXPECTED TO BEGIN. A THERMAL PRESSURE TROUGH SHOULD
BECOME WELL ESTABLISHED OVER WESTERN WASHINGTON ON TUESDAY MORNING
AND LINGER THROUGH THE END OF THE WEEK...BRINGING CRITICALLY
UNSTABLE CONDITIONS.

SO THE CRITICAL CONDITIONS WILL BE FUELED BY IGNITION POTENTIAL
FROM LIGHTNING THROUGH THE WEEKEND FOLLOWED BY A VERY FAVORABLE
BURNING ENVIRONMENT NEXT WEEK.

 FORECAST FOR 20 FOOT WIND SPEED (VALLEYS AND RIDGE TOPS) ARE 10
 MINUTE AVERAGES REFLECTING RAWS WINDS.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS.
CWR.................LESS THAN 10%.
MIN TEMPERATURE.....AROUND 59.
MAX HUMIDITY........85 PERCENT.
EYE LEVEL WINDS.....SOUTH WIND 3 TO 5 MPH BECOMING NORTH.
HAINES INDEX........2 OR VERY LOW.
LAL.................1.


.SATURDAY...

SKY/WEATHER.........SUNNY THEN BECOMING PARTLY SUNNY. CHANCE OF AFTERNOON
                    AND EVENING THUNDERSTORMS.
CWR.................LESS THAN 10%.
MAX TEMPERATURE.....AROUND 81.
MIN HUMIDITY........47 PERCENT.
EYE LEVEL WINDS.....NORTHEAST WINDS 5 TO 9 MPH SWITCHING TO
                    NORTHWEST LATE AFTERNOON.
HAINES INDEX........2 OR VERY LOW.
LAL.................2.


.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...
PARTLY CLOUDY. LOWS IN THE LOWER 60S. HIGHS IN THE MID 80S.
FREEZING LEVEL 14000 FEET. NORTH WINDS AROUND 8 MPH.
.MONDAY...
MOSTLY CLEAR. LOWS IN THE MID 60S. HIGHS IN THE UPPER 80S.
FREEZING LEVEL 15000 FEET. NORTH WINDS AROUND 11 MPH.
.TUESDAY...
MOSTLY CLEAR. LOWS IN THE UPPER 60S. HIGHS IN THE LOWER 90S.
FREEZING LEVEL 15000 FEET. NORTHEAST WINDS AROUND 3 MPH.

$$
FORECASTER...FELTON
REQUESTED BY...JAY MCMILLEN
TYPE OF REQUEST...WILDFIRE
.TAG 20090724.GILLI.01/SEW