FNUS76 KSEW 161534
FWSSEW

SPOT FORECAST FOR LOWER WEIR BROOM BLOB...FORT LEWIS-MCCHORD
NATIONAL WEATHER SERVICE SEATTLE WA
834 AM PDT TUE JUL 16 2013

FORECAST IS BASED ON IGNITION TIME OF 1230 PDT ON JULY 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

...RISK OF SCATTERED LIGHTNING THIS AFTERNOON THROUGH WEDNESDAY
MORNING...

.DISCUSSION...A THERMAL PRESSURE TROUGH IS EXPECTED TO DEVELOP
OVER WESTERN WASHINGTON TODAY...BRINGING HOT AND DRY CONDITIONS FOR
THIS AFTERNOON. THIS...COMBINED WITH A PASSING UPPER LEVEL TROUGH
WILL CREATE INSTABILITY OVER THE FIRE SITE BY MID TO LATE
AFTERNOON. WITH THIS INSTABILITY...SCATTERED LIGHTNING IS
POSSIBLE THROUGH WEDNESDAY MORNING. NOT MUCH PRECIPITATION IS
EXPECTED WITH THESE STORMS INITIALLY...ALTHOUGH SOME SPOTTY
SHOWERS ARE POSSIBLE DURING THE OVERNIGHT HOURS.

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

.TODAY...

SKY/WEATHER.........SUNNY THEN BECOMING PARTLY SUNNY. ISOLATED
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 88.
MIN HUMIDITY........33 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 3 TO 8 MPH.
MIXING HEIGHT.......600 FT AGL INCREASING TO 3300-3500 FT AGL
                    LATE IN THE MORNING.
TRANSPORT WINDS.....NORTHEAST AROUND 11 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
                    THUNDERSTORMS.
MIN TEMPERATURE.....AROUND 57.
MAX HUMIDITY........87 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 3 TO 6 MPH SHIFTING TO THE WEST
                    3 TO 4 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......3500 FT AGL DECREASING TO 500-1100 FT AGL LATE
                    IN THE EVENING.
TRANSPORT WINDS.....NORTHWEST AROUND 6 MPH.

$$
FORECASTER...REEDY
REQUESTED BY...DAVE CLOUSE
TYPE OF REQUEST...PRESCRIBED
.TAG 20130716.LOWER.01/SEW