FNUS76 KOTX 202316
FWSOTX

SPOT FORECAST FOR YAKIMA COMPLEX...CWICC
NATIONAL WEATHER SERVICE SPOKANE WA
416 PM PDT THU SEP 20 2012

FORECAST IS BASED ON REQUEST TIME OF 1637 MDT ON SEPTEMBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

...FIRE WEATHER WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH
SATURDAY EVENING...

.DISCUSSION...

AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL REMAIN OVER THE REGION
THROUGH FRIDAY. EXPECT FOR A CONTINUATION OF LIGHT TERRAIN DRIVEN
WINDS AND MOSTLY CLEAR SKIES. NIGHTTIME RH RECOVERIES WILL
IMPROVE OVER FRIDAY NIGHT AND THE WEEKEND AS A WEATHER
DISTURBANCE PUSHES ONSHORE. THIS DISTURBANCE WILL BRING A SMALL
CHANCE FOR ISOLATED DRY THUNDERSTORMS OVER THE FIRE LATE FRIDAY
NIGHT AND CONTINUING THROUGH SATURDAY INTO SATURDAY EVENING.
TEMPERATURES WILL COOL SLIGHTLY WITH AN INCREASE IN RH VALUES
DURING THE WEEKEND. THEN A WEAK COLD FRONT PASSAGE IS EXPECTED
BY TUESDAY THAT MAY PICK UP WINDS OUT OF THE WEST...BUT WILL
CONTINUE A COOLING AND MOISTENING TREND INTO MID WEEK.

.FRIDAY...

SKY/WEATHER.........SUNNY. AREAS OF SMOKE.
CWR.................0 PERCENT.
MAX TEMPERATURE.....NEAR 89 IN THE BASIN AND 77 ON THE RIDGES
MIN HUMIDITY........14 PERCENT IN THE BASIN AND 25 PERCENT ON THE
                    RIDGES.
WIND (20 FT)........DOWNSLOPE/DOWN VALLEY 2 TO 4 MPH IN THE MORNING...
                    BECOMING SOUTHEAST 4 TO 8 MPH BY 1100 AM. GUSTS
                    TO 12 MPH IN THE AFTERNOON.
MIXING HEIGHT.......1000 FT AGL IN THE MORNING INCREASING TO 4000
                    FT AGL AFTER MIDDAY.
TRANSPORT WINDS.....EAST 3 TO 7 MPH.
LAL.................1.
HAINES INDEX........5 MODERATE.

.FRIDAY NIGHT...

SKY/WEATHER.........MOSTLY CLEAR WITH SMOKE IN THE EVENING. CLOUDS
                    INCREASING OVERNIGHT. A SLIGHT CHANCE OF DRY
                    THUNDERSTORMS TOWARD DAWN.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 48 IN THE BASIN AND 55 ON THE RIDGES.
MAX HUMIDITY........66 PERCENT IN THE BASIN AND 50 PERCENT ON THE
                    RIDGES.
WIND (20 FT)........NORTHEAST 4 TO 6 MPH IN THE EVENING
                    BECOMING DOWNSLOPE DOWN VALLEY 2 TO 5 MPH
                    OVERNIGHT.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....NORTH 2 TO 5 MPH.
LAL.................1.
HAINES INDEX........4 LOW.

.SATURDAY...

SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF DRY
                    THUNDERSTORMS.
CWR.................5 PERCENT.
MAX TEMPERATURE.....NEAR 85 IN THE BASIN AND 72 ON THE RIDGES
MIN HUMIDITY........25 PERCENT IN THE BASIN AND 36 PERCENT ON THE
                    RIDGES.
WIND (20 FT)........DOWNSLOPE/DOWN VALLEY 2 TO 5 MPH IN THE MORNING...
                    SOUTHEAST 4 TO 8 MPH IN THE AFTERNOON. GUSTY AND
                    ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......1000 FT AGL IN THE MORNING INCREASING TO 4500
                    FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 3 TO 7 MPH.
LAL.................2.
HAINES INDEX........5 MODERATE.

.OUTLOOK...

.SUNDAY...PARTLY CLOUDY WITH SMOKE. SLIGHT CHANCE OF RAIN SHOWERS...
MAINLY IN THE MORNING. LOWS 47 TO 56. HIGHS 77 TO 82 IN THE VALLEYS...
65 TO 75 IN THE MOUNTAINS. NORTHWEST WIND 3 TO 6 MPH.

.MONDAY THROUGH TUESDAY...PARTLY CLOUDY WITH SMOKE. LOWS 44 TO 54.
HIGHS 72 TO 84 IN THE VALLEYS... 60 TO 74 IN THE MOUNTAINS. NORTHWEST
WIND 4 TO 8 MPH.

.WEDNESDAY THROUGH THURSDAY...PARTLY CLOUDY WITH SMOKE. LOWS 43
TO 51. HIGHS 71 TO 81 IN THE VALLEYS...61 TO 71 IN THE MOUNTAINS.


$$
FORECASTER...RF
REQUESTED BY...JOE BLAZEK
TYPE OF REQUEST...WILDFIRE
.TAG 20120920.YAKIM.01/OTX