FNUS76 KOTX 230023
FWSOTX

SPOT FORECAST FOR YAKIMA COMPLEX...WAIIMT#1
NATIONAL WEATHER SERVICE SPOKANE WA
523 PM PDT SAT SEP 22 2012

FORECAST IS BASED ON REQUEST TIME OF 1723 MDT ON SEPTEMBER 22.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A LOW PRESSURE SYSTEM WILL MOVE SOUTHEAST ACROSS THE REGION TONIGHT
AND SUNDAY RESULTING IN INCREASING HIGH CLOUD COVER WITH SLIGHTLY
COOLER AND MORE MOIST CONDITIONS. ISOLATED THUNDERSTORMS WILL BE
POSSIBLE OVERNIGHT INTO SUNDAY. THE LOW PRESSURE SYSTEM WILL MOVE
SOUTHEAST OF THE FIRE SUNDAY NIGHT. A COLD FRONT PASSAGE IS EXPECTED
MONDAY NIGHT. THIS FRONT WILL WEAKEN AS IT PUSHES INTO EASTERN
WASHINGTON WITH CHANCES OF ANY RAINFALL EXPECTED TO BE SMALL. THIS
FRONT WILL CONTINUE TO COOL OFF TEMPERATURES AND INCREASE RH VALUES
THROUGH MID WEEK. WINDS WILL BE OUT OF THE SOUTHWEST AHEAD OF THE
FRONT MONDAY THEN SHIFT TO THE NORTHWEST AND BECOME GUSTY BEHIND
THE FRONT ON TUESDAY. FOR WEDNESDAY AND THURSDAY A RIDGE WILL BUILD
WITH WINDS LIGHT AND GENERALLY TERRAIN DRIVEN. ANOTHER COLD FRONT
WILL BRING GUSTY WINDS TO THE AREA FRIDAY INTO SATURDAY WITH LITTLE
RAINFALL EXPECTED.

.SUNDAY...

SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE MORNING. PATCHY SMOKE
                    THROUGH THE DAY.
CWR.................5 PERCENT.
MAX TEMPERATURE.....AROUND 72 IN THE BASIN AND 62 ON THE RIDGE.
MIN HUMIDITY........34 PERCENT IN THE BASIN...42 PERCENT ON RIDGES.
WIND (20 FT)........WEST WINDS 4 TO 8 MPH IN THE MORNING SHIFTING
                    TO THE NORTHEAST 5 TO 8 MPH IN THE AFTERNOON.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE MORNING.
MIXING HEIGHT.......1500 FT AGL IN THE MORNING INCREASING TO 4500
                    FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 5 TO 8 MPH.
LAL.................2.
HAINES INDEX........3 VERY LOW.

.SUNDAY NIGHT...

SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 49 BASIN....56 RIDGES.
MAX HUMIDITY........72 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 3 TO 7 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 4 TO 8 MPH.
LAL.................1.
HAINES INDEX........3 VERY LOW.

.MONDAY...

SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 70 BASIN AND 65 RIDGES.
MIN HUMIDITY........37 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 6 MPH.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 3 TO 7 MPH.
LAL.................1.
HAINES INDEX........3 VERY LOW.

.TUESDAY...PARTLY CLOUDY WITH SMOKE. A SLIGHT CHANCE OF SHOWERS.
LOWS 45 TO 50. HIGHS 75 TO 78 IN THE VALLEYS...60 TO 65 IN THE
MOUNTAINS. NORTHWEST WIND 8 TO 14 MPH...GUSTS TO 25 MPH.

.WEDNESDAY AND THURSDAY...PARTLY CLOUDY WITH SMOKE. LOWS 44 TO 52.
HIGHS 72 TO 82 IN THE VALLEYS...60 TO 68 IN THE MOUNTAINS. NORTHWEST
WIND 3 TO 7 MPH.

.FRIDAY AND SATURDAY...PARTLY CLOUDY WITH SMOKE. LOWS 43
TO 51. HIGHS 71 TO 81 IN THE VALLEYS...61 TO 71 IN THE MOUNTAINS.

$$
FORECASTER...EK
REQUESTED BY...JOE BLAZEK
TYPE OF REQUEST...WILDFIRE
.TAG 20120922.YAKIM.01/OTX