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000
FXUS65 KBOI 190901
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
301 AM MDT SUN MAY 19 2013

.SHORT TERM...SHOWERS TODAY WILL BE MOSTLY IN THE MOUNTAINS ON THE
IDAHO SIDE AS DRIER AIR WORKS IN FROM THE NORTHWEST ON THE OREGON
SIDE.  AIR MASS WILL STILL BE UNSTABLE ENOUGH FOR ISOLATED
THUNDERSTORMS THIS AFTERNOON IN THE BOISE MOUNTAINS.  WEST/NORTHWEST
WINDS WILL BE A LITTLE STRONGER THAN YESTERDAY IN THE SNAKE BASIN
BUT NOT ENOUGH FOR ADVISORY.  WINDS LOOK A LITTLE TOO STRONG FOR
VALLEY FOG THIS MORNING AS OCCURRED YESTERDAY MORNING.  TEMPS TODAY
AGAIN A FEW DEGS BELOW NORMAL.

UPPER LOW WILL SLOWLY EXIT EAST TONIGHT AND MONDAY AS UPPER RIDGE
COMES IN FROM THE NORTH PACIFIC.  RIDGE WILL BRING WARMER AND DRIER
AIR MONDAY AND LESS WIND THAN TODAY...BUT NORTHERLY WIND COMPONENT
ALOFT WILL DELAY MAIN WARMING UNTIL TUESDAY.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY..FAIR WEATHER AND WARM
TEMPERATURES ON TUESDAY WILL GIVE WAY TO A MUCH COOLER AND SHOWERY
WEATHER PATTERN WEDNESDAY THROUGH SATURDAY. MODELS ARE IN GOOD
AGREEMENT THAT A LARGE UPPER LEVEL LOW WILL CLOSE OFF OVER THE
PACIFIC NORTHWEST ON WEDNESDAY AND LINGER AROUND THE AREA FOR THE
REST OF THE WEEK. A STRONG SURFACE COLD FRONT WILL SWEEP THROUGH THE
AREA ON WEDNESDAY BRINGING WINDY CONDITIONS TO SOUTHEASTERN OREGON
AND SOUTHWESTERN IDAHO. THERE WILL BE ENOUGH MOISTURE CAUGHT UP IN
THE CIRCULATION OF THIS SYSTEM TO CAUSE SCATTERED RAIN SHOWERS EACH
DAY...ESPECIALLY DURING THE AFTERNOON HOURS WHEN THE ATMOSPHERE WILL
BE MORE UNSTABLE. WE ALSO WOULD NOT BE SURPRISED TO SEE ISOLATED
THUNDERSTORMS LATE IN THE WEEK WHEN THE CENTER OF THE DEEP LOW MOVES
DIRECTLY OVER EASTERN OREGON.  TEMPERATURES WILL BE 5 TO 10 DEGREES
BELOW NORMAL WEDNESDAY THROUGH SATURDAY AND COLD ENOUGH FOR SNOW
SHOWERS IN THE MOUNTAINS.

&&

.AVIATION...VFR WITH BROKEN MID-LEVEL CLOUDS CLEARING FROM WEST TO
EAST BY NOON. WEST TO NORTHWEST SFC WINDS WILL INCREASE IN THE
AFTERNOON TO AROUND 20 KTS WITH LOCALLY HIGHER GUSTS TO AROUND 35
KTS VCTY KMUO...KJER...AND KTWF. THE OUTLOOK FOR MONDAY SHOWS LIGHT
WINDS AND MOSTLY CLEAR SKIES OVER SOUTHEASTERN OREGON AND
SOUTHWESTERN IDAHO.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...LC
LONG TERM....JB
AVIATION.....JB