Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 302052
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
252 PM MDT MON MAR 30 2015

.SHORT TERM...TONIGHT THROUGH WEDNESDAY...TODAY WILL BE THE LAST
TIME WE SEE VALLEY TEMPERATURES IN THE 70S FOR AWHILE...AT LEAST
THROUGH EARLY NEXT WEEK. THE WARM SOUTHWEST FLOW ALOFT WILL SHIFT
EAST TONIGHT...FOLLOWED BY A COLD FRONT ON TUESDAY. THE FRONT WILL
BE FOLLOWED BY INCREASING WINDS THROUGH THE DAY...BECOMING WINDY
BY AFTERNOON. WINDS WILL APPROACH ADVISORY LEVELS /SUSTAINED 30
MPH AND/OR GUSTS TO 45 MPH/ LATE IN THE AFTERNOON THROUGH THE
EVENING ACROSS THE UPPER TREASURE VALLEY /SOUTHEAST OF BOISE/ INTO
THE WESTERN MAGIC VALLEY...SOUTH TO THE NEVADA BORDER. SHOWERS
WILL ALSO MOVE INTO THE AREA...MAINLY ACROSS THE NORTH ALONG WITH
A SLIGHT CHANCE OF AFTERNOON THUNDERSTORMS IN THE CENTRAL IDAHO
MOUNTAINS. SHOWERS WILL LINGER ACROSS THE NORTHERN HIGH TERRAIN
TUESDAY NIGHT THROUGH WEDNESDAY AS ANOTHER TROUGH ENTERS THE
PACIFIC NORTHWEST. SNOW LEVELS WILL LOWER TO AROUND 3000 FEET
TUESDAY NIGHT THROUGH WEDNESDAY. WINDS WILL BE WEAKER ON
WEDNESDAY...BUT IT WILL REMAIN BREEZY IN THE WESTERN MAGIC VALLEY.
TEMPERATURES WILL BE TRENDING DOWNWARD BOTH DAYS...COOLING TO
BELOW NORMAL ON WEDNESDAY.

.LONG TERM...WEDNESDAY NIGHT THROUGH MONDAY...EXPECTING AN ACTIVE
WEATHER PATTERN THROUGH THE MID TO LONG RANGE FORECASTS. THE FIRST
TROUGH WILL MAKE IT THROUGH THE REGION BY THURSDAY
NIGHT...BRINGING WIDESPREAD SHOWERS TO THE REGION...AND A CHANCE
OF THUNDER TO THE WEST CENTRAL AND BOISE MOUNTAINS THURSDAY
EVENING. TEMPERATURES WILL BE 5-7 DEGREES BELOW NORMAL. A LOW
AMPLITUDE RIDGE WILL BEGIN TO BUILD BACK OVER THE REGION FRIDAY
INTO SATURDAY ACCOMPANIED BY DRY WEATHER AND A GENERAL WARMING
TREND TO NEAR NORMAL TEMPERATURES. THE NEXT SYSTEM WILL MOVE IN
OFF THE GULF OF ALASKA BEGINNING SATURDAY NIGHT. SOME
DISCREPANCIES EXIST BETWEEN THE MODELS AS TO WHETHER IT WILL BE A
CLOSED-LOW SYSTEM. THIS WILL AFFECT TIMING AND PLACEMENT OF
PRECIPITATION. FOR NOW...EXPECTING WIDESPREAD PRECIPITATION...BEST
CHANCE IN THE MOUNTAINS...AND TEMPERATURES DROPPING TO 5-10
DEGREES BELOW NORMAL. SNOW LEVELS WILL BE BETWEEN 4-6 KFT FOR THE
DURATION OF THE PERIOD.

&&

.AVIATION...VFR WITH SCT HIGH CLOUDS. SURFACE WINDS 10 KTS OR
LESS. COLD FRONT EXPECTED TO MOVE THROUGH AFTER 31/18Z BRINGING
GUSTS UP TO 35 KTS. WINDS ALOFT NEAR 10K FT MSL...SOUTHWEST 15-25
KTS.

&&

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

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...BW
LONG TERM....EP/AB
AVIATION.....EP/AB


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