Area Forecast Discussion
Issued by NWS Boise, ID

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

000
FXUS65 KBOI 281558
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
958 AM MDT SAT MAR 28 2015

.DISCUSSION...COLD FRONT CONTINUES TO MOVE RAPIDLY EASTWARD THIS
MORNING...WITH THE LATEST POSITION NEAR TWIN FALLS/JEROME. WINDS
ALONG THE FRONT ARE AVERAGING 30 MPH SUSTAINED WITH GUSTS TO
AROUND 45 MPH. THESE WINDS WILL PERSIST FOR PORTIONS OF SOUTH-
CENTRAL IDAHO...MAINLY FOR AREAS EAST OF MOUNTAIN HOME INTO THE
WESTERN MAGIC VALLEY. THE WINDS WILL GRADUALLY DIMINISH LATER THIS
AFTERNOON AND THE WIND ADVISORY MAY BE CANCELLED BEFORE THE 6 PM
MDT EXPIRATION. THE WIND ADVISORY WAS CANCELLED FOR THE LOWER
TREASURE VALLEY/OWYHEE MOUNTAINS. SHOWERS ARE RAPIDLY DECREASING
FROM WEST-EAST WITH ISOLATED SHOWERS PERSISTING IN THE CENTRAL
IDAHO MOUNTAINS UNTIL AROUND NOON. WILL UPDATE FORECAST FOR LOWER
POPS TODAY.

&&

.AVIATION...VFR. SLIGHT CHANCE OF RAIN/SNOW SHOWERS IN IDAHO
CENTRAL MOUNTAINS UNTIL 28/18Z. SURFACE WINDS IN THE MAGIC
VALLEY...WEST AT 25 KTS WITH GUSTS TO 40 KTS...AND IN THE TREASURE
VALLEY...NORTHWEST AT 15 KTS WITH GUSTS TO 25 KTS. EVERYWHERE
ELSE...SURFACE WINDS GENERALLY 12 KTS OR LESS. WINDS ALOFT NEAR
10K FT...NORTHWEST 15-25 KTS.

&&

.PREV DISCUSSION...
SHORT TERM...THUNDERSTORMS JUST WEST AND NORTH OF BAKER COUNTY
SHOULD END BEFORE 12Z AS SURFACE COLD FRONT MOVES PAST SUPPORTED BY
FAST EWD-MOVING UPPER TROUGH JUST NORTH OF OUR CWA.  MODELS TAKE THE
COLD FRONT THROUGH OUR IDAHO ZONES BY 18Z FOLLOWED BY GUSTY WEST/
NORTHWEST WINDS.  WIND ADVISORY HAS BEEN ISSUED FOR SOUTH-CENTRAL
IDAHO FROM MID-MORNING THROUGH THIS AFTERNOON.  MOISTURE AND PCPN
SHOULD STAY IN NRN ZONES...SPRINKLES OR BRIEF SHOWERS AS FAR SOUTH
AS THE NRN TREASURE VALLEY THIS MORNING.  INCREASING STABILITY
SHOULD PREVENT THUNDERSTORMS DURING THE DAY.  ABOUT 10 DEGS COOLER
TODAY COMPARED TO FRIDAY.  CLEARING AND COOLER TONIGHT WITH
DIMINISHING WINDS...LOW TEMPS IN THE LOWER TO MID 30S IN THE SNAKE
BASIN...20S ELSEWHERE.  PATCHY FOG TOWARD MORNING IN NRN VALLEYS.
MOSTLY SUNNY AND LESS WINDY SUNDAY WITH HIGH TEMPS MUCH LIKE TODAY.

LONG TERM...SUNDAY NIGHT THROUGH FRIDAY...LOW-AMPLITUDE RIDGE WILL
BE OVER THE REGION SUNDAY NIGHT AND MONDAY FOR DRY CONDITIONS AND
HIGH TEMPERATURES AROUND 15 DEGREES ABOVE NORMAL.  MONDAY NIGHT THE
RIDGE WILL BE PUSHED EAST AS AN UPPER LEVEL TROUGH MOVES INTO THE
PACIFIC NORTHWEST.  LATEST MODEL TREND SEEMS TO BE SLOWING DOWN
TIMING OF PRECIPITATION AS THIS TROUGH MOVES EAST SO LOOKS LIKE DRY
CONDITIONS MONDAY NIGHT WITH PRECIPITATION SPREADING OVER THE REGION
TUESDAY.  WITH THE SLOWER TREND IN THE MODELS DID DECREASE POPS FOR
MONDAY NIGHT.  HIGH TEMPERATURES ON TUESDAY WILL COOL TO NEAR
NORMAL.  A BROAD WEAK TROUGH WILL REMAIN OVER THE REGION FROM
TUESDAY THROUGH THURSDAY WITH A CHANCE OF SHOWERS...MAINLY OVER
NORTHERN ZONES...AND TEMPERATURES NEAR NORMAL.  UPPER LEVEL RIDGE
WILL REBUILD OVER THE REGION FRIDAY FOR A RETURN TO WARMER
TEMPERATURES AND DRY CONDITIONS INTO THE WEEKEND.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...WIND ADVISORY UNTIL 6 PM MDT THIS EVENING IDZ014>016-030.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...BW
AVIATION.....EP
PREV SHORT TERM...LC
PREV LONG TERM....JA


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.