Wind Advisory 10, NWS Boise, ID

285 
WWUS75 KBOI 091652
NPWBOI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOISE ID
1052 AM MDT MON MAY 9 2016

...GUSTY NORTHWEST WINDS TODAY IN THE UPPER TREASURE VALLEY AND
WESTERN MAGIC VALLEY...

.A FAST-MOVING UPPER LEVEL TROUGH WILL SWING SOUTHEAST ACROSS THE
REGION TODAY...HELPING TO INCREASE WINDS AT THE SURFACE IN THE 
UPPER TREASURE VALLEY AND WESTERN MAGIC VALLEY. SUSTAINED WINDS
OF 30 MPH WITH GUSTS TO 45 MPH ARE EXPECTED FROM NOON TO 9 PM MDT.

IDZ014-016-100300-
/O.CON.KBOI.WI.Y.0010.160509T1800Z-160510T0300Z/
UPPER TREASURE VALLEY-WESTERN MAGIC VALLEY-
1052 AM MDT MON MAY 9 2016

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING...

* WINDS...WEST TO NORTHWEST 30 MPH WITH GUSTS TO 45 MPH.

* TIMING...STRONGEST FROM 2 PM THROUGH 7 PM MDT.

* IMPACTS...WINDS OF THIS MAGNITUDE CAN MAKE ROAD VEHICLES
  DIFFICULT TO CONTROL...ESPECIALLY ON NORTH-SOUTH ORIENTED ROADS
  WHERE CROSSWINDS WILL CREATE HAZARDOUS TRAVEL CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 40 MPH ARE
EXPECTED FOR A PERIOD OF THREE HOURS OR MORE. WINDS THIS STRONG
CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES.
USE EXTRA CAUTION.

&&

$$

028 
WWUS75 KBOI 100248
NPWBOI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOISE ID
848 PM MDT MON MAY 9 2016

IDZ014-016-100400-
/O.EXP.KBOI.WI.Y.0010.000000T0000Z-160510T0300Z/
UPPER TREASURE VALLEY-WESTERN MAGIC VALLEY-
848 PM MDT MON MAY 9 2016

...WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING...

WINDS HAVE DIMINISHED BELOW ADVISORY CRITERIA.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
844 PM MDT SUN MAY 8 2016

.DISCUSSION...A DRY AND STABLE NORTHWEST FLOW HAS ARRIVED...WITH
THE MOIST UNSTABLE AIR MASS PUSHED AWAY TO OUR SOUTHEAST. WILL
UPDATE THE FORECAST TO END SHOWERS AND THUNDERSTORMS IN SW IDAHO
THIS EVENING...EXCEPT WILL LEAVE ISOLATED SHOWERS IN THE FORECAST
FOR EASTERN VALLEY COUNTY TONIGHT. AN UPPER LOW IN SOUTHERN
BRITISH COLUMBIA WILL DRAG A COLD FRONT THROUGH THE AREA ON MONDAY
AS THE LOW MOVES INTO THE IDAHO PANHANDLE. SHOWERS WILL BE LIMITED
TO THE NORTHERN MTNS NEAR THE CENTER OF THE LOW. THE FRONT WILL
BRING COOLER TEMPERATURES ALONG WITH GUSTY NORTHWEST
WINDS...ESPECIALLY FROM MOUNTAIN HOME EAST INTO THE MAGIC VALLEY
WHERE WINDS WILL BE NEAR ADVISORY LEVELS.

&&

.AVIATION...VFR UNDER MOSTLY CLEAR SKIES.  SURFACE WINDS
SOUTHWEST TO NORTHWEST GENERALLY 12 KNOTS OR LESS...EXCEPT
SOUTHWESTERLY WINDS 15-25 KNOTS IN THE SNAKE RIVER PLAIN EAST OF
KMUO THROUGH THE NIGHT.  WINDS ALOFT NORTHWESTERLY 20-30 KNOTS UP
THROUGH 10K FEET MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TONIGHT THROUGH TUESDAY...DRIER AND MORE STABLE AIR
IS GRADUALLY SPREADING OVER THE FORECAST AREA THIS AFTERNOON AS
THE FLOW ALOFT TURNS TO THE NORTHWEST. SHOWERS AND A FEW
THUNDERSTORMS HAVE DEVELOPED THIS AFTERNOON OVER THE HIGHER
TERRAIN ON THE IDAHO SIDE. SHOWERS AND THUNDERSTORMS WILL BE
LIMITED IN COVERAGE AND DIMINISH WITH SUNSET.

A SHORTWAVE TROUGH CURRENTLY NEAR VANCOUVER ISLAND WILL MOVE SOUTHEAST
ACROSS THE FORECAST AREA ON MONDAY. THIS SYSTEM WILL BE ACCOMPANIED
BY A COLD FRONT CURRENTLY SITUATED FROM NORTHEAST WASHINGTON
ACROSS CENTRAL OREGON. LIMITED MOISTURE WITH THIS SYSTEM AND GUSTY
NORTHWEST WINDS WILL BE THE PRIMARY IMPACT ON MONDAY AS THE COLD
FRONT SWEEPS ACROSS THE AREA. FORECAST WIND SPEEDS LOOK LIKE THEY
WILL BE JUST BELOW ADVISORY CRITERIA ACROSS THE WESTERN MAGIC
VALLEY AND UPPER TREASURE VALLEY EAST OF MOUNTAIN HOME. DAYTIME
HIGH TEMPERATURES WILL DROP OFF 10-15 DEGREES ON MONDAY COMPARED
TO TODAY. SHOWERS AND ISOLATED THUNDERSTORMS WILL BE LIMITED TO
THE HIGH TERRAIN ACROSS THE NORTH AS THE SYSTEM MOVES THROUGH WITH
PRECIPITATION AMOUNTS ON THE LIGHT SIDE. ENOUGH INSTABILITY FOR
A SLIGHT CHANCE OF THUNDERSTORMS MONDAY AFTERNOON GENERALLY NORTH
OF A LINE FROM NORTHERN CAMAS COUNTY TO THE WALLOWA MOUNTAINS IN
NORTHERN BAKER COUNTY.

NORTHERLY FLOW WILL BE OVER THE AREA ON TUESDAY AS THE SHORTWAVE
TROUGH DEPARTS. DAYTIME HIGH TEMPERATURES WILL BEGIN TRENDING UP
WITH A FEW SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS OVER THE
HIGH TERRAIN ACROSS EASTERN MOST PORTIONS OF THE FORECAST AREA.

LONG TERM...TUESDAY NIGHT THROUGH FRIDAY...DRY NORTHWEST FLOW OVER
THE REGION WILL TURN NEARLY ZONAL OVERNIGHT WEDNESDAY...AS A LOW
AMPLITUDE RIDGE BEGINS TO BUILD OVER THE REGION. MAXIMUM HEIGHTS
WILL BE ACHIEVED ON FRIDAY...AS THE FLOW TURNS AGAIN...THIS TIME
FROM THE SOUTHWEST. TEMPERATURES WILL INCREASE 5-10 DEGREES EACH DAY
DURING THIS PERIOD...REACHING ABOUT 15 DEGREES ABOVE NORMAL BY
FRIDAY.

FRIDAY NIGHT THROUGH MONDAY...RIDGE CONTINUES TO BREAK DOWN SATURDAY
WITH A TROUGH PUSHING INTO THE AREA FROM THE NORTHWEST. MODELS
CONTINUE TO DIVERGE WITH TIMING OF THIS TROUGH AND AMOUNT OF
PRECIPITATION SO CONFIDENCE REMAINS LOW FOR THIS PERIOD.
TEMPERATURES WILL CONTINUE TO BE 5 TO 7 DEGREES ABOVE NORMAL.

&&

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

&&

WWW.WEATHER.GOV/BOISE
WWW.FACEBOOK.COM/NWSBOISE
WWW.TWITTER.COM/NWSBOISE

DISCUSSION...BW
AVIATION.....JA
PREV SHORT TERM...TL
PREV LONG TERM....AB/JC