Wind Advisory 19, NWS Boise, ID

843 
WWUS75 KBOI 202048
NPWBOI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOISE ID
148 PM MST TUE NOV 20 2012

ORZ061-063-210000-
/O.CON.KBOI.WI.Y.0019.000000T0000Z-121121T0000Z/
HARNEY COUNTY-MALHEUR COUNTY-
148 PM MST TUE NOV 20 2012 /1248 PM PST TUE NOV 20 2012/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS
AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS
AFTERNOON. 

* WINDS...SOUTH TO SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS TO 55
  MPH.

* TIMING...WINDS HAVE BEEN STRONG AND GUSTY AT HIGHER ELEVATIONS.
  THESE STRONGER WINDS CONTINUE TO MIX DOWN TO LOWER ELEVATIONS
  AND WILL CONTINUE THROUGH LATE AFTERNOON TODAY. 

* IMPACTS...DIFFICULT DRIVING CONDITIONS ESPECIALLY FOR HIGH 
  PROFILE VEHICLES. EXPECT STRONG CROSS WINDS ALONG PORTIONS OF 
  HIGHWAYS 78...95...AND 205. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN
MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES.
USE EXTRA CAUTION.

&&

$$

640 
WWUS75 KBOI 202344
NPWBOI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOISE ID
444 PM MST TUE NOV 20 2012

...WIND ADVISORY EXPIRES...

.GUSTY SOUTH AND SOUTHWEST WINDS IN EASTERN OREGON HAVE EASED
AND THE WIND ADVISORY FOR THAT AREA WILL EXPIRE EFFECTIVE 400 PM
PST.

ORZ061-063-210045-
/O.EXP.KBOI.WI.Y.0019.000000T0000Z-121121T0000Z/
HARNEY COUNTY-MALHEUR COUNTY-
444 PM MST TUE NOV 20 2012 /344 PM PST TUE NOV 20 2012/

...WIND ADVISORY WILL EXPIRE AT 5 PM MST /4 PM PST/ THIS
AFTERNOON...

THE WIND ADVISORY FOR THE SOUTHERN PARTS OF HARNEY AND MALHEUR
COUNTIES WILL EXPIRE AT 5 PM MST /4 PM PST/ THIS AFTERNOON.

WIND GUSTS TODAY WERE GENERALLY BETWEEN 35 AND 45 MPH AT LOW
ELEVATIONS BUT 40 TO 50 MPH ABOVE THE 6000 FOOT LEVEL. WINDS WILL
STAY BELOW ADVISORY LEVELS TONIGHT BUT WILL INCREASE AGAIN AND
SHIFT TO WEST WEDNESDAY MORNING AS A COLD FRONT MOVES THROUGH.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
330 AM MST TUE NOV 20 2012

.SHORT TERM...TODAY THROUGH WEDNESDAY...IMPRESSIVE MOIST PLUME
DRIVEN BY STRONG SOUTHWEST WINDS WILL CONTINUE TO DELIVER
PRECIPITATION TO THE REGION THROUGH WEDNESDAY. THE STRONGER WINDS
ALOFT WILL ENHANCE THE PRECIPITATION IN THE MOUNTAINS DUE TO TERRAIN
FORCING. THE HIGHEST AMOUNTS WILL BE IN THE BOISE/WEST CENTRAL
MOUNTAINS WHERE QPF TOTALS WILL BE UP TO AN INCH IN THE VALLEYS AND
1-2 INCHES IN THE MOUNTAINS. SNOW LEVELS WILL REMAIN ABOVE 7000 FEET
THEN FALL TO VALLEY FLOORS TOWARD THE END OF THE PRECIPITATION EVENT
WEDNESDAY AFTERNOON. TOTAL SNOWFALL AMOUNTS WILL BE A FOOT OR MORE
ABOVE 7000 FEET. WINDS WILL REMAIN GUSTY...ESPECIALLY IN PORTIONS OF
SOUTHEAST OREGON WHERE WE WILL HOIST A WIND ADVISORY FOR THIS
AFTERNOON IN HARNEY COUNTY AND SOUTHERN MALHEUR COUNTY. WINDS THERE
HAVE ALREADY GUSTED TO ABOVE 50 MPH ON THE RIDGES AND SOME OF THOSE
STRONGER WINDS WILL LIKELY MIX DOWN TO THE LOWER VALLEYS THIS
AFTERNOON. A COLD FRONT WILL MOVE THROUGH ON WEDNESDAY WITH SNOW
LEVELS FALLING TO AROUND 5000 FEET MSL BY AFTERNOON. HOWEVER...
PRECIPITATION WILL TAPER OFF AND ANY SNOWFALL ACCUMULATIONS ABOVE
5000 FEET WILL BE LIGHT.

.LONG TERM...WEDNESDAY NIGHT THROUGH MONDAY...PASSAGE OF THE UPPER
TROUGH WEDNESDAY NIGHT WILL CUT OFF PRECIPITATION OVER THE FORECAST
AREA ON THURSDAY. THE WEST-CENTRAL AND BOISE MTNS WILL SEE SNOW
SHOWERS INTO THURSDAY MORNING AS SNOW LEVELS DROP BELOW 4K FEET MSL.
ACCUMULATIONS WILL BE LIGHT. SURFACE HIGH IS QUICK TO BUILD IN WITH
A 1030 MB CENTER IN VICINITY OF THE ID/OR BORDER BY 12Z THURSDAY
MORNING. THIS WILL CUT OFF THE WIND AND WITH ANY CLEARING COULD LEAD
TO DEVELOPMENT OF FOG. THE HIGH SHIFTS EAST SO BY FRIDAY MORNING THE
PRESSURE GRADIENT WILL FAVOR AN EAST WIND IN OPEN VALLEYS WHICH
COULD BE ENOUGH TO PROHIBIT FOG DEVELOPMENT. THAT WOULDN/T BE THE
CASE IN SHELTERED MTN VALLEYS WHERE WINDS WOULD REMAIN LIGHT.
ALOFT...UPPER RIDGE BUILDS OVER THE AREA THURSDAY AND FRIDAY FOR DRY
WEATHER. A WEAK SYSTEM FLATTENS THE RIDGE AND INCREASES THE CHANCE
OF PRECIPITATION ACROSS THE REGION SATURDAY AND SUNDAY. THE MAIN
ENERGY WITH THIS FEATURE TRACKS ACROSS THE ID PANHANDLE SO NOT
EXPECTING A LOT OF PRECIPITATION. FOR EARLY NEXT WEEK MODELS SHOW A
DRIER NW FLOW DEVELOPING OVER THE PAC NW. TEMPERATURES ARE AT OR
SLIGHTLY ABOVE NORMAL THROUGH SUNDAY... POSSIBLY DROPPING BELOW
NORMAL EARLY NEXT WEEK.

&&

.AVIATION...GUSTY SURFACE WINDS WITH STRONG SW WINDS ALOFT WILL
CONTINUE THROUGH WEDNESDAY AFTERNOON. SURFACE GUSTS IN SE OREGON TO
35KTS AND TO 25 KTS IN SW IDAHO. SPEEDS ALOFT ARE 40-70 KTS ABOVE 6K
FEET MSL. WIDESPREAD LOW-VFR CEILINGS WILL OBSCURE MTNS IN E-CENTRAL
OREGON AND W-CENTRAL IDAHO WITH PERIODS OF MVFR CONDITIONS IN MTN
VALLEYS. SNOW LEVELS WILL BE 7-8K FEET MSL. VFR ACROSS LOWER
ELEVATION VALLEYS INCLUDING SNAKE RIVER THROUGH WEDNESDAY.

&&

.HYDROLOGY...COPIOUS PRECIPITATION AMOUNTS ARE EXPECTED IN THE
BOISE/WEST CENTRAL MOUNTAINS OVER THE NEXT 36 HOURS. UP TO AN INCH
RAINFALL IS FORECAST IN THE VALLEYS WITH AN INCH OR MORE IN THE
MOUNTAINS. SNOW TOTALS WILL AMOUNT TO A FOOT OR MORE ABOVE 7000
FEET. WHILE THERE WILL BE SOME RISES ON AREA STREAMS AND RIVERS...NO
FLOODING IS EXPECTED. HOWEVER...ROCK FALLS ARE POSSIBLE ALONG IDAHO
55 AND THE BANKS-LOWMAN ROAD...ESPECIALLY IN THE VICINITY OF THE
SPRINGS FIRE BURN SCAR.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...WIND ADVISORY FROM 11 AM MST /10 AM PST/ THIS MORNING TO 5 PM
     MST /4 PM PST/ THIS AFTERNOON ORZ061-063.
&&

WEATHER.GOV/BOISE

SHORT TERM...BW
LONG TERM....DG
AVIATION.....DG
HYDROLOGY....BW

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BOISE ID
551 AM MST MON NOV 19 2012

IDZ011>016-028>030-033-ORZ061>064-201300-
WEST CENTRAL MOUNTAINS-LOWER TREASURE VALLEY ID-BOISE MOUNTAINS-
UPPER TREASURE VALLEY-SOUTHWEST HIGHLANDS-WESTERN MAGIC VALLEY-
CAMAS PRAIRIE-OWYHEE MOUNTAINS-SOUTHERN TWIN FALLS COUNTY-
UPPER WEISER RIVER-HARNEY COUNTY-BAKER COUNTY-MALHEUR COUNTY-
LOWER TREASURE VALLEY OR-
551 AM MST MON NOV 19 2012 /451 AM PST MON NOV 19 2012/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
IDAHO...SOUTHWEST IDAHO...WEST CENTRAL IDAHO...NORTHEAST OREGON
AND SOUTHEAST OREGON.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.