Lake Wind Advisory 2, NWS Missoula, MT

808 
WWUS75 KMSO 300902
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
302 AM MDT WED MAR 30 2011

MTZ006-007-301800-
/O.CON.KMSO.WI.Y.0011.110330T1600Z-110331T0300Z/
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
302 AM MDT WED MAR 30 2011

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
9 PM MDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 9 PM
MDT THIS EVENING. 

* IMPACTS/TIMING:SOUTHWEST WINDS WILL INCREASE BY MID MORNING
  ACROSS THE BUTTE AND BLACKFOOT REGIONS AND THE SAPPHIRE
  MOUNTAINS. WINDS WILL CONTINUE THROUGH THE DAY... DECREASING IN
  THE EVENING. HIGH PROFILE VEHICLES SHOULD BE PREPARED FOR STRONG
  WINDS.

* WINDS:SOUTHWEST 25 TO 35 MPH WITH GUSTS TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY
  12 GARRISON TO ELLISTON...MACDONALD PASS

&&

$$

IDZ007-301800-
/O.CON.KMSO.WI.Y.0011.110330T2100Z-110331T0300Z/
OROFINO/GRANGEVILLE REGION-
202 AM PDT WED MAR 30 2011

...WIND ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
8 PM PDT THIS EVENING FOR THE CAMAS PRAIRIE...

A WIND ADVISORY FOR THE CAMAS PRAIRIE REMAINS IN EFFECT FROM 2 PM
THIS AFTERNOON TO 8 PM PDT THIS EVENING. 

* IMPACTS/TIMING:AN INCREASED SURFACE PRESSURE GRADIENT AND STRONG
  MID LEVEL WINDS WILL CREATE STRONG SOUTH WINDS THROUGH THE CAMAS
  PRAIRIE THIS AFTERNOON INTO THIS EVENING. HIGH PROFILE VEHICLES
  SHOULD BE PREPARED FOR STRONG SOUTH WINDS.

* WINDS:SOUTH WINDS 25 TO 35 MPH WITH GUSTS TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...CAMAS PRAIRIE...GRANGEVILLE AND
  VICINITY

&&

$$

MTZ005-301800-
/O.CON.KMSO.WI.Y.0011.110330T1800Z-110331T0300Z/
MISSOULA/BITTERROOT VALLEYS-
302 AM MDT WED MAR 30 2011

...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR THE BITTERROOT VALLEY...

A WIND ADVISORY FOR THE BITTERROOT VALLEY REMAINS IN EFFECT FROM
NOON TODAY TO 9 PM MDT THIS EVENING. 

* IMPACTS/TIMING:AN INCREASED SURFACE PRESSURE GRADIENT WILL
  COMBINE WITH STRONG MID LEVEL WINDS AND RESULT IN VERY WINDY
  CONDITIONS ACROSS THE MISSOULA AND BITTERROOT VALLEYS THIS
  AFTERNOON AND EVENING. THE FOOTHILLS ALONG THE BITTERROOT
  MOUNTAINS COULD SEE GUSTS TO 50 MPH.

* WINDS:SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA

&&

$$

MTZ003-301800-
/O.CON.KMSO.LW.Y.0002.110330T1200Z-110331T0300Z/
FLATHEAD/MISSION VALLEYS-
302 AM MDT WED MAR 30 2011

...LAKE WIND ADVISORY REMAINS IN EFFECT FROM 6 AM THIS MORNING TO
9 PM MDT THIS EVENING FOR FLATHEAD LAKE...

A LAKE WIND ADVISORY FOR FLATHEAD LAKE REMAINS IN EFFECT FROM
6 AM THIS MORNING TO 9 PM MDT THIS EVENING. 

* IMPACTS/TIMING:INCREASED SOUTHWEST WINDS WILL RESULT IN CHOP ON
  THE LAKE THROUGH THE DAY. THE HIGHEST SWELLS ARE EXPECTED
  ACROSS THE MIDDLE AND EAST SHORES FROM LATE MORNING INTO THE
  EVENING.

* WINDS:SOUTH-SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 35 MPH.

* WAVE HEIGHTS: 2 TO 4 FEET...LOCALLY UP TO 5 FEET.

&&

$$

817 
WWUS75 KMSO 301630
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1030 AM MDT WED MAR 30 2011

MTZ003-310300-
/O.CAN.KMSO.LW.Y.0002.000000T0000Z-110331T0300Z/
/O.NEW.KMSO.LW.Y.0003.110330T2000Z-110331T0300Z/
FLATHEAD/MISSION VALLEYS-
1030 AM MDT WED MAR 30 2011

...LAKE WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 PM
MDT THIS EVENING FOR FLATHEAD LAKE...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A LAKE WIND
ADVISORY FOR FLATHEAD LAKE...WHICH IS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 9 PM MDT THIS EVENING. 

* IMPACTS/TIMING:INCREASED SOUTHWEST WINDS WILL RESULT IN CHOP ON
  THE LAKE THROUGH THE DAY. THE HIGHEST SWELLS ARE EXPECTED ACROSS
  THE MIDDLE AND EAST SHORES FROM THIS AFTERNOON THROUGH THIS
  EVENING.

* WINDS:SOUTH-SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 35 MPH.

* WAVE HEIGHTS: 2 TO 4 FEET...LOCALLY UP TO 5 FEET.

A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP
ON THE LAKE. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING.

&&

$$

IDZ007-310300-
/O.EXT.KMSO.WI.Y.0011.110330T1800Z-110331T0300Z/
OROFINO/GRANGEVILLE REGION-
930 AM PDT WED MAR 30 2011

...WIND ADVISORY NOW IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR
THE CAMAS PRAIRIE...

THE WIND ADVISORY FOR THE CAMAS PRAIRIE IS NOW IN EFFECT UNTIL
8 PM PDT THIS EVENING. 

* IMPACTS/TIMING: SOUTH WINDS THROUGH THE CAMAS PRAIRIE WILL
  INCREASE THROUGH THE LATE MORNING AND WILL LAST THROUGH THIS
  EVENING. HIGH PROFILE VEHICLES SHOULD BE PREPARED FOR STRONG
  SOUTH WINDS.

* WINDS:SOUTH WINDS 25 TO 35 MPH WITH GUSTS TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...CAMAS PRAIRIE...GRANGEVILLE AND 
  VICINITY

$$

MTZ005-310300-
/O.EXT.KMSO.WI.Y.0011.110330T2000Z-110331T0300Z/
MISSOULA/BITTERROOT VALLEYS-
1030 AM MDT WED MAR 30 2011

...WIND ADVISORY NOW IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 PM
MDT THIS EVENING FOR THE BITTERROOT VALLEY...

THE WIND ADVISORY FOR THE BITTERROOT VALLEY IS NOW IN EFFECT FROM
2 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING. 

* IMPACTS/TIMING: WINDY CONDITIONS ARE EXPECTED TO BEGIN THIS
  AFTERNOON ACROSS THE MISSOULA AND BITTERROOT VALLEYS AND
  CONTINUE THROUGH THIS EVENING.

* WINDS:SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA

$$

MTZ006-007-310300-
/O.CON.KMSO.WI.Y.0011.000000T0000Z-110331T0300Z/
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
1030 AM MDT WED MAR 30 2011

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

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

* IMPACTS/TIMING: SOUTHWEST WINDS WILL INTENSIFY ACROSS THE BUTTE
  AND BLACKFOOT REGIONS AND THE SAPPHIRE MOUNTAINS DURING TODAY.
  WINDS WILL DIMINISH IN THE EVENING. HIGH PROFILE VEHICLES SHOULD
  BE PREPARED FOR STRONG CROSSWINDS.

* WINDS:SOUTHWEST 25 TO 35 MPH WITH GUSTS TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 
  12 GARRISON TO ELLISTON...MACDONALD PASS

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
348 AM MDT TUE MAR 29 2011

.DISCUSSION...A STRONG UPPER LEVEL JET WILL BE THE MAIN
CONTRIBUTOR TO THE REGIONS WEATHER OVER THE NEXT FEW DAYS. THE
FIRST OF TWO MAIN FEATURES EXPECTED TODAY THROUGH THURSDAY WILL BE
PERSISTENT PRECIPITATION IN THE FORM OF RAIN IN THE VALLEYS AND
SNOW AT MOUNTAIN PASS LEVEL. AS THE UPPER LEVEL JET STRETCHES
ACROSS WESTERN MONTANA AND REMAINS HOVERING OVER THE AREA THROUGH
THURSDAY NIGHT...IT WILL COMBINE WITH PLENTY OF AVAILABLE PACIFIC
MOISTURE AND DELIVER A RATHER STEADY STREAM OF PRECIPITATION TO
THE NORTHERN ROCKIES. SNOW MAY BECOME AN INCONVENIENCE TO THOSE
TRAVELING OVER AREA MOUNTAIN PASSES...BUT THE MAJORITY OF
SNOWFALL IS EXPECTED TO MELT ON ROADWAYS.

THE SECOND FEATURE EXPECTED OVER THE NEXT SEVERAL DAYS WILL BE A
NOTICEABLE INCREASE IN WINDS...PARTICULARLY WEDNESDAY AFTERNOON
THROUGH THURSDAY MORNING. WHILE SOME BREEZY WINDS WILL BE PRESENT LATER
TODAY...MUCH STRONGER WINDS ARE EXPECTED WEDNESDAY AFTERNOON.
WINDS WILL SHIFT OUT OF THE WEST AND BEGIN TO INCREASE BY LATE IN
THE DAY WEDNESDAY...BECOMING QUITE GUSTY DURING THE OVERNIGHT HOURS
INTO THURSDAY MORNING. SOME GUSTS COULD REACH 30 TO 40 MPH DURING
THIS TIME. CHOPPY CONDITIONS MAY ALSO RESULT ON FLATHEAD LAKE
(WEDNESDAY AFTERNOON) AS A RESULT OF THE INCREASE IN WINDS.

NORTHWEST FLOW WILL CONTINUE OVER THE NORTHERN ROCKIES
FRIDAY...MAINTAINING SHOWER ACTIVITY AREA WIDE. THE MAIN FOCUS OF
PRECIPITATION IS EXPECTED TO BE ACROSS NORTHWEST MONTANA AND NORTH
CENTRAL IDAHO...HOWEVER LIGHT SHOWERS WILL PERSIST ACROSS MUCH OF
THE HIGHER TERRAIN. TEMPERATURES WILL CONTINUE TO WARM ASSOCIATED
WITH HIGH PRESSURE BUILDING ALONG THE WEST COAST. THIS WILL LIKELY
LEAD TO THE WARMEST TEMPERATURES OF THE WEEK BY FRIDAY AFTERNOON.

FORECAST MODELS CONTINUE TO BRING A MOIST WEATHER SYSTEM AND COLD
FRONT THROUGH WESTERN MONTANA AND NORTH CENTRAL IDAHO SATURDAY AND
SATURDAY NIGHT. THERE IS STILL SOME DISCREPANCY IN THE STRENGTH OF
THIS SYSTEM BUT ALL MODELS SHOW WIDESPREAD PRECIPITATION
DEVELOPING DURING THIS TIME FRAME. THEREFORE HAVE CONTINUED THE
TREND OF INCREASING THE CHANCE OF PRECIPITATION. IN
ADDITION...TEMPERATURES ARE EXPECTED TO COOL OFF BACK BELOW NORMAL
FOR THIS TIME OF YEAR...LASTING IN TO SUNDAY.

BEYOND SUNDAY...FORECAST MODELS ARE HAVING A DIFFICULT TIME WITH
THE EUROPEAN MODEL SHOWING A RIDGE OF HIGH PRESSURE VERSUS THE GFS
WHICH IS SHOWING CONTINUED MOIST AND UNSETTLED WEATHER CONDITIONS.
HAVE LEFT TEMPERATURES AND CHANCES OF PRECIPITATION NEAR NORMAL
DURING THIS TIME FRAME DUE TO THE UNCERTAINTY.

&&

.AVIATION...PERSISTENT VALLEY RAIN AND MOUNTAIN SNOW WILL BEGIN
THIS AFTERNOON AND CONTINUE FOR AT LEAST THE NEXT 24 HOURS IF NOT
LONGER. SOME REDUCTION IN VISIBILITIES MAY OCCUR IN AREAS OF
HEAVIER PRECIPITATION...HOWEVER LOWERED CLOUD DECKS WILL LIKELY
OCCUR AT ALL TERMINALS BY THIS AFTERNOON. EXPECT THESE CONDITIONS
TO PERSIST FOR THE NEXT SEVERAL DAYS DUE TO A STRONG UPPER LEVEL
JET AND HEALTHY MOISTURE FEED HELPING TO GENERATE PERSISTENT PRECIPITATION.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...NONE.
ID...NONE.
&&

SHORT TERM...ALLEGRETTO
LONG TERM....PALLISTER
AVIATION...ALLEGRETTO