Alert archive / Montana / Wind Advisories in 2011

Wind Advisory 11, NWS Missoula, MT

March 29, 20116 counties in Montana; Clearwater County, Idaho County, Idaho

NWS Missoula, MT issued this wind advisory at Mar 29, 2011, 2:10 PM MDT for 6 counties in Montana; Clearwater County, Idaho County, Idaho. It took effect at Mar 30, 2011, 10:00 AM MDT. It was in force for 31 hr.

The area

The counties it named.

The facts

Issued
Mar 29, 2011, 2:10 PM MDT (20:10 UTC)
In effect from
Mar 30, 2011, 10:00 AM MDT
Expired
Mar 31, 2011, 5:05 PM MDT
In force
31 hr
Issued by
NWS Missoula, MT

Counties Clearwater County, ID, Idaho County, ID, Deer Lodge County, MT, Granite County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Silver Bow County, MT

The radar

The Missoula radar (KMSX), 76 km from the middle of the area, began a volume at 20:09 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Spokane, WA (KOTX), launched 12:00Z, 8.2 hours before the alert went out and 241 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Spokane, WA at 12:00Z on 2011-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 2011-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 129 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1014 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

004 
WWUS75 KMSO 292010
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
210 PM MDT TUE MAR 29 2011


MTZ006-007-301200-
/O.NEW.KMSO.WI.Y.0011.110330T1600Z-110331T0300Z/
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
210 PM MDT TUE MAR 29 2011

...WIND ADVISORY IN EFFECT FROM 10 AM TO 9 PM MDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 10 AM TO 9 PM MDT WEDNESDAY. 

* IMPACTS/TIMING:SOUTHWEST WINDS WILL INCREASE BY MID WEDNESDAY
  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 WEDNESDAY.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

IDZ007-301200-
/O.NEW.KMSO.WI.Y.0011.110330T2100Z-110331T0300Z/
OROFINO/GRANGEVILLE REGION-
110 PM PDT TUE MAR 29 2011

...WIND ADVISORY IN EFFECT FROM 2 PM TO 8 PM PDT WEDNESDAY FOR
THE CAMAS PRAIRIE...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY FOR THE CAMAS PRAIRIE...WHICH IS IN EFFECT FROM 2 PM TO
8 PM PDT WEDNESDAY. 

* IMPACTS/TIMING:AN INCREASED SURFACE PRESSURE GRADIENT AND STRONG
  MID LEVEL WINDS WILL CREATE STRONG SOUTH WINDS THROUGH THE CAMAS
  PRAIRIE WEDNESDAY AFTERNOON INTO THE 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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

MTZ005-301200-
/O.NEW.KMSO.WI.Y.0011.110330T1800Z-110331T0300Z/
MISSOULA/BITTERROOT VALLEYS-
210 PM MDT TUE MAR 29 2011

...WIND ADVISORY IN EFFECT FROM NOON TO 9 PM MDT WEDNESDAY FOR
THE BITTERROOT VALLEY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY FOR THE BITTERROOT VALLEY...WHICH IS IN EFFECT FROM NOON
TO 9 PM MDT WEDNESDAY. 

* 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 WEDNESDAY
  AFTERNOON AND EVENING. THE FOOTHILLS ALONG THE BITTERROOT
  MOUNTAINS COULD SEE GUSTS TO 50 MPH IN THE EVENING. 

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

MTZ003-301200-
/O.NEW.KMSO.LW.Y.0002.110330T1200Z-110331T0300Z/
FLATHEAD/MISSION VALLEYS-
210 PM MDT TUE MAR 29 2011

...LAKE WIND ADVISORY IN EFFECT FROM 6 AM TO 9 PM MDT WEDNESDAY
FOR FLATHEAD LAKE...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A LAKE WIND
ADVISORY FOR FLATHEAD LAKE...WHICH IS IN EFFECT FROM 6 AM TO 9 PM
MDT WEDNESDAY. 

* IMPACTS/TIMING:INCREASED SOUTHWEST WINDS WILL RESULT IN CHOP ON
  THE LAKE THROUGH THE DAY WEDNESDAY. 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: WAVE HEIGHT FORECAST AVAILABLE IN WRKGPI.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

NOTE...THE EXPERIMENTAL WAVE HEIGHT FORECASTS ARE REPRESENTATIVE
OF THE MID LAKE WATERS AND DOWNWIND SHORES. WAVE HEIGHTS MAY BE
SIGNIFICANTLY LESS ON UPWIND SHORES.

&&

$$
7 follow-up statements
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

$$
992 
WWUS75 KMSO 302317
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
517 PM MDT WED MAR 30 2011

MTZ005-310030-
/O.CAN.KMSO.WI.Y.0011.000000T0000Z-110331T0300Z/
MISSOULA/BITTERROOT VALLEYS-
517 PM MDT WED MAR 30 2011

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WIND
ADVISORY. 

WEST WINDS 15 TO 25 MPH CAN STILL BE EXPECTED THROUGH THE EVENING
HOURS...BUT ADVISORY CRITERIA WINDS ARE NO LONGER EXPECTED.

$$

MTZ003-310030-
/O.CAN.KMSO.LW.Y.0003.000000T0000Z-110331T0300Z/
FLATHEAD/MISSION VALLEYS-
517 PM MDT WED MAR 30 2011

...LAKE WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE LAKE
WIND ADVISORY. 

SOUTHWEST WINDS 15 TO 25 MPH CAN STILL BE EXPECTED THROUGH THE
EVENING HOURS...BUT ADVISORY CRITERIA WINDS ARE NO LONGER
EXPECTED.

$$

IDZ007-310400-
/O.EXT.KMSO.WI.Y.0011.000000T0000Z-110331T1800Z/
OROFINO/GRANGEVILLE REGION-
417 PM PDT WED MAR 30 2011

...WIND ADVISORY NOW IN EFFECT UNTIL 11 AM PDT THURSDAY FOR
GRANGEVILLE AND VICINITY...

THE WIND ADVISORY FOR GRANGEVILLE AND VICINITY IS NOW IN EFFECT
UNTIL 11 AM PDT THURSDAY. 

* IMPACTS/TIMING: STRONG SOUTH WINDS WILL DECREASE SLIGHTLY THIS
  EVENING...BUT ARE EXPECTED TO INCREASE ONCE AGAIN EARLY THURSDAY
  MORNING. STRONG SOUTH WINDS WILL CONTINUE THROUGH THURSDAY
  MORNING HOURS BEFORE DECREASING AGAIN THURSDAY AFTERNOON. HIGH
  PROFILE VEHICLES SHOULD BE PREPARED FOR STRONG SOUTH WINDS.

* WINDS: SOUTH WINDS 25 TO 35 MPH WITH GUSTS UP TO 45 MPH...
  DECREASING TO 20 TO 25 MPH WITH GUSTS UP TO 35 MPH LATER THIS
  EVENING. SOUTH WINDS WILL INCREASE 25 TO 35 MPH SUSTAINED WITH
  GUSTS UP TO 45 MPH EARLY THURSDAY MORNING. WINDS WILL FINALLY
  BEGIN TO DECREASE AGAIN THURSDAY AFTERNOON.

$$

MTZ006-007-310300-
/O.CON.KMSO.WI.Y.0011.000000T0000Z-110331T0300Z/
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
517 PM 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 CONTINUE ACROSS THE BUTTE
  AND BLACKFOOT REGIONS AND THE SAPPHIRE MOUNTAINS THROUGH EARLY
  EVENING. WINDS WILL DIMINISH BY NIGHTFALL...BUT REMAIN FAIRLY
  GUSTY OVERNIGHT. HIGH PROFILE VEHICLES SHOULD BE PREPARED FOR
  STRONG CROSSWINDS.

* WINDS:SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 45 MPH THROUGH
  EARLY EVENING...BEFORE DECREASING BY NIGHTFALL.

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

$$
342 
WWUS75 KMSO 310236
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
836 PM MDT WED MAR 30 2011

MTZ006-007-310345-
/O.CAN.KMSO.WI.Y.0011.000000T0000Z-110331T0300Z/
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
836 PM MDT WED MAR 30 2011

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WIND
ADVISORY. 

WESTERLY WINDS HAVE DECREASED THIS EVENING. LOCAL GUSTS TO 30 MPH
ARE STILL POSSIBLE DURING THE OVERNIGHT PERIOD HOWEVER.

$$

IDZ007-311100-
/O.CON.KMSO.WI.Y.0011.000000T0000Z-110331T1800Z/
OROFINO/GRANGEVILLE REGION-
736 PM PDT WED MAR 30 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THURSDAY FOR
GRANGEVILLE AND VICINITY...

A WIND ADVISORY FOR GRANGEVILLE AND VICINITY REMAINS IN EFFECT
UNTIL 11 AM PDT THURSDAY. 

* IMPACTS/TIMING: STRONG SOUTH WINDS WILL DECREASE SLIGHTLY THIS 
  EVENING...BUT ARE EXPECTED TO INCREASE ONCE AGAIN EARLY 
  THURSDAY MORNING. STRONG SOUTH WINDS WILL CONTINUE THROUGH 
  THURSDAY MORNING HOURS BEFORE DECREASING AGAIN THURSDAY 
  AFTERNOON. HIGH PROFILE VEHICLES SHOULD BE PREPARED FOR STRONG 
  SOUTH WINDS. 

* WINDS: SOUTH WINDS 25 TO 35 MPH WITH GUSTS UP TO 45 MPH...
  DECREASING TO 20 TO 25 MPH WITH GUSTS UP TO 35 MPH THIS
  EVENING. SOUTH WINDS WILL INCREASE 25 TO 35 MPH SUSTAINED WITH
  GUSTS UP TO 45 MPH EARLY THURSDAY MORNING. WINDS WILL FINALLY
  BEGIN TO DECREASE AGAIN THURSDAY AFTERNOON.

$$
295 
WWUS75 KMSO 311034
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
434 AM MDT THU MAR 31 2011

IDZ007-311800-
/O.CON.KMSO.WI.Y.0011.000000T0000Z-110331T1800Z/
OROFINO/GRANGEVILLE REGION-
334 AM PDT THU MAR 31 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING
FOR GRANGEVILLE AND VICINITY...

A WIND ADVISORY FOR GRANGEVILLE AND VICINITY REMAINS IN EFFECT
UNTIL 11 AM PDT THIS MORNING. 

* IMPACTS/TIMING: STRONG SOUTH WINDS WILL INCREASE ONCE AGAIN
  EARLY THIS MORNING. THESE WINDS WILL CONTINUE THROUGH THE MORNING
  HOURS BEFORE DECREASING AGAIN DURING THE AFTERNOON. HIGH PROFILE
  VEHICLES SHOULD BE PREPARED FOR STRONG SOUTH WINDS.

* WINDS: SOUTH WINDS WILL INCREASE 25 TO 35 MPH SUSTAINED WITH
  GUSTS UP TO 45 MPH EARLY THIS MORNING. WINDS WILL BEGIN TO
  DECREASE AGAIN DURING THE AFTERNOON.

$$
000 
WWUS75 KMSO 311543
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
943 AM MDT THU MAR 31 2011

MTZ007-010300-
/O.NEW.KMSO.HW.W.0002.110331T1700Z-110401T0400Z/
BUTTE/BLACKFOOT REGION-
943 AM MDT THU MAR 31 2011

...HIGH WIND WARNING IN EFFECT UNTIL 10 PM MDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 10 PM MDT THIS EVENING. 

* IMPACTS/TIMING: WEST WINDS WILL BECOME INCREASINGLY STRONG EARLY
  THIS AFTERNOON AND REMAIN ELEVATED THROUGH THIS EVENING. STRONG
  WIND GUSTS WILL IMPACT TRAVEL...ESPECIALLY ALONG NORTH-SOUTH
  TRAVEL CORRIDORS...AND COULD CAUSE PROPERTY DAMAGE. HIGH PROFILE
  VEHICLES AND SEMI TRUCKS SHOULD USE EXTREME CAUTION WHILE
  TRAVELING THROUGH THIS AREA TODAY.

* WINDS: SUSTAINED WEST WINDS OF 40 MPH WITH GUSTS UP TO 60 MPH.
  HIGHER GUSTS ARE POSSIBLE LATE THIS AFTERNOON.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 50 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

&&

$$

MTZ003-010300-
/O.NEW.KMSO.LW.Y.0004.110331T2000Z-110401T0300Z/
FLATHEAD/MISSION VALLEYS-
943 AM MDT THU MAR 31 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: WEST WINDS WILL INCREASE THIS AFTERNOON AND
  REMAIN ELEVATED THROUGH EARLY EVENING. INCREASED CHOP AND SWELLS
  SHOULD BE ANTICIPATED OVER FLATHEAD LAKE...ESPECIALLY ALONG THE
  EASTERN SHORES.

* WINDS: SUSTAINED WEST WINDS OF 20 TO 25 MPH WITH GUSTS TO 35
  MPH. HIGHER GUSTS ARE POSSIBLE LATE THIS AFTERNOON. 

* WAVE HEIGHTS: 1 TO 3 FEET...LOCALLY UP TO 4 FEET ALONG EASTERN
  HALF OF FLATHEAD LAKE.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

NOTE...THE EXPERIMENTAL WAVE HEIGHT FORECASTS ARE REPRESENTATIVE
OF THE MID LAKE WATERS AND DOWNWIND SHORES. WAVE HEIGHTS MAY BE
SIGNIFICANTLY LESS ON UPWIND SHORES.

&&

$$

IDZ007-010300-
/O.EXT.KMSO.WI.Y.0011.000000T0000Z-110401T0400Z/
OROFINO/GRANGEVILLE REGION-
843 AM PDT THU MAR 31 2011

...WIND ADVISORY NOW IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR
GRANGEVILLE AND VICINITY...

THE WIND ADVISORY FOR GRANGEVILLE AND VICINITY IS NOW IN EFFECT
UNTIL 9 PM PDT THIS EVENING. 

* IMPACTS/TIMING: SOUTH WINDS WILL INCREASE THROUGH THE AFTERNOON
  AND REMAIN ELEVATED THROUGH EARLY EVENING. HIGH PROFILE VEHICLES
  AND SEMI TRUCKS SHOULD USE CAUTION WHILE TRAVELING THROUGH
  THIS AREA TODAY.

* WINDS: SOUTH WINDS OF 30 TO 35 MPH WITH GUSTS UP TO 50 MPH.
  HIGHER GUSTS ARE POSSIBLE LATE THIS AFTERNOON. 
 

$$
958 
WWUS75 KMSO 312305
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
505 PM MDT THU MAR 31 2011

MTZ007-010015-
/O.CAN.KMSO.HW.W.0002.000000T0000Z-110401T0400Z/
BUTTE/BLACKFOOT REGION-
505 PM MDT THU MAR 31 2011

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE HIGH
WIND WARNING. 

WEST WINDS 15 TO 30 MPH CAN STILL BE EXPECTED THROUGH THE EVENING
HOURS...THEN DECREASE AFTER SUNSET. OCCASIONAL GUSTS TO 40 MPH ARE
ALSO POSSIBLE OVER MACDONALD PASS THROUGH THIS EVENING.


$$

IDZ007-010015-
/O.CAN.KMSO.WI.Y.0011.000000T0000Z-110401T0400Z/
OROFINO/GRANGEVILLE REGION-
405 PM PDT THU MAR 31 2011

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WIND
ADVISORY. 

SOUTH WINDS 20 TO 25 MPH SUSTAINED WITH GUSTS UP TO 35 MPH CAN BE
EXPECTED THROUGH THE EVENING HOURS...THEN DIMINISH AFTER NIGHTFALL.


$$

MTZ003-010015-
/O.CAN.KMSO.LW.Y.0004.000000T0000Z-110401T0300Z/
FLATHEAD/MISSION VALLEYS-
505 PM MDT THU MAR 31 2011

...LAKE WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE LAKE
WIND ADVISORY. 

LOCAL SOUTH WINDS 15 TO 25 MPH CAN STILL BE EXPECTED OVER THE LAKE
THROUGH THIS EVENING...THEN DIMINISH AFTER NIGHTFALL.


$$

The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 29, 2:10 PM MDTLake Wind AdvisoryMSOFlathead, Lake, Sanders20 hr

Nearby

Wind Advisories in Montana, 2011Wind Advisories in Idaho, 2011Every wind advisory in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.