Alert archive / Montana / Wind Advisories in 2012

Wind Advisory 15, NWS Missoula, MT

April 3, 20126 counties in Montana; Lemhi County, Idaho

NWS Missoula, MT issued this wind advisory at Apr 3, 2012, 12:15 PM MDT for 6 counties in Montana; Lemhi County, Idaho. It took effect at Apr 4, 2012, 9:00 AM MDT. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
Apr 3, 2012, 12:15 PM MDT (18:15 UTC)
In effect from
Apr 4, 2012, 9:00 AM MDT
Expired
Apr 4, 2012, 9:56 AM MDT
In force
56 min
Issued by
NWS Missoula, MT

Counties Lemhi 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), 104 km from the middle of the area, began a volume at 18:17 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

Great_falls, MT (KTFX), launched 12:00Z, 6.3 hours before the alert went out and 258 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, Great_falls, MT at 12:00Z on 2012-04-03Temperature 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, Great_falls, MT at 12:00Z on 2012-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 square meters per square second.1939Sfc1 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
2365 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
23 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.

973 
WWUS75 KMSO 031815
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1215 PM MDT TUE APR 3 2012


MTZ007-041100-
/O.NEW.KMSO.WI.Y.0015.120404T1600Z-120404T2300Z/
BUTTE/BLACKFOOT REGION-
1215 PM MDT TUE APR 3 2012

...WIND ADVISORY IN EFFECT FROM 10 AM TO 5 PM MDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 10 AM TO 5 PM MDT WEDNESDAY. 

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE SOUTHWEST WINDS
  TO INCREASE WEDNESDAY MORNING. PEAK WINDS WILL OCCUR IN THE
  AFTERNOON WITH THE COLD FRONT. CROSSWINDS ON I-90 FROM GARRISON
  JUNCTION TO BUTTE WILL CAUSE DIFFICULT DRIVING CONDITIONS...
  ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS OUTDOORS MAY BE
  BLOWN AROUND IF NOT ANCHORED.

* WINDS: SOUTH 25 TO 35 MPH GUSTING TO 45 MPH. BECOMING WESTERLY
  BY MID-AFTERNOON.


* 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.

&&

$$

MTZ005-041100-
/O.NEW.KMSO.WI.Y.0015.120404T1500Z-120404T2100Z/
MISSOULA/BITTERROOT VALLEYS-
1215 PM MDT TUE APR 3 2012

...WIND ADVISORY IN EFFECT FROM 9 AM TO 3 PM MDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 9 AM TO 3 PM MDT WEDNESDAY. 

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE INCREASING
  SOUTHWEST WINDS WEDNESDAY MORNING. PEAK WINDS ARE EXPECTED
  BETWEEN 11 AM AND 1 PM WITH THE COLD FRONT. CROSSWINDS ON
  HIGHWAY 93 FROM MISSOULA TO DARBY WILL CAUSE DIFFICULT DRIVING
  CONDITIONS...ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS
  OUTDOORS MAY BE BLOWN AROUND IF NOT ANCHORED.

* WINDS: 20 TO 30 MPH GUSTING TO 45 MPH WITH THE COLD FRONT.

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

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.

&&

$$

IDZ010-041100-
/O.NEW.KMSO.WI.Y.0015.120404T1600Z-120404T2300Z/
EASTERN LEMHI COUNTY-
1215 PM MDT TUE APR 3 2012

...WIND ADVISORY IN EFFECT FROM 10 AM TO 5 PM MDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 10 AM TO 5 PM MDT WEDNESDAY. 


* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE SOUTHWEST WINDS
  TO INCREASE WEDNESDAY MORNING. PEAK WINDS WILL OCCUR IN THE
  AFTERNOON WITH THE COLD FRONT. CROSS WINDS ON HIGHWAY 28 FROM
  SALMON TO LONE PINE WILL CAUSE DIFFICULT DRIVING CONDITIONS...
  ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS OUTDOORS MAY BE
  BLOWN AROUND IF NOT ANCHORED.

* WINDS: SOUTHERLY 25 TO 35 MPH GUSTING TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...GILMORE SUMMIT...BANNOCK
  PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL
  PASS TO GIBBONSVILLE... LEMHI PASS...SALMON

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.

&&

$$
4 follow-up statements
575 
WWUS75 KMSO 041043
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
443 AM MDT WED APR 4 2012

MTZ003-041845-
/O.NEW.KMSO.LW.Y.0002.120404T1800Z-120405T0300Z/
FLATHEAD/MISSION VALLEYS-
443 AM MDT WED APR 4 2012

...LAKE WIND ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A LAKE WIND
ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING. 

* IMPACTS/TIMING: GUSTY SOUTHWEST WINDS PRODUCING CHOP ON FLATHEAD
  LAKE THIS AFTERNOON THROUGH EARLY EVENING.

* WINDS: SOUTHWEST TO WEST 15 TO 20 MPH WITH GUSTS 30 TO 35 MPH.

* WAVE HEIGHTS: WAVE HEIGHT FORECAST 1 TO 3 FEET

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY...
   MISSION VALLEY...POLSON

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.

&&

$$

MTZ007-041845-
/O.CON.KMSO.WI.Y.0015.120404T1600Z-120404T2300Z/
BUTTE/BLACKFOOT REGION-
443 AM MDT WED APR 4 2012

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
5 PM MDT THIS AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 5 PM
MDT THIS AFTERNOON. 

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE SOUTHWEST WINDS 
  TO INCREASE WEDNESDAY MORNING. PEAK WINDS WILL OCCUR IN THE 
  AFTERNOON WITH THE COLD FRONT. CROSSWINDS ON I-90 FROM 
  GARRISON JUNCTION TO BUTTE WILL CAUSE DIFFICULT DRIVING 
  CONDITIONS... ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS 
  OUTDOORS MAY BE BLOWN AROUND IF NOT ANCHORED. 

* WINDS: SOUTH 25 TO 35 MPH GUSTING TO 45 MPH. BECOMING WESTERLY 
  BY MID-AFTERNOON. 

* 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.

&&

$$

MTZ005-041845-
/O.CON.KMSO.WI.Y.0015.120404T1500Z-120404T2100Z/
MISSOULA/BITTERROOT VALLEYS-
443 AM MDT WED APR 4 2012

...WIND ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 3 PM
MDT THIS AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 3 PM
MDT THIS AFTERNOON. 

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE INCREASING
  SOUTHWEST WINDS WEDNESDAY MORNING. PEAK WINDS ARE EXPECTED
  BETWEEN 11 AM AND 3 PM WITH A COLD FRONTAL PASSAGE. CROSSWINDS ON
  HIGHWAY 93 FROM MISSOULA TO DARBY WILL CAUSE DIFFICULT DRIVING
  CONDITIONS...ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS
  OUTDOORS MAY BE BLOWN AROUND IF NOT ANCHORED.

* WINDS: 20 TO 30 MPH GUSTING TO 45 MPH WITH THE COLD FRONT.

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

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.

&&

$$

IDZ010-041845-
/O.CON.KMSO.WI.Y.0015.120404T1600Z-120404T2300Z/
EASTERN LEMHI COUNTY-
443 AM MDT WED APR 4 2012

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
5 PM MDT THIS AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 5 PM
MDT THIS AFTERNOON. 

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE SOUTHWEST WINDS
  TO INCREASE WEDNESDAY MORNING. PEAK WINDS WILL OCCUR IN THE
  AFTERNOON WITH A COLD FRONTAL PASSAGE. CROSS WINDS ON HIGHWAY
  28 FROM SALMON TO LONE PINE WILL CAUSE DIFFICULT DRIVING
  CONDITIONS... ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS
  OUTDOORS MAY BE BLOWN AROUND IF NOT ANCHORED.

* WINDS: SOUTHERLY 20 TO 30 MPH GUSTING TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...BANNOCK PASS...HIGHWAY 28 TENDOY 
  TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...
  LEMHI PASS...SALMON

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.

&&

$$
395 
WWUS75 KMSO 041048
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
448 AM MDT WED APR 4 2012

MTZ007-042300-
/O.CON.KMSO.WI.Y.0015.120404T1600Z-120404T2300Z/
BUTTE/BLACKFOOT REGION-
448 AM MDT WED APR 4 2012

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
5 PM MDT THIS AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 5 PM
MDT THIS AFTERNOON. 

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE SOUTHWEST WINDS 
  TO INCREASE WEDNESDAY MORNING. PEAK WINDS WILL OCCUR IN THE 
  AFTERNOON WITH THE COLD FRONT. CROSSWINDS ON I-90 FROM 
  GARRISON JUNCTION TO BUTTE WILL CAUSE DIFFICULT DRIVING 
  CONDITIONS... ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS 
  OUTDOORS MAY BE BLOWN AROUND IF NOT ANCHORED. 

* WINDS: SOUTH 25 TO 35 MPH GUSTING TO 45 MPH. BECOMING WESTERLY 
  BY MID-AFTERNOON. 

* 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.

&&

$$

MTZ005-042100-
/O.CON.KMSO.WI.Y.0015.120404T1500Z-120404T2100Z/
MISSOULA/BITTERROOT VALLEYS-
448 AM MDT WED APR 4 2012

...WIND ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 3 PM
MDT THIS AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 3 PM
MDT THIS AFTERNOON. 

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE INCREASING 
  SOUTHWEST WINDS WEDNESDAY MORNING. PEAK WINDS ARE EXPECTED 
  BETWEEN 11 AM AND 3 PM WITH A COLD FRONTAL PASSAGE. CROSSWINDS 
  ON HIGHWAY 93 FROM MISSOULA TO DARBY WILL CAUSE DIFFICULT 
  DRIVING CONDITIONS...ESPECIALLY FOR HIGH PROFILE VEHICLES. 
  OBJECTS OUTDOORS MAY BE BLOWN AROUND IF NOT ANCHORED. 

* WINDS: 20 TO 30 MPH GUSTING TO 45 MPH WITH THE COLD FRONT.

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

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.

&&

$$

IDZ010-042300-
/O.CON.KMSO.WI.Y.0015.120404T1600Z-120404T2300Z/
EASTERN LEMHI COUNTY-
448 AM MDT WED APR 4 2012

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
5 PM MDT THIS AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 5 PM
MDT THIS AFTERNOON. 

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE SOUTHWEST WINDS 
  TO INCREASE WEDNESDAY MORNING. PEAK WINDS WILL OCCUR IN THE 
  AFTERNOON WITH A COLD FRONTAL PASSAGE. CROSS WINDS ON HIGHWAY 
  28 FROM SALMON TO LONE PINE WILL CAUSE DIFFICULT DRIVING 
  CONDITIONS... ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS 
  OUTDOORS MAY BE BLOWN AROUND IF NOT ANCHORED. 

* WINDS: SOUTHERLY 20 TO 30 MPH GUSTING TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...BANNOCK PASS...HIGHWAY 28 TENDOY 
  TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...
  LEMHI PASS...SALMON

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.

&&

$$

MTZ003-042300-
/O.CON.KMSO.LW.Y.0002.120404T1800Z-120405T0300Z/
FLATHEAD/MISSION VALLEYS-
448 AM MDT WED APR 4 2012

...LAKE WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 PM
MDT THIS EVENING...

A LAKE WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 PM
MDT THIS EVENING. 

* IMPACTS/TIMING: GUSTY SOUTHWEST WINDS PRODUCING CHOP ON 
  FLATHEAD LAKE THIS AFTERNOON THROUGH EARLY EVENING. 

* WINDS: SOUTHWEST TO WEST 15 TO 20 MPH WITH GUSTS 30 TO 35 MPH.

* WAVE HEIGHTS: WAVE HEIGHT FORECAST 1 TO 3 FEET

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY...
   MISSION VALLEY...POLSON

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.

&&

$$
617 
WWUS75 KMSO 041522
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
922 AM MDT WED APR 4 2012

MTZ007-042330-
/O.NEW.KMSO.WI.Y.0016.120404T1900Z-120405T0200Z/
/O.EXT.KMSO.WI.Y.0015.120404T1600Z-120404T1700Z/
BUTTE/BLACKFOOT REGION-
922 AM MDT WED APR 4 2012

...WIND ADVISORY NOW IN EFFECT UNTIL 11 AM MDT THIS MORNING...
...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM MDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
MDT THIS EVENING. THE WIND ADVISORY IS NOW IN EFFECT UNTIL 11 AM
MDT THIS MORNING. 

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE SOUTHWEST WINDS
  TO INCREASE LATE THIS MORNING. PEAK WINDS WILL OCCUR THIS
  AFTERNOON WITH THE COLD FRONT. CROSSWINDS ON I-90 FROM
  GARRISON JUNCTION TO BUTTE WILL CAUSE DIFFICULT DRIVING
  CONDITIONS... ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS
  OUTDOORS MAY BE BLOWN AROUND IF NOT SECURED.

* WINDS: SOUTHWEST 25 TO 35 MPH GUSTING TO 45 MPH. BECOMING
  WESTERLY BY LATE AFTERNOON. WINDS WILL BE DECREASING AGAIN BY
  EARLY EVENING.

* 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.

&&

$$

MTZ005-042300-
/O.NEW.KMSO.WI.Y.0016.120404T1800Z-120404T2300Z/
/O.EXT.KMSO.WI.Y.0015.000000T0000Z-120404T1700Z/
MISSOULA/BITTERROOT VALLEYS-
922 AM MDT WED APR 4 2012

...WIND ADVISORY NOW IN EFFECT UNTIL 11 AM MDT THIS MORNING...
...WIND ADVISORY IN EFFECT UNTIL 5 PM MDT THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 5 PM MDT THIS AFTERNOON. THE
WIND ADVISORY IS NOW IN EFFECT UNTIL 11 AM MDT THIS MORNING. 

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE INCREASING
  SOUTHWEST WINDS LATE THIS MORNING. PEAK WINDS ARE EXPECTED
  BETWEEN 1 AND 3 PM WITH A COLD FRONTAL PASSAGE. CROSSWINDS ON
  HIGHWAY 93 FROM MISSOULA TO DARBY WILL CAUSE DIFFICULT DRIVING
  CONDITIONS...ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS
  OUTDOORS MAY BE BLOWN AROUND IF NOT SECURED.

* WINDS: 20 TO 30 MPH GUSTING TO 45 MPH WITH THE COLD FRONT.

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

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.

&&

$$

IDZ010-042330-
/O.NEW.KMSO.WI.Y.0016.120404T1800Z-120405T0300Z/
/O.EXT.KMSO.WI.Y.0015.120404T1600Z-120404T1700Z/
EASTERN LEMHI COUNTY-
922 AM MDT WED APR 4 2012

...WIND ADVISORY NOW IN EFFECT UNTIL 11 AM MDT THIS MORNING...
...WIND ADVISORY IN EFFECT UNTIL 9 PM MDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 9 PM MDT THIS EVENING. THE
WIND ADVISORY IS NOW IN EFFECT UNTIL 11 AM MDT THIS MORNING. 

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE SOUTHWEST WINDS
  TO INCREASE LATE THIS MORNING. PEAK WINDS WILL OCCUR THIS
  AFTERNOON WITH A COLD FRONTAL PASSAGE. CROSSWINDS ON HIGHWAY 28
  FROM SALMON TO LONE PINE WILL CAUSE DIFFICULT DRIVING
  CONDITIONS...ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS
  OUTDOORS MAY BE BLOWN AROUND IF NOT SECURED.

* WINDS: SOUTHERLY 20 TO 30 MPH GUSTING TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...BANNOCK PASS...HIGHWAY 28 TENDOY 
  TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...
  LEMHI PASS...SALMON

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.

&&

$$

MTZ003-042330-
/O.EXT.KMSO.LW.Y.0002.120404T1900Z-120405T0200Z/
FLATHEAD/MISSION VALLEYS-
922 AM MDT WED APR 4 2012

...LAKE WIND ADVISORY NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM MDT THIS EVENING...

THE LAKE WIND ADVISORY IS NOW IN EFFECT FROM 1 PM THIS AFTERNOON
TO 8 PM MDT THIS EVENING. 

* IMPACTS/TIMING: GUSTY SOUTHWEST WINDS PRODUCING CHOP ON 
  FLATHEAD LAKE THIS AFTERNOON THROUGH EARLY EVENING. 

* WINDS: SOUTHWEST TO WEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* WAVE HEIGHTS: WAVE HEIGHT FORECAST 1 TO 3 FEET

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...POLSON

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.

&&

$$
263 
WWUS75 KMSO 041556
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
956 AM MDT WED APR 4 2012

MTZ005-050000-
/O.CAN.KMSO.WI.Y.0015.000000T0000Z-120404T1700Z/
/O.EXT.KMSO.WI.Y.0016.120404T1900Z-120405T0000Z/
MISSOULA/BITTERROOT VALLEYS-
956 AM MDT WED APR 4 2012

...WIND ADVISORY NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM
MDT THIS EVENING...

THE WIND ADVISORY IS NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 6
PM MDT THIS EVENING.

* IMPACTS/TIMING: A STRONG COLD FRONT WILL BE CAUSE INCREASING
  SOUTHWEST WINDS LATE THIS MORNING. PEAK WINDS ARE EXPECTED
  BETWEEN 1 AND 3 PM WITH A COLD FRONTAL PASSAGE. CROSSWINDS ON
  HIGHWAY 93 FROM LOLO TO DARBY WILL CAUSE DIFFICULT DRIVING
  CONDITIONS...ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS
  OUTDOORS MAY BE BLOWN AROUND IF NOT SECURED.

* WINDS: 20 TO 30 MPH GUSTING TO 45 MPH WITH THE COLD FRONT.

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

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.

&&

$$

MTZ007-050000-
/O.CAN.KMSO.WI.Y.0015.120404T1600Z-120404T1700Z/
/O.CON.KMSO.WI.Y.0016.120404T1900Z-120405T0200Z/
BUTTE/BLACKFOOT REGION-
956 AM MDT WED APR 4 2012

...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM MDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8
PM MDT THIS EVENING.

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE SOUTHWEST WINDS
  TO INCREASE LATE THIS MORNING. PEAK WINDS WILL OCCUR THIS
  AFTERNOON WITH THE COLD FRONT. CROSSWINDS ON I-90 FROM GARRISON
  JUNCTION TO BUTTE WILL CAUSE DIFFICULT DRIVING CONDITIONS...
  ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS OUTDOORS MAY BE
  BLOWN AROUND IF NOT SECURED.

* WINDS: SOUTHWEST 25 TO 35 MPH GUSTING TO 45 MPH. BECOMING 
  WESTERLY BY LATE AFTERNOON. WINDS WILL BE DECREASING AGAIN BY 
  EARLY EVENING. 

* 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.

&&

$$

IDZ010-050000-
/O.CAN.KMSO.WI.Y.0015.120404T1600Z-120404T1700Z/
/O.EXT.KMSO.WI.Y.0016.120404T1900Z-120405T0300Z/
EASTERN LEMHI COUNTY-
956 AM MDT WED APR 4 2012

...WIND ADVISORY NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM
MDT THIS EVENING...

THE WIND ADVISORY IS NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 9
PM MDT THIS EVENING.

* IMPACTS/TIMING: A STRONG COLD FRONT WILL CAUSE SOUTHWEST WINDS
  TO INCREASE LATE THIS MORNING. PEAK WINDS WILL OCCUR THIS
  AFTERNOON WITH A COLD FRONTAL PASSAGE. CROSSWINDS ON HIGHWAY 28
  FROM SALMON TO LONE PINE WILL CAUSE DIFFICULT DRIVING
  CONDITIONS...ESPECIALLY FOR HIGH PROFILE VEHICLES. OBJECTS
  OUTDOORS MAY BE BLOWN AROUND IF NOT SECURED.

* WINDS: SOUTHERLY 20 TO 30 MPH GUSTING TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...BANNOCK PASS...HIGHWAY 28 TENDOY 
  TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...
  LEMHI PASS...SALMON

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.

&&

$$

MTZ003-050000-
/O.CON.KMSO.LW.Y.0002.120404T1900Z-120405T0200Z/
FLATHEAD/MISSION VALLEYS-
956 AM MDT WED APR 4 2012

...LAKE WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON
TO 8 PM MDT THIS EVENING...

A LAKE WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON
TO 8 PM MDT THIS EVENING. 

* IMPACTS/TIMING: GUSTY SOUTHWEST WINDS PRODUCING CHOP ON 
  FLATHEAD LAKE THIS AFTERNOON THROUGH EARLY EVENING. 

* WINDS: SOUTHWEST TO WEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* WAVE HEIGHTS: WAVE HEIGHT FORECAST 1 TO 3 FEET

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY...
   MISSION VALLEY...POLSON

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 4:25 AM MDTWinter Weather AdvisoryMSOMineral, Missoula, Sanders39 hr

Nearby

Wind Advisories in Montana, 2012Wind Advisories in Idaho, 2012Every wind advisory in 2012

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.