Marine Weather and Tides
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.
|Sunrise 7:15AM||Sunset 8:07PM||Thursday March 30, 2017 6:26 PM MDT (00:26 UTC)||Moonrise 8:06AM||Moonset 10:32PM||Illumination 13%|
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7 Day Forecast for Marine Location Near Somers, MTHourly EDIT Help
Area Discussion for - Missoula, MT  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus65 kmso 302042|
area forecast discussion
national weather service missoula mt
242 pm mdt Thu mar 30 2017
Discussion A low pressure system continues to dig south this
afternoon through nevada with moisture circulating around this
feature into central idaho. A developing mid level circulation is
expected to interact with this moisture as it moves through north
central idaho this afternoon/evening and into southwest montana
overnight. Precipitation associated with this disturbance is
expected to bring accumulating snow to elevations roughly above
6000 feet. Roads may become slushy and slick at times through
early Friday morning, particularly for high elevation passes such
as lost trail, homestake, and macdonald. Further north across
west central and northwest montana, most locations will remain dry
with a few showers, generally over the higher terrain.
Drier air will filter into the region tomorrow morning as high
pressure builds into western montana and central idaho. This
should bring any lingering precipitation to an end by late
morning. Fairly pleasant conditions will dominate come afternoon
as clearing skies allow for some sunshine.
A ridge of high pressure builds over the northern rockies during
the early morning on Saturday, giving fog an opportunity to form.
Fog should stay patchy in nature and be short-lived, as westerly
flow develops during the late morning and Sun helps mix valley
Models have changed significantly over the past 24 hours with the
depiction of weather for late weekend into early next work week.
Instead of a deep, digging trough of low pressure, models bring a|
shortwave through on Saturday, then keep moist northwest flow over
the area through much of Monday. Relatively cool temperatures
with showers and snow levels down to 4000 feet characterize this
By Tuesday, the flow dries out, and a ridge of high pressure
builds over the area. Thursday looks very mild, and could be one
of the warmest days yet this year, as southwest flow develops
ahead of a cold front that moves through Friday. Stay tuned as
this period of the forecast has been very changeable, and thus
confidence is low at this point.
Aviation As a mid level circulation moves through central idaho
this afternoon and evening, more widespread precipitation is
expected to develop, generally south of a line from kgic to k6s5
to khln. Ksmn and kbtm will likely see periods of persistent
precipitation, leading to low ceilings and visibility at times
through early Friday morning. Further north near kmso, a few
showers will be possible, but impacts to visibility and ceiling
should be short-lived. Widespread obscurations of the higher
terrain will prevail through central idaho and western montana
into Friday morning due to a persistent mid level cloud deck. A
north to northeasterly wind is anticipated to develop later this
afternoon, and may persist through much of the night. Most
locations will feel this breeze up to 10 kts; however, ksmn and
kbtm may have gusts up to 20 kts at times.
Mt... Winter weather advisory from midnight tonight to 9 am mdt Friday
above 6000 feet for the butte/blackfoot region.
Id... Winter weather advisory until 9 am mdt Friday above 6500 feet
for the lemhi county.
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Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Kalispell, Glacier Park International Airport, MT||17 mi||31 min||Var 4||10.00 mi||Fair||51°F||30°F||46%||1013.4 hPa|
Wind History from GPI (wind in knots)
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|2 days ago||SE||SE||S||SW||S||S||S||S||N||S||SW||SW||SW||S||Calm||S||S||S||SW||SE||SE||SE|
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|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of PacificNorthwest EDIT
Wind Forecast for Missoula, MT (20,4,5,8)(on/off)  Help
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