Marine Weather and Tides
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
|Sunrise 5:36AM||Sunset 9:34PM||Thursday June 4, 2020 9:20 PM MDT (03:20 UTC)||Moonrise 7:29PM||Moonset 4:04AM||Illumination 99%|
7 Day Forecast for Marine Location Near Lakeside, MTHourly EDIT Help
Area Discussion for - Missoula, MT  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KMSO 042050 AFDMSO
Area Forecast Discussion National Weather Service Missoula MT 250 PM MDT Thu Jun 4 2020
Increased cloudiness and passing nuisance rain showers will continue across the Northern Rockies through this evening. Rain amounts will be quite insignificant, with the possible exception of the Glacier Park Region. Otherwise conditions will be mild and occasionally breezy through sunset.
Southwest flow aloft will develop over the Northern Rockies on Friday, pumping warm air northward across the region. Friday daytime temperatures will be more than 10 degrees warmer than today for many locations. Late in the afternoon, showers and thunderstorms will begin emerging near the triple point of Oregon, Washington, Idaho borders. These showers and thunderstorms are projected to increase in coverage and intensity along a surface cold front that will march eastward throughout the evening and overnight. Some high-resolution models suggest that thunderstorms will be passing through locales such as Kalispell in the wee hours of Saturday morning. Despite the nocturnal nature of these storms, plenty of lightning, brief heavy rainfall, erratic wind gusts, and small hail are probable. Many details are likely to shift and change over the next 36 hours, so stay aware.
Showers and thunderstorms along and ahead of a cold front will continue to march east across the Northern Rockies on Saturday. There is a reasonable amount of spread among models in the timing of the cold front across southwest Montana during Saturday. Late morning through mid-afternoon appears to be the most plausible time of the cold front passing across the Continental Divide. Outside of the usual thunderstorm attributes, it is unclear how strong wind gusts and how large hail may become. Stay tuned.
Temperatures will cool appreciably across the Northern Rockies Saturday through Monday, with widespread rain and high elevation snow developing. First, snow could become a hazard for those traveling or recreating above 6000 feet Sunday night through Monday morning. Even beyond snow accumulation, the lack of traction on typically passable backcountry roadways, low visibility, and risk of hypothermia in heavy, wet snow will be risks during this time. Take time to consider how to endure winter weather conditions such as these in your travel plans. Also, near-record cold daytime temperatures may be present on Monday.
Cold air will remain in-place across the Northern Rockies through Tuesday. Tuesday morning temperatures will cool to near freezing for many valley locations (if skies clear accordingly).
Most long-range models suggest that relatively warm high pressure will move over the Northern Rockies Tuesday and Wednesday. Some models also suggest that a jet streak overhead may increase cloudiness, particularly on Wednesday. Temperatures are expected to warm near the seasonal average during this time.
AVIATION. Breezy conditions will continue across the Northern Rockies through 05/0300Z with gusts up to 25 knots being possible across area terminals. Cloud cover will gradually decrease this evening and tonight as a ridge of high pressure builds across the area. A round of showers and thunderstorms are possible late Friday afternoon and evening across northwest Montana and north central Idaho as a cold front moves into eastern Washington.
MSO WATCHES/WARNINGS/ADVISORIES. MT . None. ID . None.
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Kalispell, Glacier Park International Airport, MT||18 mi||26 min||Var 5||10.00 mi||Fair||58°F||42°F||56%||1013.2 hPa|
Link to 5 minute data for KGPI
Wind History from GPI (wind in knots)
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|2 days ago||SE||S||S||SW||S||S||W||Calm||Calm||Calm||Calm||SW||S||SE||SE||S||S||S|
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GEOS Local Image of PacificNorthwest EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Missoula, MT (23,6,7,8)(on/off)  Help
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