Marine Weather and Tides
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen
|Sunrise 8:17AM||Sunset 4:45PM||Friday December 13, 2019 1:48 PM MST (20:48 UTC)||Moonrise 6:18PM||Moonset 9:44AM||Illumination 95%|
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 131016 AFDMSO
Area Forecast Discussion National Weather Service Missoula MT 316 AM MST Fri Dec 13 2019
DISCUSSION. Widespread show will continue through the early morning hours this morning, particularly in the Seeley/Swan Region, where the higher snow amounts for all valleys have been received. Also, Lookout, Lolo, and Marias Passes will continue to experience periods of low visibility and hazardous driving. For the rest of western Montana and north-central Idaho, snow is more scattered in nature with variable conditions. This afternoon, snow will become showery, throughout the Northern Rockies, with mountain snow continuing and occasionally making it down to area valleys.
Northwesterly flow is still forecast to develop and influence north-central Idaho and western Montana during this weekend. This flow pattern leads to cooler temperatures and lower snow levels, so precipitation type will primarily be snow during Saturday and Sunday. Model guidance show shortwave disturbances on both Saturday and Sunday, which will provide the lift for showers to develop. Snow amounts appear to be variable from one location to the next, due to indications that showers may organize into bands on Saturday. These bands can further enhance the variability of snow amounts. If traveling through or around north-central Idaho and western Montana during this weekend, please plan on snow over mountain passes, and periods of snow and reduced visibility at lower elevations. Travel impacts may linger into Monday under continued northwesterly flow.
Valley fog may start to develop early next week, after the recent moisture and a transition into high pressure. The strength of next week’s high pressure is somewhat uncertain, but extended model guidance tend to agree that an active weather pattern will return by the end of next week.
AVIATION. Light snow will continue for KGPI, periodically reducing visibility and ceilings through 13/1700Z this morning. For KMSO and KSMN, snow will be more scattered in nature, creating lesser impacts. Patchy fog will also be possible, especially for KSMN around sunrise, but could also impact KMSO at a lesser extent. Mountain obscurations will continue throughout the day today, as mountain showers will continue through sunset.
MSO WATCHES/WARNINGS/ADVISORIES. MT . Winter Weather Advisory until 11 AM MST this morning Bitterroot/Sapphire Mountains.
Winter Weather Advisory until 11 AM MST this morning Lower Clark Fork Region.
Winter Weather Advisory until 11 AM MST this morning Flathead/Mission Valleys.
Winter Weather Advisory until 11 AM MST this morning West Glacier Region.
Winter Weather Advisory until 11 AM MST this morning Kootenai/Cabinet Region.
Winter Weather Advisory until 11 AM MST this morning Potomac/Seeley Lake Region.
ID . Winter Weather Advisory until 10 AM PST this morning Northern Clearwater Mountains . Southern Clearwater Mountains.
Winter Weather Advisory until 11 AM MST this morning Western Lemhi County.
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||17 mi||53 min||SSE 6||10.00 mi||Overcast||37°F||30°F||76%||1016.3 hPa|
Link to 5 minute data for KGPI
Wind History from GPI (wind in knots)
|1 day ago||S||S||Calm||Calm||N||Calm||Calm||N||W||N||Calm||SW||SW||SW||SW||S||SW||S||S||SE||SE||SW|
|2 days ago||Calm||N||Calm||Calm||Calm||W||Calm||N||W||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||S||Calm||Calm|
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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 (15,3,4,5)(on/off)  Help
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