Marine Weather and Tides
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 8:13AM||Sunset 5:24PM||Saturday January 23, 2021 1:28 AM MST (08:28 UTC)||Moonrise 1:07PM||Moonset 3:51AM||Illumination 75%|
7 Day Forecast for Marine Location Near Turtle Lake, MTHourly EDIT Help
Area Discussion for - Missoula, MT  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KMSO 222152 AFDMSO
Area Forecast Discussion National Weather Service Missoula MT 252 PM MST Fri Jan 22 2021
DISCUSSION. Widespread fog has existed across the Camas Prairie in west central Idaho throughout the day. With limited mixing available, this fog should last through Saturday morning with visibilities lowering to a mile or less at times. Otherwise, mid level clouds on the northern edge of a large upper level low in the Desert Southwest and Great Basin will encompass much of central Idaho through west central and southwest Montana. These clouds should linger through much of the evening hours. Valley fog may develop in the aforementioned areas Saturday morning, but only if we get some clearing overnight.
Clearing skies may also lead to colder temperatures than advertised. Current lows of 10-15 degrees are expected, however places with a fresh couple of inches of snow will combine with clearing skies could drop those values into the single digits Saturday and Sunday mornings.
After a cold start, Saturday will be a pretty nice day with plenty of sun and temperatures hovering around the freezing mark.
Another large upper level low will slide down the West Coast and settle over California, the Great Basin, and the Desert Southwest Sunday through Tuesday. This will leave the Northern Rockies under a disorganized cold and unstable air mass. Weak disturbances from this pattern will bring periods of light snow to the region, but not much more than an inch or two at a time.
The upper closed low pattern in the Desert Southwest will persist through the latter portion of next week. The one difference is that forecast models are indicating a stronger, or more organized, short wave developing across the Pacific Northwest into the Northern Rockies. This more organized system may bring more accumulating widespread snow. However, these subtle features are pretty difficult to pinpoint any definitive solution for timing or intensity of precipitation.
AVIATION. Expect mainly clear skies at KGPI the next 24 hours. There is a slight chance of fog Saturday morning for all terminals, but particularly KGIC. Otherwise KMSO, KSMN, and KBTM will remain under mid level clouds. These clouds will persist through this evening. After 23/0600z, clouds are expected to diminish. VFR conditions are expected at all terminals 23/1600z through 24/0000z.
MSO WATCHES/WARNINGS/ADVISORIES. MT . None. ID . None.
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|Kalispell, Glacier Park International Airport, MT||42 mi||34 min||W 3||10.00 mi||Overcast||19°F||12°F||74%||1018.2 hPa|
Link to 5 minute data for KGPI
Wind History from GPI (wind in knots)
|1 day ago||Calm||Calm||Calm||Calm||W||Calm||Calm||N||Calm||N||Calm||N||N||N||Calm||Calm||Calm||Calm||NW||Calm||Calm||N||Calm|
|2 days ago||E||N||Calm||Calm||Calm||Calm||S||Calm||Calm||NE||N||Calm||Calm||Calm||Calm||Calm||Calm||Calm||SW||Calm||Calm||Calm||W||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
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