Marine Weather and Tides
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.
|Sunrise 4:27AM||Sunset 11:06PM||Thursday May 13, 2021 5:31 AM AKDT (13:31 UTC)||Moonrise 2:47AM||Moonset 12:00AM||Illumination 4%|
7 Day Forecast for Marine Location Near Hughes, AKHourly EDIT Help
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FXAK69 PAFG 131019 AFDAFG
Northern Alaska Forecast Discussion National Weather Service Fairbanks AK 219 AM AKDT Thu May 13 2021
SYNOPSIS. Normal spring weather continues as we enter into the time of year when weather is largely dictated by diurnal patterns, including threats for showers and isolated afternoon thunderstorms. Temps remain at climatological normals albeit a bit cooler up along the North Slope. This pattern continues into the weekend.
Upper Levels and Analysis . There is an upper low over the northeast part of the Mainland with a weak ridge centered over the Nulato Hills. Farther south, very typical for this time of year is a low in the Gulf of Alaska. Weak ridging extends south into the Alaska Range. Showers and isolated thunderstorms this afternoon formed along the edge of the ridge with the upper trough, aided some by diurnal forcing along higher terrain before drifting downstream. At the surface, a strong 1040 mb high persists near Banks Island with general low pressure over the Bering and Gulf of Alaska.
Central and Eastern Interior . Pretty normal spring weather the next few days with temps generally in the low 60s and mostly light winds, although a little breezier over the higher terrain. Afternoon diurnal showers and isolated thunderstorms look to be mainly relegated to the Fortymile Uplands and Alaska Range, although there is a slight chance up to the Tanana Valley and foothills of the White Mountains.
West Coast and Western Interior . Light pressure gradients gradually pick up beginning tonight and continuing through Saturday with increasing north to northeast winds. Winds will become rather breezy along the West Coast and Saint Lawrence by Sat with gusts approaching gale force. Elsewhere, the pattern of afternoon showers and isolated thunderstorms over the Interior continues over the next two days as a weak ridge remains in place. There is a chance for some isolated showers, however, as far west as the Yukon Delta given the weak easterly flow aloft today, with isolated thunderstorm chances as far west as the Nulato Hills. Otherwise, much of the shower activity will be focused over the Yukon Valley the next few days.
North Slope and Brooks Range . A combination of fog, stratus, and blowing snow will continue over the Arctic Coast over the 12-24 hours (mainly the eastern Arctic) before high pressure settles in and temps gradually warm along with decreasing easterly winds. This will likely result in more stratus and fog. Expect some isolated snow showers/flurries at times into the weekend as an upper low retrogrades west over the Brooks Range and North Slope.
Extended Forecast Days 4-7 . Beginning the extended period forecast on Sunday, there will be a large upper low level low center over the northern half of the Mainland with a weak ridge over the southern Interior. This will allow for a redeveloping thermal trough north of the AK Range and increased threats for thunderstorms and accumulating rainfall over much of the Interior. Models diverge on the placement of the upper level trough, but the overall pattern is consistent in the global models. This pattern will likely remain near climatological norms for temps as we head into late spring.
Coastal Hazard Potential Days 3 and 4 . None.
FIRE WEATHER. Afternoon showers and isolated thunderstorms will favor the Western Interior and the Tanana Valley to the AK Range/Fortymile Uplands today. Activity looks less impressive than yesterday with lower coverage and a more suppressed thermal trough. Showers and isolated thunderstorms will continue to be minor threats heading into the weekend with avg temps and winds on the lighter side. No major fire weather concerns are anticipated.
HYDROLOGY. A flood watch remains in place through this morning along the Yukon River for Circle (Thu).
The ice jam above Circle remains in place and is backing water up into low lying areas well upstream. When the ice jam breaks ice conditions are such that it may just pass right by Circle with just some high water as the ice at Circle has mostly cleared. Further downstream on the Yukon River there is still plenty of ice remaining in place, and if the water rises it could pick up some of the stranded ice along the banks and take it downstream. Ice continues to rot in place, but ice in the Rampart Canyon is still solidly in place, so breakup may slow as it moves into that area later this week and early next week.
The latest Riverwatch Aircraft recon shows breakup on the Koyukuk River is continuing nicely with occasional ice floes to Huslia. From there to Hughes, there were large ice floes moving slower through the curves in the river. From Hughes to Allakaket the river was open with ice on bars and edges of the channel. River levels were low with numerous sand bars visible. Most of the ice is candling as it rots in place and breaking up once it starts moving downstream, so only a limited amount of large chunks of ice are available to get jammed up.
Conditions can change rapidly so go to www.weather.gov/fairbanks or www.weather.gov/aprfc for the latest information.
AFG WATCHES/WARNINGS/ADVISORIES. Flood Watch for AKZ220.
Brisk Wind Advisory for PKZ240.
Gale Warning for PKZ245.
Small Craft Advisory for PKZ210.
AHSENMACHER MAY 21
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