Marine Weather and Tide Forecast for Savoonga, AK

KEY WEATHER MESSAGES
Central and Eastern Interior...
- Scattered rain showers will diminish tonight and Wednesday through the Interior. Isolated pockets of fog possible in valleys Wednesday morning as skies begin to scatter out late Tuesday night and Wednesday morning.

- Breezy northeasterly winds increase Wednesday. Gusts up to 35 mph possible along Interior summits with gusts up to 25 mph possible in valleys unless sheltered from the northeast.

- Southerly gap flow will increase in the Alaska Range Passes beginning late Tuesday night and continuing into Thursday.
Gusts up to 45 mph expected for the Eastern Alaska Range and gusts up to 40 mph possible for the Western Alaska Range.

West Coast and Western Interior...
- Weaker, generally southerly, winds along the West Coast shift will begin to shift to the east late tonight and will increase on Wednesday. Offshore flow expected for most coastal communities. Gusts up to 30 mph are possible, but generally speeds will be 25 mph or less.

- Another wave of rain moves north across the West Coast Wednesday and then moves diminishes on Thursday as offshore winds strengthen.

North Slope and Brooks Range...
- Southerly winds will strengthen tonight and continue on Wednesday with winds up to 20 mph along the North Slope and with gusts up to 35 mph in the Brooks Range. Scattered snow showers are possible along Western North Slope and Western Brooks Range.
Winds will shift to the east on Thursday and will gust to 35 mph along the Eastern Arctic Slope.



FORECAST ANALYSIS AND DISCUSSION
Deep longwave trough with axis over Siberia and the Kamchatka Peninsula will continue to deepen and shift to the east and will be centered over the Eastern Bering Sea and Western Alaska by the end of the week. A powerful shortwave rotating along the base of the longwave trough currently over the Central Aleutians will fuel a strong low pressure system on the surface over the Central Aleutians and will rapidly move east Wednesday and Thursday.
Ahead of this powerful shortwave a weak ridge aloft will push into southwest AK tonight and over the Interior on Wednesday. On the surface weak troughs will dominate over the Interior bringing scattered rain showers in the valleys and snow showers at higher elevations. As a trough rotates through the Western Interior and West Coast changes of rain will increase Wednesday and then decrease on Thursday as winds shift offshore. Southerly winds will keep precip at a minimum over the eastern North Slope tonight and Wednesday.

.EXTENDED FORECAST DAYS 4-7...
An active pattern is expected to continue for the end of the week and into early next week. All models are in fairly good agreement in showing broad troughing from Siberia to the Western Interior through the weekend. As next week begins, this broad troughing will shift to the east. Models are continuing to show the potential for a stronger system moving into the southern Bering Sea sometime Sunday afternoon/evening and continue to push east across the Gulf coast.
The limiting factors to this system will be a weak ridge out ahead of this system that some models are starting to display. This and the positioning of the broad troughing will be the main drivers for the track of this next system at the end of the weekend. This will continued to be monitored over the next several days as the storm draws nearer.

Coastal Hazard Potential Days 3 and 4...
Gale Force easterly winds along the offshore waters of the North Slope on Friday and Saturday will produce 8 to 10 foot seas in ice free waters offshore between Demarcation Point and Utqiagvik.

AFG WATCHES/WARNINGS/ADVISORIES
AK...None.
PK...Small Craft Advisory for PKZ801-850.
Small Craft Advisory for PKZ802.
Small Craft Advisory for PKZ803-805.
Small Craft Advisory for PKZ804-852.