textproduct: Anchorage
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
LONG TERM FORECAST (Days 4 through 7)
A shortwave trough digging across the Gulf of Alaska Wednesday into Thursday is still on track to bring periods of rain across Prince William Sound and interior locations across Southcentral Alaska. The main focus through the long term period will shift out west as a deepening upper trough enters the western Bering Wednesday into Thursday. Confidence continues to increase on the associated surface low tracking north along the eastern Russia coastline before tracking into the Gulf of Anadyr and eventually inland across northern Alaska through the second half of next week. A potentially gale-force front will bring gusty southwesterly winds across the Aleutians and much of the Bering Wednesday into Thursday, with the front reaching the Southwest coast on Thursday. The long fetch of strong southwesterly, onshore winds could bring the possibility of high surf and minor coastal flooding and erosion along the Kuskokwim Delta coast as the front progresses through the region Thursday into Friday. In addition to gusty winds across Southwest Alaska, widespread moderate to heavy rainfall will accompany this system as it taps into a robust stream of Pacific moisture. By next weekend, weaker, more zonal flow takes over the Bering while the frontal system and widespread rain continues east into Southcentral Alaska and the Gulf.
AVIATION
PANC...The Turnagain wind is expected to slowly diminish through the day. Ceilings will be solidly VFR this afternoon. Ceilings slowly drop overnight (but remain VFR) ahead of the next system.
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