


Area Forecast Discussion
Issued by NWS Fairbanks, AK
Issued by NWS Fairbanks, AK
384 FXAK69 PAFG 312019 AFDAFG Northern Alaska Forecast Discussion National Weather Service Fairbanks AK 1219 PM AKDT Sun Aug 31 2025 .SYNOPSIS... Continued wet weather for much of Northern Alaska for the next week as the pattern keeps giving us southwest to west flow and rounds of rain. Rivers are still the main concern moving through the week as the rain does not stop. Fortunately the rain won`t be as heavy as it was last week, but we are not anticipating any major improvements for at least the next week. Otherwise, no significantly impactful weather is expected for Northern Alaska. && .KEY WEATHER MESSAGES... Central and Eastern Interior... - A few showers Monday morning, Tuesday morning and Wednesday morning, especially from the Middle Tanana Valley north, but light accumulations around 0.25" or less. - AK Range gap winds up to 50 mph tonight through Tuesday morning. - Warm and dry in the Upper Tanana Valley and Fortymile Country with highs in the upper 60s and low 70s and minimal rain. - Temperatures in the low to mid 60s elsewhere. West Coast and Western Interior... - Some sun this afternoon in the northern Interior, otherwise, rain to the south moves over the Interior through the day. - Periods of rain continue through Tuesday. - 0.50 to 1.00 inches of rain through Tuesday with up to 2 inches in the southern Seward Peninsula and higher terrain. - Another round of rain possible Wednesday into Thursday. - Temperatures remain cooler than normal. North Slope and Brooks Range.. - Heavy rain in the southern slopes of the Central and Western Brooks Range with up to 2" of rain today through Tuesday. - Snow possible on the north side of Atigun Pass and up to Toolik Lake tonight into tomorrow morning before changing to rain. An inch or less of accumulation possible. - Persistent periods of rain and rain showers for most of the Brooks Range and North Slope through mid week. && .FORECAST ANALYSIS AND DISCUSSION... The pattern remains the same with a 590 decameter high in the Gulf of Alaska and a trough from the Arctic to the NPAC. South to southwest is expected to continue for Northern Alaska through the week with numerous shortwaves and lows expected to provide rain to the West Coast, Western Interior, Brooks Range and North Slope. Isolated to scattered rain showers for the Central Interior and nearly nothing for the Eastern Interior. Southerly flow over the AK Range will provide mostly dry, chinook flow for much of the Central and Eastern Interior but there will be periods of weaker chinook flow where rain is possible. && .FIRE WEATHER... The Upper Tanana Valley and Fortymile remains warm and dry this week with highs into low 70s. Min RHs may be as low as the upper 20s this afternoon, then largely increase into the 30s and 40s as the week progresses. Winds will be breezy through Isabel Pass and Delta Junction tonight through Tuesday morning with gusts as high as 50 mph. Other than a couple of light showers in the Fortymile on Tuesday, no rain is expected until Thursday night at the earliest. && .HYDROLOGY... A variety of flood products exist across the Interior and Brooks Range. Additional rainfall is likely through Tuesday with up to 2 inches possible in the Brooks Range, and generally 0.50 to 1.50 inches across Western Alaska. There will be very slow improvement to the current river statuses this week and we expect them to remain high. Additional waves of rain look likely during the middle and end of the week as there is no end in site. For the most updated forecasts and warnings, visit: weather.gov/afg and weather.gov/aprfc && .EXTENDED FORECAST DAYS 4-7... A low in the Bering Sea will provide more rain to Western Alaska through the week, especially in the Western Interior. From Monday to Friday, there will be an additional 0.50 to 1.50 inches of rain, widespread across Western Alaska, with the greatest amount on the Southern slopes of the Brooks Range. A low traveling North across the Aleutian Islands will begin to impact the West Coast as early as Wednesday morning. The Brooks Range keeps chances for rain each day, especially on the southern slopes. Scattered rain showers with some mixed snow possible all next week on the North Slope. Another low will begin to approach the West Coast of Alaska and the YK Delta will be the first to see rain as early as Friday evening. Coastal Hazard Potential Days 3 and 4...None && .AFG WATCHES/WARNINGS/ADVISORIES... AK...Flood Watch for AKZ813-814-819-828-831. PK...Small Craft Advisory for PKZ801-804-805-810-816-852. Small Craft Advisory for PKZ802-807-809-817-853-856. Small Craft Advisory for PKZ803-855. Small Craft Advisory for PKZ806-811-850-851-854. Small Craft Advisory for PKZ808. Small Craft Advisory for PKZ857. Small Craft Advisory for PKZ859. Small Craft Advisory for PKZ860. Small Craft Advisory for PKZ861. && $$ Bianco Lewis - Extended