The Alaska Volcano Observatory (AVO) raised Mount Kupreanof to Aviation Color Code Yellow and Volcano Alert Level Advisory at 17:01 UTC on May 12, 2026, after seismic activity and sulfur dioxide emissions increased over recent months at the Alaska Peninsula volcano.
Seismic activity and sulfur dioxide emissions have increased at Kupreanof volcano in Alaska over recent months, likely due to magmatic intrusion beneath the volcano. Kupreanof is a heavily glaciated stratovolcano on the Alaska Peninsula with no known historical eruptions. Current data do not indicate an eruption is imminent.
A 958 hPa hurricane-force extratropical low is approaching the Aleutian Islands and Bering Sea on April 26, 2026. NOAA’s Ocean Prediction Center issued a Hurricane Force Wind Warning, with winds of 93-120 km/h (58–75 mph) and seas of 7-10 m (23-33 feet) in the southern semicircle.
Juneau International Airport in Alaska recorded 511 cm (201.2 inches) of snowfall for the 2025/26 season through March 23, setting a new seasonal record for the airport. The total exceeds the previous airport record of 502.7 cm (197.9 inches) from 2006/07, while daily snowfall records were also set on March 22 and 23, and the March monthly total reached a record 175.8 cm (69.2 inches).
A strong and shallow earthquake registered by the USGS as M6.4 hit near the Rat Islands, Aleutian Islands, Alaska at 17:54 UTC on March 4, 2026. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting the same magnitude and depth. According to the National Tsunami Warning Center (NTWC), there is no tsunami danger from this event.
A strong and shallow earthquake registered by the USGS as M6.1 struck near Nikolski, Alaska, at 05:11 UTC on February 23, 2026. The agency is reporting a depth of 14 km (8.7 miles). EMSC is reporting M6.1 at a depth of 25 km (15 miles).
Extreme Cold Warnings and Blizzard Warnings remain in effect across northern and western Alaska on February 11, 2026, with the National Weather Service forecasting wind chills as low as −57°C (−70°F) along the Arctic Coast and Brooks Range and wind gusts up to 105 km/h (65 mph) on St. Lawrence Island. Air temperatures near −46°C (−50°F) combined with increasing winds are expected to intensify frostbite risk across the North Slope, while snowfall of 7–15 cm (3–6 inches) and visibility reductions to 400 m (0.25 miles) or less are forecast in parts of western Alaska through early February 12.
A notable increase in seismic activity was detected at Pavlof volcano on the Alaska Peninsula on January 14, 2026, prompting the Alaska Volcano Observatory (AVO) to raise the alert level to Advisory and the Aviation Color Code to Yellow. No surface activity or eruptive changes were observed, and seismicity has since declined to background levels.
Multiple avalanches have been reported across parts of Alaska, prompting road closures and evacuations near Juneau as precipitation and heightened avalanche risk continue across the region through January 13, 2026.
After its snowiest December in more than eight decades, Juneau, Alaska, now faces flooding threats as warm Pacific air brings heavy rain over deep snow. The National Weather Service (NWS) warns that clogged drains and rapid snowmelt could trigger flooding in streets and small streams through the weekend.
