Modified arctic air had moved over the Panhandle on 1/9 and 1/10 due to offshore flow from colder regions in Canada. Some temperatures had lowered to zero to +10F.  On 1/10 there was a burst of warm moist air that moved over the Panhandle from the south causing numerous winter weather advisories to be issued. Warnings were issued for both the Juneau and Hyder areas due to heavy snow. Impacts: intense snow removal, poor driving conditions, and travel disrupted. The Juneau School District closed schools.
Details: Bands of snow set up over the central panhandle with the core over Juneau over an extended period of time. Outside of Juneau bands caused heavy snow in Gustavus, Hoonah, Tenakee Springs and Angoon. Prior to the snow reaching the central panhandle, snow fell across the south, changing to rain in Ketchikan and Hydaburg on time, but lasting longer over from Coffman Cove to Edna Bay north. The main low center remained over the far SE gulf/SW of Sitka. This caused NELY flow through inside passages including Klawock/Angoon and down Chatham Strait which kept surface temperatures colder longer, even through temperatures aloft were warming. The prolonged NE flow kept Angoon as below freezing until about noon Friday the 11th, at this time the low was moving inland and weakening. The wind shifted for Angoon enough to change to rain, but remained cold enough for snow to continue in the Juneau area through 4pm Friday. However, during the day Friday the flakes became more icy or pellets, which caused the light fluffy snow that had fallen all day Thursday to compact down significantly and limit additional depth - altough observers in Angoon and Hoonah noting still needing to clear a lot of snow off their vehicles multiple times.

Winter Storm in JUNEAU BOROUGH AND NORTHERN ADMIRALTY ISLAND, ALASKA
From 10-JAN-19 12:00:00 to 11-JAN-19 16:00:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Storm total snow for the Juneau area, 1/10 to 1/12 was 11 to 17 inches. Outlying areas may have gotten up to 20 inches in this storm. Impact was intense snow removal. Driving conditions were impassable in some instance. Public schools were closed in Juneau on 1/11.

Heavy Snow in EASTERN BARANOF ISLAND AND SOUTHERN ADMIRALTY ISLAND, ALASKA
From 10-JAN-19 12:00:00 to 11-JAN-19 16:00:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Storm total snow for Angoon was 13 inches in 24 hours ending 1600 on 1/11.

Winter Storm in INNER CHANNELS FROM KUPREANOF ISLAND TO ETOLIN ISLAND, ALASKA
From 10-JAN-19 12:00:00 to 11-JAN-19 16:00:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Petersburg had a storm total 12 inches. Wrangell had a storm total 7 inches then turned to rain.  Impact was intense snow removal and poor travel conditions.

Winter Storm in EASTERN CHICHAGOF ISLAND, ALASKA
From 10-JAN-19 12:00:00 to 11-JAN-19 16:00:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hoonah observed a storm total 13 inches as of 1/11. Tenakee Springs had 6 to 8 inches storm total snowfall. Impact was intense snow removal and poor travel conditions.