Sealaska Builds Launch Pads for Data Gathering Balloons in Remote Alaska
Friday, December 7, 2018

All around the world at precisely the same time, weather balloons are released and rise to the top of the earth’s atmosphere. Sensors attached to the 5-feet wide balloons take snapshots of the weather every few seconds – temperature, humidity, pressure, and wind speed – as they rise up to 100,000 feet and drift as far as 125 miles depending on wind speeds.

National Weather Service balloon launch building sits on top of the platform Sealaska built in St. Paul, Alaska.

Sealaska Construction Solutions (SCS) is helping the National Weather Service (NWS) automate this process in remote places in Alaska to make more efficient use of its limited workforce. Specializing in remote construction, SCS works with engineers and local subcontractors to design and build the platforms housing specialized equipment from which the balloons launch.

Weather balloon launch platforms were under construction in Yakutat, Alaska, in 2017.

Last year, SCS built four sites in Alaska with a $2.4 million contract, including in Yakutat and Annette Island. Recently, SCS was awarded a new contract to build seven more sites for $4.4 million. Anchorage, Bethel, Cold Bay, King Salmon, Kotzebue, McGrath, and Nome will all be prepared for NWS to efficiently gather weather-forecasting data with their new balloon launch systems.

Check out this short video of a completed automated weather balloon launch site!

 

Sealaska Construction Solutions is part of Sealaska’s government services group, providing building solution leadership in an open culture between clients, subcontractors and the end-user. 


Latest News


Sealaska Endorsements

Pinned - Posted 8/14/2026

At Sealaska, we support leaders who recognize the importance of Indigenous self-determination, stewardship of our homelands and opportunities that strengthen Native communities for generations to come. After careful consideration, Sealaska is proud to endorse Jonathan Kreiss-Tomkins "JKT" for Governor of Alaska, Mary Peltola for the United States Senate and Bill Hill for Alaska's At-Large Congressional District.



More Than a House: An Intern’s Connections and Reflections on Finding Community at Yéil Hít

Posted 8/24/2026
By Patricia Elie-Wolkoff, Communications & Corporate Secretary Intern Before traveling to Haines, I knew I would be covering the dedication of Yéil Hít, the Raven House. What I didn’t expect was how personally the experience would connect me to community. Growing up in Anchorage, I spent much of my time connected to my mother’s Alutiiq family from Kodiak. Although I always knew my father’s Haida…

Mendenhall Flood Protections Hold During Annual Glacial Outburst

Posted 8/15/2026

JUNEAU, Alaska — When the annual glacial outburst flood from Suicide Basin sent water down the Mendenhall River this summer, Juneau residents watched closely after two consecutive years of record flooding damaged homes and reshaped stretches of the riverbank.



Sealaska Board of Directors July Meeting Recap

Posted 8/6/2026

The Sealaska Board of Directors met on July 31, 2026, and conducted key governance actions while receiving updates on shareholder engagement, shareholder development, business performance, natural resources and regional priorities.



2026 Sealaska Election Results

Posted 6/29/2026

At Sealaska’s 53rd Annual Meeting in Aangóon (Angoon), the Inspector of Elections certified the results of the 2026 election.