The Bulletin of the Mount Washington Observatory

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The Science behind Nor’easters

Unique beasts known for punishing weather, nor’easters serve an important purpose for our globe despite their infamous reputation.

New Normals Reveal Valley and Summit Temperature Increases, Among Other Climate Trends

As our interns began to compare the 1991-2020 U.S. Climate Normals versus the older 1981-2010 set, three broader stories began to emerge.

Avalanche Deaths a Tragic Part of Mount Washington History

For those interested in exploring Mount Washington in winter and spring, avalanche knowledge can be a pre-requisite for skiing the steeps or climbing challenging slopes.

Partnerships Key to Continuous Mesonet Operation

In addition to providing historical weather data for the Appalachian Mountain Club’s (AMC) research, our interactive mesonet system delivers access to live temperature, humidity, wind, and other conditions at AMC huts

Visibility from Summit Increasing Over Time

Our weather observers recently completed an analysis of long-term visibility records, studying data collected continuously since 1943 at the summit's unique vantage point.

Weather 101: Tropical Storms

The threat of hurricanes becomes more prominent in late summer and early fall, and you may find yourself thinking about how and why these storms are forming.

Fall/Winter 2022/23 Edition

The Bulletin of the Mount Washington Observatory

The Science behind Nor’easters

New Normals Reveal Valley and Summit Temperature Increases, Among Other Climate Trends

Avalanche Deaths a Tragic Part of Mount Washington History

Partnerships Key to Continuous Mesonet Operation

Visibility from Summit Increasing Over Time

Weather 101: Tropical Storms

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