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Mount Washington Observatory is a non-profit institution working to advance understanding of the natural systems that create the Earth's weather and climate.
Mount Washington, NH
Joined October 2010
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Before rain and fog descended upon the summit last night, lenticular clouds formed on the leeward side of the Northern Presidentials, pictured here looking northwest. Hurricane-force gusts, rain showers, and fog will continue through the day Sunday over the higher summits.
For full forecast details, visit mountwashington.org/forecast
#mwobs #mountwashington #lenticularcloud #newhampshire #nhwx #mountainwx
Meet Kaitlin Farrell, who overcame a fear of tornadoes to become a storm chaser, and now a Summit Intern at our extreme weather station atop Mount Washington! Read Kaitlin's blog post here:
mountwashington.org/my-fear-…
#mountwashington #weather #stormchaser #internship
Upper-level clouds will continue to spread in over the region today from the south ahead of a coastal low tracking towards the southern New England coast this weekend. For full forecast details, visit mountwashington.org/forecast
Our weekly shift change this morning from the upbound crew's point of view featured displays of the vibrant fall foliage nearing its peak on the higher elevations of the White Mountains 🍂
The top of Mt. Washington was in the clouds overnight as temps plunged into the upper 20s, leaving a fresh coating of rime ice down to about 5800ft. Here's the view at sunrise (23 Sept 2026) looking towards the northern summits of the Presidential Range from our instrument tower.
Looking down at the southern summits of the Presidential Range and neighboring peaks of the White Mountains at sunset today (22 Sept 2026).
#NHwx #NH #mountains #sunset
Two of our fall interns, Kaitlin and Ellie, were out on the observation deck (pic 1) enjoying the sunrise with a bit of undercast (pic 2) this morning (20 Sept 2026).
#NHwx #mountains #sunrise #undercast
Sunset from the summit of Mt. Washington today (19 Sept 2026). For what to expect on Sunday, please check out our Higher Summits Forecast at mountwashington.org/weather/…
#NHwx #NH #mountains #sunset
Applications are now being accepted for the MWOBS/USFS (MWAC) Joint Internship. We are looking for individuals with interests and skills in meteorology, snow science, and winter recreation to join our teams from January through April. Visit mountwashington.org/internsh… for more info.
Earlier this shift on Sunday, the summit cleared from the fog in time to reveal a partial undercast to our west as the sun was setting and lighting up the clouds.
The summit will be dry today and fog-free as high pressure crests overhead and then shifts offshore.
For more details, please visit mountwashington.org/forecast.
September 10th was a notably windy day on the summit. The peak wind gust for the day was 104 mph, which reset the daily wind record (originally 98 mph in 1972). The daily average wind speed of 70.1 mph was our highest since January 12th, and is currently the 4th highest of 2026.
The first clear night since Wednesday allowed the first unobstructed views of the Honor Summit lights from the summit, seen here backlighting the tower, the parapet, and a vertical shot where the parallel light beams appear to cross. (1/2)
We expect good visibility tonight on the 25th anniversary of 9/11. View the Honor Summit Lights on our webcams below…
From Wildcat Mountain (likely best view)
youtube.com/watch?v=JS679d7W…
From the Cog Railway
youtube.com/watch?v=xYbH_qKY…
From the Observatory Tower
youtube.com/watch?v=JuJVUhj9…
