Lick Observatory Damaged by Extreme Winds: 114 mph Gusts Cause Closure

Powerful Christmas Day storm tears off multi-ton shutter, crushing Great Hall roof

Apr. 11, 2026 at 6:55pm

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A highly textured, abstract painting in soft shades of blue, green, and gray, featuring sweeping geometric arcs, concentric circles, and precise botanical spirals, conceptually representing the powerful wind forces that damaged the Lick Observatory.The historic Lick Observatory faces a new challenge as extreme winds tear apart its iconic dome, exposing the fragility of even the most enduring scientific landmarks.Santa Cruz Today

The historic Lick Observatory in California faced a devastating blow on Christmas Day as winds reaching 114 mph caused significant damage. A multi-ton shutter section was torn off the dome atop the Great Refractor, crashing onto the roof of the Great Hall and crushing structural beams. While the telescope itself remained intact, its lenses and electrical systems are now vulnerable to the elements. The University of California at Santa Cruz is working to stabilize the building, prevent further damage, and plan restoration efforts.

Why it matters

Lick Observatory has played a pivotal role in scientific advancements over its 137-year history. This incident is a stark reminder of the fragility of historical sites in the face of extreme weather, highlighting the need to better protect such structures and balance preservation with the challenges posed by natural disasters.

The details

According to the University of California at Santa Cruz, the powerful winds tore off a multi-ton shutter section from the dome atop the Great Refractor. The shutter crashed onto the roof of the Great Hall, crushing structural beams. While the telescope itself remained intact, its lenses and electrical systems are now exposed to the elements, particularly rain. The university is focusing on stabilizing the building, preventing further damage, and planning the necessary restoration efforts.

  • The incident occurred on Christmas Day.

The players

Lick Observatory

A historic observatory operated by the University of California at Santa Cruz, known for its contributions to scientific advancements over the past 137 years.

University of California at Santa Cruz

The university that operates the Lick Observatory and is leading the efforts to stabilize the building, prevent further damage, and plan restoration.

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What’s next

The university is working diligently to ensure the observatory's safety and accessibility for the public, inviting contributions to support its mission of research, technology development, education, and outreach.

The takeaway

This incident is a stark reminder of the power of nature and the fragility of human creations. It highlights the importance of preserving historical sites like Lick Observatory and the need to develop better strategies to protect such structures from the challenges posed by extreme weather events.