LAKE TAHOE The National Weather Service says a waterspout has been observed over Lake Tahoe amid severe weather that led to a tornado warning for several northeastern California counties and Carson City in western Nevada.

The Reno weather office says the waterspout made contact with the lake at 4:27 p.m. Wednesday and numerous spotter photos show its well-defined spray ring on the surface.

Meteorologists issued the tornado warning during another brief round of thunderstorms over the northern Sierra Nevada.

A fall-like cold front is expected Thursday, bringing gusty winds and a chance of showers, followed by a stronger front early next week.

Anniversary events

What: Afternoon of Recognition hosted by Amaturo Sonoma Media Group

When: Noon to 5 p.m. Sept. 30

Where: Old Courthouse Square

More details: heroesofoctober.com

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What: Wildfire Anniversary Event: Community Healing Together. All-ages event to with art activities, musical performances, guided hikes, and food.

When: 11 a.m. to 6 p.m. Oct. 6

Where: Shiloh Ranch Regional Park, 5750 Faught Road

More details: https://parks.sonomacounty.ca.gov/Play/Calendar/Wildfire-Anniversary-Event/

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What: Museums of Sonoma County opening reception for “From the Fire: A Community Reflects and Rebuilds,” which runs through Jan. 27

When: 3-6 p.m. Oct. 6

Where: 505 B St., Santa Rosa

Tickets/more details: museumsc.org/events.

*The event is the first in a larger series through the month of October, including an Oct. 25 event from 7-8:30 p.m. at 505 B St. featuring Press Democrat journalists discussing the fire coverage that earned the newspaper a Pulitzer Prize.

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What: Together in Hope, a prayer gathering in solidarity to honor and remember the resiliency and recovery from the North Bay Fires.

When: 2 p.m. to 4 p.m. Oct. 7

Where: Cardinal Newman High School Field, 50 Ursuline Road.

More details: http://santarosacatholic.org/TogetherInHope

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What: County of Sonoma and City of Santa Rosa’s ceremony, featuring chalk for artistic expression on sidewalks around Courthouse Square.

When: 4 – 8 p.m. Oct. 8, with a ceremony with a reading by Sonoma County Poet Laureate, Maya Khosla, and a firefighter memorial bell ringing begins at 6 p.m. Chalk will be available from 10 a.m. to 6 p.m. Oct. 9

Where: Old Courthouse Square

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What: La Luz Center’s appreciation of community resiliency, featuring food, art activities, resources and a listening session in Spanish conducted by Sustainable Sonoma.

When: 6-8 p.m. Oct. 8

Where: La Luz Center, 17560 Greger St. Sonoma

RSVP: amanda@laluzcenter.org

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What: Honoring Loss, Rising in Hope – an evening of singing, prayer and reflection.

When: 7 p.m. Oct. 9

Where: First United Methodist Church, 1151 Montgomery Drive

More details: Contact Pastor Lindsey Bell-Kerr at Lindsey.Bell-Kerr@fumcsantarosa.org

www.heroesofoctober.com

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What: One-year remembrance gathering hosted by Coffey Strong

When: 7-8 p.m. Oct. 9

Where: Near the intersection of Hopper Avenue and Coffey Lane

More details: facebook.com/events/2123622767957025