Weather News

One SLO County spot got almost 6 inches of rain. Here’s how much fell in your area

A storm swept across San Luis Obispo County and the Central Coast on Dec. 18, 2023.
A storm swept across San Luis Obispo County and the Central Coast on Dec. 18, 2023. dmiddlecamp@thetribunenews.com

San Luis Obispo County’s first significant rainstorm of the fall has brought plenty of precipitation — and more is on its way.

Between Monday and Tuesday morning, areas of the county received anywhere from 0.12 inches to nearly 6 inches of rain as a storm system made its way through the region.

Rocky Butte in the mountains northeast of Cambria received 5.95 inches of rain as of 10 a.m. Tuesday, according to the San Luis Obispo County Public Works Department.

San Luis Obispo received between 1.14 inches and 1.38 inches of rain, while Santa Margarita saw 1.04 inches of rain fall from the storm.

Morro Bay and Los Osos both saw around 0.6 inches of rainfall, and Cambria received 0.78 inches, according to the Public Works Department.

North County areas of the county received between 0.32 inches and 0.87 inches of rain. And South County areas similarly saw between about 0.29 inches and 0.59 inches of rain from the storm.

Flood watch issued for SLO County

Throughout Tuesday, expect periods of light rain, according to the National Weather Service’s latest forecast.

“This rainfall will help prime things for the more potent storm,” the service wrote in its forecast Tuesday. “All eyes are still focused on storm No. 2 which is stronger and colder than today’s storm.”

This second storm is expected to bring an atmospheric river to southern areas of the storm, which could impact the Central Coast.

It’s possible areas could see rainfall rates of 0.3 to 0.6 inches per hour, and up to 1 inch per hour in isolated areas. There’s also the potential for thunderstorms, according to the Weather Service.

The Weather Service issued a flood watch for San Luis Obispo County beginning 10 p.m. Tuesday and in effect until 4 a.m. Friday.

It’s likely the Central Coast region could see 2 to 4 inches of rain along the coast and in valley areas, while mountains could see 4 to 8 inches between tonight and Friday, according to the Weather Service.

The rainstorm won’t bring significantly colder temperatures, but expect daytime temperatures in the high 50s and low 60s throughout the rest of the week for the county, the Weather Service predicted. Nighttime lows will remain in the low 50s to low 40s for the county, according to the Weather Service.

This story was originally published December 19, 2023 at 10:30 AM.

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Mackenzie Shuman
The Tribune
Mackenzie Shuman primarily writes about SLO County education and the environment for The Tribune. She’s originally from Monument, Colorado, and graduated from Arizona State University’s Walter Cronkite School of Journalism and Mass Communication in May 2020. When not writing, Mackenzie spends time outside hiking and rock climbing.
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