Station Name: TUOLUMNE R AB EARLY INTAKE NR MATHER CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 2,493 feet

Nearest Address:
Preston Falls Trail
Groveland, CA 95321
Tuolumne County

GPS Coordinates: 37.87936848, -119.947126

Nearby Water Temperatures

Winter Weather Advisory issued February 9 at 12:31PM PST until February 11 at 4:00PM PST by NWS Sacramento CA

Effective: Mon February 9, 2026, 12:31 PM
Expires: Tue February 10, 2026, 4:15 PM

* WHAT...Total snow accumulations 3 to 6 inches over 5500 feet, 8 to 12 inches above 6000 feet, and locally up to 18 inches over higher peaks. * WHERE...West Slope Northern Sierra Nevada and Western Plumas County/Lassen Park. * WHEN...From 10 PM this evening to 4 PM PST Wednesday. * IMPACTS...Mountain travel could be very difficult Tuesday into Wednesday. Plan for travel delays and chain controls. * ADDITIONAL DETAILS...Heaviest snow expected Tuesday afternoon into Wednesday morning. Snow levels will be rising to around 6000 to 7000 feet by late Tuesday morning and afternoon, dropping to around 5500 feet Wednesday.

Check the latest road conditions from Caltrans online at quickmap.dot.ca.gov or dial 5 1 1. Be prepared for slippery roads. Slow down and use caution while driving. The hazardous conditions could make travel difficult with delays and chain controls.

Winter Storm Warning issued February 9 at 8:08PM PST until February 11 at 4:00PM PST by NWS Hanford CA

Effective: Mon February 9, 2026, 8:08 PM
Expires: Tue February 10, 2026, 5:00 AM

* WHAT...Heavy snow expected. Total snow accumulations 12 to 18 inches above 7000 feet and up to 24 inches at the highest elevations. Winds gusting as high as 40 to to 50 mph. * WHERE...Kaiser to Rodgers Ridge, Upper San Joaquin River, and Yosemite NP outside of the valley. * WHEN...Until 4 PM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Tuesday morning and evening commutes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Heaviest snow expected Tuesday evening into early Wednesday morning.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.