Station Name: MERCED R A HAPPY ISLES BRIDGE NR YOSEMITE CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 4,095 feet

Nearest Address:
Happy Isle Loop Rd
Yosemite Valley, CA 95389
Mariposa County

GPS Coordinates: 37.73131496, -119.5590514

Nearby Water Temperatures

Winter Weather Advisory issued February 9 at 3:35AM PST until February 11 at 4:00PM PST by NWS Hanford CA

Effective: Mon February 9, 2026, 3:35 AM
Expires: Mon February 9, 2026, 12:00 PM

* WHAT...Total snow accumulations 12 to 18 inches above 7000 feet. Snow accumulations 4 to 10 inches above 6000 feet. Winds gusting as high as 40 to 50 mph at the highest elevations. * WHERE...A portion of central California. * WHEN...From 10 PM this evening to 4 PM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Tuesday morning and evening commutes. * ADDITIONAL DETAILS...Heaviest snow expected Tuesday into Tuesday evening.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

Dense Fog Advisory issued February 9 at 12:59AM PST until February 9 at 11:00AM PST by NWS Hanford CA

Effective: Mon February 9, 2026, 12:59 AM
Expires: Mon February 9, 2026, 8:30 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Caruthers - San Joaquin - Selma, Delano-Wasco-Shafter, Fresno-Clovis, Hanford - Corcoran - Lemoore, Merced - Madera - Mendota, Planada - Le Grand - Snelling, Southeast San Joaquin Valley, and Visalia - Porterville - Reedley. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Affected highways include, but are not limited to, California Route 41, 43, 46, 58, 99, 140, 152, 168, 180, and 198.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Winter Weather Advisory issued February 8 at 11:54AM PST until February 11 at 4:00PM PST by NWS Sacramento CA

Effective: Sun February 8, 2026, 11:54 AM
Expires: Mon February 9, 2026, 4:00 PM

* WHAT...Total snow accumulations 4 to 10 inches over 5000 feet, 10 to 18 inches above 6000 feet, and locally up to 2 feet over higher peaks. * WHERE...West Slope Northern Sierra Nevada and Western Plumas County/Lassen Park Counties above 5000 feet. * WHEN...From 10 PM Monday 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.

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 Weather Advisory issued February 8 at 11:44AM PST until February 11 at 4:00PM PST by NWS Reno NV

Effective: Sun February 8, 2026, 11:44 AM
Expires: Mon February 9, 2026, 3:15 PM

* WHAT...Snow. Snow accumulations of 4 to 8 inches along and just west of Highway 395 from June Lake to Mammoth Lakes. Above 8000 feet, 6 to 12 inches with up to 18 inches along the Sierra crest. Along Highway 395 near Bridgeport and Lee Vining, up to 2 inches. Winds gusting as high as 35 mph, with gusts reaching 75 mph along the Sierra crest. * WHERE...Mono County. * WHEN...From 10 PM Monday to 4 PM PST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Tuesday morning and evening commutes, as well as the Wednesday morning commute. Gusty winds could bring down tree branches.

Slow down and use caution while traveling. 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.