Station Name: TUOLUMNE R A GRAND CYN OF TUOLUMNE AB HETCH HETCHY
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 3,842 feet

Nearest Address:
White Wolf Road
Groveland, CA 95321
Tuolumne County

GPS Coordinates: 37.9165884, -119.6598938

Nearby Water Temperatures

Heat Advisory issued July 15 at 3:31AM PDT until July 16 at 11:00PM PDT by NWS Hanford CA

Effective: Wed July 15, 2026, 3:31 AM
Expires: Wed July 15, 2026, 12:00 PM

* WHAT...High temperatures ranging from 102 to 107 expected. Overnight lows will only drop into the mid to upper 70s. * WHERE...Across the Central and Southern San Joaquin Valley and adjacent lower foothills * WHEN...Until 11 PM PDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Heat Advisory issued July 15 at 11:47AM PDT until July 16 at 11:00PM PDT by NWS Hanford CA

Effective: Wed July 15, 2026, 11:47 AM
Expires: Wed July 15, 2026, 8:00 PM

* WHAT...High temperatures ranging from 102 to 107 expected. Overnight lows will only drop into the mid to upper 70s. * WHERE...Across the Central and Southern San Joaquin Valley and adjacent lower foothills * WHEN...Until 11 PM PDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.