Station Name: SAN JUAN RIVER AT FOUR CORNERS, CO
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 4,626 feet

Nearest Address:
Indian Rte 239
Ute Mountain, CO 81321
Montezuma County

GPS Coordinates: 37.00113889, -109.0295833

Nearby Water Temperatures

Air Quality Alert issued July 2 at 9:10AM MDT by NWS Grand Junction CO

Effective: Thu July 2, 2026, 9:10 AM
Expires: Fri July 3, 2026, 9:00 AM

The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Wildfire Smoke. WHERE...Moffat, Routt, Jackson, Grand, Rio Blanco, Garfield, Eagle, Summit, Gilpin, Clear Creek, Mesa, Pitkin, Lake, Park, Delta, Gunnison, Chaffee, Montrose, Ouray, San Miguel, Dolores, and northern parts of Montezuma and Saguache Counties. Locations include, but are not limited to Craig, Steamboat Springs, Walden, Granby, Hot Sulphur Springs, Kremmling, Meeker, Rangely, Glenwood Springs, Eagle, Vail, Breckenridge, Central City, Georgetown, Grand Junction, Aspen, Leadville, Fairplay, Delta, Gunnison, Buena Vista, Salida, Montrose, Nucla, Ouray, Telluride, Dove Creek, Cortez and Saguache. WHEN...900 AM Thursday July 02 to 900 AM Friday July 03 IMPACTS...Areas downwind of large fires in southwestern Colorado and southeastern Utah could have periods of moderate to heavy smoke through at least Friday morning. HEALTH INFORMATION...Public Health Recommendations: If smoke is thick or becomes thick in your neighborhood you may want to remain indoors. This is especially true for those with heart disease, respiratory illnesses, the very young, and older adults. Consider limiting outdoor activity when moderate to heavy smoke is present. Consider relocating temporarily if smoke is present indoors and is making you ill. If visibility is less than 5 miles in smoke in your neighborhood, smoke has reached levels that are unhealthy.

Red Flag Warning issued July 1 at 9:48PM MDT until July 2 at 8:00PM MDT by NWS Grand Junction CO

Effective: Wed July 1, 2026, 9:48 PM
Expires: Thu July 2, 2026, 8:00 PM

* AFFECTED AREA...In Colorado, Fire Weather Zone 207 Southwest Colorado Lower Forecast Area, Fire Weather Zone 290 Paradox Valley Forecast Area, Fire Weather Zone 291 Northern San Juan Forecast Area, Fire Weather Zone 292 North Fork Forecast Area, Fire Weather Zone 293 Gunnison Basin Forecast Area and Fire Weather Zone 294 Southwest Colorado Upper West Forecast Area. In Utah, Fire Weather Zone 491 Southeast Utah. * TIMING...From noon to 8 PM MDT Thursday. * WINDS...Southwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...6 to 11 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

Red Flag Warning issued July 2 at 12:46PM MDT until July 2 at 8:00PM MDT by NWS Grand Junction CO

Effective: Thu July 2, 2026, 12:46 PM
Expires: Fri July 3, 2026, 12:00 AM

The National Weather Service in Grand Junction has issued a Red Flag Warning for gusty winds, low relative humidity and dry fuels, which is in effect from noon to 8 PM MDT Friday. * AFFECTED AREA...In Colorado, Fire Weather Zone 207 Southwest Colorado Lower Forecast Area, Fire Weather Zone 290 Paradox Valley Forecast Area, Fire Weather Zone 291 Northern San Juan Forecast Area, Fire Weather Zone 292 North Fork Forecast Area, Fire Weather Zone 293 Gunnison Basin Forecast Area and Fire Weather Zone 294 Southwest Colorado Upper West Forecast Area. * TIMING...For the first Red Flag Warning, until 8 PM MDT this evening. For the second Red Flag Warning, from noon to 8 PM MDT Friday. * WINDS...Southwest 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...6 to 11 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

Red Flag Warning issued July 2 at 12:46PM MDT until July 3 at 8:00PM MDT by NWS Grand Junction CO

Effective: Thu July 2, 2026, 12:46 PM
Expires: Fri July 3, 2026, 12:00 AM

The National Weather Service in Grand Junction has issued a Red Flag Warning for gusty winds, low relative humidity and dry fuels, which is in effect from noon to 8 PM MDT Friday. * AFFECTED AREA...In Colorado, Fire Weather Zone 207 Southwest Colorado Lower Forecast Area, Fire Weather Zone 290 Paradox Valley Forecast Area, Fire Weather Zone 291 Northern San Juan Forecast Area, Fire Weather Zone 292 North Fork Forecast Area, Fire Weather Zone 293 Gunnison Basin Forecast Area and Fire Weather Zone 294 Southwest Colorado Upper West Forecast Area. * TIMING...For the first Red Flag Warning, until 8 PM MDT this evening. For the second Red Flag Warning, from noon to 8 PM MDT Friday. * WINDS...Southwest 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...6 to 11 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

Air Quality Alert issued July 2 at 2:10PM MDT by NWS Grand Junction CO

Effective: Thu July 2, 2026, 2:10 PM
Expires: Fri July 3, 2026, 9:00 AM

The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Ozone. WHERE...Archuleta and La Plata Counties. Locations include, but are not limited to Pagosa Springs, Durango, Hermosa, Honeyville, Rockwood, and the Southern Ute Reservation. WHEN...200 PM Thursday July 02 to 1000 PM Thursday July 02 IMPACTS...Ozone concentrations in the Unhealthy for Sensitive Groups category are likely within the advisory area Thursday afternoon and evening. HEALTH INFORMATION...Public Health Recommendations: Increasing likelihood of respiratory symptoms and breathing discomfort in active children and adults and people with lung disease, such as asthma. Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy outdoor exertion.