Station Name: ORTEGA RIVER SALINITY AT JACKSONVILLE, FL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 23 feet

Nearest Address:
5786 Collins Rd
Jacksonville, FL 32244
Duval County

GPS Coordinates: 30.20118056, -81.7304

Nearby Water Temperatures

Red Flag Warning issued February 21 at 1:10PM EST until February 22 at 9:00PM EST by NWS Jacksonville FL

Effective: Sat February 21, 2026, 1:10 PM
Expires: Sun February 22, 2026, 4:00 AM

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR LOW HUMIDITY AND STRONG NORTHWESTERLY WINDS FOR SOUTHEAST GEORGIA AND NORTHEAST FLORIDA... The National Weather Service in Jacksonville has issued a Red Flag Warning for critically low humidity and strong northwesterly winds, which is in effect from 1 PM to 9 PM EST Sunday. A Fire Weather Watch has also been issued. This Fire Weather Watch for an additional period of critical fire weather conditions and in effect from Monday afternoon through Monday evening. * AFFECTED AREA...In Florida, Suwannee, Baker, Inland Nassau, Union, Bradford, Gilchrist, Inland Flagler, Eastern Hamilton, Coastal Nassau, Coastal Duval, Eastern Clay, Eastern Alachua, Eastern Putnam, Coastal Flagler, Eastern Marion, Western Hamilton, Trout River, Western Clay, Northeast Coastal St. Johns, Western Alachua, Western Putnam, Central Marion, Northern Columbia, South Central Duval, Southeast Coastal St. Johns, Western Marion, Southeastern Columbia, Western Duval, Northern Inland St. Johns, Southwestern Columbia, Southern Inland St. Johns and Western St. Johns. In Georgia, Echols, Clinch, Northeastern Charlton, Southern Ware and Western Charlton. * TIMING...1 PM to 9 PM. * WINDS...Northwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 24 percent. * TEMPERATURES...Up to 69. * IMPACTS...Ongoing wildfires will become difficult to contain and newly ignited fires may exhibit erratic fire behavior. Rapid rates of wildfire spread is expected.

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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

Fire Weather Watch issued February 21 at 1:10PM EST until February 23 at 7:00PM EST by NWS Jacksonville FL

Effective: Sat February 21, 2026, 1:10 PM
Expires: Sun February 22, 2026, 4:00 AM

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR LOW HUMIDITY AND STRONG NORTHWESTERLY WINDS FOR SOUTHEAST GEORGIA AND NORTHEAST FLORIDA... The National Weather Service in Jacksonville has issued a Red Flag Warning for critically low humidity and strong northwesterly winds, which is in effect from 1 PM to 9 PM EST Sunday. A Fire Weather Watch has also been issued. This Fire Weather Watch for an additional period of critical fire weather conditions and in effect from Monday afternoon through Monday evening. * AFFECTED AREA...In Florida, Suwannee, Baker, Inland Nassau, Union, Bradford, Gilchrist, Inland Flagler, Eastern Hamilton, Coastal Nassau, Coastal Duval, Eastern Clay, Eastern Alachua, Eastern Putnam, Coastal Flagler, Eastern Marion, Western Hamilton, Trout River, Western Clay, Northeast Coastal St. Johns, Western Alachua, Western Putnam, Central Marion, Northern Columbia, South Central Duval, Southeast Coastal St. Johns, Western Marion, Southeastern Columbia, Western Duval, Northern Inland St. Johns, Southwestern Columbia, Southern Inland St. Johns and Western St. Johns. In Georgia, Echols, Clinch, Northeastern Charlton, Southern Ware and Western Charlton. * TIMING...1 PM to 9 PM. * WINDS...Northwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 24 percent. * TEMPERATURES...Up to 69. * IMPACTS...Ongoing wildfires will become difficult to contain and newly ignited fires may exhibit erratic fire behavior. Rapid rates of wildfire spread is expected.

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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

Red Flag Warning issued February 22 at 12:53AM EST until February 22 at 9:00PM EST by NWS Jacksonville FL

Effective: Sun February 22, 2026, 12:53 AM
Expires: Sun February 22, 2026, 9:00 PM

...RED FLAG WARNING THIS AFTERNOON AND EVENING FOR LOCATIONS FROM WAYCROSS SOUTHWARD... ...FIRE WEATHER WATCHES REMAIN POSTED AREA-WIDE FROM EARLY MONDAY AFTERNOON THROUGH EARLY MONDAY EVENING... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR LOW HUMIDITY AND STRONG NORTHWESTERLY WINDS FOR ALL OF SOUTHEAST GEORGIA, NORTHEAST AND NORTH CENTRAL FLORIDA... * AFFECTED AREA...In Florida, Suwannee, Baker, Inland Nassau, Union, Bradford, Gilchrist, Inland Flagler, Eastern Hamilton, Coastal Nassau, Coastal Duval, Eastern Clay, Eastern Alachua, Eastern Putnam, Coastal Flagler, Eastern Marion, Western Hamilton, Trout River, Western Clay, Northeast Coastal St. Johns, Western Alachua, Western Putnam, Central Marion, Northern Columbia, South Central Duval, Southeast Coastal St. Johns, Western Marion, Southeastern Columbia, Western Duval, Northern Inland St. Johns, Southwestern Columbia, Southern Inland St. Johns and Western St. Johns. In Georgia, Echols, Clinch, Northeastern Charlton, Southern Ware and Western Charlton. * TIMING...1 PM to 9 PM Sunday. * WINDS...Northwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 20 percent. * TEMPERATURES...Up to 72. * IMPACTS...Ongoing wildfires will become difficult to contain and newly ignited fires may exhibit erratic fire behavior. Rapid rates of wildfire spread is expected.

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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

Fire Weather Watch issued February 22 at 12:53AM EST until February 23 at 7:00PM EST by NWS Jacksonville FL

Effective: Sun February 22, 2026, 12:53 AM
Expires: Sun February 22, 2026, 9:00 PM

...RED FLAG WARNING THIS AFTERNOON AND EVENING FOR LOCATIONS FROM WAYCROSS SOUTHWARD... ...FIRE WEATHER WATCHES REMAIN POSTED AREA-WIDE FROM EARLY MONDAY AFTERNOON THROUGH EARLY MONDAY EVENING... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR LOW HUMIDITY AND STRONG NORTHWESTERLY WINDS FOR ALL OF SOUTHEAST GEORGIA, NORTHEAST AND NORTH CENTRAL FLORIDA... * AFFECTED AREA...In Florida, Suwannee, Baker, Inland Nassau, Union, Bradford, Gilchrist, Inland Flagler, Eastern Hamilton, Coastal Nassau, Coastal Duval, Eastern Clay, Eastern Alachua, Eastern Putnam, Coastal Flagler, Eastern Marion, Western Hamilton, Trout River, Western Clay, Northeast Coastal St. Johns, Western Alachua, Western Putnam, Central Marion, Northern Columbia, South Central Duval, Southeast Coastal St. Johns, Western Marion, Southeastern Columbia, Western Duval, Northern Inland St. Johns, Southwestern Columbia, Southern Inland St. Johns and Western St. Johns. In Georgia, Echols, Clinch, Northeastern Charlton, Southern Ware and Western Charlton. * TIMING...1 PM to 9 PM Sunday. * WINDS...Northwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 20 percent. * TEMPERATURES...Up to 72. * IMPACTS...Ongoing wildfires will become difficult to contain and newly ignited fires may exhibit erratic fire behavior. Rapid rates of wildfire spread is expected.

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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

Freeze Watch issued February 22 at 12:42AM EST until February 24 at 9:00AM EST by NWS Jacksonville FL

Effective: Sun February 22, 2026, 12:42 AM
Expires: Mon February 23, 2026, 1:45 AM

* WHAT...Sub-freezing temperatures as low as 27 possible. * WHERE...Portions of northeast and northern Florida. * WHEN...From late Monday night through Tuesday morning. * IMPACTS...Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.