Station Name: JOHNSON CREEK AT SYCAMORE, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 269 feet / 82 meters

Nearest Address:
15083 SE Foster Rd
Portland, OR 97236
Multnomah County

GPS Coordinates: 45.47745556, -122.5080194

Nearby Water Temperatures

Heat Advisory issued September 1 at 3:05AM PDT until September 3 at 9:00PM PDT by NWS Portland OR

Effective: Mon September 1, 2025, 3:05 AM
Expires: Mon September 1, 2025, 5:00 PM

* WHAT...Afternoon high temperatures in the mid to upper 90s and overnight low temperatures in the mid 60s to low 70s expected. * WHERE...Western and Central Columbia River Gorge and the Hood River Valley. * WHEN...From noon Tuesday to 9 PM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses.

Drink plenty of fluids, stay in a cool place during the heat of the day, stay out of the sunshine, and check up on relatives and neighbors. For those without air conditioning, use fans to keep air moving. Keep windows closed during the day and open at night, unless air quality is degraded due to wildfire smoke. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or the evening. Take action when you see symptoms of heat exhaustion and heat stroke. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

Heat Advisory issued September 1 at 3:05AM PDT until September 3 at 9:00PM PDT by NWS Portland OR

Effective: Mon September 1, 2025, 3:05 AM
Expires: Mon September 1, 2025, 5:00 PM

* WHAT...Afternoon high temperatures in the mid to upper 90s and overnight low temperatures in the mid 60s to low 70s expected. * WHERE...Western and Central Columbia River Gorge and the Hood River Valley. * WHEN...From noon Tuesday to 9 PM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses.

Drink plenty of fluids, stay in a cool place during the heat of the day, stay out of the sunshine, and check up on relatives and neighbors. For those without air conditioning, use fans to keep air moving. Keep windows closed during the day and open at night, unless air quality is degraded due to wildfire smoke. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or the evening. Take action when you see symptoms of heat exhaustion and heat stroke. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

Fire Weather Watch issued September 1 at 3:10AM PDT until September 2 at 8:00PM PDT by NWS Portland OR

Effective: Mon September 1, 2025, 3:10 AM
Expires: Mon September 1, 2025, 7:00 PM

* AFFECTED AREA...In Oregon, Fire Weather Zone 689 Northern Willamette National Forest and Fire Weather Zone 690 Southern Willamette National Forest. * THUNDERSTORMS...A 15 to 25% chance of thunderstorms. * OUTFLOW WINDS...Instantaneous gusts as high as 40 mph. Gusts at these speeds can be observed tens of miles away from the core of the thunderstorm. * DRY AND UNSTABLE...Unstable conditions with elevated mixing heights may promote pyroconvective activity. * IMPACTS...Conditions may be favorable for rapid fire spread which may threaten life and property. Thunderstorm outflow winds may result in unanticipated erratic fire spread. High instability may result in fire growth. Frequent lightning and critically dry fuels may result in fire starts.

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 September 1 at 3:10AM PDT until September 2 at 8:00PM PDT by NWS Portland OR

Effective: Mon September 1, 2025, 3:10 AM
Expires: Mon September 1, 2025, 7:00 PM

* AFFECTED AREA...In Oregon, Fire Weather Zone 689 Northern Willamette National Forest and Fire Weather Zone 690 Southern Willamette National Forest. * THUNDERSTORMS...A 15 to 25% chance of thunderstorms. * OUTFLOW WINDS...Instantaneous gusts as high as 40 mph. Gusts at these speeds can be observed tens of miles away from the core of the thunderstorm. * DRY AND UNSTABLE...Unstable conditions with elevated mixing heights may promote pyroconvective activity. * IMPACTS...Conditions may be favorable for rapid fire spread which may threaten life and property. Thunderstorm outflow winds may result in unanticipated erratic fire spread. High instability may result in fire growth. Frequent lightning and critically dry fuels may result in fire starts.

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

Heat Advisory issued September 1 at 3:05AM PDT until September 3 at 9:00PM PDT by NWS Portland OR

Effective: Mon September 1, 2025, 3:05 AM
Expires: Mon September 1, 2025, 5:00 PM

* WHAT...Afternoon high temperatures in the mid to upper 90s and overnight low temperatures in the mid 60s to low 70s expected. * WHERE...Western and Central Columbia River Gorge and the Hood River Valley. * WHEN...From noon Tuesday to 9 PM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses.

Drink plenty of fluids, stay in a cool place during the heat of the day, stay out of the sunshine, and check up on relatives and neighbors. For those without air conditioning, use fans to keep air moving. Keep windows closed during the day and open at night, unless air quality is degraded due to wildfire smoke. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or the evening. Take action when you see symptoms of heat exhaustion and heat stroke. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.