Station Name: DIFFICULT RUN ABOVE FOX LAKE NEAR FAIRFAX, VA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 328 feet / 100 meters

Nearest Address:
11200 Lapham Dr
Oakton, VA 22124
Fairfax County

GPS Coordinates: 38.88469518, -77.3324293

Nearby Water Temperatures

Heat Advisory issued July 25 at 9:22AM EDT until July 25 at 8:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Fri July 25, 2025, 9:22 AM
Expires: Fri July 25, 2025, 5:30 PM

* WHAT...Heat index values up to 107 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 8 PM EDT this evening. * 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.

Heat Advisory issued July 25 at 9:22AM EDT until July 25 at 8:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Fri July 25, 2025, 9:22 AM
Expires: Fri July 25, 2025, 5:30 PM

* WHAT...Heat index values up to 107 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 8 PM EDT this evening. * 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.

Heat Advisory issued July 25 at 9:22AM EDT until July 25 at 8:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Fri July 25, 2025, 9:22 AM
Expires: Fri July 25, 2025, 5:30 PM

* WHAT...Heat index values up to 107 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 8 PM EDT this evening. * 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.

Heat Advisory issued July 25 at 9:22AM EDT until July 25 at 8:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Fri July 25, 2025, 9:22 AM
Expires: Fri July 25, 2025, 5:30 PM

* WHAT...Heat index values up to 107 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 8 PM EDT this evening. * 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.

Heat Advisory issued July 25 at 9:22AM EDT until July 25 at 8:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Fri July 25, 2025, 9:22 AM
Expires: Fri July 25, 2025, 5:30 PM

* WHAT...Heat index values up to 107 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 8 PM EDT this evening. * 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.