Difficult Run near Great Falls
Flood levels
Official flood levels at this gauge: action stage begins at 9.0 ft; minor flooding begins at 11.0 ft; moderate flooding begins at 13.0 ft; major flooding begins at 20.0 ft.
| Action stage | 9.0 ft |
|---|---|
| Minor flooding | 11.0 ft |
| Moderate flooding | 13.0 ft |
| Major flooding | 20.0 ft |
Highest recorded crests
- 21.4 ft on Jun 22, 1972 (historic crest)
- 17.5 ft on Sep 8, 2011 (historic crest)
- 16.6 ft on Sep 6, 2008 (historic crest)
- 15.0 ft on Jun 26, 2006 (historic crest)
What the water does
National Weather Service impact statements for this gauge, in the Weather Service's own words.
| 11.0 ft | Leigh Mill Road floods near Difficult Run. |
|---|---|
| 13.0 ft | Water reaches the intersection of Leigh Mill Road and Kelso Road. |
| 20.0 ft | Water approaches structures near the stream. |
Forecast office: NWS Sterling · River Forecast Center: Middle Atlantic River Forecast Center.
Difficult Run near Great Falls in your pocket
Tidora puts this spot on your Home Screen and Lock Screen with free widgets, and sends free flood alerts before the water reaches the levels that matter to you. No account, no subscription needed for either.
Download Tidora on the App Store
Tidora is preparing for launch; these pages go fully live when the app ships.
Nearby stations and gauges
- Rocky Run near Tysons Corner (Pulte/McLean Regional Pond) NWS gauge · 2.7 mi
- Difficult Run at Browns Mill Road / Wolf Trap NWS gauge · 2.9 mi
- Colvin Run at Lake Fairfax near Reston NWS gauge · 3.9 mi
- Dead Run near McLean NWS gauge · 3.9 mi
- Potomac River near Washington DC (Little Falls) NWS gauge · 6.6 mi
- Holmes Run at Fairview Lake NWS gauge · 7.5 mi