Dead Run at Whann Avenue near McLean water level

Name: Dead Run at Whann Avenue near McLean water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Dead Run, Virginia, United States

Directions

Below flood stage

Water level

1.15ft Steady over the last 24 hours

Measured Oct 20, 2026, 09:25 PM EDT (18 min ago)

Flow: 0.5 cfs
Water temperature: 56 °F

History

7 days

Water level Minor flood stage

What this means

Water levels are unremarkable at Dead Run at Whann Avenue near McLean, where the gauge shows 1.15 ft.

It is 7.85 ft below the flood stage of 9.00 ft.

It has barely moved over the past 24 hours. The 30-day range is 1.14 ft – 1.77 ft.

Fall is often low-water season on rivers, until steadier rain returns. The water temperature at the gauge is 56 °F.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 10.54 ftDecember 25, 2022

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

For reference, flood stage is 9.00 ft.

What happens at each level

11.00 ft: Significant flooding is occurring, with numerous roads flooded.
10.00 ft: Numerous side streets and footbridges are flooded near Dead Run. Water approaches Georgetown Pike.
9.00 ft: Water approaches yards near the stream.
1.15 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Rank	Level	Date
1	10.54 ft	December 25, 2022
2	8.18 ft	July 8, 2019
3	7.42 ft	August 18, 2010
4	7.20 ft	September 1, 2021
5	6.85 ft	September 8, 2011

Weather at the gauge

Rain in the last 3 days: 0.03 in. Rain that falls upstream can take hours or days to show up at a river gauge.

20 Tue 71° 43° – Wind 11 mph

21 Wed 65° 42° – Wind 10 mph

22 Thu 67° 39° – Wind 11 mph

23 Fri 63° 47° – Wind 9 mph

24 Sat 63° 47° – Wind 5 mph

25 Sun 65° 48° – Wind 5 mph

26 Mon 69° 48° – Wind 5 mph

Forecast: Open-Meteo

Sunrise 07:25 AM Sunset 06:23 PM Daylight 10 hr, 58 min Waxing gibbous 73%

Map

Other gauges on Dead Run

Gauge	Level	Compared with normal	24 hours	Distance
Dead Run near CatonsvilleRiver gauge, Dead Run	0.36 ft	Below flood stage	+0.01 ft	33 mi
Dead Run at WoodlawnRiver gauge, Dead Run	0.29 ft	Below flood stage	−0.02 ft	34 mi
Dead Run at FranklintownRiver gauge, Dead Run	0.39 ft	Below flood stage	−0.01 ft	35 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Potomac River near Wash, Dc Little Falls Pump StationRiver gauge, Potomac River	3.41 ft	Below flood stage	−0.07 ft	2.7 mi
Difficult Run near Great FallsRiver gauge, Difficult Run	2.74 ft	Below flood stage	−0.35 ft	3.9 mi
Potomac River at Wisconsin Ave, WashingtonEstuary gauge, Potomac River	0.65 ft	Below flood stage	+0.40 ft	7 mi
Rock Creek at Joyce Rd WashingtonRiver gauge, Rock Creek	1.31 ft	Below flood stage	−0.07 ft	7 mi
The Glade near Howland Drive at RestonRiver gauge, The Glade	0.2 cfs	High	±0	9 mi
Turkey Branch near RockvilleRiver gauge, Turkey Branch	4.29 ft	Below flood stage	+0.01 ft	9 mi
Snakeden Branch above Lake Audubon at RestonRiver gauge, Snakeden Branch	0.2 cfs	Normal	±0	9 mi
Sligo Creek near Takoma ParkRiver gauge, Sligo Creek	0.59 ft	Below flood stage	−0.02 ft	9 mi

Questions and answers

What is flood stage for Dead Run at Whann Avenue near McLean?

The official flood stage is 9.00 ft. The level is currently 7.85 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Dead Run at Whann Avenue near McLean today?

On Oct 20, 2026, 09:25 PM EDT, the water level was 1.15 ft. Steady over the last 24 hours.

Is Dead Run at Whann Avenue near McLean rising or falling?

Steady over the last 24 hours. Down 0.04 ft over the last 7 days.

Is the level of Dead Run at Whann Avenue near McLean normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Dead Run at Whann Avenue near McLean?

The highest level on record is 10.54 ft on December 25, 2022.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01646305 (Agency page)
Coordinates: 38.95978, -77.17567 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	1.15 ft	2026-10-21 01:25	Provisional
Flow	0.5 cfs	2026-10-21 01:25	Provisional
Water temperature	56 °F	2026-10-21 01:15	Provisional

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How to cite

U.S. Geological Survey: Dead Run at Whann Avenue near McLean (usgs:01646305). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/virginia/dead-run-at-whann-avenue-near-mclean

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer