John W. Flannagan Reservoir water level: Flannagan 
2.7 ft high
John W. Flannagan Reservoir is 2.7 ft above full pool, much higher than usual for early November. The J.W. Flannagan Dam gauge read 1,389.70 ft at 9:30 AM EST, November 4, 2026.
How Flannagan stands today
- 1,389.70 Feet above sea level9:30 AM EST, November 4, 2026, NGVD29 datum.
- +2.73 Feet from full poolFull pool today is 1,386.97 ft; it rises to 1,396.00 ft in the high season.
- +2.06 Feet from normal for Nov 4Median of 2013–2025 is 1,387.64 ft. Today ranks in the 100th percentile, the highest for this date in 14 years.
- +2.10 Feet from a year ago1,387.60 ft on November 4, 2025.
- −5.41 Feet over 30 days−2.18 ft over the past 7 days.
The past year, day by day
The shaded band is where Flannagan usually sits on each date: the middle 80% of years from 2013 to 2025. The blue line is the past 12 months; the sand line is the 12 months before. Hover or use the arrow keys to read any day.
- Past 12 months
- The 12 months before
- Normal range (middle 80% of years)
- Median
- Full pool
Monthly average since 2013
Readings for the last 30 days
| Date | Level (ft) | Normal (ft) |
|---|---|---|
| November 4, 2026 | 1,389.78 | 1,387.64 |
| November 3, 2026 | 1,390.07 | 1,387.90 |
| November 2, 2026 | 1,390.45 | 1,388.16 |
| November 1, 2026 | 1,390.74 | 1,388.41 |
| October 31, 2026 | 1,391.03 | 1,388.69 |
| October 30, 2026 | 1,391.33 | 1,388.94 |
| October 29, 2026 | 1,391.64 | 1,389.20 |
| October 28, 2026 | 1,391.88 | 1,389.47 |
| October 27, 2026 | 1,391.96 | 1,389.74 |
| October 26, 2026 | 1,392.11 | 1,390.03 |
| October 25, 2026 | 1,392.48 | 1,390.30 |
| October 24, 2026 | 1,393.10 | 1,390.57 |
| October 23, 2026 | 1,393.70 | 1,390.84 |
| October 22, 2026 | 1,394.22 | 1,391.11 |
| October 21, 2026 | 1,394.26 | 1,391.37 |
| Date | Level (ft) | Normal (ft) |
|---|---|---|
| October 20, 2026 | 1,394.25 | 1,391.63 |
| October 19, 2026 | 1,394.26 | 1,391.87 |
| October 18, 2026 | 1,394.53 | 1,392.13 |
| October 17, 2026 | 1,394.87 | 1,392.37 |
| October 16, 2026 | 1,394.98 | 1,392.61 |
| October 15, 2026 | 1,394.78 | 1,392.86 |
| October 14, 2026 | 1,394.55 | 1,393.10 |
| October 13, 2026 | 1,394.50 | 1,393.34 |
| October 12, 2026 | 1,394.42 | 1,393.59 |
| October 11, 2026 | 1,394.39 | 1,393.83 |
| October 10, 2026 | 1,394.61 | 1,394.07 |
| October 9, 2026 | 1,394.87 | 1,394.33 |
| October 8, 2026 | 1,394.90 | 1,394.57 |
| October 7, 2026 | 1,394.94 | 1,394.81 |
| October 6, 2026 | 1,395.01 | 1,395.06 |
Is the water above your dock?
Enter the elevation of your dock, ramp end or a mark on your shoreline, in feet above sea level (NGVD29, the datum the Army Corps of Engineers uses for this gauge). You will see how far the water is above or below it today, and how often it dipped below it in each month since 2016.
| Month | Low year (10th %) | Median | High year (90th %) | Days above your mark |
|---|---|---|---|---|
| January | 1,380.00 | 1,380.00 | 1,380.00 | — |
| February | 1,380.00 | 1,380.00 | 1,380.00 | — |
| March | 1,380.00 | 1,380.00 | 1,380.00 | — |
| April | 1,382.18 | 1,395.45 | 1,396.00 | — |
| May | 1,396.00 | 1,396.00 | 1,396.00 | — |
| June | 1,396.00 | 1,396.00 | 1,396.00 | — |
| July | 1,396.00 | 1,396.00 | 1,396.00 | — |
| August | 1,396.00 | 1,396.00 | 1,396.00 | — |
| September | 1,396.00 | 1,396.00 | 1,396.00 | — |
| October | 1,389.50 | 1,392.90 | 1,395.50 | — |
| November | 1,381.50 | 1,384.80 | 1,387.90 | — |
| December | 1,380.00 | 1,380.00 | 1,380.00 | — |
Other Virginia lakes, lowest first
| Lake | Level (ft) | Vs full pool |
|---|---|---|
| North Fork of Pound Lake | 1,608.00 | 2.3 ft above |
| Lake Moomaw | 1,565.52 | 37.1% full |
| Philpott Lake | 970.52 | 3.5 ft below |
 Kerr Lake (Buggs Island) | 287.73 | — |
Flannagan questions
What is full pool at John W. Flannagan Reservoir?
Full pool at John W. Flannagan Reservoir is 1,386.97 ft above sea level today. The Army Corps of Engineers changes it through the year, up to 1,396.00 ft in the high season. The agency's own term for it is “top of normal.”
Is John W. Flannagan Reservoir full right now?
It is over full: 2.7 ft above full pool, with flood storage up to 1,446.00 ft. Water above full pool is flood water the dam is holding back and releasing over time.
Is John W. Flannagan Reservoir lower than normal for early November?
No, it is higher than normal. The median level on Nov 4 across 2013–2025 is 1,387.64 ft, and today's 1,389.70 ft is +2.06 ft from it. In 8 of 10 years the level on this date fell between 1,387.64 and 1,387.65 ft.
How does John W. Flannagan Reservoir compare with last year?
A year ago, on November 4, 2025, it stood at 1,387.60 ft. It is 2.10 ft higher now.
What are the highest and lowest levels since 2013?
In the daily record we hold, which starts in 2013, the highest daily level was 1,396.36 ft on September 27, 2026 and the lowest was 1,380.00 ft on January 2, 2013.
How often is this page updated?
We pull new readings from the U.S. Army Corps of Engineers several times a day. This page was last rebuilt on Wed, 04 Nov 2026 15:13:17 UTC. Readings are provisional and can be revised by the agency.