East Fork Lake (William H. Harsha) water level: East Fork 
2.9 ft low
East Fork Lake (William H. Harsha) is 2.9 ft below full pool, about normal for early November. The William H. Harsha Lake gauge read 730.10 ft at 6:00 AM EST, November 4, 2026.
How East Fork stands today
- 730.10 Feet above sea level6:00 AM EST, November 4, 2026, NGVD29 datum.
- −2.90 Feet from full poolFull pool today is 733.00 ft.
- 26.6 Percent of conservation storageWater held above bottom of normal, as a share of the pool's capacity.
- −0.23 Feet from normal for Nov 4Median of 2002–2025 is 730.33 ft. Today ranks in the 29th percentile.
- −0.35 Feet from a year ago730.45 ft on November 4, 2025.
- −1.38 Feet over 30 days−0.24 ft over the past 7 days.
The past year, day by day
The shaded band is where East Fork usually sits on each date: the middle 80% of years from 2002 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 2006
Readings for the last 30 days
| Date | Level (ft) | Normal (ft) |
|---|---|---|
| November 4, 2026 | 730.09 | 730.33 |
| November 3, 2026 | 730.11 | 730.35 |
| November 2, 2026 | 730.14 | 730.32 |
| November 1, 2026 | 730.17 | 730.43 |
| October 31, 2026 | 730.22 | 730.47 |
| October 30, 2026 | 730.27 | 730.48 |
| October 29, 2026 | 730.31 | 730.49 |
| October 28, 2026 | 730.34 | 730.49 |
| October 27, 2026 | 730.38 | 730.53 |
| October 26, 2026 | 730.42 | 730.55 |
| October 25, 2026 | 730.45 | 730.57 |
| October 24, 2026 | 730.49 | 730.61 |
| October 23, 2026 | 730.52 | 730.65 |
| October 22, 2026 | 730.56 | 730.68 |
| October 21, 2026 | 730.60 | 730.72 |
| Date | Level (ft) | Normal (ft) |
|---|---|---|
| October 20, 2026 | 730.63 | 730.75 |
| October 19, 2026 | 730.70 | 730.83 |
| October 18, 2026 | 730.80 | 730.91 |
| October 17, 2026 | 730.90 | 730.93 |
| October 16, 2026 | 730.97 | 730.95 |
| October 15, 2026 | 731.07 | 730.99 |
| October 14, 2026 | 731.14 | 731.00 |
| October 13, 2026 | 731.19 | 731.04 |
| October 12, 2026 | 731.23 | 731.07 |
| October 11, 2026 | 731.24 | 731.11 |
| October 10, 2026 | 731.26 | 731.16 |
| October 9, 2026 | 731.29 | 731.21 |
| October 8, 2026 | 731.33 | 731.28 |
| October 7, 2026 | 731.37 | 731.32 |
| October 6, 2026 | 731.41 | 731.38 |
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 | 729.08 | 729.36 | 732.32 | — |
| February | 729.05 | 729.43 | 746.21 | — |
| March | 729.07 | 729.95 | 743.95 | — |
| April | 729.86 | 732.01 | 739.65 | — |
| May | 733.00 | 733.21 | 736.58 | — |
| June | 732.66 | 733.14 | 736.08 | — |
| July | 732.25 | 733.15 | 733.94 | — |
| August | 731.76 | 733.13 | 734.62 | — |
| September | 730.51 | 732.48 | 733.95 | — |
| October | 729.58 | 730.60 | 731.59 | — |
| November | 729.10 | 729.67 | 731.00 | — |
| December | 729.02 | 729.23 | 730.86 | — |
Other Ohio lakes, lowest first
| Lake | Level (ft) | Vs full pool |
|---|---|---|
| Deer Creek Lake | 803.50 | 1.4 ft above |
 Leesville Lake | 962.48 | 97.1% full |
 Atwood Lake | 927.63 | 6.2 ft above |
 Tappan Lake | 898.98 | 97.9% full |
 Mosquito Creek Lake | 898.76 | At pool |
| Berlin Lake | 1,016.08 | At pool |
 Caesar Creek Lake | 846.89 | 29.4% full |
| Michael J. Kirwan Reservoir | 980.43 | At pool |
| Clendening Lake | 897.84 | 99.0% full |
 Charles Mill Lake | 996.78 | 95.8% full |
| Paint Creek Lake | 792.89 | 0.8 ft above |
 Piedmont Lake | 912.77 | 98.5% full |
| C. J. Brown Reservoir | 1,010.13 | 37.4% full |
 Alum Creek Lake | 886.51 | 1.5 ft below |
East Fork questions
What is full pool at East Fork Lake (William H. Harsha)?
Full pool at East Fork Lake (William H. Harsha) is 733.00 ft above sea level today. The agency's own term for it is “top of conservation.”
Is East Fork Lake (William H. Harsha) full right now?
No. It is 2.9 ft below full pool and holds 26.6% of its conservation storage.
Is East Fork Lake (William H. Harsha) lower than normal for early November?
No, it is close to normal. The median level on Nov 4 across 2002–2025 is 730.33 ft, and today's 730.10 ft is −0.23 ft from it. In 8 of 10 years the level on this date fell between 728.97 and 731.19 ft.
How does East Fork Lake (William H. Harsha) compare with last year?
A year ago, on November 4, 2025, it stood at 730.45 ft. It is 0.35 ft lower now.
What are the highest and lowest levels since 2002?
In the daily record we hold, which starts in 2002, the highest daily level was 776.73 ft on May 4, 2011 and the lowest was 723.24 ft on November 30, 2008.
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.