Frankstown Branch Juniata River at Williamsburg, PA

The last 7 days and the forecast

NWS forecast issued Mon, Oct 12, 2:51 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

What floods at each level

From the National Weather Service, highest first.

• 26 ftFEMA 0.2% Annual Chance Flood Level (500-year flood).
• 22 ftFEMA 1% Annual Chance Flood Level (100-year flood).
• 21 ftFEMA 2% Annual Chance Flood Level (50-year flood). Flood waters begin to reach the Weller Road Bridge near Canoe Creek State Park.
• 19.5 ftFlood of record from the remnants of Hurricane Ivan in September 2004.
• 18 ftMost of Williamsburg is affected by high water. Very few houses on the right bank are above this level.
• 17.5 ftFEMA 10% Annual Chance Flood Level (10-year flood).
• 17 ftMany homes on the right, or south bank are affected by high water. The south approach to the highway bridge is unundated. A number of other streets and roads in the area are closed.
• 15 ftMany homes on the right, or south bank will be affected by high water.
• 13 ftSections of route 866 from Williamsburg to Ganister are covered by flood waters.
• 12 ftThe right, or south bank overflows. The Road near the river upstream of Williamsburg is inundated. A few homes experience basement flooding.

Highest crests on record

1. 19.46 ft — September 18, 2004
2. 19.15 ft — January 19, 1996
3. 19.1 ft — June 1, 1889
4. 18.58 ft — March 18, 1936
5. 18.39 ft — June 23, 1972

Recent crests: 15.47 ft (April 3, 2024) · 13.21 ft (May 8, 2022) · 16.55 ft (September 2, 2021) · 16.98 ft (September 10, 2018) · 12.58 ft (August 4, 2018)

Up and down the river, and nearby

• Juniata River at Huntingdon, PA
• Little Juniata River at Spruce Creek, PA
• Raystown Branch Juniata River near Huntingdon at Raystown Lake - Below Dam, PA
• Juniata River at Mapleton Depot, PA
• Bald Eagle Creek (South) at Tyrone, PA
• Raystown Branch Juniata River at Saxton, PA
• Aughwick Creek at Shirleysburg, PA
• Aughwick Creek near Three Springs, PA