Weather Rules

Cold Weather Rules

December 1 – January 31: 

• Sandy Run Park is closed; no rowing.

February 1 – March 31: 

• Members must go out in at least groups of two shells, and may take out 2x, 4x or 4- shells only. 

• NO CLUB SINGLES may be taken out during this period, even in unseasonably warm weather conditions.

NVRPA Cold Weather Restrictions

"When air temperature is below 40 degrees and/or water temperature below 50 degrees, [...] adult clubs and individuals not accompanied by a launch must row in pairs and be within 35 meters of one another." (Sandy Run Regional Park And Bull Run Marina Operating Procedures)  Alternatively, you may go out accompanied by a launch that remains within 35 meters of your shell.

Lightning and Storm Rules

At the first sound of thunder, you must return to Sandy Run docks. If the storm is upon you, take your shell ashore and wait for the storm to pass.

If the lightning detector goes off (one long blast), you may not row until the “all clear” is given (3 five-second blasts). If you are on the water, return as quickly as possible to Sandy Run docks. See the Sandy Run Park rules for complete information on the Lightning Prediction System and procedures.

High Wind Recommendations

The Occoquan Reservoir is relatively sheltered, but it is not uncommon for high winds to sweep the waters. Rowers should know their limitations when dealing with windy conditions and make an informed judgment call on whether to row.

• Avoid straightaways (the race course, the straight between Ryons Dam and Fountainhead) in windy conditions. The longer the straight, the higher the waves.

• If wind conditions are marginal, consider rowing in more protected areas such as the cove (Sandy Run itself) or in the lee of the shore close to Sandy Run.

Water Levels

Low Water Level

The Northern Virginia region has been known to go through periods of low precipitation or drought from time to time. During these times, the  Occoquan’s water levels can lower anywhere from 1-6 feet, to several dozen feet.  Use the following tips to stay safe during times of low water:

• Watch for Changing Shorelines: The shorelines of the river will  be changing during these times. Don’t assume the normal distance from the shore is a safe distance. Stay alert and monitor the shoreline. Make adjustments when necessary.

• Watch for Sunken/Submerged Debris: As the water lowers, submerged debris (fallen trees, logs, garbage, etc) that was once safely below water level will appear on the surface. Stay alert and keep watch for obstacles such as this. 

• Maintain the Traffic Pattern: The river will most likely be narrower, but rowers must adhere to the traffic pattern at all times to ensure safe navigation. 

High Water Levels

After a heavy rain or long, wet period of precipitation, the waters of the Occoquan will rise quickly and significantly. During these times, use the following tips to stay safe:

• Watch for Increased Debris: When water levels rise, loose debris  (sticks, logs, trees, garbage, etc.) is lifted and released from the shoreline. This debris usually finds its way to the middle of the river and begins to float down river towards the dam. After periods of rain, stay alert for any large debris that could damage or capsize your shell.