Yesterday’s extreme wind conditions caused what is known as a river blowout.
Water was blown out of the river bed in a domino effect as the Chesapeake Bay and ultimately the ocean lost volume by wind-generated tidal forces.
The best answer we found about why this happens was from Fossilguy.com, who stated, “Blowout tides occur in areas (generally nearshore shallows, marshes and tributaries) where the shore is very flat so the water remains shallow for some distance from the low tide mark. If you get a strong offshore wind at the same time as you have a low tide, then the wind will push the water out to sea so that you have what seems to be an extra-low tide, or a “Blowout” tide (because the wind blows out the water.)”
Today we were literally able to walk on the river bed.
Further downriver in Prince William County the river actually disappeared.
Here are some photos today from the‘ Fairfax County area of postal Alexandria South near George Washington’s Mount Vernon.