PROJECT ALERT NOTICE (MD) Substantial rainfall in the Mid-Atlantic causes additional flooding in Maryland on June 3-4, 2018

Date: Mon, 04 Jun 2018 09:02:11 EDT

Summary: Renewed flooding is occurring in numerous location across Maryland this morning, caused by an additional two to four inches of rainfall on already-saturated soils over the weekend.

Numerous locations in central and western Maryland are experiencing varying degrees of flooding this morning following several inches of additional rainfall on saturated soils over the weekend. Flooding is occurring in watersheds that experienced excessive rainfall last week, as well as in many tributaries to the Potomac River in western Maryland, and along the mainstem of the Potomac River. Peak-flow annual-exceedance probabilities are likely in the range of 20 percent to 4 percent, with record peaks and no damage or destruction reported to any USGS monitoring installations.
Eleven crews totaling 22 staff are deployed today to collect water-quality samples and measure high streamflows.