Much of the Baltimore area was under a flood warning Saturday evening as another line of storms crossed the area, less than a week after a deluge killed one person and caused widespread damage from Ellicott City to Baltimore. But threats of flash flooding Saturday did not come to pass as storms reached the Baltimore region late Saturday afternoon and then weakened.
Storms were moving slowly, and rain was forecast to continue through the night.
About half an inch of rain fell Saturday in the Baltimore area, and Ellicott City saw similar rainfall totals, said National Weather Service meteorologist Kyle Pallozzi. Up to 2 inches of rain fell in western Howard County, Pallozzi said.
“Most of Maryland will continue to see showers through the night,” and some could be intense, said Luis Rosa, another meteorologist with the National Weather Service’s Baltimore/Washington forecast office.
A flash flood watch remains in effect through 6 a.m. Sunday, and Rosa said meteorologists do not expect to lift it early.
Earlier Saturday, meteorologists predicted a widespread 2-3 inches of rain through Sunday morning, with “potentially much higher” amounts in some areas, and warned that the saturated ground would not absorb more moisture. The flood warning included Ellicott City. Howard County officials warned residents to leave the downtown area that suffered major flooding last Sunday and canceled a planned opportunity for residents and business owners to visit the damaged area.
“Rapid rises of creeks and streams will be likely due to repeated rounds of torrential rainfall,” the alert warned. “Low lying areas will be particularly susceptible. Runoff … will accumulate on roads making them impassible. Flash flooding may develop quickly.”
All of Maryland is included in an area in which the weather service warns of “excessive rainfall” potential through Sunday morning.
Meteorologists advised motorists not to attempt to drive through flooded roads. Flooding causes more deaths than any other weather hazard, and nearly half of those deaths involve vehicles, according to the weather service.
The new wave of storms came less than a week after flooding devastated Ellicott City and other areas of the Baltimore region. One person died in Ellicott City when he was swept away in floodwaters Sunday.
More than 8 inches of rain fell during May at Baltimore-Washington International Thurgood Marshall Airport, the region’s point of record. It was the region’s wettest month in nearly three years, and its third-wettest May on record.
Periods of rain are forecast to continue through Sunday, but then a slight reprieve is in the forecast. Some rain chances are forecast to linger into the week, but remain around 30 percent, with otherwise partly sunny skies and highs in the 70s.