Rain Maker Moving Out…More Storms On The Way

The Sunday-Monday rainmaker is pulling out of the area.

The surface map above shows the situation late Monday morning with the first of two cold fronts on the western shore of the Bay and a secondary front in the mountains. Note the strong winds on some of the individual station reports.

The early afternoon satellite image shows the drier air moving in behind the front which by this time has moved to the Atlantic coast.

While the rain was significant it does not appear that any rainfall records have been broken. At BWI-Marshall Airport, the record rainfall on Sunday is 1.74 inch and the record for Monday is 1.83 inch. The preliminary rain total for this storm is .88″ over the two days.

The Doppler Radar Rainfall Estimate from the Dover AFB radar shows that 1 to 1.5 inches of rain (green shades) is estimated to have fallen over the northern DELMARVA Peninsula and parts of Harford, Baltimore and Carroll counties north of Baltimore City. The dark blue shading indicates rain total estimates in the .5 inch to 1 inch range. These estimates pretty well line up with preliminary rain gauge reports.

A strong, southerly flow of air ran ahead of the initial cold front. Gusty winds and unseasonably mild temperatures were widespread. The preliminary Monday high temperature report from BWI-Marshall is 66 degrees. A high of 59 degrees was recorded at the Science Center at the Inner Harbor. The average high temperature this time of year is 41 degrees.

As mentioned in previous entries, the weather pattern is quite active.

The Monday morning western satellite image shows that several storms are lined up in the north Pacific, taking aim on the U.S. West Coast. The forecast maps below show a cold front approaching the Mid Atlantic region on Thursday and a stronger system along the East Coast south of Maryland on Saturday.

The Thursday cold front is expected to be followed by an invasion of cold air, setting the stage for a possibility of snow in the Mid Atlantic region late Friday or Saturday. As with all longer range forecasts, a lot of fine tuning will be necessary and an accurate forecast regarding location, timing, extent and type of precipitation is a few days away.

John Collins

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2 Responses

  1. We live on the water, off of the Chesapeake, as do many others in the area. It is very frustrating, when so much attention is paid to “flood warnings,” without mention of possible surge and higher tides to those who have waterfront houses and property. Plain old heavy rain doesn’t flood us here, as we don’t have water in small streams, drains, etc. rising and possibly flooding. However, strong winds from the south and higher than normal tides definitely affect us! The water here was higher than normal way before high tide yesterday, causing us to have water half way up our yard, and damage to one of our boats. If there had been a mention of possible surge or unusual high tide, we (as well as other home and business owners) could have been better prepared. Most of the “flooding”photos shown last night weren’t a result of heavy rain, but high winds and tides. With a state that includes so much waterfront, I expect more attention to be paid to how the weather may affect us. It’s a very disappointing situation.

  2. Point taken. I did mention the tidal flood threat on the Sunday weathercasts on TV but not in the blog entry. Something to remember when the situation comes up again.

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