The weekend rainfall produced some much needed precipitation for the area.
1.48″ … TV-Hill
1.38″ … Inner Harbor
1.31″ … BWI-Marshall (3.41″ for September)
The rain totals for other Maryland locations are supplied by the National Weather Service.
John Collins
PUBLIC INFORMATION STATEMENT
SPOTTER REPORTS
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1250 PM EDT SUN SEP 27 2009
THE FOLLOWING ARE UNOFFICIAL OBSERVATIONS TAKEN DURING [...]
John Collins
The Mid Atlantic Region has been a little short of rain in the past few weeks (1.06 inches below average in September at BWI) but generous rain fall this past summer has kept everything green.
Down under, spring has begun and eastern Australia is in the grip of a severe drought. The sky in Sydney has [...]
Summer is winding down and the numbers show the direction we are headed.
John Collins
Today is the anniversary of Hurricane Floyd’s passing along the Mid Atlantic coast.
The National Weather Service chart above shows the track of the storm. The deep red and orange shaded part of the track indicate that portion of the path at which the storm was hurricane strength, deep red being the strongest. Highest sustained winds [...]
The very wet low pressure system that was off the coast Friday spent Saturday over southeast Pennsylvania. This inland position took the bulk of the rain north of Maryland but because of the low’s proximity to the area, cloud cover was considerable on Saturday with periodic drizzle and temperatures stuck in the 60s. There were [...]
The “Friday Soaker” that John analyzed below produced some impressive rainfall totals from southern Pennsylvania to southern Maryland. The map of selected reports shown here matches well with the radar estimated rainfall. A solid 2-5″ fell in a band from Ocean City northwest to York and Lancaster. Cecil County was hit hard with over 5.5″ [...]
The storm off the Mid Atlantic coast finally pushed close enough to the coast to generate some significant rain across the area.
The image above is the radar rainfall estimate from the Sterling, VA radar.
The late afternoon satellite image shows the storm spinning slowly toward New England. The image below shows the late afternoon surface conditions.
As [...]
Well, the storm off the Mid Atlantic coast is still stalled.
Most of the significant rain activity is north of the storm center. A high pressure ridge over the northeast U.S. has more or less prevented the storm and its’ rain from moving very much so rainfall over the Baltimore-Washington area has been spotty and the [...]
Wednesday weather remains unsettled over the Mid Atlantic states.
I have annotated a few features on the midday satellite image. An upper level low pressure area (yellow “L”) is centered over the upper Ohio River Valley. It is an extension of a much larger low over northeastern Canada. At the surface, a low (red “L”) is [...]
