Brian's exclusive forecast for Annapolis: Morning cloudiness giving way to a mostly sunny and breezy afternoon. Much cooler and less humid with a high in the upper 70s. Northwest winds 10 to 20 mph at times. Clear and pleasant overnight with a low in the low to mid 50s. Light winds becoming near calm. Sunny on Saturday with a high in the lower 70s. The outlook for Sunday calls for sunshine with a low around 50 and a high near 75.
A strong cold front impacted the Chesapeake Bay region yesterday afternoon and evening. Widespread thunderstorms developed around the bay region when the front collided with hot and humid air that had settled over the area during the past few days. Some storms were strong with heavy rain, localized flooding, gusty winds, and frequent lightning. With the front now clearing the area, fresh air from the northwest is pushing across the bay along with lower humidity. At 3 p.m., current readings are in the upper 70s with dew points only in the upper 40s to lower 50s. Winds are generally 10 to 20 m.p.h. out of the northwest, with some gusts of 20 to 30 m.p.h. High pressure will continue to build over the area this evening, and with diminishing winds we can expect the mercury to drop back into the lower to middle 50s by sunrise on Saturday. High pressure will ensure a sunny and pleasant weekend on Saturday and Sunday with lows around 50 and highs in the 70s.
On the Maryland portion of Chesapeake Bay, a Small Craft Advisory is in effect from through Saturday morning. Winds today will come out of the north/northwest at 10 to 20 knots with higher gusts and waves of 1 to 3 feet. On Saturday, winds will come out of the north/northwest at 10 to 20 knots with waves of 1 to 3 feet. Marine weather information is provided only as a guide. Boaters should always stay tuned to the latest forecasts and advisories from the National Weather Service.
The average high temperature for September 13 is 79 degrees and the average low is 59. The records at Baltimore on this date are 97 degrees in 1952 and 42 degrees in 1958. Weather data courtesy of the National Weather Service. For more weather updates, please visit my Chesapeake Bay Weather page on Facebook, and if you're heading to Ocean City feel free to check out my Ocean City MD Weather page on Facebook. You can also follow me on Twitter @chesbayweather.