Brian's exclusive forecast for Annapolis: Mostly sunny, cooler, and less humid on Monday with a high in the mid 70s. North/northeast winds around 10 mph. Clear on Monday night with a low in the mid 60s. On Tuesday, look for a mixture of clouds and sun. It will be much warmer with a high in the mid to upper 80s. The outlook for Wednesday calls for hot and humid conditions with a high in the upper 80s to lower 90s.
A cold front moved through the area last night and ushered in cooler and less humid air. High pressure will provide the area with a sunny and pleasant Monday with highs only in the mid 70s. However, the center of high pressure will move offshore and a southerly flow around the high will result in a dramatic increase in temperatures and humidity by the middle of the week with highs increasing to the mid to upper 80s on Tuesday and the upper 80s to lower 90s by Wednesday. Although skies will be mostly sunny both days, there is a chance of an afternoon thunderstorm. The most significant weather feature will be the summer-like heat on Wednesday as temperatures may reach the low 90s at some locations. However, there is little chance of breaking any records. The record high temperature for September 10 is 100 degrees and the record high for September 11 is 100 degrees, both set at Baltimore in 1983. The heat-wave will be short-lived. Later in the week, a strong cold front will push across the Chesapeake and open the gates for significantly cooler air by Friday with highs only in the 70s and overnight lows in the 50s.
On the Maryland portion of Chesapeake Bay, a Small Craft Advisory is in effect through Monday morning for winds gusting to 20 knots from the east/northeast and for waves of 1 to 3 feet. Winds will shift around to the south on Tuesday and Wednesday, but speeds will be lighter and wave heights will subside to around one foot. 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 9 is 81 degrees and the average low is 60. The records at Baltimore on this date are 94 degrees in 1985 and 44 degrees in 1986. 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.