We have a very wet and unstable weather pattern setting up for much of this week. Thunderstorms, some severe, are possible most days of the upcoming week.
Right now (Monday early evening), a severe line of thunderstorms is affecting Washington DC. (Possibly adding more water to the “swamp” there.)
In all seriousness, the storms approaching DC are extremely fast moving (excess of 60 mph), appear as a ‘bow echo’ but almost take the form of something called a derecho. I don’t usually focus on weather outside the PHL area, but this radar image is impressive, with likely tornados. We may have similar weather late tomorrow afternoon.
So far, the forecast is going well. The showers and thunderstorms have moved east and there should be a significant brightening of skies mid to late morning. Still not clear how much sunshine we’ll get, but the cloud cover should thin considerably.
Expect dry conditions for much of today. High temperature 77 with increasingly humid conditions.
A wave of low pressure develops just south of PHL late this afternoon and this evening. Considerable instability will result in showers and thunderstorms, some heavy. Expect the showers and thunderstorms to move in from the west between 5 and 7 PM and continue through the evening.
