Forecast models have narrowed on a solution which tracks Tropical Storm Isaias from the Tidewater of Virginia northeastward to near the mouth of the Potomac River on Tuesday. If this track verifies, much of the Washington Region will receive rainfall amounts of two to four inches with some locations, especially along and east of interstate 95 potentially picking upwards of 4 to 6“.
Numerous thunderstorms are expected Monday afternoon through the overnight hours ahead of tropical storm Isaias. Rainfall totals from theses storms will easily drop an inch or two before the core of the tropical storm passes to our southeast on Tuesday. On Tuesday rainfall rates in excess of 1” per hour are likely leading to the threat of widespread flash flooding of area creeks and streams and low-lying urban areas. This amount of rain in under 12 hours will likely create flash flood emergencies and water rescues!
The Latest Spaghetti Models