We continue to keep an eye on a plume of tropical moisture streaming over the center of the country. This is courtesy of two weather systems: a large area of high pressure off the East Coast and a trough over the Mississippi Valley. Although the set up has been an excellent one for rain showers today, the trigger needed to initiate activity was lacking. Through the evening, we’ll be watching an upper level disturbance that will cause isolated showers generally well southwest of Syracuse. There will be more heavy downpours in any storm that forms.
Thereafter, we will finally start to see some subtle changes in the pattern later this weekend into early next week. The stubborn and stalled trough, or low pressure in the middle and upper atmosphere, is forecast by most computer models to move east and over the Northeast in the Sunday-Monday time frame. This will result in slightly “cooler” temperatures as well as a somewhat greater threat for more widespread showers and thunderstorms.
Once the trough of low pressure moves through later Monday we will lose our tropical feed of moisture but it will still feel a bit humid at least through the middle of next week. In addition, our temperatures will take a run at 90 degrees again Tuesday and especially Wednesday.
It still pretty far out in time, but there are signs that the humidity may ease a bit at the end of the upcoming weekend.