When a cold air mass and a warm air mass collide, where neither one is strong enough to move the other out of the way, they just sit there. Clouds tend to form along the battleground producing areas of precipitation. That is called a stationary front.
Apparently the warm air mass won the battle yesterday as we reached 94 degrees just west of Salisbury, at my weather station. It was the warmest day of 2019! It was also a little humid, to boot.
In late spring, summer, and early fall the precipitation often ends up producing thunderstorms on/off until something nudges the systems along. It is expected that this scenario will play out over the net 3 or 4 days.
We are likely to see scattered thunderstorms, with some producing copious amounts of rainfall, this week. Temperatures will be warm and some of the storms may produce strong winds. Other than that we can expect to enjoy summer like conditions.
Stationary fronts are not truly stationary. They tend to wobble back and forth over a few miles as the cold air to the north battles the warm air from the south. Consequently, temperatures can vary along the stationary front from the low 80’s to the low 90’s from day to day.
Expect thunderstorms at some point today with highs in the upper 80’s.