It was some dry air in upper levels of the atmosphere (the surface was appropriately muggy and full of moisture) that put a cap on shower activity on Thursday.
The dry air the result of our proximity to a ridge of high pressure to the west, but that ridge starts to lose it’s influence on Friday.
Rain chances will be back in the scattered range for the afternoon and evening, after another hot and muggy start to the day.
As the ridge continues to get pushed to the west it will open up the door for an inverted trough to slide on it, which will provide even more moisture to our already soaked atmosphere.
Expected widespread showers this holiday weekend, with rounds of rainfall arriving Saturday afternoon and continuing through the weekend.
While it won’t be continuous rain from sun up to sun down it may be difficult to get outdoor activities accomplished, and could but a damper on plans for the return of Ragin Cajun football.
There’s not an expectation of flooding this weekend and it will probably feel like we get more rain then we actually measure.