SUMMARY: The Weather Authority reports calm winds this evening as seen from the Golden Nugget Tower camera. Satellite and radar imagery indicates cloud build-up in the area, though the movement might not be apparent. Northerly winds will continue tonight, leading to mostly overcast skies over the Mississippi Gulf Coast and parts of Southern Louisiana for the holiday. Rainfall is not certain despite cloud coverage. Temperature-wise, coastal areas are in the lower 50s, while inland sees low to mid-40s. Due to lower dew points and winds, overnight lows won't drop as much. A high-pressure system means continued north-northeast winds and slightly lower overnight temperatures than previously expected. Some models predict spotty showers or bands of rain for Thursday. The forecast includes a modest 20% chance of rain for the holiday to prevent disrupting plans.

Wednesday November 22nd, 2023: Dewpoints are one of reasons the Mississippi Gulf Coast will be chilly tonight. Overnight lows will be a good bit cooler than Tuesday night. Dewpoints dropped into the upper 30s to lower 40s for most of the area. Another aspect of tonights cooler temperatures are the winds. Winds on the Gulf Coast look like they'll collapse. In simple terms, for all you at home, that will help temperatures drop quickly this evening. Though we will still be cooler than Tuesday night by a decent margin,  overnight lows still will not quite reach the potential they could have; if conditions were more straightforward. A large reason for that is a large amount of high clouds streaming in overnight. Those high clouds jack up our traditional radiational cooling setup.

As always: A cloudy day is no match for a sunny disposition. Be nice to each other.

– Meteorologist Trey Tonnessen –

Source