5/8 – Trey Tonnessen’s “Staying Ready” Wednesday Night Forecast

Meteorologist Trey Tonnessen

The focus of the weather community here on the Mississippi Gulf Coast has been locked on the humid feeling throughout Wednesday. Luckily, after we get past the level two of five slight severe risk Thursday night into Friday morning, there is moderate relief.

Saturday and most of Sunday, zonal flow will dominate the upper level pattern. Northerly surface winds during this time will help to suppress humidity and keep instability down, which will reduce rain chances. So, minimal rain is expected Saturday into Sunday morning. Temperatures will be fairly nice over the weekend with highs in the low to mid 80s Saturday and upper 70s to low 80s Sunday with lows in the low 60s. An upper level impulse moves through the area Sunday night into Monday morning with multiple small upper level impulses in close succession through the early part of next week. For the impulse moving into the area Sunday into Monday, southerly surface winds will help advect moisture and instability ahead of the system. The bulk of the best moisture and forcing looks to be for our northernmost areas, but that could definitely shift as things develop over the next few days. This is where there is some model uncertainty over the location of the highest rainfall/strong weather. This will hopefully become more clear in the coming days.

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

-Meteorologist Trey Tonnessen