6/20 – Rob’s 1st Day of Summer “Tropical Effects” Forecast

Light to moderate rainfall has been in the area since prior to sunrise and will continue through the duration of this event!

Tropical Cyclone 3 in the central Gulf of Mexico will impact the Mississippi Gulf Coast with Rainfall, coastal flooding, windy conditions, waterspout/tornadic activity over the next few days.

This system is just the onset of this wet pattern, and we’re still looking for rainfall tallies in the area of 4 to 8 inches
area wide with a few pockets of 10+ inches possible in mainly convective bursts through Thursday. SPC has set a portion of the
area in a moderate risk of flooding rainfall potential today and again Wednesday into Thursday morning.

Obviously windy conditions will exist especially at onset and during times of showers/t-storms for the next few days. Wind speeds will be stronger at coastal locations but will still be gusty inland as well. Strongest speeds should be 20 to 30 mph at the coast with higher gusts during showers/t-storms. Inland speeds should be on the order of around 15 mph with higher gusts during sh/ts.

Waterspout activity will be a definite and with the onshore component of storm motion, some of these may move inland. There is also the potential of tropical tornadic activity with the strongest convective bursts. The Storm Prediction Center (SPC) has outlooked a large portion of the area with MARGINAL RISK today, SLIGHT RISK Wednesday and MARGINAL RISK again on Thursday for this potential.