6/12 – Trey Tonnessen’s “Staying Calm” Wednesday Evening Forecast

Meteorologist Trey Tonnessen

The disturbance over south Louisiana will shift offshore overnight, but it may take a good chunk of the daylight hours Thursday for dry air to get to the south of Interstate 10. Precipitable water values near 1.7-1.8 inches this afternoon will finally fall below 1.5 inches by late afternoon tomorrow, and range from 1.1 to 1.4 inches by Friday morning. Current convection should end with the loss of surface heating in the next 4 hours or so. The drying of the column will mean less areal coverage (probably 20 percent or less) Thursday afternoon, and further south, if any develops at all. Expect this to allow temperatures to be a couple degrees higher on Thursday, with lower to middle 90s for most of the area, although immediate coastal areas could be tempered slightly with a weak sea breeze by mid-afternoon.