June 26, 2009 Leave a comment
Humidity values begin to increases today, as moisture returns from the gulf. With higher humidity, our heat index values have reached the triple digits. A few showers have formed along a boundary that is lifting northward through the state. This boundary is separating the really moist air to the south from drier air to the north. Other than a few showers and thunderstorms, our rainfall chances will diminish after sunset. Skies will clear out tonight, as low approach the lower 70s. On Saturday, we’ll have a similar setup to today, with afternoon storms possible. Heat index values will approach the 105.
A cold front will move in Sunday night or early on Monday; this will bring a chance of showers and thunderstorms, but the rainfall chance will be lower due to the timing of the front. The only real difference will be the overnight lows and humidity. You’ll really notice the lower humidity values on Tuesday and Wednesday. Lows will approach the upper 60s. It’s rare to get a cold front into Alabama this time of the year, but all computer models indicate that it will make it all the way through the state. Temperatures will top out in the lower 90s, with lots of sun Tuesday through Thursday.
All eyes are on the tropics now, as we have a disturbance developing in the Caribbean. The water temperatures are very warm, and upper-air winds are favorable for development. This system will move into the northern Yucatan Peninsula tomorrow morning and move into the southern Gulf of Mexico on Sunday. All of our tropical models develop it into a tropical storm, so we’ll be keeping a close eye to our south over the weekend, so be sure to stay with us for the latest. I’m filling in for Wes today at 5, 6 and 10 on WVUA-TV.
Have a great day!
WVUA-TV’s Weekend Weather Anchor