Alabama 811 | Know What's Below.

Warm, Moist Air Stays In Place

| September 9, 2014 @ 6:25 am

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EYES TO THE NORTH: While Alabama will remain in a very warm, moist airmass, we are watching some cold air dipping into the far northern U.S. this morning. Cut Bank, Montana has dropped to 34 degrees with a northwest winds of 10 mph, putting the wind chill index in the upper 20s. Some cities over the northern U.S. won’t get out of the 40s by tomorrow as the coldest air so far this young meteorological fall arrives.

Ahead of the cold front, severe storms are possible today and tomorrow from the Great Plains to the Great Lakes.

AROUND HERE: Not much change in the weather today and tomorrow. Highs around 90 degrees; widely spaced afternoon and evening showers and storms. The chance of any one spot getting a shower today and tomorrow will be about one in five.

THURSDAY/FRIDAY: The chance of showers and storms will increase as the front approaches Alabama from the north. The new set of global models (GFS and ECMWF) keep a fairly strong upper ridge across the southern states, meaning the front will have some work to do before getting through here, and it will be a slower process than earlier thought. So, showers and storms will remain possible through Friday. No continuous rain, but a shower or storm will be possible at just about any time Friday and Friday night, meaning there could be some rain around for some of the high school football games around here.

WEEKEND FORECAST CHANGES: Unfortunately we will need to hold off the arrival of the cooler and drier air for parts of Alabama, and the weekend weather will all depend on where you live. If you are up in the northwest corner of the state around Muscle Shoals, the weekend looks very nice with lower humidity and cooler nights. However, the global models hang the front up around I-59, meaning for Tuscaloosa, Birmingham, Gadsden, and points south, we will have to introduce the chance of showers both Saturday and Sunday. Again, the rain won’t be continuous, but showers are a distinct possibility both days along and south of I-59. Highs will drop into the low to mid 80s, but early morning lows will be in the upper 60s; we will have to wait until early next week to enjoy the really cooler mornings.

NEXT WEEK: The drier air finally arrives as the stubborn upper ridge is beat down by a long wave upper trough over the eastern third of the nation. The week is looking mostly dry and pleasant for a decent part of the state. See the Weather Xtreme video for maps, graphics, and more details.

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TROPICS: The tropical wave southwest of the Cape Verde Islands, in the far eastern Atlantic, has chance of some slow development in coming days, but if anything forms it will recurve into the open Atlantic well before getting close to the U.S. mainland. The rest of the Atlantic basin is quiet.

GULF COAST WEATHER: About 6 to 8 hours of sunshine each day along the coast from Panama City west to Gulf Shores through the weekend with the daily risk of scattered thunderstorms. Highs will remain mostly in the upper 80s; the sea water temperature early this morning at the Dauphin Island Sea Lab is 85 degrees.

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I will be doing a program for the kids at the Cahaba Valley Learning Center this morning in Shelby County… look for the next Weather Xtreme video here by 4:00 this afternoon. Enjoy the day!

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Category: Alabama's Weather

About the Author ()

James Spann is one of the most recognized and trusted television meteorologists in the industry. He holds the AMS CCM designation and television seals from the AMS and NWA. He is a past winner of the Broadcast Meteorologist of the Year from both professional organizations.

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