Tuesday Afternoon, September 23, 2014
Chief Meteorologist Jason Simpson
Staying Dry for a While
Temperatures dropped as low as 44ºF in Winchester and 45ºF in Leighton this morning; no long-standing record lows fell, but it was the coolest reading for September 23rd at several reporting stations that have been around for less than a decade. (We typically don’t call those “record lows” because of the small sample of data!)
It stays nice this evening and tonight; temperatures drop through the 60s after sunset down to the lower and middle 50s by Wednesday morning. Most communities stay above 50 tonight, but a few of the normal cold spots could briefly dip into the 40s again. The dry weather pattern this week means pleasantly cool mornings and warm, dry afternoons. That changes this weekend with an increase in humidity and rain chances.
Warming Up Again: Fall brings a lot of temperature change, but that does not always mean rain and thunderstorms! Expect a gradual warm-up this week: highs in the mid/upper-80s again by Friday and Saturday afternoons. Overnight lows climb back into the lower 60s by the weekend as higher humidity creeps into the Valley.
There are no signs of record-setting warmth, but we do expect temperatures to run a little above normal from Thursday through the middle of next week with one major exception: Monday.
Weekend Outlook: This warm-up does not mean blistering heat for high school and college football games, festivals, and everything else outdoors from Friday through the weekend. The sun sets between 6:35 and 6:40 PM on Friday, Saturday, and Sunday, and that means temperatures cool a little faster than they did a few weeks ago.
There is no significant chance of rain through Saturday night; however, some isolated showers are possible as early as midday Sunday. More widespread rain is in the cards for Central and South Alabama on Sunday evening, but there is little confidence that the heavier rain gets to the Tennessee Valley before Sunday night.
Rainy Start to the Week? A weak area of low pressure developing over the northern Gulf this weekend spreads warm, humid air and some clouds north on Saturday and Sunday, but rain does not become likely until Monday. Even then, there are questions about how much rain and how long it will last!
Current trends suggest a prolonged period of “scattered” showers starting Sunday night lasting through most of the day Monday. Over-all rainfall totals don’t look that impressive, but a few spots could pick up at least a quarter to a half-inch of rain by the time the rain moves out on Tuesday.
After the rain and clouds clear out, it warms up quickly through the middle of the week: back to the mid/upper-80s by Wednesday and Thursday.
Another, more substantial system moves this way late next week into the weekend. That should raise rain chances in the longer-term and bring a more prolonged cool down after October 7th.
Farm and Garden Forecast: WHNT News 19’s Farm & Garden Forecast is updated daily with information specifically geared toward farmers and gardeners: Valleywx.com!
TONIGHT: Another nice night! Low: 54. Wind: Light NE.
WEDNESDAY: Pleasantly warm in the afternoon. High: 85. Wind: E 5-10.
WEDNESDAY NIGHT: Fair and pleasant. Low: 57. Wind: E 6-12.
THURSDAY: Fair and pleasant. High: 85. Wind: E 6-12.
FRIDAY: A few passing clouds in the afternoon. Becoming cloudy at times by evening. High: 86. Wind: E 6-12.
SATURDAY: Partly sunny, warm and dry. High: 86. Wind: ESE 6-12.
SUNDAY: Cloudy and wet at times. Scattered showers possible mainly in the evening. High: 82. Wind: ENE 5-10. Rain: 20%.
MONDAY: Mostly cloudy. Showers possible. High: 77. Wind: E 5-10. Rain: 50%.
TUESDAY: Rain ending. Partly sunny & a little warmer. High: 82. Wind: SE 5-10. Rain: 30%.