Wednesday Morning, July 26, 2017
Chief Meteorologist Jason Simpson/Meteorologist Ben Smith

A midsummer cold front brings rain, storms and a breather from the heat

There is no rain at 2am.  Expect a steamy, stuffy environment: lows in the low-70s with some patchy dense fog by sunrise.

We see a very slim chance of substantial rainfall this afternoon; isolated storms may ‘pop’ here and there, but few if any of us get rainfall. Here’s the catch: isolated storms can drop a lot of rain over small geographic areas! Temperatures soar to the lower and middle 90s in the afternoon; the ‘feels like’ temp spikes to the 100ºF to 105ºF range between 11am and 6pm. A midsummer cold front (a legitimate one) moves into the region Friday upping the ante for scattered storms and and bringing some ‘cooler’ air for the weekend.

Still hot for Thursday: It stays very hot ahead of the coming cold front; expect highs in the lower/middle 90s on Thursday. The ‘feels like’ temp spikes as high as 105ºF in the hottest part of the day (lunch to early evening). Some isolated storms are possible, but rain is not ‘likely’ on Thursday. Just like today, Thursday low chance of rain speaks more to the coverage than the amount; if it rains on you, it will rain hard for as much as 30-60 minutes.  There is a slim chance of a few strong storms Thursday: gusty winds along with very heavy rain and intense lightning in the biggest storms.

About that cold front: This midsummer cold front edges into the Nashville area by Friday morning and heads into North and Central Alabama in the afternoon and evening.

Showers and storms are likely, but rainfall looks very uneven. Some spots get more than one inch of rain while a few communities get next to nothing. That’s why the chance of rain is only around 50 percent: considerable uncertainty about who gets what keeps the rain chance well below 100 percent for Friday, Friday night and early Saturday morning.

Working for the weekend: The last weekend of summer vacation for Huntsville City School students looks decent! The cold front passes south of the Valley by Saturday afternoon, and temperatures drop to the mid-80s for daytime highs with lower humidity and a partly sunny sky.

We’ll start Sunday morning in the 60s (breathable air for a change) and only warm into the mid/upper 80s in the afternoon. An upper-air trough over the region means occasional clouds and a low-end chance of some scattered showers both days; however, rain is far from likely over the weekend.

Tennessee Valley Forecast:

TODAY: Hot and humid with an isolated shower or storm possible in the afternoon. High: 93. Wind: NW 5-10. Rain: 20%.

TONIGHT: Partly cloudy, warm, and muggy. Low: 74. Wind: W 3-9.

THURSDAY: Hot and humid with a few spotty showers and thunderstorms possible. High: 92. Wind: W 5-10. Rain: 30%.

FRIDAY: Partly to mostly cloudy. Scattered storms become more likely in the afternoon and evening.  High: 87. Wind: WSW 7-12. Rain: 50%.

SATURDAY: Areas of rain possible, mainly in the morning. Partly sunny, a bit cooler, and occasionally breezy in the afternoon. High: 85. Wind: NNW 10-20. Rain: 20%.

SUNDAY: Cooler start with morning temperatures in the 60s. Partly cloudy, warm, and breezy at times during the day. High: 87. Wind: N 5-15. Rain: 10%.

MONDAY: Hot and a little more humid with partly cloudy skies. High: 88. Wind: NE 5-10. Rain: 10%.

TUESDAY: Hot and humid. A few stray showers possible in the afternoon and early evening. High: 89. Wind: NE 5-10. Rain: 20%.

WEDNESDAY: Another hot and humid day with party cloudy skies and a few afternoon storms. High: 89. Wind: ESE 5-10. Rain: 30%.

THURSDAY: Partly cloudy and hot. Afternoon showers and storms a little more likely. High: 86. Wind: S 5-10. Rain: 40%.