Monday Morning, August 19, 2019

Heat not going anywhere anytime soon, and rain is slow to return until late in the week

For those looking for relief to the heat anytime soon, there isn’t really much good news.

Upper level high across southern US

Upper level ridging (aka high pressure) will strengthen at the start of next week across the southern U.S. and that will keep us quite warm across north Alabama and southern Tennessee. This ridge might break down a bit by the latter part of the week, but we don’t see any big relief from the August heat anytime soon.

Humidity increases into next week:  The only silver lining to the very hot weather we have had so far this weekend is that, while it has been a bit humid, the dewpoints haven’t been quite as high as they were last week. That changes as we head into the work week as southerly flow develops at the surface and brings gulf moisture into the Tennessee Valley.

Dewpoints rise as we start the week

So, even though temperatures drop  by a couple of degrees as we head into the first half of the week, the heat index will actually be a few degrees higher than it was this weekend. With that in mind, our advice is to stay in the A/C as much as you can, stay in the shade if you’re outdoors, and keep some nice, cool water around to sip on.

Scattered storms return to the forecast: As we bring back the more oppressive humidity, we’ll also bring back the chance for some scattered showers and storms.

Monday Futurecast

Tuesday Futurecast

We don’t have any big washouts in the forecast, but rather our more common summer pop up showers and storms. Some spots may get a good soaking over the next few days, while others may see little to no rain. If you’ve got outdoor plans, it’s a good idea to be prepared to be flexible and know that a rain out isn’t out of the question.


Tennessee Valley Forecast:

TODAY: Partly cloudy and hot with a few afternoon storms. Highs in the low to mid 90s. Heat index around 105°. Wind: E 3-5.

TONIGHT: Partly cloudy and muggy. Lows in the lower to middle 70s. Winds: Light.

TUESDAY: Hot and humid, with a few afternoon thunderstorms possible. Highs in the low to mid 90s. Heat index around 105°. Wind: SE 3-5.

WEDNESDAY: Partly cloudy with isolated afternoon thunderstorms. Highs in the low to mid 90s. Heat index around 105°. Wind: SW 3-5.

THURSDAY: Partly to mostly cloudy with areas of rain and storms possible. Highs in the upper 80s to lower 90s. Wind: N 3-5.

FRIDAY: Hot and humid.  Some scattered showers and thunderstorms expected. Highs in the upper 80s to lower 90s.

SATURDAY: Partly cloudy with isolated afternoon thunderstorms. Highs in the upper 80s to lower 90s. wind: S 5-10.

SUNDAY: Partly to mostly cloudy with areas of rain and storms possible. Highs in the upper 80s to lower 90s. Wind: SW 5-10.

MONDAY: Partly cloudy with isolated afternoon thunderstorms. Highs in the upper 80s to lower 90s. wind: SW 5-10.

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