Friday may offer a brief reprieve from ongoing August heat wave

In brief: In today’s post we discuss the potential for some scattered showers on Friday, which will then give way to an extended period of hot and sunny weather that will persist through next week. At least.

A surge of moisture?

Houston remains more or less locked into a pattern of hot and sunny weather for the foreseeable future with one exception. On Friday we may see a burst of tropical moisture move inland from the Gulf, and this could bring some coastal showers into the region, especially for areas south of Interstate 10. Would I guarantee rain? No, I certainly would not. But with a very hot and dry pattern upcoming, it does represent a decent shot of precipitation before high pressure really asserts control.

Atmospheric moisture levels will be about 120 percent of normal levels on Friday across Houston. (Weather Bell)

Thursday

Expect hot and sunny conditions, with high temperatures in the mid-90s in Houston, with higher temperatures possible for inland areas, and weather a few degrees cooler near the coast. There is perhaps a 10 percent possibility of some showers briefly popping up. We will again see windy conditions this afternoon, with gusts picking up to 20 or 25 mph from the south. Lows tonight will only drop to about 80 degrees.

Friday

This is the day when conditions may align for some shower activity. If so we will likely see some precipitation develop offshore around sunrise, and then move inland into coastal areas during the morning hours. The questions are: How widespread will the showers be, and how far will they penetrate inland? And I’m not sure. My sense is that a few areas will see on the order of 0.5 inch of rain, and most of us less. With a few more clouds, highs on Friday may be 1 to 3 degrees cooler than Thursday, which isn’t saying much.

Saturday and Sunday

This weekend is going to be hot, sunny, and humid. Rain chances are likely 10 percent or less. Expect highs in the mid- to upper 90s across the region, with only the coast remaining slightly cooler.

Next week

I honestly don’t expect much to change next week. If anything our daily highs will tick up a degree or two higher. This kind of relentless pattern is why I wrote this post about August a couple of weeks ago.

This map looks more interesting, in terms of activity, than it really is. (National Hurricane Center)

The Atlantic tropics

Did you know a tropical storm formed on Wednesday? Cristobal developed briefly in the middle of nowhere in the Atlantic, and then it promptly weakened. Not an issue. There are also a couple of waves in the “main development region” of the Central Atlantic Ocean, but honestly neither of them looks bound for the Gulf. If you want the full details on all of this, be sure and check our sister site The Eyewall. But the bottom line for Texas is that things look good for at least the next 10 days, if not longer.

Putting the Heat in H-town, and help us come up with t-shirt ideas

In brief: In today’s post we talk about the ongoing heat wave in Houston, which we expect to build this weekend and possibly intensify further during the first half of next week. Also, we ask for some help designing t-shirts for our annual fundraiser.

Would it be Houston in August without relative humidity near 100 percent? (Weather Bell)

Annual fundraiser

Longtime readers will know that we hold our annual fundraiser in November. As part of that we sell merchandise and offer a couple of different t-shirt designs. They vary from year to year, playing off of our no-hype slogan, the region’s humidity, our fair city’s fertile mosquito population, or a recent hurricane. Anyway, we’d love to get readers involved this year. In the comments below, on social media, or via email, please send us your ideas for t-shirts. If they involve some graphic design elements, that’s no problem, since we’re going to get some help from Reliant on that. Should we choose your idea, I’ll be happy to send you a t-shirt of your design and size this winter. Thank you!

Wednesday and Thursday

These will be hot and sunny days, with high pressure more or less in place. Temperatures in central Houston will be in the mid- to upper 90s, with upper-90s likely for areas further inland, and highs a few degrees cooler closer to the coast. One difference from recent days is that afternoon winds will be a little more blow-y, perhaps gusting up to 20 or 25 mph from the south. As for rain chances, they are about 10 percent each day. Nights remain warm and sultry.

Friday

A similar day, in terms of temperatures to the previous two. However there does appear to be a bit of an increase in atmospheric moisture levels, which could lead to increased rain chances. We may, perhaps, see something like a 20 to 40 percent chance of showers. We’ll see.

Saturday and Sunday

The weekend looks hot and sunny, with most of the region likely to experience highs in the upper 90s. Rain chances fall back to 10 percent, or less. Emphasis on less. It will be good weather for the beach, the pool, or getting a sunburn if you’re not careful.

Next week

As high pressure continues to prevail, we are likely to see highs remain in the upper 90s. Temperatures could peak early next week. There may be some slight moderation in conditions toward the end of next week, or maybe not. August high pressure systems tend to be hard to break down over the southern United States.

Atlantic tropical outlook for Wednesday morning. (National Hurricane Center)

Atlantic tropics

We continue to see signs of activity ramping up in the central Atlantic, as evidenced by the 7-day forecast predictions from the National Hurricane Center. Most of the long-range guidance, however, keeps this pretty far removed from the Gulf. So we have no concerns for at least the next 10 days, and probably beyond.

Houston’s heat will now build through mid-August. Also, what’s going on with the tropics all of a sudden?

In brief: In today’s post we discuss building high pressure and its upward pressure on daily temperatures. Triple digits are likely for much of the region by the weekend. Also, we take a look at the Atlantic tropics, which are starting to come alive.

Here comes the heat

For some locations in Houston yesterday, the high temperature topped out in the 80s. With widespread showers during the daytime, temperatures even fell into the 70s during the afternoon or evening hours for some locations. It was all rather pleasant. Unfortunately, it also is going to be fleeting. Highs will climb back into at least the mid-90s today. And then, for at least the next week, we are going to generally see highs in the upper 90s to 100 degrees for all but areas near the coast. This comes courtesy of a ridge of high pressure which should peak over the weekend. This is a classic August high that will bring baking conditions outdoors. Steel thyselves.

For inland areas, triple digits are likely in the days ahead. (Weather Bell)

Tuesday

Highs today will be in the mid- to upper-90s for most locations. As high pressure has not fully taken control I do think we’ll see a few isolated to scattered showers this afternoon, but overall chances today are probably 20 percent, or less, compared to yesterday’s 60 percent or higher. Skies will otherwise be mostly sunny with light southerly winds. Low temperatures tonight will only fall to around 80 degrees for most locations.

Wednesday, Thursday, and Friday

Hot and sunny. Each day will have high temperatures in the vicinity of the upper 90s, with warm nights only dropping to around 80 degrees. For coastal areas you can expect highs a couple of degrees cooler, but nights a few degrees warmer as air temperatures are modified by the Gulf waters. Rain chances will be about 10 percent, daily.

Saturday and Sunday

Our daytime temperatures will take a step up this weekend, with fairly widespread chances to hit 100 degrees for inland areas of Houston. Locations a bit closer to the coast will probably stay just below the century mark. But bottom line, it’s going to be sunny, it’s going to be hot, and that’s just how things go in these parts during mid-August. This really is the dead of summer.

Very hot conditions will continue next week. (Pivotal Weather)

Next week

Not much appears to change next week, at least for the first few days. Is August over yet?

Atlantic tropics

After a very quiet period we are starting to see the tropics wake up. The good news is that there are no immediate threats to Texas, or the Gulf. However as we get to this time of the summer, the deep tropics tend to see an uptick in activity as tropical waves roll off the West Coast of Africa. And that’s what we’re seeing. The most prominent of these is an area of low pressure in the central Atlantic Ocean.

Atlantic tropical outlook as of Tuesday morning. (National Hurricane Center)

Various models have been suggesting this system will develop for awhile, and track toward the Caribbean Sea, or possibly turn to the northwest before doing so. Overall, background conditions are fairly hostile in the Atlantic, so I wouldn’t necessarily be counting on this system to become the Atlantic’s first hurricane. But we’ll keep an eye on things and alert you if there’s anything to be concerned about. For now, the answer is no.

Healthy chance of showers and thunderstorms today, and then it will be hot and dry

In brief: The Houston region will see its best conditions for rainfall for at least the next week, and probably longer, today as tropical moisture surges. After this high pressure clamps down and the region will experience some serious August heat.

High pressure is coming

Over the weekend, the region saw scattered showers and thunderstorms due to a weakness in between two high pressure systems. That ongoing weakness today, along with surging tropical moisture levels, is going to give us a day with fairly healthy rain chances for much of the Houston region. But soon, beginning Tuesday, high pressure over our region will begin to amplify. This will bring us one of those classic August ridges beneath which temperatures soar, skies are clear, and rain showers are nowhere to be found. This pattern is likely to persist into next week.

Rain accumulation forecast for now through Monday night. (Weather Bell)

Monday

We are already seeing some scattered showers develop offshore this morning, and these should begin to move inland by 9 am to noon. Theses showers will progress into central areas a little bit later today. Not everyone is going to get rainfall, to be sure, and chances for areas north of Harris County are lower than for locations closer to the coast. Totals will generally be less than 1 inch, and my sense is that if your yard ends up with half an inch of rainfall you should count yourselves lucky. Rain chances subside by this evening.

In terms of temperatures, because we are going to see a few more clouds today, I think highs will generally max out in the low-90s for Houston, and possibly mid-90s for inland areas such as The Woodlands. Winds will be light, from the south, perhaps gusting a bit later this afternoon. Overnight lows may briefly fall into the upper 70s.

Tuesday

This day will see highs in the mid-90s, with mostly sunny skies. There is perhaps a 10 or 20 percent chance of showers as high pressure begins to build over the area. So probably not, but there is at least the slightest of chances.

Our temperatures will be remarkably consistent this week, after today. (Weather Bell)

Wednesday through the weekend

Highs will range from the lower 90s right along the coast to the upper-90s for central and inland portions of the Houston region. We cannot rule out some 100-degree readings. Rain chances will be near zero with sunny skies. If you have any outdoor plans, you can be confident in hot and sunny August weather complying. If you’re tired of the heat and humidity, well, it’s August my friends. It isn’t going anywhere.

Next week

This high-pressure dominated pattern will hold into the middle of next week. After that there’s some possibility of change, but it’s not something I’m willing to bet on at this point.

The tropical wave in the Atlantic Ocean is most likely to recurve well before reaching the Caribbean Sea. (Weather Bell)

Atlantic tropics

We’ll have a few more words to say about this tomorrow, but we are starting to see some signs of the Atlantic waking up a little bit. Of particular note is a tropical wave in the eastern Atlantic, which appears increasingly likely to develop into a tropical storm. But at this point there are good reasons to believe it will not be a threat to the Gulf, and probably not any landmasses. We’ll see.