We are not quite done with rain chances in the Houston area yet as potent summer heat looms

Yesterday saw some locally hefty rains across the area. We picked up anywhere from 1 to 4 inches of rainfall between Pearland and Westchase, with another bullseye out west of Cypress along 290 into Waller County.

Radar estimated rain totals were as high as 4 inches in parts of Waller County and close to that near the intersection of the Westpark and the Beltway. (NSSL)

Areas just south of The Woodlands saw 2 to 3 inches of rain as well. Even Matagorda Bay (not shown above) saw about an inch or more in most the area. We are not yet done with the rain, though we do not believe today will play out quite as yesterday did.

Today

We’re starting the day off with an area of rain sitting near Matagorda Bay and just a few showers in and around Galveston Bay and the island.

Heavy rain is impacting the Matagorda Bay area this morning, with just a few showers and rumbles of thunder around Galveston Bay. (RadarScope)

As the day goes on, look for more scattered thunderstorms to develop across the area. The highest chances will be south and east of about Cypress. So much of the area will see showers or at least hear thunder again. Those that see showers today could see as much as an inch or two of rain, while others will see next to nothing. Look for generally low 90s and light winds (except localized gusts in storms).

It feels like we have one or two more decent chances at rain today and tomorrow before the spigot is basically shut off.

Saturday & Sunday

If you have weekend plans, you will probably be fine. But there will certainly be thunderstorms in the area. Look for about a 30 to 40 percent chance of showers and storms on Saturday, followed up by about a 20 percent chance on Sunday. Outside of showers, look for sun, clouds, and slowly increasing temperatures. We’ll be in the low to mid-90s tomorrow and firm mid-90s on Sunday. Morning lows should be in the 70s on Saturday before back closer to 80 degrees on Sunday morning.

Early next week

Rain chances don’t quite go to zero to start next week, but they will drop off to the 10 to 20 percent range on Monday and Tuesday. As that occurs, look for temperatures to warm into mid to upper-90s, with morning lows near 80 degrees. It will begin to feel rather uncomfortable with peak heat index values over 105 degrees.

We expect to start seeing the question “when will this round of heat ease up?” soon, and unfortunately we don’t have a clear answer right now. (Weather Bell)

Heat returns

By the time we get to Wednesday, look for high temperatures near 100 degrees, give or take a couple, with morning lows around 80 degrees. The difference between this heat wave and June’s heat wave will be noteworthy. In June, the high pressure setup directly over northern Mexico or Texas, and we just baked with extreme (for June) heat. This time around, it looks more like a traditional summer heat wave, with high pressure centered over the Desert Southwest. It will strengthen and expand to a point where we see just a lot of generically “hot for July” weather in southeast Texas but probably not extreme heat. If the June pattern had recycled this time around, we’d probably be talking 102 to 105 degrees every day. Instead, we’re probably talking 98 to 102 degrees, which while quite uncomfortable is not terribly uncommon in July.

That said, I fully expect heat advisories to re-enter the chat by early next week. As this will again be a potent, long-duration period of high heat and humidity, heat precautions should be taken as they were in June.

Houston should see widespread showers today before very high heat builds back next week

Today will offer the Houston region its best chance for widespread rainfall in several weeks as a disturbance over the Gulf of Mexico propagates inland. Friday will be somewhat of a transition day before hot and sunny weather returns this weekend and pretty much all of next week. We are probably looking at a sustained stretch of 100-degree days.

Thursday

A large mass of showers and thunderstorms has developed to the southwest of our region, near Matagorda Bay. I expect these storms to gradually move toward Houston, and accordingly our chances for showers today will be highest from mid-morning through mid-afternoon. Accumulations will be widely variable, with most of the area receiving 0.5 to 1.5 inches. Flooding should not be a significant concern, but a few streets may back up under the strongest storms. Showers will end this afternoon or early evening as daytime heating ebbs. Mostly cloudy skies and rain-cooled air should limit highs today in the upper 80s to 90 degrees. Southerly winds will be light, at 5 to 10 mph, with lows tonight in the upper 70s.

NOAA rain accumulation forecast for Thursday. (Weather Bell)

Friday

Skies will turn partly to mostly sunny on Friday, and highs should perk up into the low- to mid-90s. Some additional showers will be possible during the daytime, with heating. Overall chances are probably about 40 percent, and accumulations should be much less than on Thursday.

Saturday and Sunday

This looks like a classic July weekend, with high temperatures in the mid- to upper-90s and mostly sunny skies. There is a 10 to 20 percent chance of showers each day, but probably not enough to disrupt any outdoor activities you have. Please make sure to take precautions in the heat and (very nearly) direct sunshine at midday.

It’s back into the pressure cooker for Texas next week. (Pivotal Weather)

Next week

I wish the outlook were better, but unfortunately we’re going to see the return of very hot weather as high pressure once again builds over the region. We are looking at highs of around 100 degrees each day, beginning Monday. We may reach extreme heat advisories at some point. It looks like the heat will persist through at least the middle of the month, as the high pressure dome looks really stout.

Storms are likely today and Thursday; also we have some housekeeping notes

Good morning. Houston faces the first of two days of fairly widespread showers, and the potential for some thunderstorms. Today and Thursday will offer a nice reprieve from the very high heat the region experienced in June. Temperatures will start to rise again this weekend, before we’re back in the upper 90s next week.

Before jumping into a detailed forecast, I want to go through a few housekeeping notes. The social network site Twitter used to be an amazing place to share weather information in real-time. However in the months steps have been taken to end the free dissemination of information, especially by National Weather Service accounts. The site has increasingly been gated and walled off, and is clearly evolving into something that will be not free and open and accessible to everyone. So our social media outreach strategy must evolve as well.

Today I wanted to remind readers of the four main ways to access our forecasts, and provide an update on our social media channels.

  • By visiting our website, SpaceCityWeather.com, any time, day or night. A Spanish-language version is available at Tiempo Ciudad Espacial.
  • By subscribing to our newsletter (the form is on the right side of this page on a desktop, but you have to scroll down on mobile to find it). There is no BS with our newsletter; just every post we do, directly into your inbox.
  • By downloading our app for Apple iOS or Android. Speaking of which, we have a brand new version of the app, with some new features and bugs squashed, coming within a week or two. Look for more details on that soon. The price remains the same: $0.00.
  • And finally, there’s social media. We’re on Facebook, Instagram and yes, for now at least, Twitter. We’ve also just created a Blue Sky account, and likely will start a Threads account when it launches this week (Threads is a Twitter-clone from Facebook). We’re considering Mastodon as well, but I have to tell you, this is a lot to keep track of. As noted above, we’re still navigating this landscape and trying to decide which sites work best for our messaging, and reaching people during times of inclement weather.

OK, now on to the forecast.

Houston area rain chances for now through most of next week. (Space City Weather)

Wednesday

In the absence of high pressure, our region is open to an influx of moisture from the Gulf of Mexico. Already this morning we see showers starting to fire up offshore, and with daytime heating these should migrate inland later this morning. The peak time for showers and thunderstorms will come this afternoon. You probably have about a 60 percent chance of seeing rain today. Thanks to the clouds, and rain-cooled air, most of the region should see highs of only around 90 degrees today, although it will of course remain plenty humid outside. Winds will be light, out of the south.

Thursday

Our chances for rain will peak on Thursday, as the upper-air pattern becomes most favorable for rising air. The coast will likely see the highest accumulations, but the entire area should see at least some modest accumulations. I’m not particularly concerned about flooding, as I think most of the area will see between 0.5 to 1.5 inches, and our soils are quite dry. Highs Thursday may not even reach 90 degrees in some locations. Winds will again be light, from the south.

Friday

As high pressure starts building in again, we’ll see rain chances start to tamp back down. Look for partly sunny skies and highs in the low 90s.

NOAA rain accumulation forecast for now through Saturday. (Weather Bell)

Saturday and Sunday

Expect mostly sunny conditions this weekend, with highs likely in the low- to mid-90s. Rain chances aren’t going away entirely, but we’re likely back down to a 10 or 20 percent chance, daily. Bottom line, it should be a hot, but not exceedingly hot July weekend. Conditions will be fairly typical for this time of year, actually.

Next week

Most of next week looks hot, with highs in the upper 90s to 100 degrees for much of the area, and mostly sunny skies. Rain chances will be very low, but perhaps not zero. The bottom line is that if you like your weather on the sane side of blazing hot, enjoy the next few days.

Showers possible today, clearing tonight for Fourth of July fireworks

Good morning, and I hope everyone has a great Fourth of July! In observance of the the holiday, today’s post will be fairly brief, with us returning to normal operations on Wednesday. As for the weather, our overall thinking on this week’s forecast has not changed too much. We’re heading toward a rainier pattern for the mid-week, followed by hotter and sunnier weather this weekend and next week.

Fourth of July

Skies will be partly sunny today, with highs in the mid-90s. We are starting to see the development of some showers off the Texas coast, in the Gulf of Mexico, at around sunrise. These will gradually transition inland today, with the bulk of showers and thunderstorms developing between late morning and late afternoon. Your chance of seeing rain is about 40 percent. The good news is that we generally expect these showers to clear out this evening, with partly cloudy skies and lows of around 80 degrees tonight. The viewing forecast for fireworks looks fine fine, if sweaty, as is customary in Houston.

NOAA rain accumulation forecast for now through Friday. (Weather Bell)

Wednesday and Thursday

The details are still to be determined, but we’re looking at a pair of cloudy and cooler days, with highs likely only reaching about 90 degrees, give or take. Both days should see widespread showers and thunderstorms as tropical moisture pushes inland from the Gulf of Mexico, with lesser chances overnight. Look for accumulations, on average, of 0.5 to 1.5 inches, with the higher totals more prevalent toward the coast. This will be our coolest, and likely wettest weather for awhile for the foreseeable future.

Friday and beyond

Rain chances don’t go away on Friday and Saturday, but they begin to diminish as high pressure starts to build back over the area. Look for highs in the mid-90s to start out, pushing back into the upper-90s toward 100 degrees by the middle of next week.

See you tomorrow!