Matt Lanza

One more mostly nice day before typical summer returns to Houston

Dry air poured back into Southeast Texas yesterday, and despite high temperatures near 90 degrees, it really didn’t feel bad at all. In fact, dewpoints dropped into the 50s officially at IAH Airport for the first time in June since 2017. We’ve got one more day of this nice stuff today before we return to more standard summer.

Today

Sunshine dominates once again. With dry air in control, we should again see humidity drop to near “comfortable” levels for many parts of the area. Look for high temperatures to pop back to 90 or better for most, however.

Air quality today will be a little better than yesterday, but still unhealthy for sensitive groups due to ozone. (EPA)

Winds will again be on the light side, so expect air quality to be fairly stagnant once again. While not as bad as Wednesday, today will again be an ozone action day, with poor air quality this afternoon. If you’re in a sensitive group or struggle on bad air quality days, take it easy and try to stay indoors later today. If you’re ever curious about the air quality outlook, the Texas Commission on Environmental Quality publishes 4-day forecasts each day. You can bookmark that link here.

Friday

Look for another sunny day tomorrow. The difference will be in the humidity. Dewpoints are expected to slowly rise late tonight and most of the day Friday, and they should end up back around 70, or uncomfortable, by Friday evening. Expect us to start the day pleasant (mid-60s) and finish hot (low-90s). Air quality will improve a bit as onshore winds kick up during the day.

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Hot, but not too humid the rest of this week in Houston

Disappointingly, IAH Airport officially failed to get dewpoints to drop into the 50s yesterday, though Hobby, Ellington Field, Hooks Airport, and Conroe, among others all did for a few hours. Regardless, it was not a bad Tuesday for the middle third of June in Southeast Texas.

Today

We’ll have another shot at fairly comfortable weather today. Showers this morning are pushing offshore of Galveston and Freeport, and the bulk of today should be dry for most of us. An additional pop-up shower is possible near the coast this afternoon. Otherwise, it should be mainly sunny. After failing to hit 90 yesterday, we should be able to manage about that hot today.

Thursday & Friday

Dry air will be reinforced tonight, keeping the offshore winds going for one more day. Mostly sunny skies will greet us Thursday. We have another chance at seeing dewpoints plunge back into the 50s in parts of the area Thursday afternoon. This front will not reinforce any remaining cool air, however. We should easily push past 90 degrees Thursday afternoon, though with the low humidity, it won’t feel much worse than that.

This forecast of NAM model dewpoints around 1 PM Thursday suggests that drier than usual air for June is going to be reinforced for one final day tomorrow. (Weather Bell)

Friday will be our transition day back to summer. Look for the day to start in the lower 70s, and we’ll again reach for the low-90s in the afternoon with sunshine. Humidity will slowly climb on Friday afternoon, and dewpoints should cross back above 70 at some point later in the day, or back into “uncomfortable” territory.

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Talking hurricanes and flooding with Harris County Judge Lina Hidalgo

Following her election victory in 2018, Harris County Judge Lina Hidalgo has made regional flooding one of her top priorities. With the onset of the 2019 Atlantic Hurricane season, Hidalgo sat down with Space City Weather managing editor Matt Lanza to talk about that, what she’s learned about flooding in Harris County, and what she’s doing about it.

“First, everybody needs to have a plan for themselves, for their families and their pets,” she said during the interview. “That means having their gas tank fueled and having a safety kit. Make sure folks have medicine, food, and water for seven days. That’s what we like to ask folks to make sure to have.”

Seven days may seem like a long time, but as Hidalgo and the rest of the region experienced after Hurricane Ike in 2008, and like most of us witnessed after Harvey, it’s not unreasonable to expect to be homebound for an extended period of time after a storm.

The Harris County Emergency Management website, “Ready Harris,” has a checklist of emergency essentials for building your kit (The Houston National Weather Service guide to hurricanes and severe weather is also useful). It also wouldn’t hurt to bookmark the Ready Harris website if you live in Houston or Harris County, as Hidalgo anticipates it will become the one stop shop for official information during disasters.

Harris County Judge Lina Hidalgo speaks in May. (HCOEM)

“Our vision is to really make Ready Harris the hub for everything,” she said. “It’s not (yet) where it needs to be. We’re working on it. We have a very exciting vision for it. Part of it is like what you guys do: Putting things in very accessible terms. Making sure that we’re informing the community and that we’re very clear. And that we have the information that they need and only the information that they need.”

Flood mitigation

Ultimately, every conversation about Houston and hurricanes or weather comes back to flooding. Most of our readers know this topic is unavoidable. And the bulk of my conversation with Judge Hidalgo centered around flooding. Flooding happens rather frequently around here. “We’ve always faced the challenge of flooding, and people who’ve lived here 5 years and 50 years all understand it,” she says. The topic of how to control it or mitigate it is pretty unavoidable too.

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A pretty nice June day in Houston today

Monday wasn’t totally delightful (we still popped above 90°), but it sure felt a little nicer with some drier offshore winds. Today, we will lower temperatures and humidity a bit more.

Today

Look for a really, really nice June day today. It’s rare that we can say that here in Houston, but this is probably as close to as good as it gets this time of year. Look for high temperatures to hit the upper-80s under a mix of sun and clouds. Dewpoints have already dropped into the 60s and could be on their way into the 50s for some of us, which means the humidity will feel extremely more tolerable than it has since sometime in May.

The NAM model forecast for 1 PM today shows dewpoints in the 60s, with risk for 50s wherever you see the blue color. (Weather Bell)

We often talk about dewpoints as being a better gauge of humidity, or generally how it really feels.

Roughly, for Houston:

  • 70s means uncomfortable, or typical summer
  • 60s means humid, but not terrible
  • 50s means mostly comfortable
  • 40s or less means very comfortable or dry.

In my opinion, dewpoint works better than relative humidity as a way to figure out how comfortable it is. And Houston will be teetering on the edge of comfortable today and tonight.

If there are any gripes about today’s forecast they would be the cloud cover, which could be a little thick at times. A stray shower is also possible, mainly well south and west of Houston, toward Victoria.

Wednesday

Expect a good deal of sunshine on Wednesday. There will be a chance of showers or a storm as a reinforcing cold front drops through from morning into early afternoon. We will start the day cool for June, likely in the 60s in much of the area, particularly outside the city and away from the coast. High temperatures will top off in the low-90s in Houston. Humidity will remain lower than average, but a couple ticks higher than today.

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