Month: June 2021

We’re starting the day just a tiny bit less humid than yesterday. It has sure felt like summer the back half of this week. The humidity will remain high, but temperatures are going to gradually step back a bit as rain chances kick back up later in the weekend.

Friday & Saturday

Both today and tomorrow should feature mostly similar weather. Expect a mix of sun and some clouds, with highs in the low to mid-90s and lows in the mid to upper-70s, along with fairly high humidity. Rain chances will be pretty typical for this time of year, with at least a few showers or thunderstorms around. There could be a slight uptick in storm chances late Saturday afternoon or evening as the pattern over our area begins to change to one dominated by a trough in the upper atmosphere. This would be especially true south and east of Houston.

Sunday & Monday

Both Sunday and Monday will probably see scattered to numerous showers and thunderstorms. Monday may have slightly more coverage than Sunday, but both days will see considerable chances of rain at virtually any point in the day. Look for highs in the 80s, especially Monday. Lows will be in the 70s.

Rest of next week

The overall weather pattern next week will be a bit odd across the country, with all-time record breaking heat in the Pacific Northwest (seriously, just an incredible and disconcerting weather event up that way, amid a historic drought too; both events carrying the fingerprints of climate change), a hot East Coast, and a cool trough sort of stuck over the Central U.S.

What does this mean for Houston and the surrounding area? Well, it means we shouldn’t see any severe heat next week. Yay, us. High temperatures will actually be held down some because of higher rain chances. Days with more rain will be in the mid to upper 80s. Days with less rain should be in the low-90s. Lows should be in the 70s.

As is often the case, pinning down the exact timing of showers and storms and who will see the most rain is a bit of a meteorological slog; we just don’t know yet how things will precisely unfold next week. But suffice it to say there will at least be chances of rain or storms each day. Right now I’m favoring Tuesday and maybe Friday for the greatest coverage of storms, as the trough tries to reload itself nearby later in the week. But we’ll fine tune that through the weekend.

How much rain should we expect? As of right now, I don’t think this will be a major, widespread excessive rain event. But, a healthy 1 to 2 inches should be expected in most places on average between now and next Friday, with the regular caveats that some places could see more and others a little less. I do think areas south and east of Houston have a higher chance of seeing some of those higher amounts.

At this time, we don’t expect to have to use the Space City Weather Flood Scale, but we’ll be watching closely the next few days to see if that thinking changes.

By the way, it’s a good time to download our weather app, so you can know right away if any changes to the forecast occur this weekend! Tap here for Apple. Tap here for Android.

Tropics

We continue to watch this tropical disturbance (Invest 95L) way out in the deep Atlantic, and also way out of bounds for what is normal this early in the season. The National Hurricane Center has dropped development odds on this one a little since yesterday, sitting at 30 percent as of 1 AM CT.

We’ll get another update not long after I publish this post.

As of right now, we don’t think this has much of a future in front of it as it treks across the Atlantic. Given how out of bounds it is climatologically and a somewhat hostile road west, development, if any, would be very slow and possibly erratic. Probably nothing we will need to ever worry about, but it’s certainly nothing for us to worry about right now.

More on Monday morning or perhaps Sunday, if necessary.

Good morning. With high pressure more or less holding sway, our region will now see three hot and mostly sunny days before the forecast begins to change on Sunday. Most of next week still looks fairly cloudy and somewhat cooler, with healthy rain chances, although details remain very much to come.

Thursday

There are a few scattered showers along the coast this morning, and some of those may migrate inland before, or by around noon, and likely peter out south of Interstate 10. Otherwise, we’re looking at mostly sunny skies today, with highs in the low- to mid-90s, and light southerly winds. Combined with high dewpoints, this will be a hot and sticky day. Lows tonight won’t drop below 80 degrees for much of the area.

Friday

This should be a carbon copy of Thursday.

Saturday

Rain chances may increase to about 20 percent on Saturday, but for the most part this should again be a hot and mostly sunny day with highs in the low to mid-90s. If you have outdoor plans for Saturday, they should be good to go.

Sunday

I’m less sure about the second half of the weekend. High pressure will begin to retreat on Saturday, and this should open the door to more widespread showers on Sunday. While this should not lead to heavy rain on Sunday, you probably have about a 50 percent chance of seeing some showers on Sunday, with the possibility of a few thunderstorms. Skies will likely be partly sunny, with highs in the low 90s.

Next week

The upper atmosphere will be such that our region will see a series of disturbances move overhead next week, a pattern that could persist through the entire work week. This will lead to more cloud cover, and the absence of high pressure will lead to rain chances on the order of 40 to 60 percent each day, if not higher. I have little confidence in making an accumulation forecast this far out, but I suspect most areas will see at least 1 to 3 inches overall. This will help to keep high temperatures down to around 90 degrees.

Good morning. Today is something of a transition day, with ample moisture across the area battling against high pressure building into the area. As a result I think we’ll see at least some scattered rain showers today before a few days of mostly sunny and hot weather from Thursday into the weekend. Healthy rain chances return by Sunday.

Wednesday

Some showers have developed over the Matagorda Bay region this morning, and this activity should progress toward the Houston region later this morning and into the early afternoon hours. These showers will definitely be hit or miss, with a few areas seeing some briefly heavy rain and most others no rain at all. Skies will otherwise be mostly sunny, with high temperatures in the mid-90s, and southeast winds of 5 to 10 mph. Lows tonight will not drop below 80 degrees for much of Houston.

Thursday and Friday

As high pressure exerts a little more influence I think rain chances will fall back to less than 20 percent toward the end of the work week. This, combined, with mostly sunny skies, should lead to a pair of hot and sunny days for the region with light southerly winds. Lows will remain sticky, in the upper 70s to low 80s. As we get closer to July, it’s going to feel a lot like July.

Saturday and Sunday

The first half of the weekend should see similar conditions to Thursday and Friday, although there may be a slightly higher chance of an afternoon shower on Saturday. Highs will be in the low to mid-90s with mostly sunny skies, and if you have outdoor activities planned I think you’re probably going to be fine.

Sunday may be a different story, with a few more clouds, and perhaps a 50 percent chance of rain. Right now I don’t think there’s any kind of washout in the cards, but there’s definitely the possibility of passing showers. This should help to limit high temperatures to the low 90s.

Next week

Yet another dying front may approach Houston next week, and this in concert with rising atmospheric moisture levels will lead to better rain chances. It’s really hard to pin down any kind of details at this point, but most of next week will probably see highs of around 90 degrees, with solid rain chances. As for accumulations, it’s too early to do much more than speculate, but we’re probably looking at 1 to 3 inches for much of the region, with higher local amounts. If this happens it will put our soils in a good place heading into July.

Like we did in 2020, Eric and I are pleased to bring back the “Eye on the Tropics” series to Space City Weather. Each week, normally on Tuesday afternoons, either myself or Eric will write a more detailed post specific to tropical weather in the Atlantic. This allows us to go more in depth on what is happening, what we are watching, and what might be buzzing on social media with respect to tropical storms or hurricanes. We will keep these weekly updates going into August. Usually by mid-August there’s enough happening each day that we’re covering it in our daily posts.

Anyway, we are off to a roaring start this year.

Tropical outlook in a sentence

While we are monitoring the progress of a tropical wave east of the Caribbean islands and some model solutions have brought that or another system into the Gulf as a substantial tropical storm, there is still far too much uncertainty regarding its future to consider it a serious concern at this time.

2021 so far

Before we get to the Atlantic system we’re watching, let’s hit you with some statistics about the season so far. Claudette’s remnants are steaming out to sea in the Atlantic, our third named storm of the young 2021 hurricane season. While Claudette was quite quick to become our third storm, it did not come close to last year’s speed, when Cristobal was named on the 2nd of June. We won’t threaten the fastest to storm #4 either, as Danielle’s record in 2016 is already in the rearview mirror (June 20th). So, at least we aren’t quite pacing 2020 right now. Beyond that, there’s little to deduce based on this season’s activity so far.

Atlantic disturbance

The main thing to talk about this week is a disturbance in the Atlantic basin that the National Hurricane Center is currently giving 30 percent odds of development over the next couple days (Author’s note: Since publication, this has been dialed back to 20 percent odds).

This particular disturbance has probably already caused some folks heartburn as a few social media focused weather pages have irresponsibly shared operational model guidance from Sunday showing a presumed major hurricane hitting Texas in early July. What they don’t tell you, besides failing to offer any context, is that the very same model has subsequently sent a weaker storm to Brownsville, Mobile, the Florida Big Bend, Tampico, New Orleans, and Pensacola in various runs. In fact, I’ve put together a gif of the pinball game the GFS model has been playing lately below.

Again, some of the best advice we can give you, besides not looking at operational model runs to mentally prepare for a storm forecast, is to not waste your time on various Facebook weather pages that don’t identify who the authors are and with whom they are affiliated. But I digress.

So the real question is: Should we watch this system? The answer is yes but with the big caveat that there’s probably a very good chance this develops into nothing. And what some models have latched onto in the Gulf late next week may not even be directly associated with this system.

Looking at satellite imagery of the disturbance in question today, we can see just a disorganized “blob” of thunderstorms approaching the southern Windward Islands.

The NHC going with a low chance of development over the next 5 days seems reasonable based on this. The system is likely to be steered west or west-northwest around the periphery of high pressure in the Atlantic. This should bring it into the Caribbean, where conditions over the next 5 to 7 days won’t exactly be hospitable for development.

So even if this survives the trip, don’t expect it to be particularly healthy looking when it gets to the western Caribbean.

Beyond that, our ensemble guidance is very lukewarm on development and no real model at a place where I’m sitting up straighter in my chair out of concern. There’s some chance this could end up falling apart completely. It may make its way to the Pacific. Or perhaps it does indeed come to the Gulf. We don’t know, but we also don’t see anything notably alarming in model guidance either.

So the advice? Check back in every couple days for the latest, as you normally would during hurricane season. I would not waste energy worrying about this one though. Hurricane season is a marathon. Inevitably we are going to have to watch a storm or two with legitimate interest and concern come later July, August, or September. So pacing yourself if you can is a good plan of attack.

Anything else?

The good news is that beyond this system, there’s nothing else of note in the tropics. With a cold front crossing into our area this week and possibly another one next week, it’s probably best to not write the unexpected off completely. But there’s nothing in any modeling that suggests we need to really focus on anything specific for at least a little while.