One more day of widespread rain before sunnier weather returns

As expected, Sunday saw a burst of heavier rain showers across the area, with a few parts southern and eastern parts of the region (such as League City) picking up 3 inches. Fortunately these heavier rains moved on, because in some cases the rainfall rates exceeded 5 inches/hour over 15-minute periods. We’ll see the potential for more of the same today before our weather pattern takes a turn toward drier (although still very humid) conditions.

Monday

Plenty of atmospheric moisture remains spread across the Houston area today, but there’s not as much impetus for it to rise in the atmosphere. For this reason, I think we’ll see the potential for heavy showers on Monday, but they probably won’t be quite so widespread as we saw on Sunday. Nevertheless, where strong storms do develop, they will certainly be capable of causing some temporary street flooding. For this reason, beginning around noon today, it’s probably best to check the radar before making a trip across town. Mostly cloudy skies should help keep daytime temperatures at 90 degrees, or just below.

Another potentially wet (but not too wet) day across Texas. (Pivotal Weather)

Tuesday and Wednesday

Atmospheric moisture levels (presently at about the 99th percentile for this time of year) should fall beginning Tuesday. With less moisture to work with, and high pressure moving in from the north, we expect to see a gradually diminished rain chances beginning Tuesday and Wednesday—probably only a 30 to 40 percent chance of moderate showers. With sunnier skies, we can correspondingly expect highs to nudge back up into the steamy lower- or mid-90s.

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Sunday update: Strong storms possible this afternoon

As expected, higher moisture levels are pushing into the Houston region from the Gulf of Mexico today. This will lead to storms across the area, possibly widespread, as temperatures warm into the 80s later this morning. This provides the potential for a quick pickup of 1 to 3 inches of rain for a few areas, and depending upon the rainfall rates we could see some temporary street flooding.

Widespread totals will probably only be about one-half inch of rain today, but we will see higher isolated amounts. (Pivotal Weather)

The bottom line is that if you plan to be out and about from around noon to 6pm, check the radar, and be weather-aware. We’re not expecting widespread problems, but you should definitely be prepared for storms to pop up quickly, and drop a lot of rain. Monday will probably be similar (although with less coverage) before rain chances begin to dial down significantly on Tuesday.

Tracking more heavy rain for Sunday in the Houston area

Anyone who has lived in Houston knows there are basically two choices for weather during the months of July, August, and the beginning of September: Hot, sunny, and humid; or Warm, wet, and still humid. Houston has experienced both of these extremes already in July, with three days of highs in the upper 90s, followed by a day of 70s and heavy rain on the July 4th holiday. Over the next several days we’ll lean more toward the warmer and wetter variety, with an eye toward more widespread, heavier rainfall returning Sunday.

July in Houston: Do you want heat, or monsoons? (National Weather Service)

Friday

Storms have remained offshore this morning, and some slightly drier air has worked its way into the Houston region. However, as temperatures warm into the mid- to upper-80s later this morning, and the sea breeze gets going, I expect we’ll see some decent rain showers this afternoon, with a few heavy cells setting up (like we saw on Thursday, with a narrow, but heavy band of showers near Highway 288 and the South Sam Houston Tollway). I don’t expect significant problems. Look for highs around 90 degrees, or a bit warmer depending on how much sunshine your area sees this afternoon.

Saturday

I expect Saturday will be a lot like Friday, although with a few more clouds, and slightly reduced rainfall chances. The potential for heavier rainfall remains low, and any intense storms should be fairly scattered in nature. Highs in the low 90s.

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A calmer Thursday for Houston

After yesterday’s wild weather, things will scale back a bit today, and we should end up calmer. All bayous and rivers are within their banks and generally lowering, including the San Jacinto River at Humble, which briefly popped into minor flood stage last night.

The West Fork of the San Jacinto River near Humble briefly went into flood last night, but it has since fallen back a bit. Other bayous and rivers are receding or safely below flood stage as well. (NWS)

Calmer weather doesn’t mean totally dry, however. Over the next several days we’ll be dealing with a few disturbances to bring us more rain chances, though at this point none look quite as significant as what we just experienced.

Today

We’ll see a return of some sunshine and heat today, as we start the day partly to mostly sunny. A few showers will be possible south and west of Galveston this morning, down through southern Brazoria and Matagorda Counties. As we heat up, I do expect at least a few more showers and storms to develop elsewhere in the region, but these will be more of the hit and miss variety, with many neighborhoods staying dry today. Expect high temperatures in the lower 90s.

Any storms that do occur today will be capable of briefly heavy rainfall and some gusty winds, as well as lightning. So just be aware of that.

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