Still a chance of flooding today in Houston, but slightly drier heading into the weekend

Houston experienced another wet day Monday, but with nearly all of the metro area receiving 2 inches of rain or less the water levels were manageable, and flooding limited as bayous were able to fall back down to near-normal levels.

As a bonus, highs generally only climbed in the mid- to upper 80s, and lows fell into the mid-70s this morning across much of the region. It feels—almost—nice outside. Especially for August.

Today

The greater Houston region remains under a flash flood watch through this evening, and it’s not hard to understand why. Although bayous are generally low, area soils are now wet, and any rain that falls will flow directly into bayous. With atmospheric moisture levels still quite high, it will be possible for some isolated areas to pick up an additional 3 to 5 inches today, the National Weather Service warns.

With that said, most of Houston will likely see a day similar to Monday—mostly cloudy skies punctuated by some relatively short-lived but potentially intense thunderstorms. I’m hopeful we will not see widespread flooding, but given the moisture in the atmosphere we can’t rule it out. Be sure and enjoy those highs in the 80s.

Wednesday and Thursday

Atmospheric moisture levels will slowly fall, and along with it we should see slightly fewer daily showers, and those that form should have a bit less intensity. We’re still likely to see rainfall, but the threat of significant flooding should decrease as we get further into the work week. Highs will remain seasonally cool, in the mid- to upper-80s.

Most of the greater Houston region could pick up an additional 2 to 3 inches of rain this week. (Weather Bell)
Most of the greater Houston region could pick up an additional 2 to 3 inches of rain this week. (Weather Bell)

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Rain to continue most of this week for Houston, flooding possible

It’s been a soggy weekend for some parts of the greater Houston region. In northwest Harris County, the Cypress and Tomball area have received 7 to 11 inches of rain, bringing Cypress Creek to bank full—but thankfully not beyond. Other areas such as Jersey Village (6 to 8 inches), Livingston (4 to 6 inches), Wharton County (4 to 6 inches), and The Woodlands (4 to 5 inches) have all gotten a lot of rain since Saturday afternoon. At the same time, some parts of the metro area (such as Spring, not far from The Woodlands) have gotten almost no precipitation at all. Such is the nature of these storms. Here’s a full list of rain totals through Sunday evening.

Rainfall totals this weekend, through 5am CT Sunday. (National Weather Service)
Rainfall totals this weekend, through 5am CT Sunday. (National Weather Service)

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Houston sees some heavy rains, but no major flooding yet

Northwest and northern Harris County have again been the focus of heavy rains this afternoon, and some areas along Cypress Creek have now received as much as 10 inches of rain during the last 24 hours. Fortunately it appears waterways in the area are remaining just within their banks.

After nearly 10 inches of rain Cypress Creek is holding. (HCOEM)
After nearly 10 inches of rain Cypress Creek is holding. (HCOEM)

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Heavy rains hit Houston Saturday night, more coming today and Monday

Tropical rains arrived in abundance on Saturday evening across the Houston region, proving that it only takes a matter of hours to go from near-drought like conditions to flooding. The low pressure system that flooded Louisiana on Friday and Saturday, has spread out over east Texas into a broad area of low pressure. At the same time atmospheric moisture levels are extremely high, which will allow for high hourly rainfall rates, possibly in excess of 3 inches per hour in some areas. This all adds up to the potential for ongoing and worsening flooding in Houston.

Today and Monday

The storm system has already flashed its potential this morning by dumping as much as 6 inches of rain to the northwest of Houston, near the Jersey Village area (a flash flood warning is in effect for this area). So far most bayous (including Cypress Creek and White Oak Bayou) are remaining within banks, but they have filled up quickly as the majority of the rain fell within about a three hour period. Fortunately this storm cell is now weakening, but if such an event repeats itself later today over this area, widespread flooding will likely result.

Atmospheric moisture levels are very high this morning. Anything about 2.2 inches of precipitable water is conducive for heavy rain. (Weather Bell)
Atmospheric moisture levels are very high this morning. Anything about 2.2 inches of precipitable water is conducive for heavy rain. (Weather Bell)

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