Eric Berger

Tropics heating up: One storm may track toward Florida this weekend

As one would expect toward the end of August, the Atlantic tropics are starting to heat up, and we may see both a Gaston and a Hermine within the next week. As of 1pm CT on Monday, here’s the state of play in the Atlantic tropics.

(National Hurricane Center)
(National Hurricane Center)

 

The red blob on the right is Invest 90L, and it’s soon to become Tropical Storm Gaston. I feel pretty confident that that’s all we’re going to gave to say about Gaston as a threat, because it has the look of a “fish storm,” meaning the system will probably recurve before it reaches the United States. We may have some concerns down the road about this being a threat to Bermuda, but I don’t think it gets that far west.

So what about the other storm?

Unfortunately we can’t be so dismissive about the orange blob, which is Invest 99L. The system remains rather disorganized right now, and due to the influence of dry air the National Hurricane Center only gives 99L a 50 percent chance of developing into a tropical storm or depression during the next five days.

While the system may not develop it’s expected to drift toward the Bahamas by this weekend. Here’s a look at the GFS model forecast positions for the “low” associated with 99L by Sunday night:

(Weather Bell)
GFS model forecast for Sunday night. (Weather Bell)

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Drying a bit this week in Houston, but “mild” August weather to continue

It has been quite a different middle of August for the greater Houston region. During the last eight days the high temperature has stayed in the 80s for six of those days, with a maximum of 92 degrees. And the rain. We’ve had lots of it. The greater Houston metro area has recorded 4 to 16 inches of rain during the last two weeks—an uncharacteristically wet spell for the dead of summer.

Here’s a rainfall accumulation map for the last 14 days:

Rain totals over the last 14 days in the Houston area. (NOAA)
Rain totals over the last 14 days in the Houston area. (NOAA)

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Severe storms west of Houston, one more wet bout ahead for the city

It has been a partly to mostly sunny day for much of the Houston with a few rain showers developing across the city. But the second half of the weekend and into Monday looks notably wetter.

Saturday night

For tonight heavy rain will remain to the west of Houston, most concentrated over the Hill Country. A stalling cold front along with ample moisture will set the table for potentially flooding rains in the San Antonio and Austin areas. Forecast models support the idea of some areas receiving in excess of 10 inches of rain between Saturday morning and Sunday night.

Excessive rainfall outlook through 7am CT on Sunday. (NOAA)
Excessive rainfall outlook through 7am CT on Sunday. (NOAA)

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After the big sizzle, Houston enjoys some cooler weather for a few days

Through the first 12 days of this month Houston had an average high temperature of 99 degrees, including five consecutive days with highs of 100 degrees or above. Overnight lows were sticky, too. We all felt the sizzle. But as high pressure moved out, and clouds and rain moved in, daytime temperatures have plummeted. During the last three days Houston has enjoyed high temperatures averaging 85.5 degrees, and morning lows of 75 degrees.

Of course the counterpart to these delightfully “cool” temperatures for August has been the potential for flooding, and it’s not going away quite yet I’m afraid. Houston remains under a flash flood watch through at least 7pm Wednesday evening.

As rains moved in, temperatures went down. (National Weather Service)
As rains moved in, temperatures went down. (National Weather Service)

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