Tropical system forming in southern Gulf: Not a threat to Houston, but may bring elevated rain chances Sunday

In brief: A tropical disturbance has developed in the southern Gulf, and it is expected to move into Mexico early next week. Houston can expect to see elevated rain chances on Sunday due to moisture from this system.

I hope everyone is having a great start to the weekend. It is sunny for most of us, and should remain so for much of today as high temperatures climb to around 90 degrees. For late June, this is mild weather. However, if we look a little bit further afield this morning we can see an area of low pressure in the Bay of Campeche, in the southern end of the Gulf.

The system should slowly move to the west, toward the coast of Mexico, and push inland by Monday. There is a healthy chance (50 percent, says the National Hurricane Center) that this could become a tropical depression or storm during the next 48 hours, before moving inland. The waters there are plenty warm to support development.

The National Hurricane Center gives this disturbance a 50 percent chance of developing.

We are interrupting your Saturday to emphasize that this system is of no threat to Houston in terms of high seas or winds. That goes pretty much for the entire state of Texas. However, moisture associated with the tropical low pressure system should help to increase rain chances on Sunday, and possibly into Monday.

This, as well, is not of too much concern. Overall I would expect accumulations for areas south of I-10 to average 0.5 inch or less on Sunday, with lower totals further inland. However, at this time of year, especially with tropical rainfall, we can see rain totals pile up quickly. So it would not surprise me to see a few isolated areas pick up a couple of inches of rain on Sunday, which would briefly cause some ponding on streets and in parking lots. Again, for the vast majority of the region these should just be your garden variety showers and thunderstorms.

Lesser rain chances linger into Monday, and then most of next week looks hotter, with highs likely reaching at least the mid-90s.

9 thoughts on “Tropical system forming in southern Gulf: Not a threat to Houston, but may bring elevated rain chances Sunday”

  1. Thank you for this update. I wonder how long it will take for the Harvey PTSD to go away…

    • I hope you have been able to get treatment for your PTSD since Harvey. Hurricane season can be stressful for those affected in the past

    • We lived in Cypress on a couple acres. Harvey dumped FIVE feet of water into the home and 5 car garage. Lost 2 of 4 cars and motorcycles, plus all furniture/ appliances, etc in the home.

      When we reached 90% completion of rebuilding the home, the County offered to buy the property. Why we’re in Magnolia now on higher elevation.

      One day way in the past, I was near the Cypress home, so decided to drive by. Ironic timing – a huge excavator was reaching over the roof and tearing the house down. I immediately grabbed my smartphone and took photos. Today, you’d never know there was a home and back garage there. Thankfully, no Harvey stress for us. 👍

  2. Channel 13 is showing highs hitting 100 in Houston 3 days in a row after July 4th, with lows in the low 80s. I really hope that’s not true.

    • Summer hater: I’ve looked at several local sources including the NWS and so far not one of them is showing highs of 100°F other than ABC 13. In fact the NWS at IAH is showing nothing higher than 94°F through Saturday July 5th so far. And the July outlook map from TWC is showing near to slightly above average temperatures. No real evidence of a death heat dome yet. Keeping both fingers crossed that the tradeoff is NOT something tropical.

  3. Could you and Matt please instruct the weather Gods to cease their bi-forcation of storms once they reach the wealthier zip codes in Houston ?

    Even those of means periodically enjoy free irrigation.

  4. It’s now 7:48am Sunday here.
    Well, Disturbance 1 is now reported at the NHC website … a yellow blob from the northeast Gulf reaching to the Atlantic (across FL). 20% 7 days, near 0% for 2 days.

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