Tropical Update: Invest 98-L to Bring Heavy Rain, Flash Flooding to Texas

Figure 1. Latest 5-day quantitative precipitation forecast. Image: Pivotal Weather

Humberto is now a category 2; likely to become a major hurricane.

As of the 8 PM EDT, maximum sustained winds were 90 mph, the minimum central pressure was 966 millibars, and movement wast to the east-northeast at 7 mph.

Forecast for Humberto

Other than the fact that Humberto is now officially forecast to become a category 3, there have been no change.

Figure 2. Latest forecast track for Humberto from the National Hurricane Center.

Model guidance is in agreement with the official forecast (see figure 2), keeping Humberto moving away from the U.S.

Humberto will continue to strengthen through the next day or so. However, weakening is expected by Wednesday due to an increase in wind shear.

Invest 97-L

The tropical wave in the Main Development Region (MDR) has been tagged Invest 97-L.

Figure 3. Latest track guidance for Invest 97-L. Image: Tropical Tidbits

In their 8 PM EDT Tropical Weather Outlook, National Hurricane Center (NHC) now put the chance of tropical cyclone (TC) formation at 90 percent over the next 5 days.

A track out to sea remains the most likely outcome per the most recent model guidance.

Invest 98-L

The disturbance in the western Gulf is back up to a 20 percent chance of development and has been designated Invest 98-L.

However, development is still unlikely, as 98-L will move inland by Tuesday night.

Regardless of development, heavy rain is still expected across coastal/south Texas (see figure 1), with flash flooding now looking like a distinct possibility.

Caleb Carmichael
Caleb Carmichael

Caleb is the owner of Gulf Coast Storm Center. He is currently an undergraduate student at Mississippi State University majoring in geoscience with a concentration in broadcast and operational meteorology. While not yet a meteorologist, Caleb has been providing weather updates, news, and analysis for the Gulf Coast since 2014.

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