Triple-digit heat continues this week with small rain chances by week's end
HOUSTON, Texas (KTRK) -- The heat dome is still in control of the forecast early on this week, bringing Houston more triple digit days. But as this system moves to the west, an increase in moisture levels across the Gulf Coast could bring a few showers and storms to Southeast Texas later this week.
Get ready for another triple-digit day! High temperatures this afternoon will reach 102 degrees once again this afternoon under a mostly sunny sky. The Heat Advisory remains in effect until 7 p.m. Tuesday for all of Southeast Texas as heat index values this afternoon will make it feel like 106 to 110 degrees at times. The National Weather Service has mentioned that it's likely to keep the Heat Advisory in place through at least Wednesday.
Is there any rain in the forecast?
Yes, but the chances are slim. The next best chance for rain arrives later this week. We have a 30% chance of rain on Thursday and Friday as the heat dome slides back to the west and moisture levels rise. Then there's the chance for the sea breeze toe return next weekend, but only a 20% chance we get some rainfall from that.
What should I know about the potential for a flash drought?
First, it's important to understand what a flash drought is. This is what we call it when a drought suddenly develops over 1 or 2 weeks of hot, dry weather instead of the usual 1 or 2 months it takes a more typical drought to develop. We are already seeing "abnormally dry" conditions spread across Southeast Texas, and soon moderate drought may return. This means if you want to keep drought-sensitive vegetation alive during this heat wave, you will need to provide the water. You might also consider providing low amounts of water to your home's foundation to help stabilize the soil moisture and prevent movement in the ground that supports your foundation. This is especially important if your soil is mostly composed of clay.
Are there any signs that this hot, dry pattern will break any time soon?
We see a glimmer of hope that the pattern could budge some toward the end of this work week, which is why we have an "optimistic" high of "just" 100 and a 30% chance of rain in the forecast by Thursday. Friday looks even better with a high of 99 and a 30% chance of rain. This weather change will be caused by a weak front that could bring more widespread rainfall. For now we are keeping our expectations low until we gain more confidence on the pattern change.
What's happening in the tropics?
We have a few areas of potential development worth keeping an eye on, but as of now there are no immediate threats to Texas. For a more in-depth discussion on what's happening in the tropics, visit our Daily Tropical Update page.
13 ALERT RADAR MAPS:
Southeast Texas
Houston
Harris County
Galveston County
Montgomery/Walker/San Jacinto/Polk/Grimes Counties
Fort Bend/Wharton/Colorado Counties
Brazoria/Matagorda Counties
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