HOUSTON, Texas (KTRK) -- We are in a typical summertime weather pattern through Saturday, but we are eyeing a pattern change late this weekend that has prompted an ABC13 Weather Watch for Monday and Tuesday. That's when high levels of tropical moisture collide with June's version of a cool front, which could bring torrential downpours and flash flooding to parts of Southeast Texas. Until that pattern change occurs, expect highs in the low 90s with heat index values above 100 each afternoon.
Saturday will be steamy with peak heat index values in the low 100s along with a 30% chance of a cooling downpour.
That will occur on Sunday. At this time we have rain chances at 30% Saturday and 60% Sunday, but the highest chance over the next 10 days is currently reserved for next Monday and Tuesday with 80% odds. A significant flooding event is possible on those days when a cool front interacts with that moisture. The front could focus a band of training storms with torrential rain. Stay tuned!
It has everything to do with the wet ground and high humidity. True, our highs are only hitting the low 90s, but when you factor in all that humidity, it feels about 10 degrees hotter to our bodies.
The National Hurricane Center has given the tropical wave in the Bay of Campeche a 20% chance of developing into a tropical depression or storm. That's the moisture that surges in here this weekend and early next week. For the latest on what's happening in the tropics, head to our Tropical Update page for our daily tropical weather discussion and forecast.
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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