Heat index to reach triple-digits in North Texas this week as moisture builds from the Gulf
Heat and humidity are becoming the main weather story across North Texas. High temperatures will climb back into the 90s on Tuesday and continue rising Wednesday and Thursday. Heat index values are expected to reach 100 to 105 degrees, with some locations potentially exceeding 105 degrees by Thursday afternoon.
We're also monitoring a developing system along the Texas Gulf Coast that has a 70% chance of becoming Tropical Storm Arthur.
Quiet weather continues with partly cloudy skies and warm overnight temperatures in the low to mid-70s.
Wednesday, the Gulf system remains well to our south, allowing drier sinking air to dominate North Texas. Rain chances remain very low, but temperatures and humidity will continue to increase. Highs will reach the low to mid-90s with heat index values exceeding 100 degrees. Breezy with some gusts reaching 30 mph.
Thursday is the hottest day of the week. High temperatures will climb into the mid to upper 90s with heat index values near or above 105 degrees. A heat advisory may eventually be needed if current trends continue.
A cold front approaching from the north will bring the next chance for thunderstorms Thursday night into Friday. Storms may begin arriving Thursday night and continue into Friday. Some storms could produce gusty winds and heavy rainfall. The exact arrival time, storm intensity, and location of the heaviest rain remain uncertain and will likely be refined over the next couple of days.
Showers and heat this weekend in North Texas
Forecast confidence remains lower for the weekend. A slow-moving front is expected to move into North Texas Thursday night and Friday, but its eventual position remains uncertain. If the boundary stalls across the region, additional rounds of showers and thunderstorms could develop Saturday (40%). Given the high moisture content in the atmosphere, any storms that develop would be capable of producing locally heavy rainfall. Sunday will be hotter with a high of 97F and a 20% chance of an isolated shower.
