UPDATE: 10:40 p.m.
No changes to the forecast. Be safe and have a great weekend! - Steve
Very Hot Weekend; Some Potential for Rain Sunday-Monday
5:00 p.m. Friday 21 July 2017
Heat Advisories are in Effect through Saturday Evening.
A nearly stationary upper high continues to dominate the weather from Texas to Illinois with Texoma squarely in the “furnace” again today. Although only a few spots reached an air temperature of 100 degrees, all locations were in the dangerous heat category with Heat Indexes between 105 and 110 degrees. Whew!
Conditions change little for Saturday with a sunny morning, a few clouds and lots of sun in the afternoon, and plenty of heat once again. Highs will range from 96 to 101 degrees with Heat Indexes of 104 to 109. There will be a bit of an afternoon breeze at 10 to 15 mph.
A shift in the upper level pattern shows the high aloft moving eastward and weakening, allowing a low-end frontal zone to approach, but not reach us, Monday. A chance of showers and storms will accompany the front and a weak mid-level trough that’s also expected.
The upper high re-develops to our west next week before placing itself nearly overhead; as a result the heat builds again with temperatures nearing 100 by Thursday.
Here are the numbers:
Overnight: Clear and warm…Lows 74 to 78
Saturday: Mostly sunny…..Highs 96 east to 101 west, Heat Index 105 to 110
Sunday: 10% Showers ….76/98
Monday: 30% Showers or Storms…..74/96
Tuesday: Mostly sunny…..74/97
Wednesday: Sunny skies…..75/98
Thursday: Very hot….76/100
News 12 / Weather Authority
|Lake Texoma Temp||82|
|Grayson County Airport Observed High||98|
|Grayson County Airport Observed Low||77|
|Rain: Sherman-Denison (NTRA)||0.00|
|Ardmore Observed Low||76|
|SunRise||July 22, 2017: 6:32 a.m.|
|SunSet||July 22, 2017: 8:34 p.m.|