Showers Predicted To Continue Through Week
A weak mid-summer cold front was heading toward East Texas Wednesday afternoon, promising scattered showers and thunderstorms for much of the region late Wednesday night and on Thursday.
At late-afternoon Wednesday, the front had reached Southeast Oklahoma. It is forecast to become stationary along or just north of the IH-20 Corridor Thursday, and retreat back northward as a warm front Thursday night.
Another front is forecast to reach the IH-20 Corridor Sunday morning, with yet another chance for showers and thunderstorms at that time.
There were a few isolated showers over the southern counties Wednesday afternoon in response to the sea-breeze front. One of these, near Henderson, became severe at mid-afternoon.
A severe thunderstorm warning was displayed for Rusk County. Along and north of the IH-30 Corridor, showers and thunderstorms were numerous in advance of the cold front.
Wednesday’s temperatures ran near Tuesday’s, and were near normal. Slightly lower temperatures are forecast for Thursday, with readings back to normal Friday, and slightly above normal on Saturday.
Low readings Wednesday morning were from near 70 in the southeast to the middle 70s across the west.
Temperatures Thursday morning should be a few degrees lower across the north, with 70-degree readings for the remainder of the area.
Low temperatures on Friday and Saturday mornings should be in the 70s throughout the area. Afternoon temperatures Wednesday were in the middle 80s across the north near showers to the high 90s in the southwest. High 80 to low 90-degree readings are likely Thursday, with 90-degree readings Friday and temperatures approaching 100 over the western counties Saturday.
Winds on Wednesday were southerly at 5-15 mph. Thursday’s winds should be light and southerly from IH-20 southward, and light and northeasterly to easterly from IH-20 northward.
By Friday, winds will return to a southerly direction across the entire region with velocities increasing to the 10-20 mph range.
The sea-breeze front became unusually active late Tuesday evening as its western edge intersected a zone of weakness in the upper air high pressure ridge.
The result was an area of showers and thunderstorms running from Houston and Anderson Counties through western Smith, Van Zandt, and Kaufman Counties into Collin County. Coverage was about 40 percent, and amounts were generally one-fourth inch or less.
Pounds Field picked up 0.05 inch around 9 p.m. A peak wind gust of 30 mph preceded the thunderstorm. Lightning was visible in the city, but rain did not fall.
Rainfall reports of one-half inch or greater from area stations were: Terrell City 0.95, McKinney Airport 0.95, and Ratcliff Forest Service 0.50. Tuesday was the second consecutive day for significant rain at Ratcliff; 0.54 inch fell Monday afternoon.
Tyler’s highest sustaining wind Wednesday was southwesterly at 8 mph with a peak gust of 10 mph and an average velocity of 4.7 mph. Tuesday’s average wind velocity was 5.6 mph.
Wednesday’s average relative humidity was 66 percent, with higher values likely Thursday, and lower values Friday and Saturday. Tuesday’s average was 63 percent.
Tyler’s high temperature of 94 came at 4:54 p.m., following the day’s low of 73 at 6:29 a.m.
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