Hot Times for Texoma

FINAL UPDATE: Thu 27 May 2010 / 3:20p.m.

Very little has changed; slightly drier air on an east to northeast wind flow will make for pleasant conditions during the evening and morning hours. An upper ridge should provide stable skies through Sunday afternoon.

It will be quite hot each day with highs in the 90-94 degree range. A chance of thunderstorms shows up by Sunday night as a trough pushes a front our way. (see new map just below).


Upper trough (dashed black line) and a deeper low to north (blue "L" along Canadian border) may push a front near us by Sunday night.


UPDATE: Wed 26 May / 10pm

The forecast remains the same: hot and humid with no rain expected Fri-Sat, and still a question for Sun-Mon as a front heads our way.



UPDATE: Tue 25 May 2010 / 3:35p.m.

A weakness developed in the mid-level flow since Monday's blog. This will contribute to a chance of rain. A weak front moving in Thursday will continue a rain prospect in the 20% range. I have nice weather for Friday and Saturday under the ridge shown on the map below.

The models weaken the ridge by Sunday so the threat of rain may slowly increase for the second half of he Holiday weekend.




UPDATE: Mon 24 May 2010 / 3:35p.m.

Little change to my blog from last Thursday; a weak front should stall to our west mid-week, which keeps the rain chances over western OK/TX. A second one Friday has a chance to reach Texoma. However, an upper ridge aloft (map) suggests the frontal lifting will fight against the sinking under the ridge, so I'm only putting a 20% chance for showers Friday.

Disclaimer: Tn unforeseen weakness in the ridge would allow for isolated showers this week. Since the odds of any one point getting rain are extremely low, I have not put it in the forecast.

Our first heat wave of 2010 will take us well into the last week of May with windy, hot, and humid conditions.
The map above shows a typical pattern for heat: a strong upper ridge developing. Since the center of the ridge will be to our east, it won’t be as hot as it would be if it was overhead.
Many of the record highs (which are around 100 this time of year) are set when we have a southwesterly surface flow and a ridge nearby.
I expect the flow to more southerly. This will bring plenty of Gulf moisture through Texoma. A fairly tight pressure field will also lend to rather windy conditions through early next week. So we’ll probably have early morning cloud cover with partly cloudy, windy and hot afternoons.
Day to day wind speeds may vary as a low pressure ebbs and flows to our north. The storm track should be deflected well to our north by this ridge. So it will be a much different pattern than we’ve seen the past couple of weeks.
While an isolated shower could pop up with daytime heating, rainfall prospects are too low to include in the forecast at this time.
Take Care,
Steve LaNore
Chief Meteorologist


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  • by roy Location: kingston on May 26, 2010 at 01:13 PM
    Thanks Steve that is good advice have a great day.
  • by Steve LaNore Location: KXII-TV on May 26, 2010 at 10:03 AM
    Gee guys, I appreciate your plant questions but I'm much more dangerous than an expert in this area. I kill or at least traumatize most of the green things I try to grow! The one thing I do know is if you have newly planted trees water them at least twice a week if you're not getting rain. I was stingy with one in 2007 and it still looks a little dwarfy because of that -:) So if you want GOOD advice here I would recommend calling or stopping by your nursery...or search for it on the Web. Take Care, Steve
  • by Brandon Location: Sherman on May 26, 2010 at 07:11 AM
    High pressure still strong over Texoma. Looks like the hot dry weather for the most part with the exception of a little shower/storm here or there, the next significant weather even appears to be the middle of next week. It's early so its hard to tell, but GFS model hasn't changed a lot on that forecast... Roy I'm NO TREE expert at all, but I would say a little water with it being more dry for the next week to come wouldn't hurt them, but I'm not really sure. Not sure if Steve knows anything about trees or not...
  • by roy Location: kingston oklahoma on May 25, 2010 at 08:42 PM
    planted my cherry trees in mid march they are healthy when i scrape the soil it still seams moist to me i wish i knew how long it would be befor i need to start to give them water
  • by roy Location: kingston okklahoma on May 25, 2010 at 08:26 PM
    steve i have newly planted trees should i water now or do you think we still have enough moister in the ground 12 inch tall trees
  • by Steve LaNore Location: KXII-TV on May 22, 2010 at 03:11 PM
    Brandon, The high will "wobble" around a bit; however the bottom line is a subsident (sinking) air mass makes any meangingful rainfall unlikely...and temps will continue above normal. A weak front Tuesday bears watching but it looks like the steering winds will stall it to our west. Take Care, Steve
  • by Brandon Location: Sherman on May 22, 2010 at 07:24 AM
    This will be a hot one for sure! This ridge is strong and doesn't look like it will be kicking out for awhile! Doesn't look like the high pressure will move until the first week of June? What do you think Steve?
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