Updated 130pm CDT Thursday / 5 July 2012
…. A Stable Upper Level High Pressure Continues over the Area ….
…. Above Average High Temperatures Expected to Continue ….
…. A More Unstable Air Mass and Rain Chances by the Weekend/Next Week ….
On this Thursday… a surface high pressure area is located over the southeastern USA and to the west over the southwestern states. A trough.. or line.. of surface low pressure extends southward from southeastern Colorado and southwestern Kansas southward through eastern New Mexico and west Texas. As a result of this pressure pattern, a southerly surface wind is prevailing across our area.
In the upper levels of the atmosphere, the upper high pressure ridge, acting like a lid on the atmosphere, continues broadly across our area. As a result of the upper air wind flow, the upper level winds are light and variable over our area.
The upper level high continues over the area, especially north of the area, and this will resulting in a fairly stable weather pattern across south central Texas. Over the coming days, we’ll see late night and early morning low clouds along with a little more sunshine and the above average afternoon high temperatures. Isolated afternoon rain showers and thunderstorms are, of course, possible this time of year although the chance of rain at any given point in our forecast area over the next two days is below 10%; as a result, I will not mention in the forecast.
There continues to be indication of a more unstable air mass along with the a little more influence off the Gulf of Mexico by the weekend into the first half of next week. I will include rain chances beginning Saturday and continuing through early next week. At this point, forecast rainfall amounts are at or less than 1/4 inch.
For Austin and south central Texas… tonight will be partly cloudy early with low clouds late with lows in the 70s. Southerly wind. For tomorrow, morning low clouds will give way to a partly cloudy sky with highs in the 90s. Southerly wind.
Have a good Thursday night and Friday…
Meteorologist Troy Kimmel