Updated 915am CT – Tuesday / 24 April 2018
… Cold Front Passes Wednesday and Again on Friday …
… Limited Rain Chances with Wednesday Cold Front …
On the Weather Map…
On the surface map… surface high pressure is over south Texas and the northwest Gulf of Texas. A low pressure area is over South Dakota with a cold front extending southward into northwestern Kansas then southwestward into southern Colorado and southern Utah. As a result of this surface weather pattern, our surface winds are light and variable.
On the upper air map… a trough, or line, of upper level low pressure is located over the Ohio and Tennessee Valley regions and covering the eastern half of the USA. Another upper level low pressure disturbance is located over the western Dakotas and eastern Montana and eastern Wyoming. As a result of the upper air weather pattern, the 30,000 foot winds over our local area are northwesterly 70 to 80 mph.
What I am Seeing As I Look Ahead…
The surface high pressure area and its associated clockwise wind flow, which is centered overhead, will move east of the area later today into tonight with the return to southerly surface wind and some increase in low level moisture and maritime tropical air off the Gulf of Mexico.
Tomorrow, a passing upper air low pressure will move from northwest to southeast across north Texas and Oklahoma. An associated cold front will move across the area by afternoon tomorrow with the upper air low pressure disturbance being a little slower in crossing over the area. While the system will be pretty dynamic, I still have real doubts about how much gulf moisture will be able to return in advance of the system so I will post only slim rain chances for tomorrow into tomorrow night, first associated with the front moving southeastward, and afterwards into tomorrow night as the upper air system completes its passage overhead.
A more stable weather pattern will prevail for the latter party of the week through the upcoming weekend. Another cold front will pass on Friday but it will only reinforce the air mass in place. Little in the way of sensible weather, other than a wind shift, is expected with the front on Friday.
Surface high pressure will once again move east of the area by late in the weekend into early next week with low level moisture, off the Gulf of Mexico, making a return to the area.
Have a good Tuesday..
Meteorologist Troy Kimmel
Contact me:
tkimmel@austin.utexas.edu
http://www.facebook.com/troykimmel
—
Updated 845am CT… Tuesday / 24 April 2018
TODAY…. Mostly sunny and warmer. High 88. Light wind becoming south southeasterly 5 to 10 mph by afternoon.
TONIGHT…. Partly cloudy. Low 59. Southeasterly wind 4 to 8 mph.
WEDNESDAY…. Partly cloudy with widely scattered rain showers and thunderstorms, with an associated lightning risk, as a cold front passes by afternoon. A 20% chance of rain; where rainfall occurs, it will average 1/4 inch or less. High 81. Light southerly wind becoming northerly 5 to 10 mph by afternoon as the front passes.
WEDNESDAY NIGHT…. Partly cloudy with scattered rain showers and isolated thunderstorms, with an associated lightning risk. A 30% chance of rain; where rainfall occurs, it will average 1/4 inch or less. Low 55. Northerly wind 5 to 10 mph.
THURSDAY…. Mostly sunny and less humid. High 79. North northwesterly wind 4 to 8 mph.
THURSDAY NIGHT…. Mostly clear. Low 55. Northeasterly wind 4 to 8 mph early becoming southeasterly after midnight.
FRIDAY…. Mostly sunny as a cold front passes in the morning. High 80. Northerly wind 5 to 10 mph.
FRIDAY NIGHT…. Mostly clear. Low 54. Light north northeasterly wind.
SATURDAY…. Mostly sunny. High 80. Northeasterly wind 4 to 8 mph becoming easterly by afternoon.
SATURDAY NIGHT…. Becoming partly cloudy. Low 57. Southeasterly wind 4 to 8 mph.
SUNDAY…. Partly cloudy. High 82. South southeasterly wind 5 to 10 mph.
SUNDAY NIGHT…. Partly cloudy early then low clouds late. Low 61. Southeasterly wind 5 to 10 mph.
MONDAY…. Morning low clouds otherwise partly cloudy. High 83. South southeasterly wind increasing to 8 to 15 mph.
NATIONAL WEATHER SERVICE / 8 TO 14 DAY OUTLOOK
Valid Tuesday / 01 May 2018 through Monday / 07 May 2018…
Temperatures… Above Average
Precipitation… Slightly Above Average
AUSTIN SUNSET/SUNRISE TIMES…..
Sunrise this morning (24 April)………………………………………. 6:54 am
Sunset this evening (24 April)………………………………………… 8:04 pm
Sunrise tomorrow (25 April)…………………………………………… 6:53 am
Sunset tomorrow (25 April)……………………………………………. 8:05 pm