Updated 915am CT – Thursday / 27 April 2017
.. Another Sunny Day Ahead ..
.. A Stronger Cold Front with a Chance of Thunderstorms by Late Saturday ..
.. Cooler Temperatures Sunday into Monday ..
On this Thursday… an eastward moving cold front extends from the Great Lakes to along the Mississippi/Alabama state line then into the northwestern Gulf of Mexico off the Texas coast. Surface high pressure is located over east Texas. A deepening trough, or line, of low pressure extends southward through eastern Wyoming through eastern Colorado into eastern New Mexico and far west Texas. As a result of this surface weather pattern, our surface winds across south central Texas are light north northwesterly.
In the upper levels of the atmosphere, a deep trough.. or line of upper level low pressure.. is moving eastward over the central part of the USA. As a result of this upper air weather pattern, the 30,000 foot winds over south central Texas are westerly at 70 to 80 mph.
In the wake of the front last evening, we’ve seen a change to drier and more stable air. This will be very temporary as the front returns back north northwesterly over the area by later today into tonight as surface winds pick back up from the south with low level moisture quickly returning to the area.
As a dynamic area of upper air low pressure moves eastward through the southwestern USA into the southern and central plains by late tomorrow into Saturday, a stronger area of surface low pressure and associated cold front will advance quickly into Texas. The cold front will pass through the local area Saturday night. With abundant low level moisture in place along with instability and atmospheric lift accompanying the system, the latest guidance from the NWS/Storm Prediction Center suggests prefrontal thunderstorms over the area with stronger, potentially severe, thunderstorms mainly in areas to our north over north Texas and Oklahoma and areas eastward.
A drier.. more stable and a cooler air mass will move into Texas in the wake of the front for most of the day Sunday through Sunday night into early next week.
Another low pressure area and cold front will progress southeastward across the area late next Wednesday with another chance of rain showers and thunderstorms. Slightly cooler and drier air will advance into the area again by Wednesday night into Thursday.
Have a good Thursday….
Meteorologist Troy Kimmel
Contact me:
tkimmel@austin.utexas.edu
http://www.facebook.com/troykimmel
—
Updated 845am CT.. Thursday / 27 April 2017
TODAY…. Mostly sunny. High 86. Wind becoming south southeasterly wind 5 to 12 mph.
TONIGHT…. Mostly clear early with clouds increasing late. Low 68. South southeasterly wind 5 to 10 mph.
FRIDAY…. Becoming partly cloudy. Unseasonably warm with a high of 93. Southerly wind 8 to 15 mph with higher gusts.
FRIDAY NIGHT…. Partly cloudy early becoming cloudy late. Low 75. Southeasterly wind 5 to 12 mph.
SATURDAY…. Morning low clouds.. otherwise partly ro mostly cloudy with scattered afternoon rain showers and thunderstorms with an associated lightning risk. A 30% chance of rain; rainfall, where it occurs, will average 1/4 inch or less. High 89. Southerly wind 8 to 18 mph with some higher gusts.
SATURDAY NIGHT…. Mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 50% chance of rain; rainfall, where it occurs, will average 1/4 inch. Low 60. South southeasterly wind 8 to 15 mph with some higher gusts.. winds becoming more southwesterly after midnight then northwesterly toward daybreak as a cold front passes.
SUNDAY…. Mostly cloudy with widely scattered rain showers and thunderstorms before 7am with an associated lightning risk. A 20% chance of rain; rainfall, where it occurs, will average 1/4 inch or less. Clearing.. less humid and a little cooler morning through the afternoon. High 75. Northwesterly wind 8 to 15 mph with some higher gusts.
SUNDAY NIGHT…. Clear and unseasonably cool. Low 50. North northwesterly 5 to 10 mph.
MONDAY…. Sunshine. High 80. Northerly wind 5 to 10 mph becoming more east northeasterly by afternoon.
MONDAY NIGHT…. Clear. Low 58. Light easterly wind.
TUESDAY…. Sunny and warmer. High 86. Southerly wind increasing to 5 to 12 mph.
TUESDAY NIGHT…. Becoming mostly cloudy. Low 67. South southeasterly wind 5 to 12 mph.
WEDNESDAY…. Morning low clouds.. otherwise partly cloudy with scattered rain showers and thunderstorms with an associated lightning risk as a cold front passes by late afternoon. A 30% chance of rain; rainfall, where it occurs, will average 1/4 inch. High 85. Southerly wind shifting northwesterly 8 to 15 mph.
NATIONAL WEATHER SERVICE / 8 TO 14 DAY OUTLOOK
Valid Thursday / 04 May 2017 through Wednesday / 10 May 2017…
Temperature… Near to Slightly Below Average
Precipitation… Near Average
AUSTIN SUNSET/SUNRISE TIMES…..
Sunrise this morning (27 Apr)……………………………………………. 6:51 am
Sunset this evening (27 Apr)……………………………………………… 8:06 pm
Sunrise tomorrow (28 Apr)………………………………………………… 6:50 am
Sunset tomorrow (28 Apr)…………………………………………………. 8:07 pm