Updated 915am CT – Tuesday / 04 September 2018
… Rain Chances Continue On and Off Over the Next Seven Days …
On the Weather Map…
On the surface map… tropical cyclone Gordon is over the northeastern Gulf of Mexico. A trough, or line, of surface low pressure extends from a Colorado low into New Mexico and far west Texas near El Paso. As a result of this surface weather pattern, our surface winds over south central Texas are light easterly.
On the upper air map… a broad trough of upper level low pressure is deepening a bit from central Canada to over the western half of the USA. Upper air high pressure, acting like a “lid” on the atmosphere, continues over the eastern part of the USA. As a result of this upper air weather pattern, the 30,000 foot winds over our local area are light and variable less than 10 mph.
What I am Seeing As I Look Ahead…
The upper level high pressure.. or the “lid” on the atmosphere that has been present over Texas this summer.. has weakened overhead as moist unstable air spreads into the area off the Gulf of Mexico.
As a result, a moist and unstable air mass will, over the next seven day period, produce scattered on-and-off rain shower and thunderstorm activity. Some gusty winds and, of course, dangerous cloud to ground lightning will accompany the stronger thunderstorms. NWS/Weather Prediction Center rainfall guidance suggests that we’ll see, on average, 1 to 3 inches of rain between and next Monday.
As the result of cloud cover and areas of precipitation, afternoon high temperatures will be, for the first time in a while, closer to seasonal averages.
Tropical cyclone Gordon will move ashore the Mississippi coast later tonight with little effect on our sensible weather across south central Texas.
Have a good Tuesday..
Meteorologist Troy Kimmel
Contact me:
tkimmel@austin.utexas.edu
troy@troykimmelweather.com
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@troykimmelwx (Twitter)
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Updated 845am CT… Tuesday / 04 September 2018
TODAY…. Morning low clouds.. otherwise partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 60% chance of rain; rainfall, where it occurs, will average 1/2 inch. High 93. Easterly wind 5 to 12 mph.
TONIGHT…. Partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 40% chance of rain; rainfall, where it occurs, will average 1/4 inch. Low 73. East southeasterly wind 4 to 8 mph.
WEDNESDAY…. Morning low clouds.. otherwise partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 50% chance of rain; rainfall, where it occurs, will average 1/2 inch. High 93. Easterly wind 5 to 12 mph.
WEDNESDAY NIGHT…. Partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 40% chance of rain; rainfall, where it occurs, will average 1/4 inch. Low 73. East southeasterly wind 4 to 8 mph.
THURSDAY…. Morning low clouds.. otherwise partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 40% chance of rain; rainfall, where it occurs, will average 1/4 inch. High 93. Light easterly wind.
THURSDAY NIGHT…. Partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 30% chance of rain; rainfall, where it occurs, will average 1/4 inch. Low 73. Southeasterly wind 4 to 8 mph.
FRIDAY…. Morning low clouds.. otherwise partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 40% chance of rain; rainfall, where it occurs, will average 1/4 inch. High 93. South southeasterly wind 5 to 12 mph.
FRIDAY NIGHT…. Partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 30% chance of rain; rainfall, where it occurs, will average 1/4 inch. Low 73. Southeasterly wind 4 to 8 mph.
SATURDAY…. Morning low clouds.. otherwise partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 40% chance of rain; rainfall, where it occurs, will average 1/4 inch. High 93. South southeasterly wind 5 to 12 mph.
SATURDAY NIGHT…. Partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 40% chance of rain; rainfall, where it occurs, will average 1/4 inch. Low 73. Southeasterly wind 4 to 8 mph.
SUNDAY…. Morning low clouds.. otherwise partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 40% chance of rain; rainfall, where it occurs, will average 1/4 inch. High 93. South southeasterly wind 5 to 12 mph.
SUNDAY NIGHT…. Partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 40% chance of rain; rainfall, where it occurs, will average 1/4 inch. Low 73. Southeasterly wind 4 to 8 mph.
MONDAY…. Morning low clouds.. otherwise partly to mostly cloudy with scattered rain showers and thunderstorms with an associated lightning risk. A 40% chance of rain; rainfall, where it occurs, will average 1/4 inch. High 93. South southeasterly wind 5 to 12 mph.
NATIONAL WEATHER SERVICE / 8 TO 14 DAY OUTLOOK
Valid Tuesday / 11 September 2018 through Monday / 17 September 2018…
Temperatures… Slightly Above Average
Precipitation… Above Average
AUSTIN SUNSET/SUNRISE TIMES…..
Sunrise this morning (04Sep)………………………………………. 7:10 am
Sunset this evening (04Sep)………………………………………… 7:50 pm
Sunrise tomorrow (05Sep)…………………………………………… 7:10 am
Sunset tomorrow (05Sep)……………………………………………. 7:48 pm