By: Stephen McCoy
Today's update brings a major shift in conditions from the initial forecast on Monday. The models from earlier in the week were indicating that an upper level trough, which is driving the current activity in the South Central US, would continue eastward into the southeast US and into the Atlantic to round out the week. However, in the following days, the models have trended towards a shortwave trough breaking off from the current longwave trough and centering itself over Texas/Mexico. The trough will extend into the lower levels of the atmosphere, where winds from the south/southwest will bring plenty of moisture to the region. The result is likely chances for rainfall, especially overnight Friday into Saturday.
Friday and Saturday will see cooler temperatures through the day after a cold front passes through the region on Thursday. Surface winds behind the front will largely be from the north on Friday, but will begin shifting to the east/northeast as an area of high pressure moves in over the Arklatex region. Low level winds from the east/southeast will bring in moisture off the Gulf, causing mostly cloudy to overcast skies through the day. These conditions are expected to persist into Saturday, along with an increased chance for precipitation.
A slight chance for lingering showers is possible Sunday morning, but as the upper level trough begins moving eastward, drier conditions will move in. Partly cloudy skies will be present for much of the day after sunrise with temperatures at their highest of the weekend due to surface winds largely from the south.
Friday and Saturday will see cooler temperatures through the day after a cold front passes through the region on Thursday. Surface winds behind the front will largely be from the north on Friday, but will begin shifting to the east/northeast as an area of high pressure moves in over the Arklatex region. Low level winds from the east/southeast will bring in moisture off the Gulf, causing mostly cloudy to overcast skies through the day. These conditions are expected to persist into Saturday, along with an increased chance for precipitation.
A slight chance for lingering showers is possible Sunday morning, but as the upper level trough begins moving eastward, drier conditions will move in. Partly cloudy skies will be present for much of the day after sunrise with temperatures at their highest of the weekend due to surface winds largely from the south.
