SATURDAY, JULY 23, 2016
PARTLY CLOUDY AND HOT THROUGH TOMORROW WITH A SLIGHT CHANCE OF ISOLATED THUNDERSHOWERS
MOSTLY CLOUDY ON MONDAY WITH SCATTERED SHOWERS OR THUNDERSTORMS
Partly cloudy and hot today with a 20% chance of isolated showers or thunderstorms near the coast early and inland during the afternoon hours. High temperatures will range from the low-90's in Galveston to the mid-90's on the mainland. Look for southerly winds at 5-10 mph
Partly cloudy and mild tonight with a 20% chance of thundershowers after midnight. Overnight lows will be near 80. Look for southerly winds at 5-10 mph.
Partly cloudy and hot tomorrow with a 30% chance of showers or thunderstorms. Highs will range from the low-90's in Galveston to the mid-90's on the mainland. Expect southerly winds at 5-10 mph.
On Monday, we anticipate mostly cloudy skies with a 60% chance of showers or thunderstorms early, decreasing to a 50% chance later in the day. Highs will be in the upper-80's. Look for southeast winds at 5-10 mph.
SYNOPSIS AND OUTLOOK
Partly cloudy skies and seasonably hot temperatures will prevail through tomorrow with a slight chance of isolated thundershowers as high pressure continues to dominate our area. Rain chances will begin increasing tomorrow into Monday as the high pressure shifts west and deeper Gulf moisture flows into the area.
This morning we continue to see a somewhat stagnant weather pattern with high pressure over Florida and Tennessee and low pressure over southern Nevada. To the north and west, an elongated and slow moving cold front extends all the way from southern Nevada to a low in western North Dakota. The frontal boundary then continues on east across the Upper-Midwest and southern Great Lakes to the Atlantic coast of New England. High pressure sits behind the front over Idaho and western Montana.
At the upper-levels, we continue to see little change with a broad low pressure trough off the East Coast, a large high pressure ridge extending east from the Pacific through the Desert Southwest to Oklahoma, Kansas and the northern Plains. Far to the east, a low pressure trough is situated in the Atlantic off the coast of South Carolina, while far to the northwest, a low pressure trough is tracking east through Washington, Oregon and Idaho.
Hot temperatures and a slight of rain will gradually give way to increasing clouds and rain chances as as the upper-level high weakens and shifts west, allowing Gulf moisture to drift in from the east along with weak mid and upper-level disturbances. Best rain chances will be from late Sunday into Tuesday.
Tropical storm development is not expected in the Tropical Atlantic Basin at this time.