Heat Advisory Until 7 pm Sunday with Heat Index Values from 110-114 degrees

Sunday Weather 8-1-21 

 

 

VICTORIA, Texas-: Tonight: Partly cloudy skies with moderate winds while temperatures stay around average.  Low: 77 degrees. Winds: SE 10-15 mph.  A 20% chance of scattered showers and thunderstorms.

Monday: Partly sunny skies with light winds while temperatures stay around average.  High: 95 degrees. Winds: SE 5-10 mph. A 30% chance of showers and thunderstorms. Heat Index Values/Temperatures will be near 112 degrees.

Monday Night: Mostly clear skies with light winds while temperatures stay around average.  Low: 76 degrees. Winds: SE 5 mph. A 40% chance of scattered showers and thunderstorms.

Tuesday: Partly cloudy with light winds while temperatures stay below average.  High: 92 degrees. Winds: NW 5 mph. A 60% chance of showers and thunderstorms being likely early.

Tuesday Night: Mostly cloudy skies with light winds while temperatures stay around average.  Low: 75 degrees. Winds: SE 5 mph. A 60% chance of scattered showers and thunderstorms.

Extended ForecastWednesday through Monday:

Wednesday: Partly cloudy skies with light winds while temperatures stay below average.  High: 91/75 degrees. Winds: SE 5 mph. A 60% chance of showers and thunderstorms.

Thursday: Partly cloudy skies with light winds while temperatures stay around average.  High: 91/75 degrees. Winds: SE 5 mph. A 60% chance of showers and thunderstorms.

Friday: Partly sunny skies with light winds while temperatures stay below average.  High: 92/76 degrees. Winds: SE 10 mph. A 30% chance of showers and thunderstorms.

Saturday: Partly sunny skies with moderate winds while temperatures stay below average.  High: 93/77 degrees. Winds: SE 15 mph. A 20% chance of showers and thunderstorms.

Sunday: Partly cloudy skies with moderate winds while temperatures stay below average.  High: 93/78 degrees. Winds: S 10 mph. A 20% chance of showers and thunderstorms.

Monday: Partly cloudy skies with light winds while temperatures stay around average.  High: 94/78 degrees. Winds: SE 15 mph. A 20% chance of showers and thunderstorms.

Synopsis: We start out Sunday under the control of the upper-level high-pressure ridge, but we will start to see this feature shift back to the northwest as a weak inverted trough takes shape across the southern Gulf and the trough across the Midwest begins to drop down to the south.  Once again, isolated showers and storms will be possible on Sunday as the sea breeze moves inland.  However, drier air in the mid-levels will keep coverage on the low end.  Throughout the day on Sunday, a cold front (boundary) will be sent south across the state but will remain well north of the region during the short term. Another hot day is on tap for Sunday with temperatures in the low 90’s to just over 100 degrees.  Heat Indices will generally range from 105-109 degrees in the afternoon.  A few locations may briefly reach Heat Advisory criteria at times.  Ahead of the cold front boundary, there will be a cluster of convection developing across the Hill Country as a short-wave rounds the base of the trough Sunday night.  This activity will gradually drift Sunday night into Monday morning leading to increased rain chances as we start the work week.  In the long term for the extended period, days 3 to 7, Monday through Saturday, the period begins with the mid-level ridge of high-pressure retreating westward as a long-wave trough strengthens over the eastern part of the continental United States. This trough is expected to extend southward into the region bringing along a frontal boundary.  Although the actual boundary is expected to stall north of the area, a pre-frontal trough may move into the region Monday night into Tuesday leading to increased chances for showers and thunderstorms. In addition, pockets of deeper moisture will move over the region at the same time some atmosphere weaknesses track across the eastern periphery of the high-pressure ridge.  The combination of these factors will be expected to contribute to isolated to scattered showers (convection) daily Monday through Wednesday, with the highest chances expected Monday night into Tuesday (this period). By the latter part of the week drier air filters into South Texas as high-pressure builds in the upper atmosphere, thus diminishing convective storm/rain chances.  However, enough moisture may remain present across the area for isolated thunderstorms to develop, particularly along the sea breeze.  Temperatures are forecast to be a few degrees cooler Monday through Thursday due to the increased cloud cover and rainfall potential.  But, by the end of the week we should bounce back to warmer temperatures.  Highs will generally range in the 90’s to the lower 100’s, with overnight lows in the mid to upper 70’s.  There is nothing in the way over the next 48-hours (and 5-days) for tropical depression (storm) development.