Heat Index Temperatures continue to make the headlines here in South Texas

Saturday Weather 7-31-21

 


VICTORIA
, Texas-Tonight: Mostly clear skies with light winds while temperatures stay around average.  Low: 77 degrees. Winds: SE 5-10 mph.  A 10% chance of scattered showers and thunderstorms.  

Sunday
: Partly sunny skies with light winds while temperatures stay around average.  High: 94 degrees. Winds: SW 5-10 mph. A 20% chance of showers and isolated thunderstorms. Heat Index Temperatures could reach 108 degrees. 

Sunday NightPartly cloudy skies with light winds while temperatures stay around average.  Low: 76 degrees. Winds: SE 5-10 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: SW 5-10 mph. A 30% chance of showers and thunderstorms.  

Monday Night: Mostly cloudy skies with light winds while temperatures stay around average.  Low: 76 degrees. Winds: SE 5-10 mph/Calm after Midnight. A 30% chance of scattered showers and thunderstorms.  

Extended ForecastTuesday through Sunday

Tuesday: Partly cloudy skies with light winds while temperatures stay around average.  High: 92/75 degrees. Winds: NW 5 mph. A 40% chance of showers and scattered thunderstorms. 

Wednesday: Partly cloudy skies with light winds while temperatures stay below average.  High: 89/74 degrees. Winds: NE 10 mph. A 40% chance of showers and thunderstorms.

Thursday: Partly cloudy skies with light winds while temperatures stay below average.  High: 89/75 degrees. Winds: E 10 mph. A 40% chance of showers and thunderstorms.    

Friday: Partly sunny skies with light winds while temperatures stay below average.  High: 91/76 degrees. Winds: SE 10 mph. A 30% chance of showers and thunderstorms.   

Saturday: Mostly sunny skies with light winds while temperatures stay below average.  High: 93/76 degrees. Winds: SE 10 mph. A 20% chance of showers and thunderstorms.   

Sunday: Mostly sunny skies with light winds while temperatures stay below average.  High: 93/77 degrees. Winds: SE 10 mph. A 30% chance of showers and thunderstorms.  

Synopsis: A trough over the Central Gulf of Mexico will progress toward the west (from the east) through the day on Saturday.  Moisture levels stay on the high side, combined with increasing upper-level development for lift, will support another 20-40 percent chance of showers and thunderstorms along the Coastal Bend on Saturday.  Cloud development (convection and potential rain) is not expected to bring much relief from the heat with maximum heat indices of 105-109 degrees expected again today (Saturday).  The trough (mid-level) out over the Gulf should drift west across South Texas on Sunday, while moisture levels remain high on the eastern side of the viewing area.  A storm CAP (inversion layer, temperatures increase with height) will hinder rain chances (20-30 percent) across Victoria with the most vulnerable areas for rain being in the weakest areas of the cap where the highest levels of moisture are present.  Similar conditions are expected for Monday while the trough slides off to the west of the viewing area.  Monday night into Tuesday a high-pressure ridge will build across South Texas while a strengthening low-pressure system near the Great Lakes moves southward across East Texas.  This will lead to airflow out of the northwest that will push a weak cold front through Texas and toward the viewing area.  This weak boundary will stall, probably short of the viewing area depending upon where the center of the high-pressure is, to allow the boundary to make it into South Texas.  Winds will shift slightly on Tuesday morning across the viewing area.  Either way, rain chances are expected to increase on Tuesday across the northern part of the viewing area due to either the weak cold front or due to possible air flowing out from the storms in Central Texas.  The weak low-level convergence, combined with weak short waves, along with high moisture values and an unstable airmass will be conducive for scattered storms. Similar conditions are expected to continue into Wednesday as well.  Additional short waves, sufficient moisture and instability will maintain a chance for convection through the end of the work week. Heat indices ranging from 105-109 degrees are expected each afternoon with some areas briefly reaching 110-112 degrees.  Thus, there is the potential for Heat Advisories at times through the extended forecast.