As a slow-moving upper-level low approaches from the west, its energy will combine with plentiful moisture, increasing chances for heavy downpours and high rainfall accumulation rates.
At the surface, moisture will pool along a lifting warm front by the end of the week and into the weekend. The upper-low will provide plenty of lift, creating heavy rainfall with the amount of deep moisture available.
The Weather Prediction Center has highlighted portions of Texas, Oklahoma, and Louisiana on Friday and Saturday with a Level 2 Slight Risk of excessive rainfall. These outlooks will likely be tweaked in the coming days, with an upgrade not out of the question.
This entire area has been unusually dry over the last few weeks. San Antonio, for example, has not measured any amount of rain so far this October! This incoming system will most certainly put an end to that!
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