Follow-Up: South Texas Rain Continues as Weather Prediction Center Keeps Slight Risk of Excessive Rainfall Through Early Monday, November 9; Local Totals to 8 Inches
The National Weather Service Weather Prediction Center (WPC) in College Park, Maryland, kept a Slight Risk (level 2 of 4) of excessive rainfall across south-central and South Texas in its November 8 discussion, valid 12Z November 8 to 12Z November 9 (6 a.m. CST Sunday to 6 a.m. CST Monday). The highest threat lies in the area from Webb County toward Corpus Christi, where the center retained its "enhanced" Slight Risk wording and said a targeted upgrade was possible.
The center said the REFS blended mean quantitative precipitation forecast is a widespread 3 to 6 inches, with as much as 8 inches locally during the full period, at peak rates generally between 1 and 2 inches per hour. Neighborhood probabilities for more than 3 inches remain at 60 to 90 percent over much of South Texas, mainly south of I-10. Despite fairly high flash flood guidance thresholds, the center said the longevity of the convective pattern gives the area a better-than-normal opportunity for flash flooding, with the best chances late Sunday afternoon and evening into early Monday morning.
Earlier, the Corpus Christi forecast office issued a flood watch on Friday evening, November 6, running through Monday morning, and issued the event's first flash flood warning at 5:04 a.m. CST Sunday for southwestern Duval County and southeastern Webb County, valid until 8 a.m., after 1 to 3 inches of rain had fallen there, with 2 to 4 more inches possible.
Source: National Weather Service Weather Prediction Center
Published by GSM · USA (original Chinese edition)
Photo: 天气预报中心11月8日发布的24小时定量降水预报图（有效期至11月9日12时UTC）WPC 24-hour Day 1 QPF issued November 8, 2026 — NOAA/NWS, Public Domain
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