TIMING UPDATE: Overnight storms expected for the Brazos Valley

Storms now expected to arrive by 10-11pm (west) and 1-3am (east)
Published: Sep. 28, 2021 at 5:48 PM CDT|Updated: Sep. 28, 2021 at 7:03 PM CDT
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BRYAN, Texas (KBTX) - A disturbance moving through West Texas Tuesday evening brings the potential for much-needed rain to the Brazos Valley by early Wednesday morning. While this could be the most significant rain the area has seen this month, it is expected to wake many up before alarms are set to sound. Confidence in the rain chance is high, the timing of when storms reach the area will be highly dependent on how activity moves and forms west of I-35 through the evening hours.

Timing of these storms suggest initial impacts will be felt during the following time frames:

  • Northwestern & Northern Counties: 10pm - 12am
  • Central, Northeastern, Southwestern Counties: 11pm - 1am
  • Eastern Counties: 1am - 3am
Adjusted time line for rain and thunderstorm arrival late Tuesday into very early Wednesday
Adjusted time line for rain and thunderstorm arrival late Tuesday into very early Wednesday(KBTX)

UPDATED FORECAST: Considering storms developed further east and closer to I-35 than most forecast models projected through the day Tuesday, the timing of storm’s arrival has been significantly moved up. The confidence in rain and the expected impacts remain the same as earlier forecasts (listed below) -- but this now looks like an overnight event rather than an early morning / Wednesday commute mess.


Heavy rain, lightning, and gusty winds are expected with these storms. Under the biggest downpours, some minor and brief street flooding is possible just in time to slow down the morning commute. Wind gusts in excess of 30mph are likely with some of these storms -- with the strongest activity pushing an isolated 40 or 50 mph gust. Most storms are expected to remain below severe limits. If the timeline holds, rainy weather should clear most of the area by the morning drive.

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