Weather

Aug 29, 2014 11:08 PM by Rob Perillo

Flash Flood Watch For All Of Acadiana

A Flash Flood Watch is in effect for all of Acadiana through Saturday evening in response to a tropical disturbance in the Northwestern Gulf of Mexico that will move inland into Southern Louisiana through Saturday.

Very high moisture content associated with this disturbance will likely lead to showers and locally heavy storms that will be capable of producing 2-3" of rain per hour.

And wherever heavier storms repeat, or "train" over the same spots, localized amounts of 3-5" or more will be likely.

KATC's RPM Model has been consistently pointing to rainfall area-wide to be in the 2-4" range with isolated hot spots up to 8". This appears to be likely, however pin-pointing where the heaviest rains occur remains difficult as there are no surface focusing mechanisms.

Nonetheless, heavy rainfall will likely lead to localized flooding and run-off issues.

Prime-time for the heavier storms will likely be pre-dawn hours Saturday through Saturday afternoon, with activity tapering toward the evening hours.

Most of the deep tropical moisture will be supplanted by more stable air Sunday with the risk of storms remaining in the forecast, but activity is expected to be more scattered in nature through Labor Day with heat turning back up by the end of the holiday weekend period.

Latest RPM as of Friday 10pm:

24 Hour Forecast:

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