Here Comes Another Round of Potentially Heavy Rain

posted by Jim Forsyth - 

FROM THE NATIONAL WEATHER SERVICE:

Continued chances for rainfall across the area will bring localized Flash Flooding to the area.

Area of Concern: All of South-Central Texas, but especially along and west of I-35

 Threats & Impacts:Rainfall:  1-3 Inches on average with isolated locations reaching in excess of 7 inches

Timing and Overview: A slow moving cold  front will enter the Rio Grande Plains and Hill Country Friday afternoon  and bring with it a chance for rain for all of South-Central Texas  through the weekend. The atmosphere will be very moist and support high rainfall rates. There will be a lack of upper  support for continuous widespread rainfall, but with the frontal  boundary localized heavy rain can be expected. It is tough to pinpoint  the exact locations of the heavier rainfall, but the isolated spots will be favored for areas west of I-35 in closer  proximity to the front. A quick 4-7 inches will be possible which could  lead to flash flooding within the isolated areas. If confidence  increases for specific locations, a Flash Flood Watch could be issued at a later time.

 Impacts: Several  locations may experience moderate flooding with flood waters capable of  causing rivers and tributaries to become swollen and overspill their  banks mainly in historically vulnerable places.  Small streams, creeks, canals, and ditches overflow with some low lying  structures flooded.  Inundation occur at underpasses, low-lying spots,  and poor drainage areas. Some streets and parking lots take on moving  water.  Storm drains and retention ponds overflow. Flood waters may prompt several evacuations and road closures.

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