Tuesday, January 02, 2018

Mudslide danger looms in Southern California as fire threat diminishes

As firefighters gain control of Southern California wildfires, state and local officials are assessing burned slopes and culverts to try and prevent flash floods and mudslides that sometimes follow such fires.

In Ventura and Santa Barbara counties, public works crews are clearing debris basins and storm drains ahead of a rain event, something the area has seen little of this season.

Cold weather helped firefighters gain an upper hand on the Thomas Fire, the largest fire in California's recorded history, but what the fires leave behind is the next threat.

Forecasters say one storm with a lot of rain in a short amount of time is all it takes to start a mudslide.

Because of the burned hills, county officials expect any rain amount will produce twice the amount of water into flood channels. Work crews are cutting down dead trees and hauling away debris that could block drains and cause flooding.

After massive wildfires, rainwater typically does not soak into the ground but instead rolls down hardened soil -- taking with it ash, soot, dirt and debris, which creates fast moving mud flows.

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Δημοσιεύτηκε από Geo Kok στις Πέμπτη, 11 Φεβρουαρίου 2021
Δημοσιεύτηκε από Geo Kok στις Παρασκευή, 12 Φεβρουαρίου 2021
Δημοσιεύτηκε από Geo Kok στις Πέμπτη, 11 Φεβρουαρίου 2021
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