The Los Angeles region is preparing for its first rainfall since devastating wildfires, bringing a mixture of relief and apprehension. While the rain is crucial for extinguishing the remaining fires and alleviating drought conditions, heavy downpours could trigger flash floods and debris flows in the fire-ravaged areas.
The Los Angeles area is bracing for its first rainfall since devastating wildfires ravaged the region weeks ago. While the rain is desperately needed to help extinguish the lingering flames and dampen dry soils, the potential for heavy downpours raises concerns about flash floods and debris flows . The fire weather alerts have been replaced with flood watches and winter storm warnings, particularly in the mountainous areas.
Rain is expected to begin gradually on Saturday with scattered showers before intensifying on Sunday and Monday. Sunday afternoon and evening could bring heavier rainfall, possibly accompanied by thunderstorms. The most significant risk stems from the burn scars left by the wildfires, which have weakened the soil and foundation, making them highly susceptible to debris flows. Light rainfall might have minimal impact, but prolonged and heavy rainfall could trigger hazardous debris flows.The National Weather Service estimates a 10% to 20% chance of significant debris flows within the LA County burn scars. The flood watches are specifically in place due to these fire-damaged areas. If the region manages to weather the next few days without any major debris flows, it would represent a positive outcome for the drought-stricken region. Forecasters predict total rainfall accumulation of less than an inch over the multi-day event, with a possibility of 1 to 1.5 inches in the San Gabriel and San Bernardino Mountains. There's also a chance for lightning, which could indicate heavier rainfall and potentially spark new fires. Up to 14 inches of snow is anticipated in the San Gabriel mountains, along with wind gusts reaching 45 mph. Sunshine is expected to return on Tuesday
Wildfires Rain Flood Risk Debris Flows Los Angeles California
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