Stormy Outlook for Burn-Scarred Los Angeles as Atmospheric River Brings Heavy Rainfall
California's historic wildfire season may be nearing its end, but the arrival of an atmospheric river this week is bringing new concerns. The storm, which hit California on Wednesday, has forecasters predicting "periods of moderate to heavy rain" in the coming days, with up to 2 inches (5.1 cm) of rain expected across Los Angeles and surrounding areas by Friday.
However, officials are urging residents of burn-scarred Los Angeles to evacuate as the deluge creates a risk of flash flooding and mudslides. The warning will remain in effect from Thursday evening to Sunday morning. This is because the intense heat from wildfires has left behind burn scars that can be as water repellent as pavement, making it easier for rainwater to reach the ground.
As plants burn, they release a waxy substance that solidifies on the top layer of soil, causing it to become hydrophobic. Loss of plants also destabilizes the soil, making it more susceptible to flash flooding and mudslides. This is why officials are taking evacuations seriously, as even small amounts of rainfall can trigger these hazards in burn scars.
The storm is expected to intensify on Thursday night and Saturday, bringing heavy rain to Southern California. Meteorologists expect nearly the entire state to receive precipitation, but forecast models suggest it could stall over Southern California, potentially delivering more rain than initially predicted.
While there's uncertainty around the current forecast, experts are hopeful that this storm could bring an end to the 2025 fire season. Climate change has made wildfires a year-round phenomenon in California, and experts consider this November storm to be crucial in reducing fire risk across the state.
According to studies, it takes about a third of an inch of rainfall over three days to mitigate wildfire risk in Southern California. Julia Kalansky, a Scripps climatologist, noted that this storm has the potential to significantly reduce fire risk, helping to prevent another winter disaster.
The outcome of this storm remains to be seen, but one thing is certain: it highlights how interconnected California's extreme weather hazards have become. The best-case scenario is a marked reduction in wildfire risk with minimal flooding, landslides, and infrastructure damage.
California's historic wildfire season may be nearing its end, but the arrival of an atmospheric river this week is bringing new concerns. The storm, which hit California on Wednesday, has forecasters predicting "periods of moderate to heavy rain" in the coming days, with up to 2 inches (5.1 cm) of rain expected across Los Angeles and surrounding areas by Friday.
However, officials are urging residents of burn-scarred Los Angeles to evacuate as the deluge creates a risk of flash flooding and mudslides. The warning will remain in effect from Thursday evening to Sunday morning. This is because the intense heat from wildfires has left behind burn scars that can be as water repellent as pavement, making it easier for rainwater to reach the ground.
As plants burn, they release a waxy substance that solidifies on the top layer of soil, causing it to become hydrophobic. Loss of plants also destabilizes the soil, making it more susceptible to flash flooding and mudslides. This is why officials are taking evacuations seriously, as even small amounts of rainfall can trigger these hazards in burn scars.
The storm is expected to intensify on Thursday night and Saturday, bringing heavy rain to Southern California. Meteorologists expect nearly the entire state to receive precipitation, but forecast models suggest it could stall over Southern California, potentially delivering more rain than initially predicted.
While there's uncertainty around the current forecast, experts are hopeful that this storm could bring an end to the 2025 fire season. Climate change has made wildfires a year-round phenomenon in California, and experts consider this November storm to be crucial in reducing fire risk across the state.
According to studies, it takes about a third of an inch of rainfall over three days to mitigate wildfire risk in Southern California. Julia Kalansky, a Scripps climatologist, noted that this storm has the potential to significantly reduce fire risk, helping to prevent another winter disaster.
The outcome of this storm remains to be seen, but one thing is certain: it highlights how interconnected California's extreme weather hazards have become. The best-case scenario is a marked reduction in wildfire risk with minimal flooding, landslides, and infrastructure damage.