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A weatherman's woe: Forecasters were struggling Wednesday to pin down the exact timing, location and rainfall totals, according to the National Weather Service. The storm is difficult to predict because it's a low pressure system that has detached from the more predictable jet stream. The uncertainty means some places, such as Ventura County, could see as much as 5 inches of rain, while L.A. County receives just one. It will all depend on how fast the storm moves through and if it parks over a particular area.

Debris flows possible: Rainfall rates could reach 1 inch per hour — which exceeds the threshold for triggering post-fire debris flows. If you live in or around a hilly area that recently burned, you should be ready to evacuate just to be safe. L.A. County officials have

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