|Hilary’s Unusually High Flood Risk |
The National Hurricane Center warned of “significant and rare” flood impacts possible in Southern California and the Desert Southwest this weekend into Monday in their early Friday morning advisory for Hilary. And this morning, NOAA’s Weather Prediction Center issued a rare “high risk” in their excessive rainfall outlook for Sunday over parts of Southern California, due to Hilary.
According to NOAA, these “high risk” days only happen about 4% of days each year. But these high risk days account for 39% of all flood deaths and 83% of all flood damage in the U.S. each year.
A recently published study found rainfall flooding was the biggest killer from U.S. tropical cyclones over the past 10 years, accounting for 57% of deaths from 2013-2022.
This is a serious danger. Never drive into flood water. If you live near a mountain or burn area, be ready to evacuate at a moment’s notice in case of flooding or debris flows.