Hurricane Hillary

Rain moving into Kelso, CA. from Hilary on Friday afternoon, August 18th.

Dave Hursey/NPS

Mojave National Preserve is bracing for major and historic flooding from Hurricane Hilary. Impacts could included high winds, extreme flooding, tornados, deadly lightning, landslides, washed out and washed over roadways. On Friday August 18, 2023, precipitation from Hilary began to move into the preserve. The roads in and through the preserve are currently closed due to the imminent threat of flash flooding. On Saturday, August 19, 2023, The National Weather Service predicted extreme rainfall conditions for Sunday and Monday. This is unprecedented in that extreme rainfall conditions have never been predicted for the area before. In addition, 50-100% of yearly rainfall totals could be met in less than 24-48 hours. Typical average rainfall for Mojave Preserve is anywhere form 3.37 to 8.5 inches per year.The majority of the rainfall is predicted to occur in Southeastern California and Nevada. There is also a 5-14% chance that the preserve could see tropical storm force winds, with a 2-4% chance of tornados. In the past twenty-four hours the track of Hurricane Hilary has changed slightly to a more northeastward movement, putting Mojave Preserve directly in Hilary's path. This is a dynamic weather event where changes in the forecast can change quickly. Up to date forecast can be found at the National Hurricane Center's website. This is a dangerous storm with potential deadly impacts. Seek shelter and do not drive unless it is absolutely necessary. The number one killer in weather events is drowning. Remember, Turn Around, Don't Drown!