Parts of Arizona have been engulfed by monsoon weather this week, sending an apocalyptic-looking wall of dust across Phoenix.
The dust storm, called a haboob, limited visibility to near zero on Phoenix highways during the Monday commute, KSAZ reported.
The National Weather Service warned drivers it was "life-threatening" to travel, as dusts reached 50 to 70 mile an hour winds and temperatures topping 100 degrees Fahrenheit.
On Tuesday, a Union Pacific train derailed on the east side of Interstate 10, just north of Marana, Arizona.
Authorities say the derailment was caused by heavy rain from a monsoon storm in southern Arizona. Northwest Fire District officials said about 20 cars went off the rails, the Arizona Republic reports.
A Union Pacific train derailed on the east side of Interstate-10 just north of Twin Peaks Road in Marana, Ariz., Tuesday, July 10, 2018. Northwest Fire District officials say about 20 cars went off the rails as a strong storm was going through the Marana area near Interstate 10.
No injuries have been reported.
Today's satellite shows plenty of clouds and moisture across the region with a chance of heavy rain and flash flooding today. Look for a high today of 98° in #Phoenix. Expect below normal highs in Phoenix for the next 7 days. #TurnAroundDontDrown #AZWX pic.twitter.com/yzzDlH8OMH— NWS Phoenix (@NWSPhoenix) July 11, 2018