Question concerning duststorms

[Christina514]

Could someone please tell this Yankee why you would turn off your headlights ??

A DUST STORM WARNING IS ISSUED WHEN WINDS HAVE GENERATED LARGE
AREAS OF BLOWING DUST OR BLOWING SAND THAT HAVE SUBSTANTIALLY
REDUCED VISIBILITIES...TO 1/4 MILE OR LESS...RESULTING IN
HAZARDOUS DRIVING CONDITIONS IN SOME AREAS. MOTORISTS ARE
ADVISED TO USE CAUTION AND SLOW DOWN...AS OBJECTS ON AND NEAR
ROADWAYS WILL BE SEEN ONLY AT CLOSE RANGE. IF YOU ENCOUNTER
BLOWING DUST ON THE ROADWAY OR SEE IT APPROACHING...PULL OFF THE
ROADWAY AS FAR AS POSSIBLE AND PARK. TURN OFF THE LIGHTS AND
KEEP YOUR FOOT OFF THE BRAKE PEDAL.

[Christina514]

Ok now it makes sense....
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In the past, motorists driving in dust storms have pulled off the roadway, leaving lights on. Vehicles approaching from the rear and using the advance car's lights as a guide have inadvertently left the roadway and in some instances collided with the parked vehicle. Make sure all of your lights are off when you park off the roadway.

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http://www.nws.noaa.gov/om/brochures/duststrm.htm