DPS Sgt. Lonny Haschel said Monday the concern is the interstates refreezing as temperatures in North Texas are expected to fall into the 20s overnight.
Traffic on Interstate 45 south of Dallas on Sunday night and into Monday was at a virtual standstill for hours as accidents and tractor-trailers unable to climb steep grades blocked other vehicles.
Haschel says the backup on northbound lanes extended for at least 15 miles.
Motorists on Interstate 20 in East Texas also were stuck for hours.
The hazardous driving could extend to the Austin and Houston areas as winter weather advisories have been issued from Monday evening into Tuesday.
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