The threat of severe weather for Gwinnett is looming again.
The low Thursday night is forecast to be about 28 degrees. An Arctic air mass and moisture moving into the area is blamed.
The NWS hazardous weather outlook reads in part:
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA. ... THURSDAY THROUGH TUESDAY... AN ARCTIC AIRMASS WILL BE MOVING INTO THE EASTERN HALF OF THE UNITED STATES ON THURSDAY SETTING UP A COLD AIR WEDGE ACROSS NORTH AND CENTRAL GEORGIA. AT THE SAME TIME MOISTURE FROM THE WEST AND SOUTHWEST IS EXPECTED TO RISE UP AND OVER THE COLD AIR AT THE SURFACE. THE COMBINATION OF THESE INGREDIENTS WILL SET THE STAGE FOR POSSIBLE FREEZING RAIN AND SLEET OVERNIGHT THURSDAY NIGHT THROUGH FRIDAY MORNING.
The wintry threat should end by the weekend. Forecasts call for sunny weather and a high near 47 on Saturday.
Still, the threat would present problems for commuters as well as school buses carrying students to Gwinnett schools. The policy for both school systems is to wait as late as 6 a.m. on the day of classes before deciding whether to cancel.
-- Patch will have continued updates on the weather situation.