11.   Wednesday, temperatures plunged below zero degrees across parts of south-central Alaska as frigid Arctic air arrived on winds from the north.

12.   When sleet turned to rain, their clothing became soaked, and when temperatures later plunged, it froze solid.

13.   When the skies cleared Monday night, temperatures plunged well below zero.

14.   As night fell and temperatures plunged, uncertainty set in.

15.   At night the temperature plunges below the freezing point.

16.   In the Italian Alps near Bolzano, snow fell on some mountains after the temperature plunged.

17.   In winter, winds howl and temperatures plunge far below freezing.

18.   Temperatures plunged and a blanket of snow covered northwestern Iran on Sunday, hampering rescue teams trying to reach villages devastated by a deadly earthquake.

19.   Temperatures plunged and a blanket of snow covered northwestern Iran on Sunday, hampering rescue teams trying to reach villages devastated by a massive earthquake.

20.   Temperatures plunged well below zero and combined with blowing snow Saturday, sending residents across the Rockies and northern Plains scrambling for wool sweaters and parkas.