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Winter storm warnings issued for Alberta as up to 50cm possible


4:24 AM MST Wednesday 27 November 2019 Winter storm warning in effect for areas in red:

Hazardous winter conditions are expected.

A prolonged period of snow is forecast for southwestern Alberta. Total snowfall amounts will be from 25 to 40 cm with some localities possibly exceeding 50 cm. Additionally, moderate to strong gusty northerly winds will develop today producing near zero visibilities in blowing snow. The snowfall is expected to end on Thursday.

Consider postponing non-essential travel until conditions improve. Surfaces such as highways, roads, walkways and parking lots may become difficult to navigate due to accumulating snow. Visibility will be suddenly reduced to near zero at times in heavy snow and blowing snow.

Winter storm warnings are issued when multiple types of severe winter weather are expected to occur together.

Graphic from NWS Great Falls, MT

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM TO 11 PM MST THURSDAY... * WHAT...Blizzard conditions occurring. Total snow accumulations of 12 to 18 inches, with isolated amounts up to 28 inches. Winds gusting as high as 40 mph. For the Winter Storm Warning, heavy snow expected to continue on Thursday. * WHERE...Northern Rocky Mountain Front. * WHEN...For the Blizzard Warning, until 5 AM MST Thursday. For the Winter Storm Warning, from 5 AM to 11 PM MST Thursday. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow could reduce visibility below one quarter mile, and block roadways in drifting snow.

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