370
FOCN45 CWWG 131300
SIGNIFICANT WEATHER DISCUSSION ISSUED BY THE PRAIRIE AND ARCTIC STORM
PREDICTION CENTRE OF ENVIRONMENT CANADA AT 7:00 AM CST SATURDAY
DECEMBER 13 2025.
ALERTS IN EFFECT...EXTREME COLD WARNINGS FOR MUCH OF THE PRAIRIES.
BLIZZARD WARNING FOR THE TUKTOYAKTUK REGION. WINTER STORM WATCH FOR
PAULATUK.
SYNOPTIC OVERVIEW...00Z UPPER AIR ANALYSIS SHOWING A TROUGH
OVER THE EASTERN PACIFIC, A RIDGE OFF THE WEST COAST, A TROUGH FROM
THE HIGH ARCTIC THROUGH KIVALLIQ INTO NW ONTARIO, AND A RIDGE OVER
EASTERN HUDSON BAY. 06Z SURFACE ANALYSIS SHOWING A RIDGE OVER THE
CENTRAL PRAIRIES EXTENDING TO NORTHERN BAFFIN ISLAND. A SERIES OF
LOW PRESSURE SYSTEMS ARE MOVING THROUGH THE WESTERN ARCTIC. LOW WEST
OF HAIDA GWAII. HIGH PRESSURE OVER ALASKA AND YUKON.
DISCUSSION...
WESTERN PRAIRIES...COLD WILL END LATER TODAY AS A LEE LOW STARTS TO
DEVELOP, PUSHING THE RIDGE TO THE EAST. SOUTHERLY WINDS OVER EASTERN
ALBERTA WITH THE GRADIENT BETWEEN THE TWO FEATURES MAY CAUSE SOME
DRIFTING SNOW, WHICH MAY MAKE HIGHWAY TRAVEL A BIT IFFY. STRONG
WESTERLY WINDS ARE EXPECTED OVER SW ALBERTA ON SUNDAY, WITH
POTENTIAL FOR WARNINGS, DEPENDING HOW THE NEW LOW ENDS UP
DEVELOPING.
SNOW WITH ICE PELLETS AND MAYBE FREEZING RAIN WILL MOVE ACROSS
NORTHERN AB THROUGH THE WEEKEND. 10-15 CM IS POSSIBLE FOR THE PEACE
RIVER REGION BUT MODEL CONSISTENCY IS RELATIVELY POOR STILL TO HAVE
MUCH CONFIDENCE IN POTENTIAL IMPACTS FROM PRECIPITATION.
EASTERN PRAIRIES...EXTREME COLD WARNINGS CONTINUE FOR MUCH OF THE
AREA THIS MORNING. THIS WARNING WILL CONTINUE IN MANY AREAS AGAIN
TONIGHT BEFORE MODERATING ON SUNDAY AS WARMER AIR MOVES INTO THE
REGION ON THE BACK SIDE OF THE RIDGE.
WESTERN ARCTIC...A LOW OVER THE BEAUFORT SEA IS FORECAST TO DROP
ACROSS VICTORIA ISLAND THROUGH SUNDAY. BLOWING SNOW IS EXPECTED WITH
BLIZZARD CONDITIONS IN SOME AREAS.
EASTERN ARCTIC...COLD, OTHERWISE NIL SIG WX.
END/FULTON/ROMBOUGH
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