FOCN45 CWWG 241141 CCA

SIGNIFICANT WEATHER DISCUSSION ISSUED BY THE PRAIRIE AND ARCTIC STORM

PREDICTION CENTRE OF ENVIRONMENT CANADA AT 7:00 AM CDT FRIDAY OCTOBER

24 2025.



ALERTS IN EFFECT...BLIZZARD WARNING FOR RESOLUTE.



SYNOPTIC OVERVIEW...ALOFT, UPPER LOW IN THE GULF OF ALASKA WITH

TROUGHING SOUTHWARD OVER THE EASTERN PACIFIC, FOLLOWED BY A LARGE

UPPER RIDGE OVER THE PRAIRIES, EXTENDING NORTHWARDS INTO THE ARCTIC

ARCHEPELEGO. A SMALL CUTOFF UPPER LOW IN SOUTHERN SASKATCHEWAN AND A

LARGE UPPER LOW IN CENTRAL QUEBEC. ANOTHER COUPLE OF UPPER LOWS IN

BAFFIN BAY AND IN THE BEAUFORT SEA.



AT THE SURFACE, TWO LARGE LOW COMPLEXES OVER WESTERN AND EASTERN

CANADA WITH A RIDGE EXTENDING IN BETWEEN THEM FROM THE US MID WEST

NORTHWARD THROUGH WESTERN HUDSON BAY AND ALL THE WAY TO ALERT.

LOW CENTRES IN THE BEAUFORT, NORTHERN NT, THE YUKON AND NORTHERN

QUEBEC. TROUGHING OVER THE WESTERN PRAIRIES.



DISCUSSION...



PRAIRIES...THE RIDGE OVER THE EASTERN PRAIRIES IS RESULTING IN ABOVE

SEASONAL TEMPERATURES AND GENERALLY BENIGN WEATHER OVER THE AOR.

THERE IS SOME FOG UNDER THE RIDGE IN THE EASTERN PRAIRIES THIS

MORNING.



AN AREA OF LOW PRESSURE WILL MOVE INTO NORTHWEST ALBERTA TONIGHT,

BRINGING SHOWERS TO NORTHERN ALBERTA AND THE SOUTHERN NT ON SATURDAY.



ARCTIC...THE LOW OVER THE NORTHERN NT WILL CONTINUE TO PUSH NORTHWARD

TODAY. WITH THE GRADIENT TIGHTENING, EAST WINDS WILL STRENGTHEN AT

RESOLUTE WITH GUSTS UP TO 80 KM/H EXPECTED BEGINNING THIS EVENING.

SNOWFALL WILL ALSO BEGIN THERE NEAR MIDNIGHT TONIGHT, WITH UPWARDS OF

5-10 CM EXPECTED BY SATURDAY AFTERNOON. THE COMBINATION OF VERY

STRONG WINDS AND MODERATE SNOWFALL WILL LIKELY BE ENOUGH TO REDUCE

VISIBLITY TO 1/2 SM OR LESS. WITH THIS SYSTEM HAVING IMPACTED

ULUKHAKTOK YESTERDAY, AND RESOLUTE HAVING ITS FIRST BLIZZARD OF THE

SEASON EARLIER THIS WEEK, A BLIZZARD WARNING WAS ISSUED FOR THAT

COMMUNITY BEGINNING OVERNIGHT. CONDITIONS ARE EXPECTED TO IMPROVE

SATURDAY EVENING AS WINDS WEAKEN.



LOW OVER QUEBEC WILL MOVE TO THE EAST OF BAFFIN ISLAND. SNOW IS

EXPECTED TO START LATER THIS MORNING IN QIKIQTARJUAQ AND CONTINUE

INTO FRIDAY NIGHT. ENSEMBLES GENERALLY SHOW 4 TO 8 CM WITH THE

CANADIAN MODELS ON THE HIGHER END.



END/LUZNY/GRIFFITH