FOCN45 CWWG 221900 SIGNIFICANT WEATHER DISCUSSION ISSUED BY THE PRAIRIE AND ARCTIC STORM PREDICTION CENTRE OF ENVIRONMENT CANADA AT 2:00 PM CDT SUNDAY MARCH 22 2026. ALERTS IN EFFECT...NONE AT THIS TIME. SYNOPTIC OVERVIEW... ALOFT, UPPER LOW COMPLEX OVER THE GULF OF ALASKA SENDING A SHORTWAVE TROUGH TO THE EAST, FLATTENING THE RIDGE OVER ALBERTA. TWO UPPER LOWS ARE OVER THE ARCTIC, ONE OVER MAINLAND NUNAVUT AND ANOTHER OVER DAVIS STRAIT, WHILE A LARGE UPPER TROUGH STRETCHES OVER LABRADOR THROUGH NEWFOUNDLAND. AT THE SURFACE, A LOW IS OVER THE GULF OF ALASKA WITH A WEAK LEE LOW FORMING NEAR FORT ST. JOHN, BC. A RIDGE FROM THE EASTERN PACIFIC BUILDS INTO SOUTHWESTERN BC. ANOTHER RIDGE EXTENDS FROM A 1035 MB HIGH OVER THE NORTHERN NWT SOUTHEASTWARD TO NORTH DAKOTA THEN NORTHEASTWARD THROUGH NORTHERN ONTARIO AND INTO NORTHERN QUEBEC. A WEAK LOW PRESSURE SYSTEM SITS OVER SOUTHAMPTON ISLAND. ADDITIONAL LOWS OF 1001 MB ARE LOCATED OVER SOUTHERN ONTARIO, AND 985 MB NORTHEAST OF NEWFOUNDLAND. DISCUSSION... AB/NRN SK...STRATUS AND FOG CONTINUE TO BURN OFF. A WEAK FRONTAL SYSTEM IS DEVELOPING IN THE PEACE REGION AND WILL TRACK EASTWARDS ACROSS NORTHERN ALBERTA TODAY AND NORTHERN SASKATCHEWAN TONIGHT. SOME ACC MAY BE EMBEDDED IN THIS SYSTEM ALLOWING FOR SOMEWHAT HIGHER SNOWFALL RATES IN CONVECTIVE SNOW SHOWERS, BUT AMOUNTS SHOULDN'T BE MORE THAN 2 TO 4 CENTIMETRES LOCALLY. SIMILAR AMOUNTS ARE EXPECTED OVER THE MOUNTAIN PARKS TODAY. MIGHT BE WARM ENOUGH FOR A FEW SPOTS TO SEE SOME RAIN SHOWERS. SIMILAR PATTERN FOR MONDAY, WITHOUT THE MORNING FOG LIKE TODAY. SRN SK/MB...RELATIVELY BENIGN WEATHER IS EXPECTED FOR THE EASTERN PRAIRIES FOR THE REMAINDER OF THE WEEKEND. LOW LEVEL MOISTURE CONTINUES TO PRODUCE LIGHT SNOW AND PATCHY FREEZING DRIZZLE UNDERNEATH THE STRATUS DECK. A MORE SUBSTANTIAL DISTURBANCE IS FORECAST TO PASS THROUGH THE PRAIRIES SUNDAY NIGHT INTO MONDAY, BRINGING A FURTHER WINTRY MIX OF PRECIPITATION. HOWEVER, NO WARNINGS ARE EXPECTED AT THIS TIME. BAFFIN ISLAND/KIVALLIQ...THE LOW OVER SOUTHAMPTON ISLAND WILL CONTINUE MOVING TOWARD SOUTHERN BAFFIN ISLAND TODAY, BRINGING LIGHT SNOW. A GRADIENT WILL BEGIN TO DEVELOP OVER KIVALLIQ ON SUNDAY AFTERNOON, WITH A BUILDING HIGH OVER THE NORTHWEST TERRITORIES, WHICH MAY RESULT IN BLOWING SNOW IN THE REGION. CURRENTLY, THE IMPACTS APPEAR TO BE MINIMAL, AND WIDESPREAD WARNINGS ARE NOT ANTICIPATED. NONETHELESS, BLOWING SNOW WILL BE INCLUDED IN PUBLIC FORECASTS. THIS LOW WILL EVENTUALLY MOVE INTO THE DAVIS STRAIT AND INTENSIFY, WITH BLIZZARD CONDITIONS EXPECTED IN CLYDE RIVER ON WEDNESDAY. WESTERN ARCTIC...QUIET BUT COLD WEATHER UNDER THE RIDGE. THERE'S A. REASONABLE CHANCE OF A COLD WARNING LATER BEING ISSUED FOR TONIGHT AT WEKWEETI, WHICH IS DIRECTLY UNDER THE RIDGE AND IS EXPECTED TO SEE TEMPERATURES PLUNGE INTO THE MINUS 40S. HOWEVER, WINDS WILL ALSO BE VERY LIGHT SO IT'S MARGINAL. LUTSEL K'E AND YELLOWKNIFE WILL ALSO HAVE COLD WIND CHILLS IN THE MID MINUS 40S. KITIKMEOT/HIGH ARCTIC... QUIET WEATHER IN A WEAK NORTHERLY FLOW BETWEEN THE RIDGE AND LOW, THOUGH IT IS RELATIVELY COLD. SO WITH THE BIT OF BREEZE SOME LOCATIONS ARE FLIRTING WITH WIND CHILLS APPROACHING -55. END/FULTON/ROMBOUGH