640
FOCN45 CWWG 241900
SIGNIFICANT WEATHER DISCUSSION ISSUED BY THE PRAIRIE AND ARCTIC STORM
PREDICTION CENTRE OF ENVIRONMENT CANADA AT 2:00 PM CDT FRIDAY APRIL
24 2026.
ALERTS IN EFFECT...ORANGE BLIZZARD WARNING FOR PARTS OF NORTHERN
MANITOBA. ORANGE WINTER STORM WARNING FOR FLIN FLON, AND PARTS OF
NORTHERN SASKATCHEWAN. ORANGE FREEZING RAIN WARNING REMAINS FOR
ISLAND LAKE. ORANGE SNOWFALL WARNING BETWEEN FORT MCMURRAY AND COLD
LAKE. YELLOW SNOWFALL WARNING FOR THE NORTHERN GRAINEBELT OF
SASKATCHEWAN AND NORTHWESTERN SASKATCHEWAN. YELLOW BLOWING SNOW
ADVISORY FOR PARTS OF SOUTHEASTERN AND EAST CENTRAL ALBERTA AND
PARTS OF SOUTHWESTERN SASKATCHEWAN.
SYNOPTIC OVERVIEW...ALOFT, LARGE UPPER LOWS OVER THE HIGH ARCTIC,
SOUTHERN SASKATCHEWAN AND THE MARTIMES. UPPER RIDGING OVER THE
EASTERN PACIFIC INTO YUKON TERRITORY AND OVER ONTARIO INTO HUDSON
BAY.
AT THE SURFACE, A 994 MB LOW NEAR THE PAS WITH A WARM FRONT THROUGH
CENTRAL MANITOBA AND A COLD FRONT INTO NORTHWESTERN ONTARIO. A 1044
MB HIGH CENTERED NEAR KUGAARUK DOMINATES THE ARCTIC WITH A RIDGE
AXIS EXTENDING SOUTHWARD THROUGH B.C. AND WESTERN ALBERTA.
DISCUSSION...
PRAIRIES...A POWERFUL SLOW-MOVING SPRING STORM CONTINUES TO EFFECT
THE PRAIRIES WITH HEAVY SNOW, STRONG WINDS, BLOWING SNOW, FREEZING
RAIN AND RAIN. IMPACTS FOR EACH REGION ARE OUTLINED SEPARATELY BELOW.
MANITOBA...HEAVY SNOW CONTINUES OVER MOST OF NORTHERN MANITOBA TODAY
AND TONIGHT WITH AN ADDITIONAL 15 TO 30 CM EXPECTED FROM FLIN FLON
NORTH TO LAC BROCHET AND EAST TO GILLAM AND TADOULE LAKE. STRONG
EASTERLY WINDS GUSTING TO 70 KM/H OVER FAR NORTHERN MANITOBA IS
EXPECTED TO CONTINUE TO BRING BLIZZARD CONDITIONS TO LYNN LAKE, LAC
BROCHET AND TADOULE LAKE. A BAND OF FREEZING RAIN AND ICE PELLETS
SOUTH OF THE HEAVY SNOW WILL CONTINUE TO TAPER OFF THROUGH THIS
AFTERNOON AS THE WARM AIR GETS PINCHED OFF. SNOW CONTINUES OVER
NORTHERN MANITOBA THROUGH THE WEEKEND UNTIL THE LOW MOVES INTO
HUDSON BAY ON MONDAY. A FEW FLURRIES OR SHOWERS CONTINUE FOR THE
REST OF MANITOBA WITH NO SIGNIFICANT WEATHER. BELOW-SEASONAL
TEMPERATURES WILL FOLLOW INTO NEXT WEEK.
SOUTHERN SK...HEAVY SNOW ALONG THE TROWEL OF THIS SYSTEM WILL
CONTINUE TODAY OVER THE NORTHERN GRAINBELT BRINGING AN ADDITONAL 15
TO 20 CM OVER THE NEXT 24 HOURS. BELOW-SEASONAL TEMPERATURES AND
PERIODS OF SNOW WILL CONTINUE ELSEWHERE IN THE SOUTHERN PART OF
SASKATCHEWAN WITH AN ADDITIONAL 2 TO 10 CM DEPENDING ON WHERE
CONVECTIVE BANDS SET UP BUT FURTHER SNOWFALL WARNINGS ARE NOT
EXPECTED. THESE CONVECTIVE FLURRIES WILL CONTINUE THROUGH SATURDAY.
NORTHERN SK...SNOWFALL CONTINUES OVER NORTHERN SASKATCHEWAN.
TOTAL SNOWFALL ACCUMULATIONS ARE VERY DIFFICULT TO DETERMINE IN THE
ABSENCE OF MANNED OBSERVATIONS, BUT SEVERAL SOG SENSORS INCREASED
OVER 30 CM, WITH SETTLING, AND ISLAND LAKE HAS REPORTED AS MUCH AS
50 MM WATER EQUIVALENT SINCE THE ONSET OF THE STORM, THOUGH SOME ICE
PELLETS AND FREEZING RAIN MAY BE PART OF THAT TOTAL. SOME MEDIA
REPORTS AND A LITTLE EXTRAPOLATION SUGGESTS OUR FORECAST RANGES ARE
PLAUSIBLE. THE HEAVIEST CONCENTRATION OF SNOW TODAY WILL BE IN
THE NORTHEAST, WHERE UP TO AN ADDITIONAL 15 CM OF SNOWFALL IS
EXPECTED. OTHER REGIONS WILL SEE ANOTHER 5 TO 10 CM. WINDS
WILL GRADUALLY TAPER OFF AND SNOWFALL RATES SHOULD BE FAIRLY LIGHT
TONIGHT, BRINGING AN END TO MOST OF THE ALERTS. GUIDANCE SUGGESTS
THAT CONVECTIVE FLURRIES WILL DEVELOP OVER KEY LAKE AND PELICAN
NARROWS REGIONS TOMORROW. ALTHOUGH AMOUNTS WILL LIKELY BE LESS THAN
15CM/24 HOURS, IT IS POSSIBLE THAT AN IMPACT BASED SNOWFALL ALERT IS
ISSUED.
ALBERTA...A SNOWFALL WARNING CONTINUES SOUTH OF FORT MCMURRAY AS
RADAR SHOWS HEAVY SNOW OVER THE AREA. SNOW SHOULD TAPER OFF THIS
EVENING.
CONVECTIVE SNOW AND STRONG WINDS ARE RESULTING IN POOR VISIBILITY
THROUGH CENTRAL AND SOUTHERN ALBERTA. GUSTS OF 90KM/H IN THE
CALGARY REGION PROMPTED A WIND WARNING WITH A BLOWING SNOW ADVISORY
REPLACING THE SPECIAL WEATHER STATEMENT FOR THE REMAINDER OF THE
AFFECTED REGIONS. WINDS WILL TAPER OFF EARLY THIS EVENING, HOWEVER
CONVECTIVE FLURRIES WILL CONTINUE. WHILE CONFIDENCE IN BAND PLACEMENT
IS LOW, SOME AREAS COULD SEE RAPID SNOWFALL ACCUMULATIONS OF UP TO 10
CM.
NWT...WITH WARM ADVECTION AND A TOUCH OF MOISTURE, THERE'S A RISK OF
FREEZING RAIN IN THE MACKENZIE DELTA TONIGHT. WINDS OF 40 KM/H WITH
GUSTS TO 60, PERHAPS HIGHER, ARE EXPECTED IN ULUKAKTOK IN THE STRONG
SOUTHEASTERLY FLOW AROUND A POWERFUL RIDGE TONIGHT AND SATURDAY, BUT
WITH NO FRESH SNOW AVAILABLE, WE DON'T FORESEE MUCH OF A BLOWING SNOW
THREAT.
NUNAVUT...NO SIGNIFICANT WEATHER IS EXPECTED AT THIS TIME.
END/LUZNY/MOODIE/BATE/GERGELY
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