710
FOCN45 CWWG 241200
SIGNIFICANT WEATHER DISCUSSION ISSUED BY THE PRAIRIE AND ARCTIC STORM
PREDICTION CENTRE OF ENVIRONMENT CANADA AT 7:00 AM CDT TUESDAY MARCH
24 2026.
ALERTS IN EFFECT...SPECIAL WEATHER STATEMENT FOR CENTRAL SASKATCHEWAN
AND PORTIONS OF SOUTHERN MANITOBA. YELLOW BLIZZARD WARNING FOR CLYDE
RIVER. YELLOW COLD WARNING FOR PORTIONS OF NORTHERN MANITOBA AND
ALBERTA. SNOWFALL WARNING FOR PARTS OF CENTRAL ALBERTA AND THE
ROCKIES.
SYNOPTIC OVERVIEW...
ALOFT, AN UPPER LOW IS POSITIONED OFF THE CENTRAL BRITISH COLUMBIA
COAST, LEADING TO SOUTHWEST FLOW ACROSS MUCH OF BC AND INTO THE
NORTHWESTERN US. MEANWHILE, WESTERLY TO NORTHWESTERLY WINDS PREVAIL
OVER THE CENTRAL AND EASTERN PRAIRIES. A SECOND UPPER LOW SITS OVER
HUDSON STRAIT WITH AN ASSOCIATED TROUGH EXTENDING SOUTHWARD THROUGH
HUDSON BAY AND INTO NORTHWESTERN ONTARIO. SUBTLE RIDGING IS VISIBLE
ACROSS SOUTHERN ONTARIO INTO QUEBEC.
AT THE SURFACE, A 991 MB LOW APPROACHES THE SOUTHERN BC COASTLINE.
HIGH PRESSURE RIDGING EXTENDS SOUTHEAST FROM THE BEAUFORT SEA THROUGH
THE NORTHWEST TERRITORIES AND INTO THE NORTHERN PRAIRIES. A 1010 MB
LOW IS OVER SOUTHERN ALBERTA, WHILE A SHORTWAVE TROUGH MOVES THROUGH
THE CENTRAL PRAIRIES TO THE NORTH. ADDITIONAL LOWS OF 1001 MB AND
1002 MB ARE POSITIONED OVER JAMES BAY AND SOUTHERN BAFFIN ISLAND,
RESPECTIVELY.
DISCUSSION...
AB/NRN SK...AS PACIFIC STORM MOVES ONSHORE, UPPER WARM FRONT
WILL DEVELOP ACROSS NORTHERN ALBERTA. A BAND OF HEAVY SNOW WILL
EXTEND FROM THE GRANDE PRAIRIE REGION TOWARDS LLOYDMINSTER BY THIS
EVENING. ACCUMULATIONS OF 25 CM IS LIKELY BY WEDNESDAY AFTERNOON.
THE MOUNTAINS WILL ALSO SEE ACCUMULATIONS THROUGHOUT THE WEEK AS
PACIFIC MOISTURE CONTINUES TO STREAM IN.
SHORT WAVE TROUGH OVER NORTHERN SASK WILL DEPART THIS MORNING. LIGHT
SNOW WILL PERSIST ALONG THE TRAILING DEFORMATION ZONE WHICH WILL
THEN CONNECT TO THE SNOW IN ALBERTA.
NORTH OF THE PRECIPITATION, ARCTIC AIR IS CAUSING WIND CHILL VALUES
IN THE MINUS FORTIES IN THE OVERNIGHT HOURS.
SRN SK/MB...A SHORTWAVE OVER THE CENTRAL PRAIRIES WILL TRACK
SOUTHEAST TODAY, PRODUCING SOME ACCUMULATING SNOW ACROSS CENTRAL
SASKATCHEWAN AND MANITOBA BEFORE WEAKENING. A STRONGER SYSTEM WILL
MOVE INTO THE REGION TONIGHT AND INTO WEDNESDAY, BRINGING A SWATH OF
ACCUMULATING SNOW TO CENTRAL SASKATCHEWAN AND SOUTHERN MANITOBA FROM
WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT, POSSIBLY LINGERING INTO
THURSDAY MORNING.
MOST GUIDANCE HAS BEEN CONSISTENT WITH SUGGESTING A SWATH OF 10 TO
15 CM OF SNOW SPANNING FROM MEADOW LAKE, SK SOUTHEAST TOWARDS THE
PARKLANDS IN MANITOBA, WITH HIGHER ACCUMULATIONS POSSIBLE OVER THE
HIGHER TERRAIN, THOUGH HIGH-RES MODELS WILL ALSO NEED TO BE ASSESSED
TO DETERMINE ANY ADJUSTMENTS NECESSARY TO WARNINGS ONCE THEY'RE
ISSUED. FOR THE TIME BEING, A SPECIAL WEATHER STATEMENT HAS BEEN
ISSUED TO HIGHLIGHT THE ADVERSE WEATHER AND PROVIDE EARLY
NOTIFICATION.
FREEZING RAIN IS POSSIBLE ALONG THE WARM FRONTAL BOUNDARY FROM
LEADER/KINDERSLEY, SK, THROUGH REGINA AND ESTEVAN ON WEDNESDAY,
EXTENDING INTO SOUTHWESTERN MANITOBA AS THE SYSTEM TRACKS SOUTHEAST.
HOWEVER, ACCUMULATIONS ARE NOT EXPECTED TO BE WIDESPREAD OR HEAVY, SO
THIS REMAINS A NOTED RISK IN PUBLIC FORECASTS RATHER THAN A PRIMARY
CONCERN.
LASTLY, AS THIS SYSTEM DEVELOPS AND MOVES TO THE SOUTHEAST, WINDS
WILL INCREASE ACROSS SOUTHWESTEN SASKATCHEWAN WEDNESDAY MORNING,
SPECIFICALLY OVER SHAUNAVAN AND CYPRESS HILLS AREA, WHERE GUSTS OF 80
TO 90 KM/H ARE POSSIBLE.
BAFFIN ISLAND/KIVALLIQ...CONDITIONS WILL REMAIN FAIRLY QUIET ACROSS
KIVALLIQ. GUSTY WINDS AT TIMES MAY CAUSE LOCALIZED BLOWING SNOW, BUT
NO SIGNIFICANT WEATHER IS EXPECTED IN THE SHORT TERM.
THE LOW-PRESSURE SYSTEM OVER SOUTHERN BAFFIN ISLAND WILL MOVE INTO
DAVIS STRAIT TODAY, LEADING TO BLIZZARD CONDITIONS IN CLYDE RIVER.
THESE CONDITIONS ARE EXPECTED TO DEVELOP TUESDAY EVENING AND PERSIST
THROUGH WEDNESDAY, TAPERING OFF BY WEDNESDAY EVENING. ADDITIONALLY,
SNOWFALL ACCUMULATIONS OF 5 TO 10 CM ARE FORECASTED, BUT TOTALS MAY
VARY DUE TO THE PRESENCE OF BLIZZARD CONDITIONS.
NWT...GENERALLY CLEAR CONDITIONS ASSOCIATED WITH THE RIDGE OF
HIGH PRESSURE. COLD WIND CHILL VALUES AROUND GREAT SLAVE LAKE.
KITIKMEOT/HIGH ARCTIC...NIL SIG WX.
END/KOKOLSKY/MARK
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