781
FOCN45 CWWG 151900
SIGNIFICANT WEATHER DISCUSSION ISSUED BY THE PRAIRIE AND ARCTIC STORM
PREDICTION CENTRE OF ENVIRONMENT CANADA AT 2:00 PM CDT SUNDAY MARCH
15 2026.
ALERTS IN EFFECT...COLD WARNINGS FOR POND INLET, GJOA HAVEN, AND
TALOYOAK.
SYNOPTIC OVERVIEW...
THE 12Z UPPER ANALYSES REVEALED A LARGE UPPER LOW COMPLEX OVER THE
EASTERN ARCTIC, WITH FLOW AROUND THIS COMPLEX CONTAINING SEVERAL
SHORTWAVE TROUGHS. UPPER RIDGE OVER THE EASTERN PACIFIC.
THE SURFACE ANALYSIS SHOWS A STRONG LOW OVER THE UPPER MIDWEST WITH
HIGH PRESSURE OVER SOUTHERN SASKATCHEWAN STRETCHING A RIDGE BACK
ACROSS THE NWT. A WEAK LOW IS ALSO OVER FOXE BASIN AND A STRONG LOW
IS OVER THE EASTERN PACIFIC.
DISCUSSION...
AB/NWT/NRN SK...QUIET DAY TODAY ALTHOUGH ON THE COLDER SIDE OF
AVERAGE WITH THE ARCTIC RIDGE. TONIGHT WILL BE COLD AGAIN OVER
NORTHERN SK. THE NEXT IMPULSE, THE FIRST OF THE KONA LOWS RIDING THE
PINEAPPLE EXPRESS, WILL STALL OVER THE ALASKAN PANHANDLE THIS
EVENING. THE SECOND WILL MERGE WITH THE FIRST OVERNIGHT, INTENSIFYING
AN ALBERTA LEE LOW THROUGH TUESDAY.
SNOW WILL DEVELOP TONIGHT ACROSS NWRN AB AND THE SW NWT. TOTAL
SNOWFALL AMOUNTS OF 10-15 CM ARE LIKELY ON MONDAY AS MOISTURE MOVES
EAST OF THE ROCKIES. THE HIGHEST AMOUNTS WILL BE IN THE FORT LIARD
REGION ENHANCED BY UPSLOPE FLOW. A SNOWFALL WARNING WILL LIKELY BE
ISSUED THIS AFTERNOON. SOME LOCALIZED BLOWING SNOW IS POSSIBLE
AROUND THE GREAT SLAVE LAKE AREA MONDAY AFTERNOON AND EVENING AS
EASTERLY WINDS PICK UP AND SNOW FALLS. THE WORST CONDITIONS WOULD BE
OVER THE ICE BUT YELLOWKNIFE AND AREA COULD SEE SOME REDUCED
VISIBILITY.
SOME PATCHY FREEZING RAIN IS EXPECTED ALONG THE WARM FRONT, FROM
AROUND GRANDE PRAIRIE TO AROUND CALGARY MONDAY MORNING. INTO THE
EVENING SIGNIFICANT FREEZING RAIN IS EXPECTED OVER NORTHERN ALBERTA
ALONG THE WARM FRONT AS THE LOW RAMPS UP. CURRENTLY IT LOOKS LIKE THE
EDMONTON METRO AREA WILL BE JUST TO THE SOUTH OF THE WORST OF IT.
SOME AREAS AROUND THE LOW ARE EXPECTED TO WARM TO ABOVE ZERO AIR
TEMPERATURES BUT WITH SNOW/ICE ON THE GROUND SLIPPERY CONDITIONS ARE
EXPECTED TO DEVELOP STILL. THE WARM FRONT WILL PUSH INTO WESTERN SK
OVERNIGHT INTO TUESDAY MORNING. ON THE COLD SIDE OF THE WARM FRONT
10-15 CM OF SNOW IS POSSIBLE OVER PARTS OF NORTHERN SK AND MAYBE THE
FORT MCMURRAY REGION, DEPENDING WHERE THE FEATURES ALL END UP.
FARTHER SOUTH, TYPICAL OF A BC ATMOSPHERIC RIVER EVENT, THE STORY
WILL BE WIND IN SW AB WITH GUSTS OF UP TO 90 KM/H POSSIBLE IN THE
AFTERNOON ON MONDAY. STRONG WIND GUSTS, LIKELY EXCEEDING 100 KM/H
IN SOME AREAS ALONG THE FOOTHILLS, ARE EXPECTED OVERNIGHT INTO
TUESDAY MORNING ACROSS SOUTHERN ALBERTA.
NU...COLD AIRMASS REMAINS ENTRENCHED OVER MUCH OF THE REGION, BUT
ONLY A FEW SITES ARE EXPECTED TO QUALIFY FOR COLD WARNINGS.
THE EASTERN KITIKMEOT SHOULD WARM ENOUGH MONDAY TO END THE WARNING
THERE, AS A LOBE OF THE POLAR VORTEX ROTATES OFF.
THE LOW OVER THE UPPER MIDWEST WILL EVENTUALLY AFFECT SOUTHEASTERN
BAFFIN ISLAND LATE TUE INTO WED, LIKELY BRINGING BLIZZARD CONDITIONS.
MB...NIL SIG WX.
END/FULTON/CARLSEN/ROMBOUGH
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