FOCN45 CWWG 012000

SIGNIFICANT WEATHER DISCUSSION ISSUED BY THE PRAIRIE AND ARCTIC STORM

PREDICTION CENTRE OF ENVIRONMENT CANADA AT 2:00 PM CST SUNDAY

NOVEMBER 1 2026.



ALERTS IN EFFECT...SNOWFALL WARNING FOR PANGNIRTUNG, FOG ADVISORY FOR

PARTS OF CENTRAL AND SOUTHEASTERN ALBERTA AS WELL AS PARTS OF

SOUTHERN SASKATCHEWAN AND WESTERN MANITOBA.



SYNOPTIC OVERVIEW...00Z UPPER AIR ANALYSIS SHOWS A DEEP TROUGH OFF

THE WEST COAST, A SIGNIFICANT UPPER LOW OVER FOXE BASIN, AND AN UPPER

RIDGE OVER THE PRAIRIES. AT THE SURFACE, 12Z ANALYSIS SHOWS A 992 MB

LOW OVER WESTERN HUDSON STRAIT WITH A TROUGH EXTENDING FROM THE LOW

TOWARDS THE VICINITY OF KIMMIRUT. A DIRTY RIDGE OF HIGH PRESSURE LIES

OVER THE SOUTHERN PRAIRIES.



DISCUSSION...



AB/NORTHERN SK...FOG STARTED DEVELOPING IN SHORT ORDER THROUGH MUCH

OF CENTRAL AND SOUTHEASTERN ALBERTA AFTER SUNSET LAST NIGHT.

FOG REMAINS EXTENSIVE EAST OF THE QEII, IN EDMONTON, AND THERE'S

STILL SOME PATCHES KICKING AROUND JUST WEST OF THE CITY. IT SHOULD

CLEAR OUT BY THIS AFTERNOON AT SOME POINT.



AFTERWARDS, NOT MUCH WEATHER TO SPEAK OF IN ALBERTA. MOST OF THE

PROVINCE WILL REMAIN UNDER THE INFLUENCE OF A RIDGE. AREAS RIGHT

ALONG THE BORDER MIGHT SEE A SHOWER THIS EVENING FROM A SYSTEM WELL

INTO THE UNITED STATES, AND A STABLE NORTHWESTERLY FLOW MAY CAUSE

SOME MILDLY ENHANCED WINDS ON THE SOUTH SIDE OF THE CYPRESS HILLS

TONIGHT.



IN NORTHERN SASKATCHEWAN JUST NORTH OF THE GRAINBELT, THERE'S A

SLIGHT RISK OF FREEZING RAIN EARLY THIS MORNING AND THEN AGAIN

TONIGHT AS A SHORTWAVE AND THEN A BROADER UPPER TROUGH PASSES AND THE

NORTHERN FRINGES OF THE AFOREMENTIONED LOW SPINS MOISTURE INTO THE

AREA, WITH A WARM FRONT WELL TO THE SOUTHEAST PROVIDING AN AFL OR

NFL.



SOUTHERN SK/MB...WIDESPREAD FG/ST UNDER DIRTY RIDGE. FOG ADVISORIES

WERE ISSUED THIS MORNING. VISIBILITIES REMAIN VERY POOR IN SPOTS WITH

SOME IMPROVEMENT EXPECTED THROUGH THE DAY ON SUNDAY BUT LIKELY WILL

SEE WIDESPREAD RE-DEVELOPMENT THIS EVENING OVER EASTERN SASKATCHEWAN

AND SOUTHERN MANITOBA. WEAK UPPER DISTURBANCE WILL MOVES ACROSS SE

SK/SRN MB TODAY BRINGING SCATTERED SHOWERS/DRIZZLE. MORE ORGANIZED

SYSTEM WILL BRING RAIN TO SOUTHERN MB ON MONDAY, WITH TOTAL

ACCUMULATIONS OF 5 TO 10 MM, POSSIBLY HIGHER IN THE SOUTHEAST CORNER.

WIDESPREAD FOG WILL CONTINUE TO BE A CONCERN TONIGHT THROUGH MONDAY.

TEMPERARURE FORECASTS PROBLEMATIC IN SOME AREAS AS MODELS REFLECT

WARM TEMPERATURES ALOFT...BUT THIS ARE UNLIKELY TO BE REALIZED GIVEN

HEAVY OVERCAST CLOUD COVER AND SPORADIC PRECIPITATION AND HENCE WE

BACKED OFF ON SOME OVERLY OPTIMISTIC DAYTIME HIGH FORECASTS.



NT...LOW PASSING ACROSS THE BEAUFORT WILL BRING A STRONG INVERSION TO

THE NORTHERN PORTIONS OF THE TERRITORY WHICH MAY ALLOW FOR A COUPLE

SPRINKLES OF FREEZING RAIN TODAY OVER FORT GOOD HOPE, COLVILLE LAKE,

AND PAULATUK AND FOR SOME FOG PATCHES TO DEVELOP IN THE MACKENZIE

DELTA TONIGHT. OVERNIGHT, WESTERLIES ASSOCIATED WITH THE LOW ALONG

WITH SOME SNOW MAY ALLOW FOR BLOWING SNOW TO DEVELOP OVER SACHS

HARBOUR AND ULUKAHKTOK, BUT CONDITIONS AREN'T SEVERE ENOUGH AND ICE

NOT EXTENSIVE ENOUGH FOR US TO CONSIDER A BLIZZARD.



CENTRAL AND HIGH ARCTIC...AFOREMENTIONED LOW WILL INCREASE WINDS AND

BRING A FEW FLURRIES TO THE EASTERN KITIKMEOT OVERNIGHT AND MONDAY,

WHICH COULD CAUSE BLOWING SNOW, THOUGH CONDITIONS AGAIN DON'T SEEM

SEVERE ENOUGH FOR BLIZZARD CONDITIONS. THERE MAY BE A BETTER PROSPECT

OF A BLIZZARD IN RESOLUTE MONDAY GIVEN THE ICE COVER OFF SHORE, BUT

THE SNOWPACK STATE IS UNCERTAIN, LIKELY NOT LOOSE, AND THE PERIOD OF

HEAVIEST SNOW DOESN'T QUITE OVERLAP THE PERIOD OF HEAVIEST WIND, SO

WE DON'T FEEL CONFIDENT ENOUGH TO ISSUE A WARNING HERE.



PANGNIRTUNG...TROUGH ASSOCIATED WITH FOXE BASIN LOW SHOULD MOVE

THROUGH PANGNIRTUNG TODAY BRINGING A FURTHER 5-10 CM SNOW.



REMAINDER OF BAFFIN...5-10 CM SNOW IN IQALUIT/KIMMIRUT TODAY AS

AFOREMENTIONED TROUGH MOVES THROUGH THESE COMMUNITIES. SOME BLOWING

SNOW IN AREAS WITH STRONGER WINDS.



KIVALLIQ...FAIR WEATHER AS A WEAK RIDGE APPROACHES FROM THE WEST.



END/FULTON/STAMMERS/BATE/VAN LOCHEM