FOCN45 CWWG 241200
SIGNIFICANT WEATHER DISCUSSION ISSUED BY THE PRAIRIE AND ARCTIC STORM
PREDICTION CENTRE OF ENVIRONMENT CANADA AT 7:00 AM CDT WEDNESDAY
APRIL 24 2024.

ALERTS IN EFFECT...NONE AT THIS TIME.

SYNOPTIC OVERVIEW...00Z UPPER AIR ANALYSIS NEAR HAIDA GWAII WITH AN
UPPER RIDGE OVER ALBERTA/YUKON. UPPER LOW OVER THE HIGH ARCTIC WITH
TROUGHING OVER NORTHERN QUEBEC. SHORTWAVE VISIBLE ON SAT IMAGERY
MOVING INTO NW MANITOBA. AT THE SURFACE, 06Z ANALYSIS SHOWING A 999
LOW OFF THE SE COAST OF BAFFIN ISLAND, A RIDGE OF HIGH PRESSURE
EXTENDING FROM SOUTHERN HUDSON BAY INTO THE CENTRAL ARCTIC, AND A
WEAK LOW ASSOCIATED WITH THE SHORTWAVE MOVING INTO NW MANITOBA WITH A
WARM FRONT EXTENDING SOUTH AND A COLD FRONT WEST THEN NORTH.

DISCUSSION...

AB/NRN SK...WARM TEMPERATURES WILL PREVAIL TODAY, ESPECIALLY IN AB
BEFORE A COLD FRONT MOVES ACROSS THAT PROVINCE BEGINNING TONIGHT.
CONVECTIVE SHOWERS OR FLURRIES ARE LIKELY FOR AREAS OF THE FOOTHILLS
AND MOUNTAIN PARKS, WITH SLIGHT RISK OF A THUNDERSTORM NEAR HINTON
IN THE VICINITY OF AN UPPER JET.

FURTHER NORTH, A DEVELOPING LOW WILL MOVE EAST INTO SK, BRINGING
WINTRY PRECIP TO NORTHERN PARTS OF THE PROVINCE. THE EXACT TRACK OF
THIS LOW IS UNCERTAIN, WITH DIVERGING SOLUTIONS AMONG NWP GUIDANCE.
WITH CAA IN PLAY FURTHER EAST, THERE IS SOME DEBATE IN WHETHER THE
DOMINANT PRECIPITATION TYPE WILL BE RAIN OR SNOW. ADJUSTMENTS TO
PTYPE MAY BE REQUIRED AS THIS EVENT DRAWS NEARER.

ON THURSDAY, CONVECTIVE SHOWERS AND FLURRIES ARE LIKELY TO CONTINUE
OVER HIGHER TERRAIN. ADDITIONAL WEAK THUNDERSTORMS ARE POSSIBLE NW
OF LESSER SLAVE LAKE IN AB AS LAPSE RATES STEEPEN BEHIND THE
AFOREMENTIONED COLD FRONT.

MB/SRN SK..WEAK LOW MOVING INTO NORTHERN MB WITH ISOLATED FLURRIES OR
SHOWERS. VERY MILD IN SOUTHERN SK IN THE WARM SECTOR.

EASTERN ARCTIC..A SYSTEM CROSSING BAFFIN BAY WILL PASS NEAR
GRISE FIORD ON THURSDAY, POTENTIALLY BRINGING 5-10 CM OF SNOW
AND STRONG EASTERLY WINDS POSSIBLY GUSTING AS HIGH AS 80 KM/H.
THE EXACT TRACK OF THIS LOW IS UNCERTAIN, WITH ANY DEVIATION - NORTH
OR SOUTH - POTENTIALLY RESULTING IN A FAR WEAKER WIND REGIME AND
LESSER SNOWFALL AMOUNTS.

ELSEWHERE, LOTS OF BOUNDARY LAYER CLOUD WITH LIGHT SNOW, BUT NO
WEATHER OF NOTE EXPECTED.

OUTLOOK..SYSTEM MOVING THROUGH THE NORTHERN PRAIRIES ON THURSDAY WILL
BRING SNOW/BLOWING SNOW TO THE KIVALLIQ ON FRIDAY, WITH BLIZZARD
CONDITIONS LIKELY IN SOME COMMUNITIES.

END/FULTON/VAN LOCHEM/QUACKENBUSH