FOCN45 CWWG 141930
SIGNIFICANT WEATHER DISCUSSION ISSUED BY THE PRAIRIE AND ARCTIC STORM
PREDICTION CENTRE OF ENVIRONMENT CANADA AT 2:00 PM CST THURSDAY
NOVEMBER 14 2024.

ALERTS IN EFFECT...NONE AT THIS TIME.

SYNOPTIC OVERVIEW...UPPER TROUGH PUSHING INTO BC MAINLAND. SHORTWAVE
OVER SOUTHWESTERN SK SUPPORTING A 1001 MB SFC LOW. ANOTHER SHORTWAVE
SITS OVER NORTHERN HUDSON BAY, SUPPORTING A 1004 MB SFC LOW. A RIDGE
OF HIGH PRESSURE STRETCHES FROM THE MACKENZIE DELTA SOUTHWARD INTO
NORTHERN MB. A WEAK RIDGE ALSO SITS OVER SOUTHERN MB. AN UPPER LOW IS
OVER THE HIGH ARCTIC, SUPPORTING A 1002 MB SURFACE LOW.

DISCUSSION...

WESTERN PRAIRIES...A SURFACE LOW OVER SOUTHEASTERN ALBERTA IS
BRINGING SNOW TO NORTHERN ALBERTA AND SASKATCHEWAN OVER THE NEXT
24-36 HOURS. BRIEF FREEZING RAIN WAS REPORTED THIS MORNING IN
LLOYDMINSTER, BUT THE RISK HAS LARGELY DIMINISHED AS TEMPERATURES ARE
WARMING UP AND PRECIP IS MOVING OUT OF THE REGION. SNOWFALL
ACCUMULATIONS THROUGH NORTHERN ALBERTA AND SASKATCHEWAN WILL
GENERALLY BE IN THE 2-5 CM RANGE.

EASTERN PRAIRIES...FOG THAT SPREAD OVER PARTS OF SOUTHERN MANITOBA
LAST NIGHT IS LIFTING THIS MORNING AND THE ADVISORY HAS BEEN ENDED.
DENSE FOG IS NOT FORECAST TO RETURN AGAIN TONIGHT. THE SFC LOW OVER
SOUTHERN SK WILL TRACK NORTHEAST TODAY, WITH PRECIP SPREADING ACROSS
SK AND THEN CENTRAL AND NORTHERN MB OVERNIGHT INTO FRIDAY. FROM THE
NRN GRAINBELT OF SK INTO NRN MB, PRECIP WILL MAINLY FALL AS SNOW,
WITH TOTAL ACCUMS IN THE 3-7 CM RANGE BY FRIDAY EVENING.

NT...A SECONDARY TROUGH MOVING THROUGH THE NWT WILL BRING A WIDE
SWATH OF 2-4 CM OF SNOW TO REGIONS BETWEEN GREAT SLAVE LAKE AND THE
MACKENZIE DELTA. OTHERWISE, PERSISTENT STRATUS CONTINUES TO MAKE
TEMPERATURE FORECASTING DIFFICULT FOR THE TERRITORY. TEMPERATURES
REMAIN GENERALLY STEADY UNDER STRATUS, WHERE GUIDANCE IS SUGGESTING
LARGE DIURNAL VARIATION.

EASTERN ARCTIC...THE LOW OVER HUDSON BAY CONTINUES TO AFFECT THE
REGION TODAY, WITH 5 TO 10 CM OF SNOW FORECAST FOR SOUTHEASTERN
BAFFIN ISLAND, TODAY.

END/SPC-WPG/STAUNTON