248
FOCN45 CWWG 141900
SIGNIFICANT WEATHER DISCUSSION ISSUED BY THE PRAIRIE AND ARCTIC STORM
PREDICTION CENTRE OF ENVIRONMENT CANADA AT 2:00 PM CDT TUESDAY
OCTOBER 14 2025.
ALERTS IN EFFECT...NONE IN EFFECT.
SYNOPTIC OVERVIEW...ALOFT, UPPER AIR ANALYSIS SHOWING A DEEP UPPER
LOW OVER HUDSON BAY, WITH UPPER RIDGING OVER THE EASTERN PRAIRIES,
AND AN UPPER TROUGH OVER THE WEST COAST OF THE USA. UPPER LOW OVER
THE HIGH ARCTIC.
LATEST SURFACE ANALYSIS SHOWING A NOW DOUBLE-BARRELLED LOW HAS MOVED
INTO HUDSON BAY. AND A 988 MB LOW OVER VICTORIA ISLAND. HIGH PRESSURE
SETTLING OVER THE PRAIRIES.
DISCUSSION...
AB..FOG DEVELOPMENT LIKELY TONIGHT IN SOUTHERN AB.
SK/MB...NIL SIG WX.
NT...AN IMPULSE CURRENTLY APPROACHING FROM THE GULF OF ALASKA WILL
RESULT IN CYCLOGENESIS EAST OF THE MACKENZIE MOUNTAINS EARLY ON
WEDNESDAY. A SWATH OF PRECIPITATION WILL TRACK EASTWARD WITH THIS LOW
AS IT MOVES ACROSS THE CENTRAL NT. PRECIPITATION WILL PRIMARILY FALL
AS RAIN BUT COULD MIX WITH SNOW WEST OF THE RIVER. GUSTY WINDS WILL
DEVELOP WITH THE SYSTEM, WITH THE STRONGEST WINDS EXPECTED IN REGIONS
SURROUNDING GREAT SLAVE LAKE WEDNESDAY AFTERNOON INTO THE EVENING.
THERE IS ALSO A SLIGHT RISK OF A TS NEAR THE LOW CENTRE ON WEDNESDAY
BUT NOT ENOUGH TO WARRANT COVERAGE IN THE ROUTINE FORECASTS.
NU...THE LOW OVER EASTERN HUDSON BAY WILL IMPACT SOUTHERN BAFFIN
ISLAND EARLY THIS WEEK, WITH SOME MIXED PRECIPITATION, PARTICULARLY
OVER HIGH TERRAIN. NO WARNING AMOUNTS ARE EXPECTED AT ANY TOWNSITES.
END/CARLSEN/ZIOLKOWSKI/VAN LOCHEM/GERGELY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page