379
FXCN01 CWHF 050918
FORECAST DISCUSSION FOR OPS AREA ALPHA AND THE ECHOES, CFB HALIFAX
PROPERTIES AND 12 WING SHEARWATER ISSUED BY AVIATION AND DEFENCE
SERVICES OF ENVIRONMENT AND CLIMATE CHANGE CANADA AT 0930Z ON
THURSDAY 05 MAR
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KEY FORECAST POINTS:
- BECOMING MAINLY CLOUDY WITH A CHANCE OF FLURRIES THIS MORNING
ALONG WITH FALLING TEMPERATURES.
- LINGERING CLOUD THROUGH TONIGHT AND FRIDAY WITH A COOL NORTHEAST
TO EAST FLOW.
- SOUTH TO SOUTHWEST WINDS WARMER TEMPERATURES BUT SHOWERS AND
DRIZZLE ON THE WEEKEND.
===================================================================
SHORT RANGE DISCUSSION FOR 0600Z 05 MAR TO 0400Z 07 MAR.
MODEL DISCUSSION: USED RDPS.
CONFIDENCE: HIGH.
COMMENTS/IMPACTS: A BRIEF PERIOD OF MODERATE TO STRONG NORTH WINDS
ARE FORECAST THIS MORNING IN THE WAKE OF A PASSING COLD FRONT. THE
FRONT WILL BRING INCREASING CLOUD EARLY THIS MORNING WITH PERHAPS A
CHANCE OF A LIGHT FLURRY. AIR TEMPERATURES ARE EXPECTED TO FALL
SOMEWHAT THIS MORNING BEFORE BECOMING STEADY.
A RIDGE LINE BUILDS OVER THE NORTHEAST MARITIMES LATER THIS
MORNING THEN GIVE LIGHT TO MODERATE NORTHEAST TO EAST WINDS.
CLOUDY SKIES ARE FORECAST TONIGHT AND FALLING TEMPERATURE WILL GIVE
MODERATE WIND CHILL CONDITIONS OVERNIGHT IN THE NORTHEAST FLOW.
THE RIDGE LINE IS FORECAST TO LINGER THROUGH FRIDAY AND A COOL
CLOUDY EASTERLY FLOW WILL CONTINUE. THE RIDGE WILL KEEP A LOW
FORECAST TO MOVE BY THE REGION OFF TO THE SOUTH AND IT NO LONGER
LOOKS TO IMPACT THE MARITIMES ON FRIDAY.
LONG RANGE DISCUSSION FOR 0400Z 07 MAR TO 0400Z 10 MAR.
MODEL DISCUSSION: USED GDPS.
CONFIDENCE: MODERATE TO HIGH.
COMMENTS/IMPACTS: ON SATURDAY A LOW OVER NORTHERN QUEBEC IS
CONNECTED BY TROUGHING TO A LOW OVER THE GREAT LAKES REGION. THE
WHOLE TROUGHING FEATURE GRADUALLY PUSHES EASTWARD AND BRINGS
SOUTHERLY WINDS WARMING AIR TEMPERATURES AND INCREASING MOISTURE
AHEAD OF IT. CLOUD OCCASIONAL DRIZZLE AND MIST AND FOG ARE FORECAST
ON SATURDAY. AS THE GREAT LAKES LOW MOVES THROUGH NORTHERN
ATLANTIC CANADA EARLY SUNDAY TRAILING TROUGHING CONTINUES TO SLOWLY
APPROACHES THE MARITIMES. STRONG SOUTHWEST WITH SHOWERS DRIZZLE
MIST AND FOG CONTINUES. THE TROUGH FINALLY PUSHES THROUGH THE
REGION SUNDAY EVENING.
A WESTERLY FLOW DRIES THINGS OUT SUNDAY NIGHT IN BEHIND THE TROUGH
AND A MAINLY SUNNY DAY IS FORECAST FOR MONDAY. HOWEVER THE NEXT
TROUGH IS MOVING EASTWARD TOWARD NORTHERN ATLANTIC CANADA AND IT
BRINGS AND INCREASING SOUTHWEST FLOW AHEAD OF IT.
END/METOC-HFX
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