935
FXCN01 CWHF 261944
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 2030Z ON
MONDAY 26 OCT
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KEY FORECAST POINTS:
- BECOMING MAINLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS TONIGHT.
- CLEARING EARLY TUESDAY WITH MODERATE TO STRONG NORTHWEST WINDS AND
COOL TEMPERATURES.
- WARMER TEMPERATURES WITH SOUTHWEST WINDS LATER IN THE WEEK.
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SHORT RANGE DISCUSSION FOR 1800Z 26 OCT TO 0300Z 28 OCT.
MODEL DISCUSSION: USED RDPS/HRDPS.
CONFIDENCE: HIGH.
COMMENTS/IMPACTS: A WEAKENING COLD FRONT APPROACHING FROM THE
NORTHWEST WILL CROSS THROUGH NOVA SCOTIA THIS EVENING. MODERATE TO
STRONG SOUTHWEST WINDS AHEAD OF THE FRONT WILL EASE AND VEER TO THE
NORTHWEST AS IT MOVES THROUGH THE REGION. MODERATE TO STRONG NORTH
TO NORTHWEST WINDS ARE FORECAST TO DEVELOP OVERNIGHT IN BEHIND THE
FRONT AND GENERALLY PERSIST THROUGH TUESDAY BEFORE DIMINISHING IN
THE EVENING.
MID LEVEL CLOUD AHEAD OF THE FRONT WILL MOVE OVER THE REGION THIS
EVENING. RDPS/HRDPS SHOW ONLY ISOLATED SHOWERS ON THE FRONT AS IT
MOVES THROUGH. LOWER BASED SC IS FORECAST DURING THE OVERNIGHT
HOURS IN BEHIND THE FRONT. AGAIN ISOLATED EMBEDDED TCU WITHIN THE
UNSTABLE AIRMASS GIVES A SLIGHT CHANCE OF SHOWERS. CONDITIONS
SHOULD REMAIN VFR. SKIES BEGIN TO BREAK UP LATE OVERNIGHT THEN
BECOME MAINLY SUNNY EARLY ON TUESDAY.
LONG RANGE DISCUSSION FOR 0300Z 28 OCT TO 0300Z 31 OCT.
MODEL DISCUSSION: USED GDPS.
CONFIDENCE: HIGH.
COMMENTS/IMPACTS: ON WEDNESDAY A LARGE AREA OF HIGH PRESSURE SLIDES
SOUTH OF NOVA SCOTIA. SUNNY SKIES ARE EXPECTED IN A LIGHT TO
MODERATE WESTERLY FLOW AS THE HIGH SLIDES TO OUR SOUTH. ON THURSDAY
AND FRIDAY A SOUTHWEST FLOW DEVELOPS AND A RETURN TO WARMER
TEMPERATURES.
END/METOC-HFX
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