757
FXCN01 CWHF 270815
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 0830Z ON
WEDNESDAY 27 MAY
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KEY FORECAST POINTS:
- IFR FLYING CONDITIONS DEVELOPING IN LOWERING CEILINGS
- DRIZZLE DEVELOPING OVERNIGHT
- SHOWERS OR DRIZZLE ON THURSDAY
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SHORT RANGE DISCUSSION FOR 0600Z 27 MAY TO 0300Z 29 MAY.
MODEL DISCUSSION: USED RDPS
CONFIDENCE: HIGH
COMMENTS/IMPACTS: IFR FLYING CONDITIONS ARE EXPECTED TO DEVELOP
TODAY AS A LOW PRESSURE CENTRE APPROACHES FROM MAINE. LOW CEILINGS
AND PATCHY MIST ARE EXPECTED LATER TODAY ALONG WITH A CHANCE OF
SHOWERS OR DRIZZLE. MOISTURE BECOMES MORE WIDESPREAD OVERNIGHT WITH
DRIZZLE EXPECTED AND REDUCED VISIBILITIES IN MIST. SHOWERS OR
DRIZZLE ALONG WITH MIST IS EXPECTED ON THURSDAY AS THE LOW TRACKS
TO THE SOUTH OF NOVA SCOTIA.
LONG RANGE DISCUSSION FOR 0300Z 29 MAY TO 0300Z 01 JUNE.
MODEL DISCUSSION: USED GDPS
CONFIDENCE: HIGH
COMMENTS/IMPACTS: ON FRIDAY THE LOW SLOWLY PULLS OFF TO THE EAST
GIVING A MODERATE NORTHERLY FLOW ALONG WITH A CHANCE OF SHOWERS IN
THE MORNING. SUNNY BREAKS ARE EXPECTED IN THE AFTERNOON. ON SATURDAY
A LIGHT TO MODERATE NORTHEAST FLOW IS EXPECTED BUT MAINLY CLOUDY
SKIES REMAIN. ON SUNDAY A LOW PRESSURE CENTRE DEVELOPS SOUTH OF
NOVA SCOTIA BUT SHOULD TRACK FAR ENOUGH EAST TO KEEP RAIN ONLY OVER
EASTERN PORTIONS OF THE PROVINCE. MAINLY CLOUDY SKIES ARE EXPECTED
IN THE WAKE OF THE LOW ALONG WITH A LIGHT TO MODERATE NORTHERLY
FLOW. TEMPERATURES REMAIN BELOW NORMAL DURING THIS PERIOD.
END/METOC-HFX
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