608
FXCN01 CWHF 171907
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
FRIDAY 17 APR
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KEY FORECAST POINTS:
- CONDITIONS DETERIORATING SATURDAY NIGHT AND REMAINING POOR UNTIL
MONDAY.
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SHORT RANGE DISCUSSION FOR 1800Z 17 APR TO 0300Z 19 APR.
MODEL DISCUSSION: USED RDPS.
CONFIDENCE: MODERATE TO HIGH.
COMMENTS/IMPACTS:
A RIDGE WILL BUILD IN FROM THE NORTH THIS EVENING GIVING CLEARING
CONDITIONS. THIS SYSTEM WILL HOLD STEADY ON SATURDAY GIVING
GENERALLY FAIR WEATHER IN A MODERATE TO STRONG EASTERLY FLOW.
CLOUDS MAY SPILL OVER THE REGION IN EASTERLY FLOW SATURDAY. SATURDAY
EVENING CONDITIONS ONCE AGAIN DETERIORATE IN DRIZZLE, FOG AND MIST
AS A LOW PRESSURE SYSTEM APPROACHES FROM THE SOUTH.
LONG RANGE DISCUSSION FOR 0300Z 19 APR TO 0300Z 22 APR.
MODEL DISCUSSION: USED GFS/GDPS.
CONFIDENCE: MODERATE TO HIGH.
COMMENTS/IMPACTS: POOR CONDITIONS CONTINUE THROUGHOUT SUNDAY AND
INTO MONDAY IN SHOWERS, DRIZZLE, FOG AND MIST. MORE CONTINUOUS
SHOWERS CAN BE EXPECTED SUNDAY NIGHT AS THE ASSOCIATED COLD FRONTAL
TROUGH MOVES THROUGH THE AREA. CONDITIONS IMPROVE MONDAY IN THE WAKE
OF THE TROUGH WITH FAIR WEATHER FORECAST FOR TUESDAY AS A RIDGE OF
HIGH PRESSURE BUILDS IN FROM THE WEST.
END/METOC-HFX
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