118
FXCN01 CWHF 160809
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
THURSDAY 16 APR
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KEY FORECAST POINTS:
-POOR CONDITIONS IN STRATUS TODAY AND FRIDAY.
-IMPROVING CONDITIONS FOR SATURDAY.
-A SYSTEM TO GIVE POOR CONDITIONS IN RAIN AND DRIZZLE FOR SUNDAY
INTO MONDAY.
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SHORT RANGE DISCUSSION FOR 0600Z 16 APR TO 0300Z 18 APR.
MODEL DISCUSSION: USED HRDPS.
CONFIDENCE: HIGH.
COMMENTS/IMPACTS: POOR CONDITIONS CAN BE EXPECTED TODAY IN A LIGHT
EASTERLY FLOW. LOW STRATUS CEILINGS WITH PATCHY DRIZZLE, MIST AND
FOG CAN BE EXPECTED FOR TODAY AND TONIGHT. A TROUGH WILL GIVE
SHOWERS TO THE REGION OVERNIGHT AND INTO FRIDAY WITH LOW CEILINGS
AND VISIBILITIES PERSISTING THROUGHOUT THE DAY.
LONG RANGE DISCUSSION FOR 0300Z 18 APR TO 0300Z 21 APR.
MODEL DISCUSSION: USED GDPS.
CONFIDENCE: MODERATE TO HIGH.
COMMENTS/IMPACTS: FAIR CONDITIONS FOR SATURDAY AS A RIDGE OF HIGH
PRESSURE BUILDS IN FROM THE NORTH. THIS RIDGE WILL TRACK EAST OF THE
REGION ON SATURDAY EVENING WITH LOW LEVEL MOISTURE BUILDING OVER THE
AREA AHEAD OF A LOW PRESSURE SYSTEM APPROACHING FROM THE WEST.
SUNDAY WILL SEE AN INCREASED SOUTHERLY FLOW GIVING DRIZZLE WITH
EXTENSIVE MIST AND FOG. THE ASSOCIATED COLD FRONT WILL TRACK THROUGH
NOVA SCOTIA SUNDAY NIGHT INTO MONDAY GIVING SHOWERS. CONDITIONS
IMPROVE ON MONDAY IN THE WAKE OF THE FRONT.
END/METOC-HFX
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