431
FXCN01 CWHF 181936
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
SATURDAY 18 OCT
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KEY FORECAST POINTS:
NO SIGNIFICANT CHANGES FROM THE PREVIOUS FORECAST DISCUSSION...
- MAINLY CLOUDY WITH EASING WINDS TONIGHT.
- CLOUD LIFTING AND BREAKING UP ON SUNDAY.
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SHORT RANGE DISCUSSION FOR 1800Z 18 OCT TO 0300Z 20 OCT.
MODEL DISCUSSION: USED RDPS.
CONFIDENCE: HIGH.
COMMENTS/IMPACTS: A LOW PRESSURE SYSTEM SPINNING WELL SOUTH OF NOVA
SCOTIA CONTINUES TO GIVE MODERATE TO STRONG GUSTY NORTHERLY WINDS
TO THE LOCAL AREA. GENERALLY MVFR TO VFR SC WILL CONTINUE TO STREAM
OVER THE REGION AND THERE REMAINS A SLIGHT CHANCE OF SHOWERS OR
PATCHY DRIZZLE.
WINDS WILL DIMINISH SOMEWHAT TONIGHT AND FURTHER ON SUNDAY AS THE
LOW MOVES OFF TO THE EAST AND A RIDGE OF HIGH PRESSURE MOVES INTO
THE MARITIMES. CEILINGS SHOULD LIFT SUNDAY MORNING WITH CLOUD
BREAKING UP SOMEWHAT IN THE AFTERNOON.
LONG RANGE DISCUSSION FOR 0300Z 20 OCT TO 0300Z 23 OCT.
MODEL DISCUSSION: USED GDPS.
CONFIDENCE: HIGH.
COMMENTS/IMPACTS: THE RIDGE EXITS THE REGION ON MONDAY AND LIGHT
WINDS GIVE WAY TO A LIGHT TO MODERATE SOUTHEAST FLOW AHEAD OF THE
NEXT TROUGH. LOW CLOUD MOVES IN AHEAD OF THE TROUGH AS WELL.
ON TUESDAY THE TROUGH MOVES THROUGH THE MARITIMES BRINGING SHOWERS
AND STRONG SOUTHEAST WINDS AHEAD OF IT. LATER IN THE DAY SHOWERS
END AND WINDS SHIFT TO MODERATE TO STRONG SOUTHWEST AFTER THE
TROUGH MOVES THROUGH. GDPS AND GFS TIMINGS ARE SIMILAR.
A MIX OF SUN AND CLOUD AND SOUTHWEST WINDS ARE FORECAST FOR
WEDNESDAY IN THE WAKE OF THE TROUGH.
END/METOC-HFX
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