612
FXCN01 CWHF 201949
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 20 JUNE
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KEY FORECAST POINTS:
NO SIGNIFICANT CHANGE FROM THE PREVIOUS FORECAST DISCUSSION...
- MODERATE TO STRONG SOUTHWEST WINDS BECOMING MODERATE TO STRONG
NORTHWEST LATE THIS AFTERNOON.
- A MIX OF SUN AND CLOUD WITH A CHANCE OF SHOWERS ON SUNDAY WITH
MODERATE NORTHWEST WINDS BACKING TO SOUTHWEST.
- PERIODS OF RAIN LATE ON TUESDAY.
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SHORT RANGE DISCUSSION FOR 1800Z 20 JUNE TO 0300Z 22 JUNE.
MODEL DISCUSSION: USED RDPS.
CONFIDENCE: HIGH.
COMMENTS/IMPACTS: ...
AS A TROUGH MOVES AWAY THIS EVENING NORTHWEST WINDS WILL EASE
AND CLOUD WILL BECOME MORE PATCHY AND BROKEN. HOWEVER THERE
REMAINS A CHANCE OF SHOWERS AS DISSIPATING CONVECTION DRIFTS DOWN
FROM NEW BRUNSWICK.
ON SUNDAY LIGHT TO MODERATE NORTHWEST WINDS BACK TO SOUTHWEST IN
THE AFTERNOON. THE AIRMASS REMAINS SOMEWHAT UNSTABLE AND A MIX OF
SUN AND CLOUD A AND CHANCE OF SHOWERS IS FORECAST.
LONG RANGE DISCUSSION FOR 0300Z 22 JUNE TO 0300Z 25 JUNE.
MODEL DISCUSSION: USED GDPS.
CONFIDENCE: MODERATE TO HIGH.
COMMENTS/IMPACTS: ON MONDAY THE PRESSURE PATTERN IS FORECAST TO BE
FAIRLY FLAT OVER THE MARITIMES AND GENERALLY LIGHT WINDS ARE
EXPECTED. UPPER TROUGHING CONTINUES TO GIVE A SOMEWHAT UNSTABLE
AIRMASS AMD A MIX OF SUN AND CLOUD WITH A CHANCE OF SHOWERS IS
FORECAST ONCE AGAIN.
A LOW PRESSURE SYSTEM IS FORECAST TO APPROACH THE MARITIMES FROM
NEW ENGLAND ON TUESDAY. CLOUD IS FORECAST FOR MUCH OF THE DAY BUT
THE LATEST GDPS RUN DOES NOT HAVE RAIN MOVING INTO THE HALIFAX AREA
UNTIL THE EVENING. THE STRONGER SOUTHERLY WINDS PREVIOUSLY FORECAST
AHEAD OF THE LOW REMAIN OFFSHORE SOUTH OF HALIFAX ON THE LATEST
GDPS RUN.
THE LOW MOVES BY THE REGION EARLY ON WEDNESDAY WITH WINDS BECOMING
LIGHT TO MODERATE SOUTHWEST IN BEHIND IT AND SHOWERS ENDING EARLY.
CLOUD CONTINUES FOR MUCH OF THE DAY BEFORE CLEARING SKIES FORECAST
IN THE EVENING.
END/METOC-HFX
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