805
FXCN01 CWHF 120739
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
SATURDAY 12 SEP
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KEY FORECAST POINTS:
-GENERALLY CLEAR AND CALM TODAY AND TONIGHT.
-SHOWERS EXPECTED SUNDAY NIGHT.
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SHORT-RANGE DISCUSSION FOR 0600Z 12 SEP TO 0300Z 14 SEP.
MODEL DISCUSSION: CONSULTED CHIEFLY HRDPS/RDPS.
CONFIDENCE: HIGH.
COMMENTS/IMPACTS: A RIDGE OF HIGH PRESSURE MOVING EASTWARD THROUGH
THE MARITIMES WILL GIVE GENERALLY CLEAR AND CALM CONDITIONS TO THE
HALIFAX REGION TODAY AND TONIGHT AS A TROUGH SLOWLY APPROACHES FROM
THE WEST. ON SUNDAY, THE INCOMING TROUGH WILL GIVE INCREASING
CLOUDINESS AND MODERATE SOUTHERLY WINDS. THERE WILL BE A CHANCE OF
SHOWERS SUNDAY EVENING AS PRECIPITATION ASSOCIATED WITH THE TROUGH
STARTS TO PUSH INTO THE GREATER REGION.
LONG-RANGE DISCUSSION FOR 0300Z 14 SEP TO 0300Z 17 SEP.
MODEL DISCUSSION: CONSULTED CHIEFLY RDPS/GDPS.
CONFIDENCE: HIGH.
COMMENTS/IMPACTS: SHOWERS ARE EXPECTED FOR HALIFAX ON SUNDAY NIGHT
AS THE TROUGH MOVES THROUGH, BUT AMOUNTS SHOULD BE BELOW THE
ADVISORY THRESHOLD OF 25 MM. BY SUNRISE MONDAY MORNING, THE BULK
OF THE SHOWERS SHOULD BE EAST OF THE CITY BUT A SMALLER, SECONDARY
TROUGH SWINGING DOWN FROM THE NORTHWEST WILL GIVE A CHANCE OF SOME
MORE SHOWERS THROUGHOUT THE DAY AND INTO MONDAY NIGHT. ON TUESDAY,
A RIDGE OF HIGH PRESSURE WILL PUSH INTO THE MARITIMES FROM THE WEST
AND PUT AN END TO ANY SHOWER ACTIVITY. WEDNESDAY SHOULD BE JUST A
MIX OF SUN AND CLOUD AS MORE HIGH PRESSURE PUSHES INTO THE REGION.
WESTERLY WINDS ARE CURRENTLY EXPECTED TO REMAIN AT MODERATE
STRENGTH OR LESS FOR THE DURATION OF THE LONG-RANGE PERIOD.
END/METOC-HFX
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