492
FXCN01 CWHF 250813
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
WEDNESDAY 25 MAR
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KEY FORECAST POINTS:
-SCATTERED FLURRIES THIS MORNING WITH GUSTY SOUTHWEST/WESTERLY
WINDS TODAY.
-A STORM SYSTEM IMPACTING THE REGION WITH RAIN AND MIST ON THURSDAY
AND FRIDAY.
-COOL CONDITIONS FOR THE WEEKEND.
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SHORT RANGE DISCUSSION FOR 0600Z 25 MAR TO 0300Z 27 MAR.
MODEL DISCUSSION: USED HRDPS.
CONFIDENCE: HIGH.
COMMENTS/IMPACTS: A QUICK MOVING TROUGH WILL TRACK THROUGH THE
REGION THIS MORNING GIVING GUSTY WINDS. SOUTHWEST WIND GUSTS OF 35
KNOTS ARE EXPECTED OVER THE APPROACHES AHEAD OF THE TROUGH THIS
MORNING BEFORE VEERING TO THE WEST AND REMAINING GUSTY TO 30 KNOTS
THIS AFTERNOON. THE TROUGH WILL ALSO GIVE A CHANCE OF ISOLATED
FLURRIES THIS MORNING WITH THE POTENTIAL TO BRIEFLY IMPACT
VISIBILITIES. SKY CONDITION WILL IMPROVE LATER THIS MORNING IN THE
WAKE OF THE TROUGH.
FAIR WEATHER TONIGHT WITH HIGH CLOUD BUILDING OVERNIGHT AHEAD OF AN
APPROACHING LOW PRESSURE SYSTEM. THURSDAY WILL SEE DETERIORATING
CONDITIONS IN RAIN AND MIST WITH EXTENSIVE FOG DEVELOPING ALONG
THE COAST AS THE SOUTHERLY FLOW INCREASES. PRECIPITATION MAY BEGIN
AS SNOW OR A RAIN-SNOW MIX ON THURSDAY MORNING BUT NO ACCUMULATION
IS EXPECTED BEFORE SWITCHING TO JUST RAIN.
LONG RANGE DISCUSSION FOR 0300Z 27 MAR TO 0300Z 30 MAR.
MODEL DISCUSSION: USED GDPS.
CONFIDENCE: MODERATE TO HIGH.
COMMENTS/IMPACTS: RAIN AND STRONG WINDS WILL CONTINUE FOR THURSDAY
NIGHT INTO FRIDAY MORNING AHEAD OF THE ASSOCIATED COLD FRONT. THE
LATEST MODEL DATA HAS EASED THE WINDS SLIGHTLY GIVING LESS CHANCE OF
A LEVEL-2 WIND WARNING. CONDITIONS IMPROVE IN THE WAKE OF THE COLD
FRONT LATER ON FRIDAY. SATURDAY AND SUNDAY TO MAINLY SEE A MIX OF
SUN AND CLOUD AS A COLD AIRMASS LINGERS OVER THE AREA.
END/METOC-HFX
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