448
FXCN01 CWHF 071904
KEY FORECAST POINTS:
- LOW LEVEL MOISTURE GIVING EXTENSIVE STRATUS MIST AND FOG WITH
PATCHY DRIZZLE TO THE REGION TODAY INTO THURSDAY.
- UPPER TROUGH GIVING CONVECTIVE SHOWERS WITH A RISK OF
THUNDERSTORMS TODAY INTO TONIGHT.
- LOW PASSING THROUGH GIVING PERIODS OF RAIN SATURDAY.
- IMPROVEMENT SUNDAY THOUGH LINGERING TROUGH GIVING A CHANCE OF
SHOWERS.
SHORT-RANGE DISCUSSION FOR OPS AREA ALPHA AND THE ECHOES, CFB HALIFAX
PROPERTIES AND 12 WING SHEARWATER
PERIOD OF COVERAGE: 1800Z 07 MAY TO 0300Z 09 MAY.
MODEL DISCUSSION: USED RDPS.
CONFIDENCE: GENERALLY HIGH.
COMMENTS/IMPACTS: SIGNIFICANT LOW LEVEL MOISTURE CONTINUES TO GIVE
EXTENSIVE STRATUS MIST AND FOG THAT WILL CONTINUE TO AFFECT THE
REGION INTO THURSDAY. AS AN UPPER TROUGH SLOWLY APPROACHES THE
REGION, EXPECT SHOWERS TO CONTINUE ALONG WITH A RISK OF
THUNDERSTORMS LATE TODAY INTO THIS EVENING. SHOWERS WILL TAPER TO
PATCHY DRIZZLE OVERNIGHT IN THE WAKE OF THE TROUGH THEN END BEFORE
MORNING. THE INTENSE MAY SUN WILL BURN OFF THE CLOUD INLAND
THURSDAY GIVING A MIX OF SUN AND CLOUD OVER THE HARBOUR AND BASIN
WHILE STRATUS MIST AND FOG WILL CONTINUE OVER THE APPROACHES.
OVERNIGHT, AS THE TRAILING FRONTAL TROUGH TRACKS THROUGH, EXPECT
LOW CLOUD WITH PATCHY DRIZZLE AND A CHANCE OF SHOWERS TO MOVE BACK
INTO THE REGION.
LONG-RANGE DISCUSSION FOR OPS AREA ALPHA AND THE ECHOES, CFB HALIFAX
PROPERTIES AND 12 WING SHEARWATER
PERIOD OF COVERAGE: 0300Z 09 MAY TO 0300Z 12 MAY.
MODEL DISCUSSION: USED GDPS.
CONFIDENCE: GENERALLY HIGH.
COMMENTS/IMPACTS: ON FRIDAY.. LINGERING LOW CLOUD GIVING PATCHY
DRIZZLE WILL CONTINUE WHILE A WEAK TROUGH TO THE SOUTH OF THE
PROVINCE WILL GIVE A CHANCE OF SHOWERS. MODELS ARE IN GOOD
AGREEMENT WITH A LOW TRACKING ACROSS THE REGION GIVING PERIODS OF
RAIN SATURDAY. WINDS.. DIRECTION SPECIFICALLY.. COULD BE AN ISSUE
PENDING EXACTLY WHERE THE LOW TRACKS IN TERMS OF VEERING VS BACKING,
THOUGH IN GENERAL, IT WILL BE LIGHT EASTERLY TO START AND STRONG
NORTHWEST ON THE BACK SIDE OF THE SYSTEM. OVERNIGHT SATURDAY,
EXPECT A CLEARING TREND GIVING A MAINLY SUNNY START TO THE DAY
SUNDAY, HOWEVER A LINGERING TROUGH FROM THE SATURDAY LOW WILL
COMBINE WITH AN UPPER FEATURE TO SPREAD CLOUD INTO THE REGION AND A
CHANCE OF SHOWERS.
END/METOC-HFX
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