915
FXCN01 CWHF 180809
PERIOD OF COVERAGE: 0000Z 18 APR TO 1200Z 19 APR.
SFC COMMENTARY: AS ANALYZED.
MODEL DISCUSSION: USED RDPS.
CONFIDENCE: HIGH.
COMMENTS/IMPACTS: A LOW PRESSURE CENTRE TO THE EAST OF NEWFOUNDLAND
COMBINED WITH A RIDGE THROUGH THE GULF OF MAINE WILL GIVE A
MODERATE TO STRONG SOMETIMES GUSTY NORTHERLY FLOW TO THE REGION.
ALTHOUGH A WIND ADVISORY IS NOT IN EFFECT IT IS POSSIBLE THE GUSTS
WILL BE IN THE LOW 20S NEARING 25 FOR A SHORT TIME THIS MORNING.
OVERALL THOUGH GUST TO 20 ARE FORECAST FOR THE DAY.
SOME SC/CU COMING OFF THE GULF OF ST LAWRENCE IN THE NORTHERLY
FLOW LIES OVER THE HALIFAX AREA. AS THAT CLOUD BLOWS THROUGH MORE
SUNSHINE COULD LEAD TO INLAND HEATING AND AFTERNOON CLOUD
DEVELOPING. SO OVERALL A MIX OF SUN AND CLOUD IS FORECAST FOR THE
DAY.
TONIGHT THE RIDGE BEGINS TO MOVE FURTHER EAST LEADING TO
DIMINISHING WINDS AND CLEARING SKIES. THE RIDGE MOVES THROUGH NOVA
SCOTIA ON FRIDAY AND A SUNNY DAY IS FORECAST. LIGHT WINDS BECOME A
LIGHT TO MODERATE SOUTHWEST IN BEHIND THE RIDGE.
LONG RANGE DISCUSSION VALID: 20 APR THRU 22 APR. ON SATURDAY A LARGE
LOW PRESSURE SYSTEM OVER NORTHERN QUEBEC PUSHES AN ASSOCIATED
TROUGH EASTWARD INTO THE MARITIMES. A DEVELOPING AREA OF SHOWERS
MOVES OVER THE LOCAL REGION IN THE AFTERNOON WITH THE TIMING
BETWEEN THE GDPS AND GFS MORE CONSISTENT ON TONIGHTS MODEL RUNS.
BOTH OF THOSE MODELS NOW SHOW A LOW DEVELOPING ALONG THE COAST OF
NOVA SCOTIA WITHIN THE TROUGH SATURDAY EVENING. THIS RESULTS IN A
MORE CONTINUOUS AREA OF RAIN DEVELOPING OVER THE MARITIMES.
BY SUNDAY MORNING THE LOW IS MOVING INTO NEWFOUNDLAND AND A STRONG
GUSTY WEST WIND IN THE WAKE OF THE FEATURE BRINGS CLEARING SKIES
FOR NOVA SCOTIA.
ON MONDAY AND LOW OR TROUGH PASSING BY TO THE NORTH OF THE
MARITIMES LEADS TO A WEST TO SOUTHWEST FLOW FOR THE LOCAL AREA AND
A MIX OF SUN AND CLOUD.
END/METOC-HFX
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