A HURRICANE WARNING IS IN EFFECT FOR CENTRAL AND EASTERN NOVA
SCOTIA, AND A HURRICANE WATCH IS IN EFFECT FOR SOUTHWESTERN
NEWFOUNDLAND.
TROPICAL STORM WATCHES ARE IN EFFECT FOR WESTERN NOVA SCOTIA,
SOUTHEASTERN NEW BRUNSWICK, PRINCE EDWARD ISLAND, THE MAGDALEN
ISLANDS AND NORTHWESTERN NEWFOUNDLAND.
ACCORDING TO THE LATEST FORECAST GUIDANCE, THE MOST LIKELY TRACK
PROJECTION BRINGS HURRICANE DORIAN SOUTH OF THE MARITIMES ON
SATURDAY, PASSING NEAR OR OVER HALIFAX NOVA SCOTIA SATURDAY NIGHT,
AND THEN OVER THE EASTERN GULF OF ST. LAWRENCE WATERS OR WESTERN
NEWFOUNDLAND BY SUNDAY MORNING.
SEVERE WINDS AND TORRENTIAL RAIN WILL HAVE MAJOR IMPACTS FOR
SOUTHEASTERN NEW BRUNSWICK, PRINCE EDWARD ISLAND, NOVA SCOTIA,
WESTERN NEWFOUNDLAND, AND THE QUEBEC LOWER NORTH SHORE, AND THE
MAGDALEN ISLANDS. LARGE WAVES ARE EXPECTED FOR THE ATLANTIC COASTS
OF NOVA SCOTIA, NEWFOUNDLAND AND FOR EASTERN PORTIONS OF THE GULF OF
ST. LAWRENCE. FINALLY, STORM SURGE, COMBINED WITH LARGE WAVES AND
POUNDING SURF, MAY GIVE FLOODING FOR PARTS OF NOVA SCOTIA, PRINCE
EDWARD ISLAND, NEWFOUNDLAND, AND THE MAGDALEN ISLANDS.
A. WIND.
MOST REGIONS WILL EXPERIENCE TROPICAL STORM FORCE WINDS OF 90 TO 110
KM/H, BEGINNING OVER SOUTHWESTERN NOVA SCOTIA SATURDAY MORNING, IN
THE AFTERNOON OVER EASTERN NOVA SCOTIA, AND TOWARDS EVENING FOR
PRINCE EDWARD ISLAND, THE MAGDALEN ISLANDS, AND SOUTHWESTERN
NEWFOUNDLAND. NEAR AND TO THE SOUTH OF THE FORECAST TRACK, WINDS
WILL REACH HURRICANE FORCE OF 120 KM/H OR MORE. BEHIND THE STORM,
THERE IS A POSSIBILITY OF STORM TO HURRICANE FORCE NORTHWESTERLIES.
WIND IMPACTS WILL LIKELY BE ENHANCED BY FOLIAGE ON THE TREES,
CAUSING BROKEN BRANCHES AND TREE FALLS, RESULTING IN POWER OUTAGES,
BLOCKING OF ROADS, AND OTHER TYPE OF DAMAGES.
HURRICANE FORCE WIND WARNINGS ARE IN EFFECT FOR EASTERN NOVA SCOTIA
AND EASTERN PRINCE EDWARD ISLAND. WIND WARNINGS ARE IN EFFECT FOR
SOUTHWESTERN NOVA SCOTIA, WESTERN PRINCE EDWARD ISLAND, AND THE
MAGDALEN ISLANDS.
B. RAINFALL.
RAINFALL WILL BE A MAJOR FACTOR AS TORRENTIAL RAIN MAY LEAD TO
FLOODING. THE HIGHEST RAINFALL AMOUNTS ARE EXPECTED OVER NOVA
SCOTIA, PRINCE EDWARD ISLAND, AND THE MAGDALEN ISLAND WHERE 50 TO
100 MM ARE EXPECTED. FORECAST GUIDANCE IS ALSO SUGGESTING A SWATH IN
EXCESS OF 150 MM NORTH AND WEST OF DORIAN'S TRACK. SOME DISTRICTS
HAVE RECEIVED LARGE QUANTITIES OF RAIN LAST WEEK, AND WITH THE SOIL
MOISTURE STILL VERY HIGH, EXCESSIVE RUNOFF MAY EXACERBATE THE
FLOODING POTENTIAL. THIS COMBINED WITH THE SEVERE WINDS MAY RESULT
IN DAMAGE DUE TO FALLING TREES.
RAINFALL WARNING FOR WESTERN NOVA SCOTIA, WESTERN PRINCE EDWARD
ISLAND, EXTREME EASTERN AND SOUTHERN NEW BRUNSWICK.
C. SURGE/WAVES.
THERE WILL ALSO BE ROUGH AND POUNDING SURF, ESPECIALLY FOR PARTS OF
NOVA SCOTIA, NEWFOUNDLAND AND THE GULF OF ST. LAWRENCE. WAVES OF 7
TO 10 METRES WILL REACH THE SOUTHWESTERN SHORE OF NOVA SCOTIA ON
SATURDAY AND SPREAD TO THE EASTERN SHORE SATURDAY NIGHT. THESE WAVES
WILL LIKELY REACH SOUTHERN NEWFOUNDLAND BY SUNDAY MORNING WITH WAVES
NEARING 12 METRES. WAVES OF 4 TO 7 METRES WILL IMPACT NORTH FACING
COASTS OF THE GULF OF ST. LAWRENCE. NOTE THAT WAVES WILL BREAK
HIGHER ALONG SOME OF THE COASTLINES, AND DANGEROUS RIP CURRENTS ARE
LIKELY. PLEASE EXERCISE EXTREME CAUTION.
STORM SURGE IS AN ISSUE, MAINLY FOR THE ATLANTIC COAST OF NOVA
SCOTIA, THE NORTH COAST OF PRINCE EDWARD ISLAND, SOUTHWESTERN
NEWFOUNDLAND, AND THE MAGDALEN ISLANDS. CURRENT GUIDANCE SUGGESTS
WATER LEVELS APPROACHING INUNDATION LEVELS DURING HIGH TIDE.
HOWEVER, WHEN COMBINED WITH ROUGH AND POUNDING SURF, THERE MAY BE
FLOODING AND OVERWASH OF WAVES.
STORM SURGE WARNINGS WILL BE ISSUED FOR BLANC SABLON, CHEVERY AND
ANTICOSTI ISLAND, AS WELL AS THE MAGDALEN ISLANDS, OVERNIGHT
