Extratropical Storm Fiona (Now TS Strength) Leaves Widespread Devastation In Her Wake
11:28 PM ADT Saturday 24 September 2022
Tropical cyclone information statement for:
Newfoundland and Labrador:
Burgeo - Ramea
Burin Peninsula - Southern Avalon
Cartwright to Black Tickle
Channel-Port aux Basques and vicinity
Connaigre
Deer Lake - Humber Valley
Green Bay - White Bay
Norman Bay to Lodge Bay
Northern Peninsula East
Parson's Pond - Hawke's Bay
Port Saunders and the Straits
Red Bay to L'Anse-au-Clair
West Coast
Québec - south:
Blanc-Sablon
Chevery
The next information statement will be issued by 3:00 am. ADT
Post-Tropicsl Storm Fiona is weakening we as it moves northeastward across the northeastern Gulf of St. Lawrence. Conditions have improved over the Maritimes, areas of Quebec adjacent to the western Gulf of St. Lawrence, and portions of eastern and central Newfoundland.
1. Summary of basic information at 12.00 am ADT.
Location: 49.6 North 59.3 West
About 125 kilomatres north-northwest of Stephenville, Newfoundland.
Present movement: Northeast at 35 kilometres per hour.
Summary of latest information.
Fiona continues to give strong winds and large waves in the eastern Gulf of St. Lawrence region. Wind, storm surge and high water level warnings remain in effect for the west coast of Newfoundland and portions of the Quebec Lower North Shore.
Strong winds are expected to develop over southeastern Labrador overnight tonight . A wind warning is in effect Red Bay to L'Anse au Clair.
Large waves and pounding surf will persist tonight along the south coast of Newfoundland. A storm surge warning remains in effect.
Please continue to monitor alerts issued by the Canadian Hurricane Centre and forecasts issued by Environment Canada.
FXCN31 CWHX 250000
Tropical cyclone technical information statement issued by the
Canadian Hurricane Centre of Environment Canada at 8.40 PM ADT
Saturday 24 September 2022.
The next statement will be issued by 3.00 AM ADT
1. Current position, strength, central pressure and motion
At 9.00 PM ADT, post-tropical storm Fiona was located near latitude
48.8 N and longitude 59.8 W, about 52 nautical miles or 96 km
west-northwest of Stephenville. Maximum sustained winds are estimated
at 60 knots (111 km/h) and central pressure at 955 MB. Fiona is
moving northeast at 30 knots (56 km/h).
2. Forecast position, central pressure and strength
Date time lat lon MSLP Max wind
ADT MB kts kmh
Sep 24 9.00 PM 48.8N 59.8W 955 60 111 post-tropical
Sep 25 3.00 AM 50.2N 58.9W 960 55 102 post-tropical
Sep 25 9.00 AM 52.4N 57.6W 965 50 93 post-tropical
Sep 25 3.00 PM 54.5N 57.1W 975 45 83 post-tropical
Sep 25 9.00 PM 56.1N 57.5W 985 40 74 post-tropical
3. Technical discussion
A. Analysis
Post-tropical storm Fiona is now a large and powerful mid-latitude
system. Local gusts to near - hurrcane force persist for parts of
Southwestern Newfoundland and Îles-de-la-Madeleine. Wind radii have
increased significantly over the last 12 hours. A wide band of storm
force winds are east of the track and a very large area of gales
surround the entire system.
B. Prognostic
Fiona is moving off to the northeast and will slowly accelerate
towards Southeast Labrador. While this is happenning it will begin to
interact with an upper trough and curve northwards. The system will
start to develop frontal features tonight, albeit not too strong.
Model guidance is generally very good, and the track is effectively
unchanged. The storm will then dissipate over the Labrador Sea on
Sunday night.
C. Predicted wind radii (NM)
Time gales storms hurricane
NE SE SW NW NE SE SW NW NE SE SW NW
25/00Z 300 300 370 240 160 120 70 70 0 0 0 0
25/06Z 280 250 250 220 140 120 60 60 0 0 0 0
25/12Z 240 240 240 240 120 100 60 60 0 0 0 0
25/18Z 220 220 160 160 0 0 0 0 0 0 0 0
26/00Z 200 200 140 120 0 0 0 0 0 0 0 0
END/HATT/CLEMENTS/MERCER
000
WTNT32 KNHC 242040
TCPAT2
BULLETIN
Post-Tropical Cyclone Fiona Advisory Number 42
NWS National Hurricane Center Miami FL AL072022
500 PM AST Sat Sep 24 2022
...HURRICANE AND TROPICAL STORM WARNINGS DISCONTINUED IN ATLANTIC
CANADA...
...THIS IS THE LAST NHC ADVISORY...
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...48.4N 60.5W
ABOUT 80 MI...130 KM NW OF PORT AUX BASQUES NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...NE OR 40 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...952 MB...28.12 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
The Canadian Hurricane Centre has discontinued all of the tropical
storm and hurricane warnings for Atlantic Canada.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
There are no coastal tropical storm or hurricane watches or
warnings. See warnings and forecasts issued by Environment Canada
at https://weather.gc.ca/ for more information.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
----------------------
At 500 PM AST (2100 UTC), the center of Post-Tropical Cyclone Fiona
was located near latitude 48.4 North, longitude 60.5 West. The
post-tropical cyclone is moving toward the northeast near 8 mph (13
km/h). A faster north-northeast or north motion is expected
through Monday. On the forecast track, the center of Fiona will
move across Labrador and over the Labrador Sea late tonight and
Sunday.
Maximum sustained winds are near 70 mph (110 km/h) with higher
gusts. Gradual weakening is expected during the next couple of
days.
Tropical-storm-force winds extend outward up to 550 miles (890 km)
from the center.
The estimated minimum central pressure based on surface
observations is 952 mb (28.12 inches).
HAZARDS AFFECTING LAND
----------------------
Key messages for Fiona can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC
and on the web at hurricanes.gov/text/MIATCDAT2.shtml.
WIND: Gale-force and storm-force winds are expected to continue
across portions of Atlantic Canada through early Sunday.
RAINFALL: Fiona is forecast to produce 1 to 2 inches (25 to 50 mm)
of rainfall across portions of Atlantic Canada, with storm total
maxima as high as 10 inches (250 mm) across Nova Scotia, New
Brunswick, Prince Edward Island, and western Newfoundland. Flooding
is expected, some of which could be significant.
STORM SURGE: A dangerous storm surge is expected to produce coastal
flooding in portions of Atlantic Canada in areas of onshore winds.
Near the coast, the surge will be accompanied by large and
destructive waves.
SURF: Swells generated by Fiona are affecting Atlantic Canada, the
northeastern United States coast, and Bermuda. The swells are
likely to cause life-threatening surf and rip current conditions.
Please consult products from your local weather office.
NEXT ADVISORY
-------------
This is the last public advisory issued by the National Hurricane
Center on Fiona. For more information, see forecasts and warnings
issued by Environment Canada at https://weather.gc.ca/. Additional
information can also be found in High Seas Forecasts issued by the
National Weather Service, under AWIPS header NFDHSFAT1, WMO header
FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php
$$
Forecaster Cangialosi
000
WTNT42 KNHC 242040
TCDAT2
Post-Tropical Cyclone Fiona Discussion Number 42
NWS National Hurricane Center Miami FL AL072022
500 PM AST Sat Sep 24 2022
Fiona remains a large and potent extratropical low pressure system.
Even though the maximum winds have decreased just below
hurricane-force, ASCAT data and surface observations show that
Fiona has a very large wind field. The initial wind speed is
estimated to be 60 kt.
Fiona has slowed down significantly, and the system is now moving
northeastward at 7 kt. A faster north to north-northeast motion is
expected, taking the center of the system across Labrador tonight
and early Sunday. The NHC track forecast is similar to the
previous one.
Since the tropical warnings have been discontinued for Atlantic
Canada, this is the last NHC advisory on Fiona. For information on
this system, see forecasts issued by Environment Canada at
https://weather.gc.ca/. Additional information can be found in
High Seas Forecasts issued by the National Weather Service, under
AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online
at ocean.weather.gov/shtml/NFDHSFAT1.php
Key Messages:
1. Fiona is forecast to continue to affect portions of Atlantic
Canada through early Sunday, and significant impacts from high
winds, storm surge, and heavy rainfall are expected.
2. Heavy rains from Fiona are expected to continue to impact
portions of Atlantic Canada into Sunday. This rainfall is expected
to produce flooding, some of which could be significant.
3. Large swells generated by Fiona are expected to cause
life-threatening surf and rip current conditions along the coast of
the northeast United States, Bermuda, and Atlantic Canada during
the next couple of days.
FORECAST POSITIONS AND MAX WINDS
INIT 24/2100Z 48.4N 60.5W 60 KT 70 MPH...POST-TROP/EXTRATROP
12H 25/0600Z 50.6N 59.3W 50 KT 60 MPH...POST-TROP/EXTRATROP
24H 25/1800Z 54.9N 58.4W 40 KT 45 MPH...POST-TROP/EXTRATROP
36H 26/0600Z 58.4N 58.6W 35 KT 40 MPH...POST-TROP/EXTRATROP
48H 26/1800Z 60.7N 57.7W 35 KT 40 MPH...POST-TROP/EXTRATROP
60H 27/0600Z 63.1N 56.1W 35 KT 40 MPH...POST-TROP/EXTRATROP
72H 27/1800Z...DISSIPATED
$$
Forecaster Cangialosi
ZCZC MIATCPAT2 ALL
TTAA00 KNHC DDHHMM
BULLETIN
Post-Tropical Cyclone Fiona Advisory Number 40
NWS National Hurricane Center Miami FL AL072022
500 AM AST Sat Sep 24 2022
...CENTER OF FIONA NOW CROSSING EASTERN NOVA SCOTIA...
...HIGH WINDS AND HEAVY RAINS CONTINUE...
SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...46.0N 61.0W
ABOUT 160 MI...255 KM NE OF HALIFAX NOVA SCOTIA
MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H
PRESENT MOVEMENT...N OR 0 DEGREES AT 26 MPH...43 KM/H
MINIMUM CENTRAL PRESSURE...931 MB...27.50 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
None.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Warning is in effect for...
* Nova Scotia from Hubbards to Brule
* Prince Edward Island
* Isle-de-la-Madeleine
* Newfoundland from Parson's Pond to Francois
A Tropical Storm Warning is in effect for...
* St. Andrews New Brunswick to west of Hubbards Nova Scotia
* West of Brule Nova Scotia to Cap Madeleine Quebec
* Anticosti Island
* Sheldrake Quebec to north of Parson's Pond Newfoundland
* Boat Harbor to Hare Bay Newfoundland
* Francois to St Lawrence Newfoundland
A Tropical Storm Watch is in effect for...
* North of Boat Harbor Newfoundland to West Bay Labrador
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
----------------------
At 500 AM AST (0900 UTC), the center of Post-Tropical Cyclone Fiona
was located near latitude 46.0 North, longitude 61.0 West. The
post-tropical cyclone is moving toward the north near 26 mph (43
km/h). A slower north-northeast or northward motion is expected
through Sunday. On the forecast track, the center of Fiona will
move across eastern Nova Scotia and into the Gulf of St. Lawrence
this morning, and then move across Labrador and over the Labrador
Sea on Sunday.
Maximum sustained winds are near 90 mph (150 km/h) with higher
gusts. Although gradual weakening is forecast during the next
couple of days, Fiona is expected to maintain hurricane-force winds
until this afternoon.
Hurricane-force winds extend outward up to 175 miles (280 km) from
the center and tropical-storm-force winds extend outward up to 405
miles (650 km). There have been many reports of hurricane-force
winds gusts in portions of eastern Nova Scotia during the past few
hours.
The estimated minimum central pressure is 931 mb (27.50 inches).
The Canadian station on Hart Island recently reported a pressure
of 931.6 mb (27.51 inches).
HAZARDS AFFECTING LAND
----------------------
Key messages for Fiona can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC
and on the web at hurricanes.gov/text/MIATCDAT2.shtml.
WIND: Hurricane conditions are occurring in portions of the
hurricane warning area in Canada. Tropical storm conditions are
occurring in portions of the tropical storm warning area in Canada.
These conditions should persist through later today. Tropical storm
conditions are possible in the watch area in Labrador on Sunday.
RAINFALL: Fiona is forecast to produce the following rainfall:
Nova Scotia, Prince Edward Island, and western Newfoundland: 3 to 6
inches (75 to 150 mm), with local maxima of up to 10 inches (250
mm). Flooding is expected, some of which could be significant.
Labrador and eastern Quebec: 2 to 5 inches (50 to 125 mm).
Eastern New Brunswick: 1 to 3 inches (25 to 75 mm).
STORM SURGE: A dangerous storm surge is expected to produce coastal
flooding within the warning areas in Atlantic Canada in areas of
onshore winds. Near the coast, the surge will be accompanied by
large and destructive waves.
SURF: Swells generated by Fiona are affecting Atlantic Canada, the
eastern United States coast, Bermuda, and the northwestern Bahamas.
The swells are likely to cause life-threatening surf and rip
current conditions. Please consult products from your local weather
office.
NEXT ADVISORY
-------------
Next intermediate advisory at 800 AM AST.
Next complete advisory at 1100 AM AST.
$$
Forecaster Beven
NNNN
posted by Advackia at 8:42 PM
0 comments
