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Post-Tropical Cyclone Ophelia Advisory Number 28
NWS National Hurricane Center Miami FL AL172017
1100 PM AST Sun Oct 15 2017
...OPHELIA NOW POST-TROPICAL BUT STILL EXPECTED TO BRING STRONG
WINDS TO IRELAND AND THE UNITED KINGDOM ON MONDAY...
...THIS IS THE LAST ADVISORY FROM NHC...
SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION
ABOUT 220 MI...355 KM SW OF MIZEN HEAD IRELAND
MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H
PRESENT MOVEMENT...N OR 10 DEGREES AT 44 MPH...70 KM/H
MINIMUM CENTRAL PRESSURE...969 MB...28.62 INCHES
WATCHES AND WARNINGS
There are no coastal tropical cyclone watches or warnings in effect.
Interests in Ireland should monitor products issued by Met Eireann,
and interests in the United Kingdom should monitor products issued
by the UK Met Office.
DISCUSSION AND 48-HOUR OUTLOOK
At 1100 PM AST (0300 UTC), the center of Post-Tropical Cyclone
Ophelia was located near latitude 49.2 North, longitude 13.3 West.
The post-tropical cyclone is moving toward the north near 44 mph
(70 km/h). A turn toward the north-northeast with a decrease in
forward speed is expected on Monday, with that heading continuing
through Tuesday. On the forecast track, the center of the
post-tropical cyclone will move near western Ireland on Monday
and then near northern Scotland Monday night.
Maximum sustained winds are near 85 mph (140 km/h) with higher
gusts. Weakening is forecast during the next couple of days, and
the post-tropical cyclone is expected to dissipate near western
Norway by Tuesday night.
Hurricane-force winds extend outward up to 70 miles (110 km) from
the center, and tropical-storm-force winds extend outward up to 275
miles (445 km).
The estimated minimum central pressure is 969 mb (28.62 inches).
HAZARDS AFFECTING LAND
WIND: Gale-force winds are expected to begin across southern
Ireland during the next few hours and gradually spread northward
across the country during the day on Monday. Hurricane-force winds
are forecast to reach the southern portions of Ireland by Monday
afternoon. Strong winds will then spread across the remainder of
Ireland and parts of the United Kingdom into Monday night.
Preparations to protect lives and property should be complete.
Wind speeds atop and on the windward sides of hills and mountains
are often up to 30 percent stronger than the near-surface winds
indicated in this advisory, and in some elevated locations could be
RAINFALL: Ophelia is expected to produce rainfall amounts of 2 to
3 inches (50 mm to 75 mm) with isolated totals near 4 inches (100
mm) through Tuesday across western Ireland and Scotland. Across
eastern Ireland, rainfall amounts will average around 1 inch (25 mm)
STORM SURGE: A dangerous storm surge is expected to produce
significant coastal flooding near and to the east of where the
center of the post-tropical cyclone makes landfall. Near the coast,
the surge will be accompanied by large and destructive waves.
This is the last public advisory issued by the National Hurricane
Center on this system. Additional information on this system can be
found in High Seas Forecasts issued by the UK Met Office under WMO
header FQNT21 EGRR and on the web at
Local forecasts and warnings for Ireland can be found on the
website of Met Eireann, the Irish Meteorological Service, at
Local forecasts and warnings for the United Kingdom can be found on
the website of the UK Met Office at http://www.metoffice.gov.uk/.