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Advisory - Tropical System Helene

POST-TROPICAL CYCLONE HELENE ADVISORY NUMBER  37
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL082018
1100 AM AST SUN SEP 16 2018

...HELENE NOW A POST-TROPICAL CYCLONE...
...THIS IS THE LAST ADVISORY...


SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...43.8N 25.7W
ABOUT 405 MI...655 KM N OF THE AZORES
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...NE OR 55 DEGREES AT 29 MPH...46 KM/H
MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES


WATCHES AND WARNINGS
--------------------
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

NONE.

INTERESTS IN IRELAND AND THE UNITED KINGDOM SHOULD CONSULT PRODUCTS
FROM THEIR LOCAL METEOROLOGICAL SERVICE FOR INFORMATION ABOUT
POTENTIAL IMPACTS FROM POST-TROPICAL HELENE IN THOSE LOCATIONS.
LOCAL FORECASTS AND WARNINGS FOR THE UK CAN BE FOUND ON THE WEBSITE
OF THE UK MET OFFICE AT HTTPS://WWW.METOFFICE.GOV.UK/.  LOCAL
FORECASTS AND WARNINGS FOR IRELAND CAN BE FOUND ON THE WEBSITE OF
MET EIREANN AT HTTPS://WWW.MET.IE/.


DISCUSSION AND OUTLOOK
----------------------
AT 1100 AM AST (1500 UTC), THE CENTER OF POST-TROPICAL CYCLONE
HELENE WAS LOCATED NEAR LATITUDE 43.8 NORTH, LONGITUDE 25.7 WEST.
THE POST-TROPICAL CYCLONE IS MOVING TOWARD THE NORTHEAST NEAR 29 MPH
(46 KM/H), AND THIS MOTION IS EXPECTED TO CONTINUE WITH AN INCREASE
IN FORWARD SPEED DURING THE NEXT 24 HOURS.  ON THE FORECAST TRACK,
THE POST-TROPICAL CYCLONE WILL APPROACH IRELAND AND THE UNITED
KINGDOM ON MONDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 50 MPH (85 KM/H) WITH HIGHER GUSTS.
SOME SLIGHT STRENGTHENING IS POSSIBLE TODAY.  SOME WEAKENING IS
EXPECTED BY MONDAY, AND THE SYSTEM IS FORECAST TO BE ABSORBED
BY ANOTHER LOW PRESSURE AREA BY EARLY TUESDAY.

TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 230 MILES (370 KM)
FROM THE CENTER.

THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 989 MB (29.21 INCHES).


HAZARDS AFFECTING LAND
----------------------
INFORMATION ON RAINFALL AND WIND FORECASTS FOR IRELAND CAN BE
FOUND IN PRODUCTS ISSUED BY MET EIREANN AT WWW.MET.IE AND FOR THE
UNITED KINGDOM IN PRODUCTS ISSUED BY THE UNITED KINGDOM MET OFFICE
AT WWW.METOFFICE.GOV/UK.

SURF:  SWELLS GENERATED BY HELENE ARE AFFECTING PORTIONS OF THE
AZORES.  THESE SWELLS ARE LIKELY TO CONTINUE FOR ANOTHER DAY OR SO
AND COULD 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 THIS SYSTEM.  ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE
FOUND IN HIGH SEAS FORECASTS ISSUED BY METEO FRANCE UNDER WMO HEADER
FQNT50 LFPW AND AVAILABLE ON THE WEB AT:
HTTP://WWW.METEOFRANCE.COM/PREVISIONS-METEO-MARINE/BULLETIN.
ADDITIONAL INFORMATION CAN ALSO BE FOUND IN HIGH SEAS FORECAST
ISSUED BY THE UK MET OFFICE UNDER WMO HEADER FQNT21 EGRR AND ON THE
WEB AT:
HTTP://WWW.METOFFICE.GOV.UK/PUBLIC/WEATHER/MARINE-HIGH-SEAS/.

$$
FORECASTER BROWN

Tropical Storm Helene
Latitude 43.8N
Longitude 25.7W
Maximum Winds 50 MPH
Pressure 989 MB
Direction/Speed NE @ 29 MPH

Last Updated: 1100 AM AST



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