568  
WTNT32 KNHC 160251  
TCPAT2  
 
BULLETIN  
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  
-----------------------------------------------  
LOCATION...49.2N 13.3W  
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  
EVEN GREATER.  
 
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)  
OR LESS.  
 
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.  
 
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 THE UK MET OFFICE UNDER WMO  
HEADER FQNT21 EGRR AND ON THE WEB AT  
HTTP://WWW.METOFFICE.GOV.UK/PUBLIC/WEATHER/MARINE-HIGH-SEAS/.  
 
LOCAL FORECASTS AND WARNINGS FOR IRELAND CAN BE FOUND ON THE  
WEBSITE OF MET EIREANN, THE IRISH METEOROLOGICAL SERVICE, AT  
HTTP://WWW.MET.IE/.  
 
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/.  
 

 
FORECASTER BERG  
 
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