WTPA42 PHFO 242351 RRA

TCDCP2



HURRICANE LANE SPECIAL DISCUSSION NUMBER  42

NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   EP142018

200 PM HST FRI AUG 24 2018



THIS SPECIAL ADVISORY REDUCES THE CURRENT INTENSITY OF LANE TO 75

KT BASED ON RAPID WEAKENING OF THE ASSOCIATED CLOUD AND RADAR

PATTERNS OBSERVED OVER THE PAST FEW HOURS, AND ADJUSTS THE INTENSITY

AND WIND RADII FORECAST TO BETTER AGREE WITH CURRENT TRENDS. THERE

ARE NO OTHER CHANGES AT THIS TIME. THIS SPECIAL ADVISORY TAKES THE

PLACE OF THE 2 PM INTERMEDIATE ADVISORY.





KEY MESSAGES:



1. ONE SHOULD NOT INTERPRET THE FORECAST WESTWARD TURN SOUTH OF THE

ISLANDS AS A LOWER THREAT TO THE ISLANDS. IF LANE RETAINS CENTRAL

CORE CONVECTION LONGER THAN ANTICIPATED, THE WESTWARD TURN WOULD

HAPPEN LATER, WHICH COULD BRING HURRICANE CONDITIONS TO MAUI COUNTY

OR OAHU. THIS SOLUTION IS STILL PLAUSIBLE AT THIS TIME. REGARDLESS

OF WHETHER LANE MAKES LANDFALL, SEVERE IMPACTS ARE STILL POSSIBLE

AND THE EFFECTS CAN EXTEND FAR TO THE NORTH AND EAST OF THE CENTER

OF LANE.



2. LANE WILL REMAIN DANGEROUSLY CLOSE TO THE CENTRAL HAWAIIAN

ISLANDS AS A HURRICANE TODAY INTO TONIGHT BRINGING DAMAGING WINDS

TO SOME AREAS. TERRAIN EFFECTS CAN CAUSE STRONG LOCALIZED

ACCELERATION OF THE WIND THROUGH GAPS AND WHERE WINDS BLOW

DOWNSLOPE. THESE ACCELERATION AREAS WILL SHIFT WITH TIME AS LANE

PASSES NEAR OR OVER THE ISLANDS. WINDS WILL ALSO BE STRONGER AT THE

UPPER FLOORS OF HIGH RISE BUILDINGS.



3. THE SLOW MOVEMENT OF LANE GREATLY INCREASES THE THREAT FOR

PROLONGED HEAVY RAINFALL. THIS IS EXPECTED TO LEAD TO MAJOR FLASH

FLOODING AND LANDSLIDES IN SOME AREAS.



4. HIGH AND POTENTIALLY DAMAGING SURF CAN BE EXPECTED ALONG EXPOSED