Wind Advisory 37, NWS Honolulu, HI

330 
WWHW70 PHFO 290126
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
326 PM HST SUN DEC 28 2014


HIZ022-028-290230-
/O.CAN.PHFO.WI.Y.0037.000000T0000Z-141229T0400Z/
HALEAKALA SUMMIT-BIG ISLAND SUMMITS-
326 PM HST SUN DEC 28 2014

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CANCELLED THE WIND
ADVISORY. 

WINDS ACROSS THE HIGHEST SUMMITS OF MAUI AND THE BIG ISLAND HAVE
DECREASED BELOW ADVISORY THRESHOLD. THE WIND ADVISORY FOR THESE
AREAS IS THEREFORE CANCELLED.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
800 PM HST SAT DEC 27 2014

.SYNOPSIS...
A COOL...DRY...AND STABLE AIR MASS WILL PREVAIL OVER TH ISLANDS
FOR THE NEXT COUPLE OF DAYS. AN APPROACHING FRONT WILL ALTER THE
WEATHER SCENE AS IT IS FORECAST TO MOVE DOWN THE ISLAND CHAIN
BETWEEN TUESDAY AFTERNOON AND WEDNESDAY WITH LIMITED RAINFALL.
A STRONGER FRONT MAY BRING HEAVIER RAINFALL AND GUSTY WINDS TOWARDS
THE UPCOMING WEEKEND.

&&

.DISCUSSION...

A COOL...DRY...AND STABLE AIR MASS HAS SETTLED OVER THE ISLANDS AND
WILL LINGER AROUND TO ABOUT MONDAY NIGHT. KEY ITEM WITH THIS AIR
MASS IS OVERNIGHT LOWS WHERE IT WILL BE CHILLY WITH NEAR RECORD
LOWS ON SUNDAY NIGHT AND MONDAY MORNING WHEN THE WIND WILL BE THE
LIGHTEST. WE ARE EXPECTING LOWS TONIGHT IN THE UPPER 50S TO UPPER 60S
AND FROM THE LOW 50S TO MID 60S. THIS DRY AND STABLE AIR MASS WILL
RESULT IN A PLEASANT...COOL DAYS AS WELL WITH HIGHS MOSTLY 75 TO 80
DEGREES.

THIS WILL ALL CHANGE WITH SOUTHERLY WINDS COMING INTO THE PICTURE
MONDAY NIGHT...AHEAD OF A FRONT FORECAST TO REACH KAUAI TUESDAY
AFTERNOON...OAHU TUESDAY EVENING...MAUI COUNTY VERY EARLY WEDNESDAY
MORNING AND THE BIG ISLAND AROUND DAYBREAK WEDNESDAY. THE FRONT IS
FORECAST TO DISSIPATE WHILE CROSSING THE BIG ISLAND. REMNANT
MOISTURE SHOULD EXIT EAST BIG ISLAND WEDNESDAY EVENING.

A WEAK HIGH FOLLOWS IN BEHIND THE FRONT. THUS WE ARE LOOKING AT
LIGHT NORTHERLY WINDS FOR NEW YEARS EVE...LIGHT ENOUGH WHERE SMOKE
DISPERSION WILL BE POOR FOR AREAS OF HEAVY FIREWORK ACTIVITY.

THE LIGHT NORTHERLY WINDS BECOMES LIGHT WESTERLY WINDS THURSDAY
NIGHT AND PERSIST THROUGH FRIDAY. A PASSING SURFACE TROUGH NORTH OF
THE ISLANDS MAY USHER IN A FEW SHOWERS AT THIS TIME.

THEN A STRONGER FRONT MAY MOVE OVER THE ISLANDS STARTING WITH KAUAI
AS EARLY AS FRIDAY AFTERNOON. BOTH THE ECMWF AND GFS ARE SHOWING
THIS TREND. AND THERE WILL BE SUFFICIENT UPPER LEVEL SUPPORT WITH
A VIGOROUS SHORTWAVE TROUGH MOVING ACROSS THE ISLAND CHAIN FROM WEST
TO EAST.

THE WINDS OVER THE SUMMITS REMAINS STRONG THIS HOUR HOVERING AT OR
JUST ABOVE 55 MPH AS SEVERAL SITES. THIS HIGH WIND WARNING IS GOOD
TO 6 AM HST SUNDAY.

&&

.AVIATION...
A MORE TYPICAL TRADE WIND PATTERN WILL BEGIN TO AFFECT THE ISLANDS
ON SUNDAY. VFR CONDITIONS ARE EXPECTED AT ALL TERMINALS THROUGH THE
TAF FORECAST PERIOD.

STRONG MID LEVEL WINDS CONTINUE TO AFFECT THE SUMMITS OF THE BIG
ISLAND AND MAUI. AS A RESULT...AIRMET TANGO REMAINS IN EFFECT FOR
TEMPO MOD TURB OVER AND TO THE S AND SE OF THE SUMMITS.

&&

.MARINE...
SURF HEIGHTS ALONG NORTH-FACING SHORES ARE EXPECTED TO REMAIN BELOW
ADVISORY LEVELS THROUGH TUESDAY. CURRENTLY...A MODERATE NORTHWEST
SWELL WILL DIMINISH THROUGH SUNDAY...WHILE A SHORT-PERIOD NORTH
SWELL ARRIVES. THIS SWELL WILL SUBSIDE MONDAY THROUGH TUESDAY. A
NEW AND LARGER NORTHWEST SWELL IS EXPECTED TO BOOST THE SURF UP TO
NEAR ADVISORY LEVELS FROM TUESDAY THROUGH THURSDAY.

OVER THE COASTAL WATERS...WIND SPEEDS AND COMBINED SEAS ARE EXPECTED
TO REMAIN BELOW THE THRESHOLD FOR A SMALL CRAFT ADVISORY.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH WIND WARNING UNTIL 6 AM HST SUNDAY FOR BIG ISLAND SUMMITS.

&&

DISCUSSION AND MARINE...LAU
AVIATION...JELSEMA