Wind Advisory 3, NWS Honolulu, HI

000 
WWHW70 PHFO 191335
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
335 AM HST SAT JAN 19 2008

...STRENGTHENING HIGH PRESSURE WILL BRING STRONG WINDS TO
HALEAKALA SUMMIT LATER TODAY AND TONIGHT...

.STRENGTHENING HIGH PRESSURE OVER AND TO THE NORTH OF THE HAWAIIAN
ISLANDS BRING STRONG EAST WINDS TO THE HALEAKALA SUMMIT LATER
TODAY AND TONIGHT.

HIZ022-200245-
/O.EXT.PHFO.WI.Y.0003.080119T1600Z-080120T1600Z/
HALEAKALA SUMMIT-
335 AM HST SAT JAN 19 2008

...WIND ADVISORY NOW IN EFFECT FROM 6 AM THIS MORNING TO 6 AM HST
SUNDAY...

THE WIND ADVISORY IS NOW IN EFFECT FROM 6 AM THIS MORNING TO 6 AM
HST SUNDAY. 

EAST WINDS WILL STRENGTHEN TO 30 MPH OR MORE OVER HALEAKALA
SUMMIT LATER TODAY AND TONIGHT.

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

$$
H LAU

000 
WWHW70 PHFO 191921
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
921 AM HST SAT JAN 19 2008

...WIND ADVISORY FOR HALEAKALA SUMMIT CANCELLED...

.WINDS REMAIN LIGHT OVER HALEAKALA SUMMIT.

HIZ022-192030-
/O.CAN.PHFO.WI.Y.0003.000000T0000Z-080120T1600Z/
HALEAKALA SUMMIT-
921 AM HST SAT JAN 19 2008

...WIND ADVISORY IS CANCELLED...

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

WINDS OVER HALEAKALA SUMMIT REMAIN LIGHTER THAN EXPECTED...AND THE
COMPUTER MODELS HAVE BACKED OFF ON STRENGTHENING THEM. A WIND
ADVISORY MAY BE NEEDED EVENTUALLY...BUT PROBABLY NOT BEFORE
SUNDAY.

$$
DONALDSON

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
1000 AM HST FRI JAN 18 2008

.SYNOPSIS...
A TROUGH ALOFT WILL MAKE THE ATMOSPHERE UNSTABLE AND BRING THE
POSSIBILITY OF THUNDERSTORMS THROUGH THIS EVENING. THE ATMOSPHERE
WILL BECOME MORE STABLE LATER TONIGHT AND TRADE WINDS WILL BUILD
BACK OVER THE ISLANDS. TRADE-WIND WEATHER...WITH SHOWERS
CONCENTRATED OVER WINDWARD AREAS...WILL PERSIST THROUGH MOST OF NEXT
WEEK.

&&

.DISCUSSION...WATER VAPOR IMAGERY SHOWS A NORTH-SOUTH TROUGH ALOFT
OVER THE ISLANDS. THIS FEATURE IS MAKING THE ATMOSPHERE AROUND THE
ISLANDS RATHER UNSTABLE. SATELLITE AND RADAR IMAGERY HAVE BEEN
SHOWING LAYERED CLOUDS AND SCATTERED THUNDERSTORMS OVER WATER
NORTHEAST THROUGH EAST THROUGH SOUTHEAST OF MAUI COUNTY AND THE BIG
ISLAND. AS THE ISLANDS HEAT UP TODAY THERE WILL BE A SLIGHT CHANCE
OF THUNDERSTORMS FORMING OVER THE BIG ISLAND AND MAUI. THESE STORMS
ARE LIKELY TO DISSIPATE THIS EVENING BUT THUNDERSTORMS MAY PERSIST
OVER WATER AROUND THE ISLANDS OVERNIGHT.

THE COMPUTER MODELS ARE IN GOOD AGREEMENT SHOWING THE TROUGH ALOFT
SHIFTING EAST OF THE ISLANDS TONIGHT. AS THE TROUGH MOVES EAST THE
ATMOSPHERE WILL BECOME MORE STABLE AND THE THREAT OF THUNDER WILL
END.

WIND AROUND THE MAIN HAWAIIAN ISLANDS HAVE WEAKENED DUE TO THE
INFLUENCE OF TWO WEATHER SYSTEMS. A FRONT FAR NORTHWEST OF THE
ISLANDS HAS HELPED ERODE THE SUBTROPICAL RIDGE NORTH OF THE ISLANDS.
ALSO...THE TROUGH ALOFT OVER THE ISLANDS HAS INDUCED A SURFACE
TROUGH OVER THE ISLANDS. OVER THE NEXT FEW DAYS HIGH PRESSURE WILL
RE-BUILD NORTH OF THE ISLANDS AND THE TRADE WINDS WILL STRENGTHEN.
TRADE-WIND WEATHER WILL CONTINUE THROUGH MOST OF NEXT WEEK AND THE
TRADES WILL BE LOCALLY BREEZY AT TIMES.

&&

.MARINE...THE CURRENT NORTHWEST SWELL REQUIRES A HIGH SURF ADVISORY
AND SMALL CRAFT ADVISORY. THE SWELL WILL GRADUALLY DECREASE
OVERNIGHT. SURF WILL LIKELY DROP BELOW THE ADVISORY THRESHOLD
SATURDAY MORNING AND WAVE HEIGHTS MAY ALSO DIMINISH ENOUGH TO DROP
THE SMALL CRAFT ADVISORY. A SMALL CRAFT ADVISORY IS LIKELY AGAIN
SATURDAY NIGHT AS WINDS STRENGTHEN OVER THE COASTAL WATERS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY FOR NORTH-FACING SHORES OF ALL ISLANDS AND
WEST-FACING SHORES OF KAUAI AND OAHU AT LEAST INTO SATURDAY.

SMALL CRAFT ADVISORY THROUGH EARLY SATURDAY MORNING FOR WATERS
AROUND KAUAI...OAHU WINDWARD WATERS...AND KAIWI CHANNEL

&&

DONALDSON