High Wind Warning 2, NWS Honolulu, HI

806 
WWHW70 PHFO 140742
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
942 PM HST WED JAN 13 2010

HIZ022-140845-
/O.CAN.PHFO.HW.W.0002.000000T0000Z-100114T1600Z/
HALEAKALA SUMMIT-
942 PM HST WED JAN 13 2010

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CANCELLED THE HIGH
WIND WARNING. 

WINDS ON HALEAKALA SUMMIT HAVE DIMINISHED.

$$

HIZ028-141600-
/O.CON.PHFO.HW.W.0002.000000T0000Z-100114T1600Z/
BIG ISLAND SUMMITS-
942 PM HST WED JAN 13 2010

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM HST THURSDAY...

NORTHWEST WINDS OF 40 TO 50 MPH WITH HIGHER GUSTS WILL CONTINUE
OVER THE SUMMITS OF MAUNA KEA AND MAUNA LOA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TRAVEL TO THE SUMMIT AREAS SHOULD BE DELAYED UNTIL WINDS SUBSIDE.

&&

$$
DONALDSON

474 
WWHW70 PHFO 141330
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
330 AM HST THU JAN 14 2010


HIZ028-150230-
/O.CAN.PHFO.HW.W.0002.000000T0000Z-100114T1600Z/
/O.NEW.PHFO.WI.Y.0008.100114T1330Z-100115T0400Z/
BIG ISLAND SUMMITS-
330 AM HST THU JAN 14 2010

...WIND ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING...
...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM HST THIS EVENING. THE
HIGH WIND WARNING HAS BEEN CANCELLED. 

NORTHWEST WINDS OF 30 TO 35 MPH WILL CONTINUE OVER THE SUMMITS OF
MAUNA KEA AND MAUNA LOA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
DONALDSON

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE HONOLULU HI
1011 AM HST WED JAN 13 2010

.SYNOPSIS...
A COLD FRONT OVER KAUAI THIS MORNING WILL MOVE DOWN THE ISLAND
CHAIN TODAY AND TONIGHT WITH GUSTY NORTHWEST WINDS FILLING IN
BEHIND THE FRONT. CLOUDS AND ISOLATED SHOWERS WILL MAINLY BE
FOCUSED OVER MAUKA AREAS...NORTHERN ISLAND SLOPES AND NORTHERN
WATERS TODAY. THE WINDS WILL WEAKEN AND SHIFT TO THE NORTH AND
NORTHEAST AS A HIGH BUILDS IN BEHIND THE FRONT TOMORROW NIGHT.
MODERATE TRADE WINDS WILL RETURN BY FRIDAY...AND WILL LIKELY
CONTINUE INTO EARLY NEXT WEEK.

&&

.DISCUSSION...
A NORTHEAST TO SOUTHWEST ORIENTATED LOW CLOUD BAND WITH A FEW
EMBEDDED SHOWERS IS PRESENT OVER THE BIG ISLAND THIS MORNING. THIS
BAND IS EXPECTED TO SLIDE SOUTHEAST AND DISSIPATE LATER TODAY AS A
COLD FRONT MOVES OVER THE STATE TODAY.

THE COLD FRONT IS CURRENTLY OVER KAUAI MOVING SOUTHEAST AT 15 MPH
AND IS MARKED BY A VERY NARROW STRATUS CLOUD BAND. THIS FRONT IS
EXPECTED TO TRACK EAST-SOUTHEAST OVER THE STATE THROUGH TOMORROW
MORNING...BUT HAWAII WILL BE ON THE SOUTHERN FRINGES OF THE
MOISTURE POOL FOR THE DURATION OF THIS SYSTEM. THIS WILL RESULT IN
ISOLATED SHOWER COVERAGE CONCENTRATED OVER MAUKA AREAS...NORTHERN
ISLAND SLOPES AND WATERS NORTH OF HAWAII TODAY. THESE CLOUDS AND
SHOWERS ARE EXPECTED TO DECREASE SIGNIFICANTLY BY LATE TONIGHT OR
THURSDAY MORNING.

THE MAIN IMPACT OF THIS FRONTAL PASSAGE WILL BE THE SURGE OF
MODERATE TO FRESH SURFACE WINDS...INITIALLY FROM THE NORTHWEST
TODAY AND EVENTUALLY VEERING NORTHWARD TOMORROW. ASIDE FROM THE
MOUNTAIN PEAKS ON MAUI AND THE BIG ISLAND...THE WINDS WILL LIKELY
BE THE STRONGEST OVER KAUAI AND OAHU TODAY...INCREASING ACROSS THE
REST
OF THE ISLANDS TONIGHT AND TOMORROW. THE KONA COAST COULD GET
SIGNIFICANT WINDS OVERNIGHT INTO THURSDAY MORNING DUE TO
ACCELERATION THROUGH THE ALENUIHAHA CHANNEL.

WATER VAPOR IMAGERY INDICATES A LARGE UPPER TROPOSPHERIC TROUGH
CONTINUING TO DIG DOWN TOWARD THE ISLANDS THIS MORNING. THE AXIS OF
THIS TROUGH WILL PASS ACROSS THE STATE LATER TODAY AND TONIGHT.
THE INCREASED GRADIENT ALOFT OVER THE STATE HAS ALREADY RESULTED
IN NEAR GALE FORCE WINDS AT THE PEAKS OF HALEAKALA...MAUNA KEA AND
MAUNA LOA. THESE WINDS ARE EXPECTED TO CONTINUE THROUGH TOMORROW
MORNING AND A WIND ADVISORY REMAINS IN EFFECT.

THE SURFACE WINDS WILL WEAKEN AND VEER TO THE EAST NORTHEAST...OR
THE TYPICAL TRADE WIND DIRECTION BY FRIDAY AS THE SUBTROPICAL HIGH
MOVES BY NORTH OF THE STATE. MODERATE TRADE WINDS...ALONG WITH
WINDWARD AND MAUKA SHOWERS...WILL OCCUR DURING THE REMAINDER OF
THE WEEKEND AND INTO EARLY NEXT WEEK.

&&

.MARINE...A NORTHWEST SWELL IS EXPECTED TO INCREASE ACROSS THE
ISLAND CHAIN LATER TODAY AND TONIGHT. THE STRONG NORTHWEST WINDS
THAT WILL BE FILLING IN LATER TODAY WILL ALSO PRODUCE LOCALLY
GENERATED WIND WAVES...RESULTING IN ROUGH AND CHOPPY SURF. RECENT
OBSERVATIONS FROM BUOY 51101 INDICATE THE SIGNIFICANT WAVE HEIGHT
HAS INCREASED TO 15 FEET WITH A PERIOD OF 15 SECONDS FROM 310
DEGREES. THEREFORE...A HIGH SURF WARNING HAS BEEN ISSUED THROUGH
TOMORROW FOR MOST NORTH AND WEST FACING SHORES OF THE SMALLER
ISLANDS. THE HIGH SURF ADVISORY HAS ALSO BEEN EXTENDED FOR WEST
FACING SHORES OF THE BIG ISLAND.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF WARNING UNTIL 6 PM HST THURSDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-WAIANAE COAST-OAHU NORTH SHORE-OAHU
KOOLAU-MOLOKAI-MAUI WINDWARD WEST-MAUI LEEWARD WEST-MAUI CENTRAL
VALLEY-WINDWARD HALEAKALA.

HIGH SURF ADVISORY UNTIL 6 PM HST THURSDAY FOR KONA-KOHALA.

WIND ADVISORY UNTIL 6 AM HST THURSDAY FOR HALEAKALA SUMMIT-BIG
ISLAND SUMMITS.

SMALL CRAFT ADVISORY UNTIL 6 AM HST THURSDAY FOR KAUAI NORTHWEST
WATERS-KAUAI WINDWARD WATERS-KAUAI LEEWARD WATERS-KAUAI CHANNEL-
OAHU WINDWARD WATERS-KAIWI CHANNEL-MAUI COUNTY WINDWARD WATERS-
BIG ISLAND WINDWARD WATERS-BIG ISLAND LEEWARD WATERS-BIG ISLAND
SOUTHEAST WATERS.

SMALL CRAFT ADVISORY FROM 6 PM THIS EVENING TO 6 AM HST THURSDAY
FOR OAHU LEEWARD WATERS-MAUI COUNTY LEEWARD WATERS.

&&

FOSTER