Area Forecast Discussion
Issued by NWS Honolulu, HI

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXHW60 PHFO 300702
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
830 PM HST WED JUL 29 2015

.SYNOPSIS...
A HIGH TO THE NORTHEAST AND A SERIES OF WEAK TROPICAL DISTURBANCES
TO THE SOUTH WILL MAINTAIN LOCALLY BREEZY TRADE WINDS THROUGH EARLY
NEXT WEEK. THE TRADES WILL BRING SOME SHOWERS TO WINDWARD AREAS...
MOSTLY DURING NIGHTS AND MORNINGS. LEEWARD AREAS WILL REMAIN MOSTLY
DRY EXCEPT FOR AFTERNOON SHOWERS OVER THE KONA SLOPES.

&&

.DISCUSSION...
MAINLY FAIR WEATHER CONTINUES OVER THE ISLANDS THIS EVENING...WITH
MINIMAL SHOWERS ACROSS THE AREA. THERE IS A LINE OF LOW CLOUDS
REACHING WINDWARD BIG ISLAND AT THIS TIME...BRINGING SOME SHOWERS TO
THAT AREA. THIS BAND WILL CONTINUE WEST THROUGH REST OF THE EVENING
INTO EARLY THURSDAY MORNING UNDER THE TRADE WINDS...REACHING REST OF
THE ISLANDS AND BRINGING SOME SHOWERS TO MAINLY WINDWARD AREAS
OVERNIGHT.

A SURFACE HIGH PRESSURE WILL REMAIN FAR NORTH OF THE STATE...WHILE
TROPICAL DISTURBANCES EXPECTED TO PASS SOUTH OF THE ISLANDS WILL
KEEP PRESSURE GRADIENT TIGHTS ACROSS THE REGION THROUGH THE REST OF
THE WEEK. THE RESULT IS THE CONTINUATION OF THE LOCALLY BREEZY TRADE
WINDS OVER THE ISLANDS IN THE MEAN TIME. LOW CLOUDS WITH EMBEDDED
SHOWERS CARRIED BY THE WINDS WILL REACH THE STATE AT
TIMES...AFFECTING MAINLY WINDWARD AREAS.

LATEST BULLETIN ON TROPICAL DEPRESSION EIGHT-E FROM NATIONAL
HURRICANE CENTER STILL HAS THE SYSTEM DISSIPATED BY EARLY FRIDAY
MORNING AFTER CROSSING INTO CENTRAL PACIFIC AREA SOME TIME THURSDAY.
LATEST FORECAST SOLUTIONS STILL HAVE REMNANT MOISTURE FROM THIS
SYSTEM REACHING THE EASTERN END OF THE ISLANDS OVER THE
WEEKEND...THOUGH LOOKS LIKE ITS ARRIVAL MAY BE EARLIER.
REGARDLESS...STILL EXPECT HUMID WEATHER TO SPREAD ACROSS THE ISLANDS
AS WELL AS POSSIBLE INCREASED SHOWERS FOR WINDWARD
AREAS...ESPECIALLY THE BIG ISLAND OVER THE WEEKEND.

THE FORECAST REMAINS RATHER UNCERTAIN AFTER THE WEEKEND...AS
TROPICAL DEPRESSION NINE-E FAR EAST SOUTHEAST OF THE ISLANDS IS
EXPECTED TO DEVELOP INTO A TROPICAL CYCLONE AND MOVE WEST OF 140W
INTO THE CENTRAL PACIFIC OVER THE WEEKEND. THE WEATHER OVER THE MAIN
HAWAIIAN ISLANDS NEXT WEEK WILL DEPEND ON THE PROGRESS OF THIS
TROPICAL SYSTEM.

&&

.AVIATION...
NO AIRMETS ARE CURRENTLY IN EFFECT AND MOSTLY VFR COND WILL PREVAIL
THROUGH EARLY THURSDAY MORNING FOR ALL SITES. INCREASING CLOUDS AND
SHOWERS COULD BRING BRIEF MVFR COND TO SOME WINDWARD AREAS
OVERNIGHT AND REQUIRE AIRMET SIERRA FOR MTN OBSC. ALSO...TRADE WINDS
MAY STRENGTHEN ENOUGH TO REQUIRE AIRMET TANGO FOR LOW LEVEL TURB.

&&

.FIRE WEATHER...
WITH STRENGTHENING TRADE WINDS AND RELATIVELY DRY WEATHER...THE
FIRE DANGER HAS INCREASED...MAINLY DURING THE DAY. BELIEVE THE
CRITERIA WILL NOT BE MET ON THURSDAY...THOUGH IT WILL BE CLOSE.

&&

.MARINE...
A SMALL CRAFT ADVISORY WILL CONTINUE FOR THE WINDY WATERS AROUND THE
BIG ISLAND AND MAUI THROUGH SATURDAY EVENING. THE ADVISORY MAY NEED
TO BE EXPANDED TO INCLUDE SOME AREAS AROUND OAHU AND KAUAI IN THE
NEXT COUPLE OF DAYS...AS THE TRADE WINDS

NO MAJOR SWELLS ARE EXPECTED FOR THE NEXT SEVERAL DAYS. SURF IS
EXPECTED TO REMAIN BELOW THE ADVISORY THRESHOLD ALONG ALL SHORES.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
SMALL CRAFT ADVISORY UNTIL 6 PM HST SATURDAY FOR THE PAILOLO AND
ALENUIHAHA CHANNELS...MAALAEA BAY...AND WATERS SOUTH OF THE BIG
ISLAND.

&&

$$

HUI




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.