Flash Flood Warning 17, NWS Honolulu, HI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
420 PM HST THU FEB 7 2008

.SYNOPSIS...AN UPPER LEVEL TROUGH WILL REMAIN ACROSS THE STATE
THROUGH SATURDAY. THE THREAT OF HEAVY SHOWERS AND ISOLATED
THUNDERSTORMS WILL PERSIST UNTIL SATURDAY. A MORE TYPICAL TRADE WIND
REGIME WILL BE IN PLACE FOR THE FIRST FEW DAYS OF NEXT WEEK.

&&

.DISCUSSION...SCATTERED SHOWERS HAVE DEVELOPED IN THE MOIST AND
UNSTABLE AIRMASS DRAPED ACROSS THE STATE. THE UPPER LEVEL TROUGH
REMAINS POSITIONED IN THE AREA. MORNING SUNSHINE PROVIDED FUEL TO
THE CONVECTION AND HEAVY RAIN HAS RESULTED. RADAR INDICATES OAHU IS
THE MOST ACTIVE OF THE ISLANDS WITH HIGH REFLECTIVITY COVERING MUCH
OF THE WESTERN HALF OF THE ISLAND. OTHER MORE ISOLATED HEAVY SHOWERS
CONTINUE OVER MAUI AND THE BIG ISLAND AND APPEARS THAT THE THREAT
OF FLASH FLOODING REMAINS THROUGH THE DAYLIGHT HOURS FOR THAT AREA
SO HAVE EXTENDED THE WATCH UNTIL 8 PM.

THE SHOWER ACTIVITY WILL GENERALLY DECREASE AS THE SUN SETS WITH
MORE SHOWER COVERAGE OVER THE WATER THAN THE LAND AS THE LAND COOLS
TONIGHT.

HAVE KEPT THE WINTER WEATHER ADVISORY GOING FOR THE BIG ISLAND
SUMMITS TONIGHT WITH SUB FREEZING TEMPERATURES AND CONVECTION
CREEPING AROUND THE NEARBY SLOPES FOR ADDITIONAL SNOWFALL AND ICE
ACCUMULATION POSSIBILITIES.

FOR THE WEEKEND FORECAST...THE ABNORMALLY WET PATTERN WILL CONTINUE
FRIDAY AND EARLY SATURDAY...ESPECIALLY WINDWARD LOCATIONS AS LIGHT
TO MODERATE TRADES AND A WEAK UPPER TROUGH PERSISTS ACROSS THE
STATE. A WEAK UPPER RIDGE AXIS BUILDS ALONG 23N-25N SUNDAY AND
MONDAY WHICH WILL PUT A DAMPER ON THE HEAVIER SHOWER ACTIVITY AND
BRING MORE TYPICAL TRADE WEATHER.

HAVE BUMPED UP POPS ABOVE CLIMO FOR TUESDAY AND BEYOND NEXT WEEK AS
MODELS MOVE THE HIGH EAST OF THE AREA AND TURN THE TRADES MORE
EAST-SOUTHEAST. THIS BRINGS DEEPER MOISTURE AND INSTABILITY BACK
INTO THE STATE.

&&

.MARINE...ADVISORY LEVEL SURF WILL MAINTAIN ACROSS NORTH FACING
SHORES OF THE SMALLER ISLANDS TONIGHT THROUGH FRIDAY NIGHT. THE
DIRECTION OF THE SWELL IS ALSO BRING ADVISORY LEVEL SURF TO WEST
FACING SHORES OF OAHU KAUAI AND NIIHAU.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH UNTIL 8 PM HST TODAY FOR MAUI AND THE BIG ISLAND.

WINTER WEATHER ADVISORY UNTIL 4 AM HST FRIDAY MORNING FOR BIG ISLAND
SUMMITS.

HIGH SURF ADVISORY UNTIL 6AM SATURDAY FOR NORTH AND WEST SHORES OF
NIIHAU KAUAI AND OAHU...AND NORTH FACING SHORES OF MOLOKAI AND
MAUI.

&&

BRENCHLEY

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
307 PM HST THU FEB 7 2008

HIZ005>007-010-011-080200-
CENTRAL OAHU-OAHU NORTH SHORE-OAHU SOUTH SHORE-WAIANAE COAST-
WAIANAE MOUNTAINS-
307 PM HST THU FEB 7 2008

...FUNNEL CLOUDS REPORTED OVER KAPOLEI...

AT 300 PM HST...THE PUBLIC REPORTED A FUNNEL CLOUD NEAR KAPOLEI
ASSOCIATED WITH A NEARLY STATIONARY THUNDERSTORM IN THAT AREA.
WEATHER RADAR SHOWED ONLY WEAK ROTATION IN THIS STORM.

HOWEVER...IF FUNNEL CLOUDS EXTEND TO THE GROUND...THEY CAN PRODUCE
DANGEROUS WINDS. REMAIN ALERT FOR CHANGING WEATHER CONDITIONS AND
STAY TUNED TO NOAA WEATHER RADIO...OR LOCAL MEDIA SOURCES FOR
FURTHER INFORMATION.

R BALLARD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
449 PM HST THU FEB 07 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0402 PM     FLASH FLOOD      MAKAKILO CITY           21.36N 158.09W
02/07/2008                   HONOLULU           HI   NEWSPAPER

            3 TO 4 FT DEEP WATER ON H-1 WESTBOUND LANES NEAR
            MAKAKILO.

&&

KODAMA