Flash Flood Warning 51, NWS Honolulu, HI

471 
WGHW70 PHFO 170915
FFSHFO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
1115 PM HST WED SEP 16 2015

HIC001-170923-
/O.CAN.PHFO.FF.W.0051.000000T0000Z-150917T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HAWAII HI-
1115 PM HST WED SEP 16 2015

...THE FLASH FLOOD WARNING FOR THE ISLAND OF HAWAII IN HAWAII COUNTY
IS CANCELLED...

HAWAII COUNTY CIVIL DEFENSE REPORTS THAT MAMALAHOA HIGHWAY AT KAWA 
FLATS HAS REOPENED...AS FLOOD WATERS AT THAT LOCATION HAVE RECEDED. 
NO ADDITIONAL HEAVY RAINS ARE OCCURRING IN THE KAWA FLATS AREA AT
THIS TIME...AND THE FLASH FLOOD WARNING IS CANCELLED.

LAT...LON 1910 15561 1920 15553 1916 15544 1915 15546
      1908 15556

$$

JACOBSON

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
340 PM HST WED SEP 16 2015

.SYNOPSIS...
MODERATE TO FRESH TRADE WINDS WILL BRING PASSING SHOWERS ACROSS
THE ISLANDS DURING THE NEXT SEVERAL DAYS...WITH RAINFALL FOCUSING
OVER WINDWARD AND MOUNTAIN AREAS. SOME OF THE LARGER SHOWERS WILL
REACH LEEWARD LOCATIONS AT TIMES. DAYTIME HEATING WILL ALSO CONTINUE
TO TRIGGER AFTERNOON SHOWERS OVER THE LEEWARD BIG ISLAND SLOPES AND
COAST. ANOTHER ROUND OF UNSETTLED WEATHER IS POSSIBLE AGAIN THIS
WEEKEND AS AN UPPER LEVEL DISTURBANCE APPROACHES THE ISLANDS FROM THE
NORTHEAST.

&&

.DISCUSSION...A BROAD SFC HIGH PRESSURE SYSTEM CENTERED FAR N OF THE
MAIN HAWAIIAN ISLANDS WILL KEEP A MODERATE TO FRESH TRADE WIND
WEATHER REGIME ACROSS THE AREA THROUGH THE END OF THE WORK WEEK.

DURING THE EARLY AFTERNOON HOURS...INTENSE DAYTIME HEATING COMBINED
WITH THE LINGERING MOISTURE AROUND THE BIG ISLAND TO GENERATE INTENSE
AND WIDE-SPREAD SHOWERS OVER LEEWARD AREAS AROUND KAILUA-KONA...
HOLUALOA AND EXTENDING S THROUGH CAPTAIN COOK. OTHER AREAS OF HEAVY
RAIN WERE AFFECTING THE SE SLOPES OF MAUNA LOA FROM S POINT THROUGH
WOOD VALLEY. CONVECTION SHOULD CONTINUE OVER LEEWARD AREAS OF THE BIG
ISLAND THROUGH THE REST OF THE AFTERNOON HOURS...THEN TAPPER OFF LATER
THIS EVENING.

SHOWERS WILL CONTINUE TO STREAM FROM THE NE...MAINLY OVER WINDWARD
AREAS TONIGHT AND THROUGH FRI...AS MOISTURE UPSTREAM OF THE ISLANDS
GETS CAUGHT IN THE TRADES. SOME OF THE LARGER SHOWERS WILL REACH
LEEWARD LOCATIONS AT TIMES. SATELLITE IMAGERY STILL DEPICT AN AREA OF
LOW CLOUDS AND SHOWERS LOCATED E OF THE BIG ISLAND...WHICH WILL
CONTINUE TO FURTHER ENHANCE RAINFALL OVER THE WINDWARD BIG ISLAND AND
MAUI AT TIMES. THE LEEWARD BIG ISLAND SHOULD AGAIN EXPERIENCE CLOUD
BUILDUPS AND SHOWERS THU AND FRI AFTERNOON.

MODELS SHOW THE SFC HIGH SLOWLY MIGRATING SE THROUGH THE WEEKEND. THIS
WILL BRING VEERING WINDS TO A MORE E/SE FLOW SAT AND SUN. MODELS ALSO
DEVELOP A SFC LOW FAR WSW OF THE ISLANDS...ALONG WITH A CLOSED LOW ALOFT
APPROACHING THE ALOHA STATE FROM THE NE. THIS OVERALL SYNOPTIC SCENARIO
MAY DESTABILIZE THE AIRMASS ACROSS THE AREA AND BRING ANOTHER ROUND OF
UNSETTLED WEATHER DURING THE WEEKEND AND INTO EARLY NEXT WEEK.

&&

.AVIATION...
MODERATE TO BREEZY TRADE WINDS WILL CONTINUE THROUGH THE NEXT FEW
PERIODS. OVER THE SMALLER ISLANDS SHOWERS EMBEDDED IN THE TRADES
WILL FAVOR WINDWARD AND MAUKA AREAS...WITH ONLY POSSIBLE ISOL MVFR
IN PASSING SHOWERS.

ON THE BIG ISLAND...TRADE SHOWERS WILL ALSO FAVOR WINDWARD
AREAS...HOWEVER ARE LIKELY TO BE MORE WIDESPREAD LATER TONIGHT AS
ENHANCE MOISTURE MOVES THROUGH THE ISLANDS. TEMPO MVFR IS IS LIKELY.
ELSEWHERE ON THE BIG ISLAND AFTERNOON CONVECTION FLARED UP OVER KONA
AND KAU DISTRICTS WITH TEMPO MVFR TO ISOL IFR CONDITIONS. THIS
ACTIVITY WILL BEGIN TO DECREASE THIS EVENING AND CLEAR OUT LATER
TONIGHT.

&&

.MARINE...
SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED TO CONTINUE OVER THE
TYPICALLY WINDIER WATERS AROUND THE BIG ISLAND AND MAUI COUNTY
BEYOND THIS EVENING...THEREFORE...THE ADVISORY HAS BEEN EXTENDED
UNTIL 6 AM HST THURSDAY. WIND SPEEDS WILL LIKELY REMAIN ELEVATED
THROUGH LATER THURSDAY

A MODERATE SOUTH-SOUTHWEST SWELL IS EXPECTED TO CONTINUE THROUGH
THURSDAY...MAINTAINING MODERATE SURF ALONG SOUTH FACING SHORES OF
THE STATE. A SLIGHTLY LARGER SOUTH-SOUTHWEST SWELL ON FRIDAY IS
EXPECTED TO CAUSE SURF TO APPROACH THE HIGH SURF ADVISORY CRITERIA
ALONG SOUTH FACING SHORES BEFORE DIMINISHING THIS WEEKEND. TRADE
WINDS WILL CONTINUE TO GENERATE MODERATE...BUT CHOPPY SURF ALONG
EAST FACING SHORES THIS WEEK.

&&

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

&&

DISCUSSION/MARINE...REYNES
AVIATION...EATON

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
320 PM HST WED SEP 16 2015

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

0252 PM     FLASH FLOOD      1 SE KAILUA-KONA        19.63N 155.98W
09/16/2015                   HAWAII             HI   BROADCAST MEDIA

            HUALALAI ROAD FROM QUEEN KAAHUMANU HWY TO HIENALOLI RD
            AND KUAKINI HWY AT ONIONI ST HAVE BEEN CLOSED.

&&

KODAMA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
732 PM HST WED SEP 16 2015

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

0650 PM     FLASH FLOOD      5 S PAHALA              19.13N 155.48W
09/16/2015                   PHZ122             HI   COUNTY OFFICIAL

            HIGHWAY 11 BETWEEN MILE MARKERS 58 AND 59 HAS BEEN CLOSED
            DUE TO WATER SPILLING ACROSS ROAD.

&&

JCHEVALI