Flash Flood Warning 55, NWS Honolulu, HI

240 
WGHW70 PHFO 170718
FFSHFO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
918 PM HST FRI OCT 16 2015

HIC001-170845-
/O.CON.PHFO.FF.W.0055.000000T0000Z-151017T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HAWAII HI-
918 PM HST FRI OCT 16 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 PM HST FOR
THE ISLAND OF HAWAII IN HAWAII COUNTY...

AT 908 PM HST...THE HONOLII STREAM GAGE CONTINUES TO SHOW ELEVATED WATER 
LEVELS INDICATING SIGNIFICANT RUNOFF CONTINUES FROM EARLIER HEAVY RAINFALL. 
THE HAWAII COUNTY POLICE DEPARTMENT REPORTS THAT ONE LANE OF HIGHWAY 19 AT 
KAAWALII GULCH WAS OPENED EARLIER THIS EVENING TO ALLOW TRAFFIC TO PASS 
THROUGH THIS AREA WHERE A LAND SLIDE OCCURRED DUE TO HEAVY RAINFALL.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...
HILO...HAWAIIAN PARADISE PARK...KAPAAU...HONOKAA...HONOMU...KEAAU...
LAUPAHOEHOE...PAHOA AND PEPEEKEO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING IN
STREAMS...ROADS AND LOW LYING AREAS. MOVE TO HIGHER GROUND NOW.

DO NOT CROSS FAST FLOWING OR RISING WATER IN YOUR VEHICLE OR ON FOOT.
TURN AROUND...DON/T DROWN.

&&

THIS WARNING MAY NEED TO BE EXTENDED BEYOND 1045 PM HST IF HEAVY RAIN
PERSISTS.

LAT...LON 1948 15482 1941 15491 2026 15588 2025 15577
      2020 15573 2012 15559 2011 15546 1996 15519
      1985 15509 1974 15510 1974 15500 1965 15499
      1956 15489 1953 15481

$$

HOUSTON

389 
WGHW70 PHFO 170837
FFSHFO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
1037 PM HST FRI OCT 16 2015

HIC001-170846-
/O.EXP.PHFO.FF.W.0055.000000T0000Z-151017T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HAWAII HI-
1037 PM HST FRI OCT 16 2015

...THE FLASH FLOOD WARNING FOR THE ISLAND OF HAWAII IN HAWAII COUNTY
WILL EXPIRE AT 1045 PM HST...

WEATHER RADAR SHOWED HEAVY RAIN HAS ENDED. THEREFORE...THE FLASH FLOOD 
WARNING IS ALLOWED TO EXPIRE.

LAT...LON 1948 15482 1941 15491 2026 15588 2025 15577
      2020 15573 2012 15559 2011 15546 1996 15519
      1985 15509 1974 15510 1974 15500 1965 15499
      1956 15489 1953 15481

$$

HOUSTON

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HONOLULU HI
511 PM HST FRI OCT 16 2015

.UPDATE...
ADDED SCATTERED THUNDERSTORMS TO THE BIG ISLAND THROUGH THE
EVENING GIVEN CURRENT RADAR TRENDS AND LIGHTNING OBSERVATIONS.

&&

.SYNOPSIS...
MODERATE TRADE WINDS WILL PERSIST INTO NEXT WEEK AS HIGH PRESSURE
REMAINS NORTH OF THE ISLANDS. TROPICAL MOISTURE FROM FORMER
TROPICAL CYCLONE NORA AND AN OLD FRONT WILL SPREAD ACROSS THE
ISLAND CHAIN THROUGH THE WEEKEND...RESULTING IN A WET TRADE WIND
PATTERN. THIS MOISTURE WILL PASS WEST OF THE ISLANDS BY MONDAY
WITH DRIER CONDITIONS EXPECTED DURING THE FIRST PART OF NEXT WEEK.

&&

.PREV DISCUSSION.../ISSUED 410 PM HST FRI OCT 16 2015/

SATELLITE AND RADAR ACROSS HAWAII SHOW PLENTY OF CLOUDS AND
SHOWERS PASSING OVER THE WINDWARD AND MAUKA PORTIONS OF OAHU TO
THE BIG ISLAND. THIS MOISTURE IS ASSOCIATED WITH FORMER TROPICAL
CYCLONE NORA AND A DISSIPATED FRONT THAT IS BEING DIRECTED OVER
THE STATE BY THE MODERATE TRADE WINDS.

ALOFT...A WEAK LOW IS POSITIONED WEST OF KAUAI THIS AFTERNOON AND IS
HELPING TO ENHANCE SOME OF THE SHOWERS. SOME SHOWERS HAVE BEEN LOCALLY
HEAVY AND THE BIG ISLAND HAS BEEN SEEING A FEW THUNDERSTORMS THIS
AFTERNOON. AFTERNOON SOUNDINGS...NOT SURPRISINGLY...SHOW AN
UNSTABLE ATMOSPHERIC PROFILE AT HILO WHILE A WEAK 5000 FOOT
INVERSION IS PRESENT AT LIHUE.

EXPECT THESE SHOWERS TO CONTINUE MAINLY FOR THE WINDWARD PORTIONS
OF OAHU...MOLOKAI...MAUI AND THE BIG ISLAND. SOME OF THESE
SHOWERS WILL BE LOCALLY HEAVY DUE TO THE INSTABILITY CAUSED BY THE
UPPER TROUGH. INTERMITTENT PASSING SHOWERS WILL LIKELY IMPACT THE
LEEWARD SIDES OF THE SMALLER ISLANDS...BUT SHOULD SHOWERS SHOULD
BE MAINLY WINDWARD FOCUSED. A SLIGHT CHANCE

THIS MOISTURE WILL LINGER ACROSS THE STATE WITH MODERATE TRADE
WINDS THIS WEEKEND...THUS EXPECT TO SEE A CONTINUATION OF THE
HIGHER THAN NORMAL CHANCES FOR RAIN...WITH A GRADUAL SHIFT OF THE
RAIN TO THE WESTERN END OF THE STATE NOW THROUGH SUNDAY. HEAVY
RAIN IS EXPECTED AT TIMES THROUGH SATURDAY...MAINLY FOR THE
WINDWARD AND MAUKA AREAS. A SLIGHT CHANCE OF THUNDERSTORMS IS ALSO
IN THE FORECAST FOR THE BIG ISLAND SATURDAY AFTERNOON.

THE MOISTURE SHOULD MOVE WEST OF THE STATE BY MONDAY AND WE WILL
RETURN TO A DRIER AND MORE STABLE WEATHER PATTERN THROUGH MUCH OF
NEXT WEEK. A NEW HIGH WILL EMERGE AND PASS NORTH OF THE ISLANDS
NEXT WEEK WEDNESDAY...RESULTING IN STRENGTHENING TRADE WINDS.

THE SOUTH BIG ISLAND UNIT WITH THE CALL SIGN PHWA/HWC...IS DOWN
DUE TO A HARDWARE ISSUE WHERE THE RADAR WILL NOT BE FIXED UNTIL
SOMETIME NEXT WEEK.

&&

.AVIATION...
MOISTURE EMBEDDED IN THE TRADES COMBINED WITH AN UPPER LOW W OF THE
AREA IS PRODUCING SCATTERED SHOWERS OVER WINDWARD AND MAUKA AREAS
WITH A FEW SHOWERS ALSO SEEN OVER THE LEEWARD SLOPES OF THE BIG
ISLAND. A FEW THUNDERSTORMS CAN BE EXPECTED OVER THE BIG ISLAND
SLOPES THROUGH THIS EVENING. MVFR CONDITIONS WILL PREVAIL OVER
MOST WINDWARD AND MAUKA AREAS OVERNIGHT DUE TO LOW CLOUDS AND
SHRA.

&&

.MARINE...
A LONG PERIOD SOUTH SWELL WILL MAINTAIN TONIGHT ACROSS THE STATE
RESULTING IN SURF HEIGHTS REACHING ADVISORY LEVELS. A HIGH SURF
ADVISORY IS NOW IN EFFECT FOR SOUTH FACING SHORES OF ALL ISLANDS
THROUGH SATURDAY NIGHT...WITH THE SWELL EXPECTED TO DECLINE
AFTERWARD. ANOTHER LONG PERIOD SOUTH SWELL WILL ARRIVE IN THE
ISLANDS EARLY THURSDAY MORNING NEXT WEEK.

A MODERATE SHORT-PERIOD SWELL FROM THE NORTH WILL GRADUALLY LOWER
THROUGH THE WEEKEND. A SLIGHTLY SMALLER NORTHWEST SWELL WILL ARRIVE
DURING THE MIDDLE OF NEXT WEEK...PEAKING WEDNESDAY AND THEN
LOWERING TOWARDS THE END OF THE WEEK.

A SMALL CRAFT ADVISORY CONTINUES FOR THE ALENUIHAHA...PAILOLO
CHANNELS AND MAALAEA BAY THROUGH TONIGHT DUE TO TRADE WINDS
ACCELERATING THROUGH THE TERRAIN SURROUNDING THESE AREAS. THE SCA
IS EXPECTED TO BE DROPPED IN THE MORNING. THE BACKGROUND FLOW
SHOULD BE NEARLY THE SAME OVER THE NEXT SEVERAL DAYS AND SOME
ZONES MAY REMAIN BORDERLINE SCA CONDITIONS...THUS POSSIBLE WE MAY
ISSUE AN SCA FOR WINDS DURING THE NEXT WEEK IF OBSERVATIONS AND
ASCAT SHOW EVIDENCE OF TEMPORARY STRONGER WINDS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SUNDAY FOR SOUTH FACING SHORES
OF NIIHAU KAUAI OAHU MOLOKAI LANAI KAHOOLAWE MAUI AND BIG ISLAND.

SMALL CRAFT ADVISORY UNTIL 6 AM HST SATURDAY FOR MAALAEA BAY-
PAILOLO CHANNEL-ALENUIHAHA CHANNEL.

&&

UPDATE/DISCUSSION/MARINE...FOSTER
AVIATION...BURKE