Flash Flood Warning 40, NWS Honolulu, HI

757 
WGHW50 PHFO 130034
FFWHFO
HIC003-130245-
/O.EXT.PHFO.FF.W.0040.000000T0000Z-130513T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
234 PM HST SUN MAY 12 2013

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE ISLAND OF OAHU IN HONOLULU COUNTY

* UNTIL 445 PM HST

* AT 222 PM HST...RAIN GAUGES IN THE KOOLAU RANGE CONTINUE TO SHOW 
  LOCALLY HEAVY RAIN FALLING AT AN INCH PER HOUR OR GREATER ON 
  NEARLY SATURATED GROUND. WINDWARD STREAMS REMAIN ELEVATED WITH 
  SOME HOVERING AROUND FLOOD LEVELS AT WAIKANE AND WAIAHOLE. OAHU 
  DEPARTMENT OF EMERGENCY MANAGEMENT RECENTLY REPORTED SEVERAL 
  INCHES OF WATER ON KAMEHAMEHA HIGHWAY AT WAIKANE...THOUGH THE ROAD 
  REMAINS OPEN.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  PUNALUU...WAIKANE...LAIE AND HAUULA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLASH 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 FLASH FLOOD WARNING REPLACES THE PRE-EXISTING WARNING THAT WAS
IN EFFECT FOR THE ISLAND OF OAHU IN HONOLULU COUNTY.

THIS WARNING MAY NEED TO BE EXTENDED BEYOND 445 PM HST IF FLASH
FLOODING PERSISTS.

LAT...LON 2148 15792 2162 15799 2169 15792 2133 15766
      2131 15776

$$
WROE

420 
WGHW70 PHFO 130128
FFSHFO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
328 PM HST SUN MAY 12 2013

HIC003-130137-
/O.CAN.PHFO.FF.W.0040.000000T0000Z-130513T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HONOLULU HI-
328 PM HST SUN MAY 12 2013

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

WEATHER RADAR AND RAIN GAGES SHOWED THAT THE HEAVY RAINS HAVE 
DIMINISHED ALONG THE KOOLAU RANGE...AND OAHU DEPARTMENT OF EMERGENCY 
MANAGEMENT REPORTS THAT THE WAIKANE STREAM NEAR KAMEHAMEHA HIGHWAY 
HAS DROPPED SLIGHTLY. THUS THE FLASH FLOOD WARNING IS CANCELLED.

THE HEAVY RAINS AND FLOODING HAVE SUBSIDED...BUT RUNOFF IS STILL
OCCURRING AND STREAMS WILL REMAIN HIGH FOR SEVERAL HOURS.

LAT...LON 2148 15792 2162 15799 2169 15792 2133 15766
      2131 15776

$$

WROE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
1000 AM HST SUN MAY 12 2013

.SYNOPSIS...
MODERATE TO FRESH TRADE WINDS ARE EXPECTED TO PREVAIL FOR MOST OF
THE WEEK. THE WEAKEST WINDS ARE EXPECTED MONDAY AND TUESDAY.
WINDWARD AREAS WILL HAVE WET TRADE WINDS THROUGH MONDAY AS AN AREA
OF ENHANCED MOISTURE LINGERS OVER THE CENTRAL ISLANDS THIS
MORNING...AND THEN LIFTS NORTHWARD AND DISSIPATES. A MORE TYPICAL
TRADE WIND WEATHER PATTERN IS EXPECTED DURING THE REMAINDER OF THE
WEEK.

&&

.DISCUSSION...
CLOUDS ASSOCIATED WITH A DISSIPATED FRONT IS THE PRIMARY CLOUD
FEATURE OVER AND AROUND THE STATE. THIS IS PROVIDING SOME SHOWERS
FOR MOST WINDWARD AND MAUKA AREAS WITH MAUI COUNTY HAVING THE
GREATEST CONCENTRATION OF SHOWERS OVER THEM.

THE SURFACE WIND FIELD ASSOCIATED WITH THIS FRONT NOW RESEMBLES AN
INVERTED TROUGH WITH ITS AXIS JUST TO THE EAST OF THE BIG ISLAND. IN
THE MEANTIME HIGH PRESSURE HAS BEEN BUILDING IN TO OUR NORTH WITH A
PRONOUNCED RETURN OF THE TRADES. AS THE HIGH MOVES EASTWARD OVER THE
NEXT COUPLE OF DAYS...THE SURFACE TROUGH WILL GET PUSHED WESTWARD
ACROSS THE STATE EARLY NEXT WEEK. THIS WILL CAUSE A BRIEF DROP OFF
IN TRADE WINDS SPEEDS MONDAY INTO TUESDAY. AS THE TROUGH EXISTS TO
THE WEST TRADE WIND SPEEDS WILL ONCE AGAIN PICK UP TO MODERATE
LEVELS.

THE REMNANT MOISTURE FROM THE DISSIPATED FRONT WILL CONTINUE TO
PROVIDE SHOWERS FOR MOST WINDWARD AND MAUKA AREAS WITH ONLY A FEW
BRIEF LIGHT SHOWERS EXPECTED OVER MOST LEEWARD LOCATIONS. THIS
MOISTURE WILL GRADUALLY LIFT OFF TO THE NORTH AND EAST AS WE HEAD
INTO THE MIDDLE OF THE WEEK WITH SLIGHTLY DRIER CONDITIONS EXPECTED.

LATE IN THE WEEK MODELS ARE DEPICTING AN UPPER LEVEL TROUGH MAY
DEVELOP OVER THE AREA THOUGH THERE ARE DIFFERENCES IN THE TIMING AND
STRENGTH. WITH TRADE WINDS CONTINUING...SHOWERS WILL CONTINUE TO
FAVOR WINDWARD AND MAUKA AREAS.

&&

.AVIATION...
MOISTURE ASSOCIATED WITH THE DISSIPATED FRONT DESCRIBED ABOVE WILL
CONTINUE TO AFFECT WINDWARD SECTIONS OF THE ISLANDS...LEADING TO
PERSISTENT MVFR CEILINGS/OCCASIONAL MVFR VISIBILITIES. BRIEF IFR
CONDITIONS ARE ALSO POSSIBLE. AN AIRMET FOR MOUNTAIN OBSCURATION
REMAINS IN EFFECT FOR WINDWARD SECTIONS. CONDITIONS WILL IMPROVE
SOMEWHAT THIS AFTERNOON WITH DAYTIME HEATING...BUT IT WILL NOT BE
UNTIL TONIGHT/MONDAY WHEN DRIER AIR MOVES IN ACROSS THE STATE THAT
CLOUDS WILL START TO CLEAR OUT.

&&

.MARINE...
A SMALL CRAFT ADVISORY IS PRESENTLY UP FOR THE FOR THE
KAIWI...PAILOLO AND ALENUIHAHA CHANNELS...AS WELL AS MAALAEA BAY.
WINDS ARE EXPECTED TO REACH SMALL CRAFT ADVISORY LEVELS NEAR SOUTH
POINT TONIGHT. THE WINDS ARE EXPECTED TO DROP SOME MONDAY...AND THEN
INCREASE AGAIN TUESDAY NIGHT AND WEDNESDAY.

THE CURRENT SHORT PERIOD NORTH NORTHWEST SWELL WILL GRADUALLY LOWER
ON MONDAY. AN ADVISORY LEVEL SOUTH SWELL IS EXPECTED TO ARRIVE BY
WEDNESDAY NIGHT. THE STRONG STORM THAT PRODUCED THIS SWELL LINGERED
TO THE EAST OF NEW ZEALAND FOR SEVERAL DAYS WITH MULTIPLE PULSES OF
ENERGY AIMED AT HAWAII. THUS THE SWELL WILL PULSATE WITH VARIES
SIZES AND PERIODS BUT REMAIN ELEVATED THROUGH NEXT WEEKEND.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
SMALL CRAFT ADVISORY UNTIL 6 AM MONDAY FOR KAIWI CHANNEL-MAALAEA
BAY-PAILOLO CHANNEL-ALENUIHAHA CHANNEL.

SMALL CRAFT ADVISORY FROM 6 PM TONIGHT TO 6 AM MONDAY FOR BIG ISLAND
LEEWARD WATERS-BIG ISLAND SOUTHEAST WATERS.

&&

DISCUSSION/MARINE...BURKE
AVIATION...BRAVENDER