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High Wind Warning


URGENT - WEATHER MESSAGE
National Weather Service Honolulu HI
358 AM HST Sat Apr 29 2017

...HIGH WIND WARNING FOR THE BIG ISLAND SUMMITS THROUGH SUNDAY
NIGHT...

.A potent upper level low will drop southward toward the western
end of the state today, then pass southward through Kauai late
tonight or early Sunday. This will result in an increase in winds
across the Big Island summits today, with winds peaking at Warning
levels late this afternoon through Sunday night.

HIZ028-300400-
/O.NEW.PHFO.HW.W.0008.170429T1358Z-170501T1600Z/
Big Island Summits-
358 AM HST Sat Apr 29 2017

...HIGH WIND WARNING IN EFFECT UNTIL 6 AM HST MONDAY...

The National Weather Service in Honolulu has issued a High Wind
Warning, which is in effect until 6 AM HST Monday.

* TIMING...Through Sunday night.

* WINDS...Southwest winds increasing to 55 to 70 mph with gusts
  to 80 mph.

* IMPACTS...Dangerously strong winds will make driving hazardous.
  Travel to summit areas should be delayed until winds subside.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means that winds at the summits are expected
to be at least 56 mph, with gusts over 66 mph. Take necessary
precautions to protect property. Travel to summit areas should be
delayed until winds subside.

&&

$$


Flash Flood Watch


Flood Watch
National Weather Service Honolulu HI
357 AM HST Sat Apr 29 2017

...FLASH FLOOD WATCH FOR OAHU MAUI COUNTY AND THE BIG ISLAND...

HIZ005>028-300300-
/O.CON.PHFO.FF.A.0004.000000T0000Z-170501T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Oahu South Shore-Waianae Coast-Oahu North Shore-Oahu Koolau-
Olomana-Central Oahu-Waianae Mountains-Molokai Windward-
Molokai Leeward-Lanai Makai-Lanai Mauka-Kahoolawe-
Maui Windward West-Maui Leeward West-Maui Central Valley-
Windward Haleakala-Leeward Haleakala-Haleakala Summit-Kona-
South Big Island-Big Island North and East-Kohala-
Big Island Interior-Big Island Summits-
357 AM HST Sat Apr 29 2017

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON...

The Flash Flood Watch continues for

* Kahoolawe, Lanai, Maui, Molokai, Oahu and the Big Island.

* Through Sunday afternoon.

* A front will stall over the central islands at the same time as
  a potent low aloft moves over the western end of the state. This
  will result in periods of heavy showers and thunderstorms that
  could result in flash-flooding. Forecast models continue to
  indicate that the greatest threat for flooding will occur over
  Maui county, but given the unstable environment over the
  central and eastern islands, Oahu and the Big Island have the
  potential to receive heavy flooding rains as well.

* Heavy rain is expected to be widespread, especially in Maui
  county through the weekend. Rain will not only affect windward
  areas, but will also impact urban and leeward areas which are
  more susceptible to flooding problems, especially in south and
  west Maui. These areas include Kihei, Lahaina, Kaanapali, and
  low-water crossings along Piilani Highway between Kaupo and
  Ulupalakua.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$


Flood Advisory


Flood Advisory
National Weather Service Honolulu HI
1103 AM HST SAT APR 29 2017

HIC009-292230-
/O.CON.PHFO.FA.Y.0078.000000T0000Z-170429T2230Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Maui HI-
1103 AM HST SAT APR 29 2017

...THE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1230 PM HST FOR THE
ISLAND OF MAUI IN MAUI COUNTY...

At 1100 AM HST...radar indicated a widespread area of light rain
moving over Maui from the southwest, with embedded heavier showers,
especially near south Maui. Runoff remains high from earlier
rainfall, and Maui Police reports that South Kihei Road in Kihei is
closed to traffic between Kaonoulu Road and Maui Lu due to water on
the roadway.

Locations in the advisory include all of Maui.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Stay away from streams, drainage ditches and low lying areas prone to
flooding.

Rainfall and runoff will also cause hazardous driving conditions due
to ponding, reduced visibility and poor braking action.

Do not cross fast flowing or rising water in your vehicle, or on
foot. Turn around, don`t drown.

&&

A flash flood watch remains in effect.

LAT...LON 2064 15607 2063 15622 2059 15630 2059 15642
      2064 15646 2079 15647 2081 15663 2093 15670
      2101 15667 2104 15660 2090 15648 2095 15633
      2094 15625 2082 15611 2080 15601 2073 15599

$$

Birchard


High Surf Advisory


COASTAL HAZARD MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE HONOLULU HI
910 AM HST SAT APR 29 2017

...HIGH SURF ADVISORY FOR SOUTH FACING SHORES...

.A LONG PERIOD SOUTH SWELL WILL CONTINUE TO PRODUCE ADVISORY
LEVEL SURF ALONG THE EXPOSED SOUTH FACING SHORES OF ALL ISLANDS
THROUGH TODAY.

HIZ001>003-005-012>014-016-018-019-021-023-024-300400-
/O.COR.PHFO.SU.Y.0031.000000T0000Z-170430T0400Z/
NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-
MOLOKAI WINDWARD-MOLOKAI LEEWARD-LANAI MAKAI-KAHOOLAWE-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-LEEWARD HALEAKALA-KONA-
SOUTH BIG ISLAND-
910 AM HST SAT APR 29 2017

...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 6 PM HST THIS EVENING...

* SURF...5 TO 8 FEET ALONG SOUTH FACING SHORES.

* TIMING...THROUGH THIS AFTERNOON.

* IMPACTS...MODERATE...EXPECT STRONG BREAKING WAVES, SHORE
  BREAK, AND STRONG LONGSHORE AND RIP CURRENTS MAKING SWIMMING
  DIFFICULT AND DANGEROUS

.PRECAUTIONARY/PREPAREDNESS ACTIONS...

BEACHGOERS, SWIMMERS, AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY
OCEAN SAFETY OFFICIALS AND EXERCISE CAUTION. BOATERS SHOULD
EXPECT RECREATIONAL SURFERS AND BODY BOARDERS UTILIZING HARBOR
CHANNELS TO ACCESS SURFING AREAS.

&&

$$


Winter Storm Watch


URGENT - WINTER WEATHER MESSAGE
National Weather Service Honolulu HI
357 AM HST Sat Apr 29 2017

...WINTER STORM WATCH FOR BIG ISLAND SUMMITS...

.A potent low aloft will move over the western end of the state this
weekend, bringing the potential for winter weather to the Big
Island summits.

HIZ028-300400-
/O.EXT.PHFO.WS.A.0003.170430T0400Z-170501T0400Z/
Big Island Summits-
357 AM HST Sat Apr 29 2017

...WINTER STORM WATCH NOW IN EFFECT FROM THIS EVENING THROUGH
SUNDAY AFTERNOON...

* LOCATION...Big Island summits and upper slopes.

* HAZARD TYPE...Heavy snow and blowing snow.

* ACCUMULATIONS...Snowfall up to 6 inches possible.

* TIMING...Tonight through Sunday.

* IMPACTS...Poor visibility and snow covered roads.

* WINDS...Southwest to west 55 to 70 mph with gusts to 80 mph.

* VISIBILITIES...Less than 1/4 mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is a potential for significant
snow, sleet, or ice accumulations that may impact travel.
Continue to monitor the latest forecasts.

&&

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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