Areal Flood Advisory, Flash Flood Watch, High Surf Warning
11:27 AM HST
National Weather Service
The National Weather Service in Honolulu has issued a
* Flood Advisory for...
the island of Hawaii in Hawaii County
* until 215 PM HST
* at 1120 am HST... radar and rain gages showed that rainfall over
the windward slopes of The Big Island will continue to produce
minor flooding and elevated stream levels. This rainfall is
associated with Tropical Storm Darby and is expected to continue
through the day.
* Locations in the advisory include all areas in the north kohala...
south kohala... hamakua... north Hilo...
south Hilo and puna districts.
Stay away from streams... drainage ditches and low lying areas prone
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.
This advisory may need to be extended beyond 215 PM HST if heavy rain
This advisory replaces the previously issued Flash Flood Warning
that was in effect for portions of Hawaii County.
A Flash Flood Watch is also in effect for Hawaii County through
Lat... Lon 1948 15482 1934 15499 1928 15512 1926 15520
1928 15527 1994 15565 2013 15590 2023 15591
2027 15587 2025 15577 2012 15559 2011 15546
2001 15526 1985 15509 1974 15510 1974 15500
1965 15499 1953 15481
454 am HST Sat Jul 23 2016
... Flash Flood Watch remains in effect through Sunday afternoon...
The Flash Flood Watch continues for
* Kahoolawe... Lanai... Maui... Molokai and The Big Island.
* Through Sunday afternoon
* the center of Tropical Storm Darby is forecast to move over...
or very close to... The Big Island today... and the islands of
Maui County late tonight into Sunday morning. Excessive
rainfall is expected to become widespread on The Big Island
today... and over Maui County this afternoon into tonight.
* In addition to flood prone areas... heavy rain events of this
size may cause flooding in areas outside designated flood
zones. Storm total rainfall amounts are forecast to be between
10 and 15 inches... with locally higher amounts possible. Low
spots in roads can become dangerous and impassable due to
severe runoff. High amounts of debris in streams and gulches
may clog bridges and culverts resulting in dangerous flooding
which could occur outside the normal channels... and could also
lead to significant property damage.
A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is very dangerous.
You should monitor later forecasts and get prepared for flash
flooding this weekend. Never drive into areas where water covers
the Road. Turn around... Don/T drown.
325 am HST Sat Jul 23 2016
... High surf warning remains in effect until 6 am HST Sunday...
* surf... surf 15 to 25 feet with occasional higher sets along
east facing shores. Surf observations on Friday indicated surf
as high as 20 feet along east and southeast facing shores of
The Big Island.
* Timing... through early Sunday.
* Impacts... very high... expect ocean water surging and sweeping
across beaches... coastal benches... and lava flows creating the
potential for impacts to coastal properties and
infrastructure... including roadways. Powerful longshore and
rip currents will be present at most beaches. Large breaking
waves and strong currents may impact Harbor entrances and
channels causing challenging boat handling.
Large breaking surf... significant shorebreak... and dangerous
currents make entering the water very hazardous. Anyone entering
the water could face significant injury or death.