Areal Flood Advisory, Flash Flood Watch, High Surf Warning
1:01 PM HST
National Weather Service
The National Weather Service in Honolulu has issued a
* Flood Advisory for...
the island of Maui in Maui County
* until 345 PM HST
* at 1251 PM HST... radar indicated rainfall along the windward
slopes of Haleakala has diminished but stream gages showed
elevated water levels. In addition... emergency managers reported
that some streams in leeward west Maui had high flow levels due to
heavy upslope rainfall. Additional rainfall associated with
Tropical Storm Darby will continue through today.
* Locations in the advisory include but are not limited to...
Kahului... Pukalani... Haliimaile... Honokohau... Pauwela... Wailuku...
Huelo... Keanae... Nahiku... Hana... Lahaina... Kaanapali... Kula...
and all locations along the Hana Highway.
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 345 PM HST if heavy rain
This advisory replaces the previously issued advisory that was in
effect for portions of the island of Maui in Maui County.
A Flash Flood Watch is also in effect for Maui County through Sunday
Lat... Lon 2069 15601 2064 15609 2079 15641 2078 15654
2081 15663 2093 15671 2101 15667 2104 15660
2102 15656 2090 15648 2095 15633 2094 15625
2082 15611 2080 15601 2073 15599
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.