Oahu Koolau Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Flash Flood Warning
Issued: 12:05 AM HST Jul. 25, 2016 – National Weather Service

The National Weather Service in Honolulu has extended the

* Flash Flood Warning for...
the island of Oahu in Honolulu County

* until 330 am HST

* at midnight HST... emergency management reported several roads
flooded by heavy rain and slow runoff. Also... radar indicated
areas of moderate to heavy rain continuing on Oahu. Some of the
heavier pockets of rain were falling at a rate of 1 to 2 inches
per hour. Flash flooding is already occurring.

* Locations in the warning include...
the island of Oahu.

Precautionary/preparedness actions...

A Flash Flood Warning means that flooding in imminent or occurring in
streams... roads... and low lying areas. Move to higher ground now.

Do not cross fast flowing water in your vehicle... or on foot. Turn
around... Don/T drown.

This warning may need to be extended beyond 330 am HST if heavy rain

Lat... Lon 2153 15784 2147 15784 2141 15778 2147 15777
      2147 15773 2141 15774 2131 15765 2126 15770
      2130 15772 2126 15782 2134 15790 2130 15791
      2134 15797 2130 15811 2149 15824 2153 15823
      2158 15828 2158 15812 2169 15803 2171 15797


Flash Flood Watch, High Surf Advisory
Issued: 3:46 PM HST Jul. 24, 2016 – National Weather Service

... Flash Flood Watch remains in effect through Monday morning...

The Flash Flood Watch continues for

* Oahu

* through Monday morning.

* Rain bands around Tropical Storm Darby will bring frequent
showers and isolated thunderstorms... with periods of heavy
rainfall and flash flooding possible tonight and Monday morning.

Precautionary/preparedness actions...

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 be prepared to take action
should flash flood warnings be issued.

330 PM HST sun Jul 24 2016

... High surf advisory now in effect until 6 am HST Monday...

* surf... 6 to 9 feet along east facing shores.

* Timing... through 6 am HST Monday.

* 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. Know your limits
and seek ocean recreation areas best suited for your abilities.


Tropical Storm Warning
Issued: 11:31 PM HST Jul. 24, 2016 – National Weather Service

... Tropical Storm Warning remains in effect...

... Precautionary/preparedness actions...
precautionary/preparedness actions...

Tropical storms can bring very heavy rain leading to flash
flooding. People near streams... rivers... and low-lying flood
prone areas are urged to be especially alert to flash flooding.
In areas where strong winds are occurring... remain indoors.

If you are using a portable generator... review the operators
manual and observe all safety precautions to avoid Carbon
monoxide poisoning... electrocution... or fires. Portable
generators should be operated outdoors... in a dry and well
ventilated place.

... Winds...
as Tropical Storm Darby exits the area... winds will continue to
diminish. Warnings will be discontinued as soon as tropical storm
threats completely subside.

... Storm surge and storm tide...
surf along east facing shores of Oahu will be 5 to 8 feet. See
the high surf advisory for more details.

... Inland flooding...
slow-moving rainbands continue over Oahu with several areas
experiencing flooding conditions. There is a chance for more
intense downpours or thunderstorms to develop tonight and Monday.
If heavier storms develop... they could cause more flash flooding.
See the Flash Flood Watch for more details.

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