Central Oahu Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Flash Flood Watch
Issued: 6:05 PM HST Jul. 23, 2016 – National Weather Service

... Flash Flood Watch remains in effect through late Sunday
night...

The Flash Flood Watch continues for

* Oahu

* through late Sunday night.

* Passing rainbands will bring periods of showers. There is a
chance for heavier showers or thunderstorms to develop on Oahu
Sunday. If storms develop... they could cause flash flooding.
Storm total rainfall amounts of 3 to 5 inches... with isolated
amounts up to 10 inches in higher terrain... are possible. See
the Flash Flood Watch for more details.

* In addition to flood prone areas... heavy rain events of this
size may cause flooding in areas outside designated flood zones.
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.

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 get prepared for flash
flooding this weekend. Never drive into areas where water covers
the Road. Turn around... Don/T drown.


R Ballard



Tropical Storm Warning
Issued: 5:55 PM HST Jul. 23, 2016 – National Weather Service

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

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

Secure outdoor objects which can be blown around and cause
additional damage. 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.


... Inland flooding...
passing rainbands will bring periods of showers. There is a chance
for intense downpours or thunderstorms to develop tonight... mainly
near The Big Island tonight... spreading to Maui County overnight...
and then to Oahu and Kauai on Sunday. If heavier storms develop...
they could cause significant flash flooding. Storm total rainfall
amounts of 8 to 12 inches... with isolated amounts up to 15 inches
in higher terrain... are possible. See the Flash Flood Watch for more
details.

... Winds...
localized damaging winds of 30 to 40 mph can be expected with
Darby... along with gusts of 50 to 60 mph or greater. These winds
are most likely over mountainous terrain... through passes...
and to the west or southwest of the mountains where winds will
be blowing downslope.

Loose items... such as garbage cans and outdoor furniture... will
be blown around. Newly planted or Young trees and shrubs may be
uprooted if not secured properly. Isolated power outages will be
possible.

... Storm surge and storm tide...
surf along east facing shores of The Big Island and Maui will be
15 to 20 feet tonight and lower to 10 to 15 feet on Sunday. Surf
along east facing shores of Kauai... Oahu... and Molokai will be
10 to 14 feet tonight and lower to 6 to 9 feet on Sunday. See the
high surf product for more details.

... Probability of tropical storm/hurricane conditions...
the chance for tropical storm conditions is 40 percent at Lihue...
46 percent at Honolulu... 34 percent at Kaunakakai... 50 percent
at Lanai City... 28 percent at Kahului... and 18 percent at Hana.
Wind conditions will continue to improve on The Big Island
overnight.

R Ballard



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