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Hawaii, Waianae Mountains

Areal Flood Advisory, Flash Flood Watch

Statement as of 4:53 PM HST on February 27, 2017

Expires 11:00 PM EST on March 01, 2017


... The flood advisory remains in effect until 545 PM HST for the
island of Oahu in Honolulu County...

At 449 PM HST, radar indicated that the very heavy showers and
thunderstorms over the Waianae mountains have ended. A few moderate
showers continue over the koolau, near areas which had
heavy rain earlier. Thus the flood advisory will remain in effect
for portions of the koolau mountain range, as well as portions of
windward and central Oahu.

Conditions remain favorable for the redevelopment of heavy rain this
evening over windward Oahu, so a Flash Flood Watch also remains in
effect.

Locations in the advisory include but are not limited to...
Aiea, Hauula, Waikane, Waiahole, Kahaluu, Halawa, Wahiawa, Punaluu,
Ahuimanu, Kaaawa, Moanalua and Salt Lake.

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.


Lat... Lon 2153 15784 2147 15784 2144 15780 2144 15778
      2137 15787 2136 15790 2136 15791 2142 15795
      2147 15801 2152 15806 2153 15806 2156 15808
      2158 15804 2160 15798 2164 15792


R Ballard



300 PM HST Mon Feb 27 2017

... Flash Flood Watch remains in effect through Wednesday
afternoon...

The Flash Flood Watch continues for

* Kahoolawe, Kauai, Lanai, Maui, Molokai, Niihau, Oahu and The
Big Island.

* Through Wednesday afternoon

* increasingly moist and unstable air will overspread the islands
tonight and Tuesday. Spotty intense showers, mainly windward and
Mauka tonight, could become more widespread by Tuesday. A
strong upper level disturbance will cause a surface trough or
low to develop near the islands over the next couple of days,
enhancing the potential for heavy downpours and thunderstorms
that could lead to flash flooding. Conditions should gradually
improve later in the day on Wednesday.

* Some streams and normally dry gulches are expected to run high
and could quickly overflow their banks. Intense rainfall in
poor drainage and urban areas could also lead to flash
flooding.

Precautionary/preparedness actions...

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

Keep tuned to later forecasts and be prepared to take action
should flash flood warnings be issued. Consider postponing camping
or hiking trips until the weather improves.


R Ballard


Areal Flood Advisory, Flash Flood Watch

Statement as of 4:53 PM HST on February 27, 2017

Expires 11:00 PM EST on March 01, 2017


... The flood advisory remains in effect until 545 PM HST for the
island of Oahu in Honolulu County...

At 449 PM HST, radar indicated that the very heavy showers and
thunderstorms over the Waianae mountains have ended. A few moderate
showers continue over the koolau, near areas which had
heavy rain earlier. Thus the flood advisory will remain in effect
for portions of the koolau mountain range, as well as portions of
windward and central Oahu.

Conditions remain favorable for the redevelopment of heavy rain this
evening over windward Oahu, so a Flash Flood Watch also remains in
effect.

Locations in the advisory include but are not limited to...
Aiea, Hauula, Waikane, Waiahole, Kahaluu, Halawa, Wahiawa, Punaluu,
Ahuimanu, Kaaawa, Moanalua and Salt Lake.

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.


Lat... Lon 2153 15784 2147 15784 2144 15780 2144 15778
      2137 15787 2136 15790 2136 15791 2142 15795
      2147 15801 2152 15806 2153 15806 2156 15808
      2158 15804 2160 15798 2164 15792


R Ballard



300 PM HST Mon Feb 27 2017

... Flash Flood Watch remains in effect through Wednesday
afternoon...

The Flash Flood Watch continues for

* Kahoolawe, Kauai, Lanai, Maui, Molokai, Niihau, Oahu and The
Big Island.

* Through Wednesday afternoon

* increasingly moist and unstable air will overspread the islands
tonight and Tuesday. Spotty intense showers, mainly windward and
Mauka tonight, could become more widespread by Tuesday. A
strong upper level disturbance will cause a surface trough or
low to develop near the islands over the next couple of days,
enhancing the potential for heavy downpours and thunderstorms
that could lead to flash flooding. Conditions should gradually
improve later in the day on Wednesday.

* Some streams and normally dry gulches are expected to run high
and could quickly overflow their banks. Intense rainfall in
poor drainage and urban areas could also lead to flash
flooding.

Precautionary/preparedness actions...

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

Keep tuned to later forecasts and be prepared to take action
should flash flood warnings be issued. Consider postponing camping
or hiking trips until the weather improves.


R Ballard


Weather Severe Map
Alabama - Public Information Statement
Alaska - Winter Weather Advisory , Winter Storm Warning , Blizzard Warning
Arizona - Winter Storm Warning , Winter Weather Advisory
Arkansas - Flood Warning , Special Statement
California - Flood Warning , Areal Flood Warning , Areal Flood Warning , Areal Flood Advisory , Flash Flood Watch , Areal Flood Advisory, Flash Flood Watch , Wind Advisory , Frost Advisory, Freeze Watch , Freeze Warning, Freeze Watch , Frost Advisory , Winter Weather Advisory , Hydrologic Statement , Public Information Statement
Colorado - Winter Weather Advisory , Winter Storm Warning , Fire Weather Warning , Public Information Statement
Connecticut - Flood Warning
Florida - Coastal Hazard Statement
Hawaii - Areal Flood Advisory, Flash Flood Watch , Flash Flood Watch
Idaho - Wind Advisory , Winter Weather Advisory , Winter Storm Warning , Special Statement
Illinois - Flood Warning , Flood Watch , Public Information Statement
Indiana - Flood Warning , Public Information Statement
Iowa - Flood Warning , Flood Watch
Louisiana - Flood Warning
Michigan - Flood Advisory , Public Information Statement
Minnesota - Flood Warning
Montana - Winter Storm Warning , Winter Weather Advisory , Record Report
Nevada - Flood Warning , Winter Weather Advisory
New Mexico - Wind Advisory , High Wind Warning , High Wind Warning, Blowing Dust Advisory , Blowing Dust Advisory, Wind Advisory , Winter Storm Warning , Winter Weather Advisory , Fire Weather Warning
New York - Public Information Statement
North Dakota - Flood Warning
Ohio - Flood Warning , Public Information Statement
Oklahoma - Fire Weather Warning , Fire Weather Watch
Oregon - Winter Weather Advisory
South Dakota - Flood Warning
Tennessee - Public Information Statement
Texas - Wind Advisory , High Wind Watch , High Wind Warning , High Wind Warning, Blowing Dust Advisory , Fire Weather Warning , Fire Weather Watch
Utah - Winter Weather Advisory , Winter Storm Warning
Washington - Winter Weather Advisory
Wisconsin - Flood Warning , Special Statement
Wyoming - High Wind Watch , Winter Storm Warning , Winter Weather Advisory , Special Statement

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