Interactive NWS Alert

Radar valid at 815 pm HST, Sep 17th 2026

HIC001-180615-
/O.NEW.PHFO.FA.Y.0156.260918T0310Z-260918T0615Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hawaii HI-
510 PM HST Thu Sep 17 2026

...FLOOD ADVISORY IN EFFECT UNTIL 815 PM HST THIS EVENING...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...The island of Hawaii in Hawaii County...

* WHEN...Until 815 PM HST.

* IMPACTS...Minor flooding on roads, poor drainage areas, and in
streams.

* ADDITIONAL DETAILS...
- At 507 PM HST, Doppler radar indicated heavy rain over the
Hamakua, North Hilo, South Hilo, Puna, and Kau Districts of the
Big Island.Rain was falling at a rate of 0.5 to 1 inch per hour.
Minor flooding is ongoing or expected to begin shortly in the
advisory area.
- Some locations that will experience flooding include...
Hilo, Hawaiian Paradise Park, Volcano, Glenwood, Mountain View,
Hawaii Volcanoes National Park, Hawaiian Acres, Keaau,
Orchidlands Estates, Papaikou and Pepeekeo.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Stay away from streams, drainage ditches and low lying areas prone to
flooding.

&&

LAT...LON 1933 15568 1952 15553 1979 15550 1997 15558
2011 15540 2000 15520 1987 15507 1977 15506
1976 15499 1965 15496 1952 15478 1944 15482
1932 15497 1924 15516 1923 15529 1913 15543
1911 15549 1896 15556

iNWS is an experimental service intended for NWS core partners, including emergency managers, community leaders and other government agencies only.