Special Marine Warning

Special Marine Warning
PHZ112-200100-
/O.NEW.PHFO.MA.W.0049.260319T2355Z-260320T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Honolulu HI
155 PM HST Thu Mar 19 2026

The National Weather Service in Honolulu has issued a

* Special Marine Warning for...
  Kauai Leeward Waters...

* Until 300 PM HST.

* At 154 PM HST, a thunderstorm capable of producing waterspouts was
  located 19 nm southeast of southern tip of Niihau, or 33 nm
  southwest of Kekaha, moving east at 10 knots.

  HAZARD...Waterspouts and wind gusts 34 knots or greater.

  SOURCE...Radar.

  IMPACT...Waterspouts can easily overturn boats and create locally
           hazardous seas. Small craft could be damaged in briefly
           higher winds and suddenly higher waves.

* The severe thunderstorm will remain over mainly open waters.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare for gusty winds, steep and fast-building seas, and blinding
downpours. Stay low or go below, and make sure all on board are
wearing life jackets.

Thunderstorms can produce sudden waterspouts. Waterspouts can easily
overturn boats and create locally hazardous seas. Seek safe harbor
immediately.

&&

LAT...LON 2145 16018 2161 16012 2162 15965 2129 15970
TIME...MOT...LOC 2354Z 276DEG 11KT 2151 16003

WATERSPOUT...POSSIBLE
HAIL...0.00IN
WIND...>34KTS

$$

Wroe

Flood Watch

Flood Watch
National Weather Service Honolulu HI
907 AM HST Thu Mar 19 2026

...FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH SUNDAY AFTERNOON
FOR THE STATE OF HAWAII...

HIZ001-003-004-029>031-200915-
/O.EXA.PHFO.FA.A.0006.260320T0400Z-260323T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Niihau-Kauai Southwest-Kauai Mountains-Kauai North-Kauai East-
Kauai South-
907 AM HST Thu Mar 19 2026

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Niihau and Kauai.

* WHEN...From 6 PM HST this evening through Sunday afternoon.

* IMPACTS...Flood prone roads and other low lying areas may be
  closed due to elevated runoff and overflowing streams. Urban areas
  may receive more significant flooding and property damage due to
  rapid runoff.

* ADDITIONAL DETAILS...
  - A kona low developing west of the islands will draw abundant
    moisture northward as it strengthens and eventually departs
    to north early next week. Several rounds of moderate to heavy
    rainfall are anticipated. The heaviest rain is expected from
    Friday night through Saturday.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

Flood Watch
National Weather Service Honolulu HI
907 AM HST Thu Mar 19 2026

...FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH SUNDAY AFTERNOON
FOR THE STATE OF HAWAII...

HIZ006-007-009>011-015>018-022-023-026-027-032>054-200915-
/O.CON.PHFO.FA.A.0006.260320T0400Z-260323T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Waianae Coast-Oahu North Shore-Olomana-Central Oahu-Waianae
Mountains-Lanai Mauka-Kahoolawe-Maui Windward West-Maui Leeward
West-Haleakala Summit-Kona-Kohala-Big Island Interior-East
Honolulu-Honolulu Metro-Ewa Plain-Koolau Windward-Koolau Leeward-
Molokai Windward-Molokai Southeast-Molokai North-Molokai West-
Molokai Leeward South-Lanai Windward-Lanai Leeward-Lanai South-
Maui Central Valley North-Maui Central Valley South-Windward
Haleakala-Kipahulu-South Maui/Upcountry-South Haleakala-Big
Island South-Big Island Southeast-Big Island East-Big Island
North-
907 AM HST Thu Mar 19 2026

* WHAT...Flash flooding caused by excessive rainfall continues to be
  possible.

* WHERE...The island of Oahu in Honolulu County, Maui, Molokai,
  Lanai, Kahoolawe, and the Big Island.

* WHEN...From 6 PM HST this evening through Sunday afternoon.

* IMPACTS...Flood prone roads and other low lying areas may be
  closed due to elevated runoff and overflowing streams. Urban areas
  may receive more significant flooding and property damage due to
  rapid runoff.

* ADDITIONAL DETAILS...
  - A kona low developing west of the islands will draw abundant
    moisture northward as it strengthens and eventually departs
    to north early next week. Several rounds of moderate to heavy
    rainfall are anticipated. The heaviest rain is expected from
    Friday night through Saturday.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

JVC