Special Marine Warning

Special Marine Warning
PHZ118-231815-
/O.NEW.PHFO.MA.W.0012.230323T1641Z-230323T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Honolulu HI
641 AM HST Thu Mar 23 2023

The National Weather Service in Honolulu has issued a

* Special Marine Warning for...
  Maui County Leeward Waters...

* Until 815 AM HST.

* At 640 AM HST, a strong thunderstorm capable of producing
  waterspouts was located 12 nm west of FAD Buoy MC, or 26 nm
  southwest of Lanai Airport, moving northeast at 5 knots.

  HAZARD...Waterspouts, Wind gusts 34 knots or greater, and small
           hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  FAD Buoy MC and FAD Buoy K.

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.

&&

LAT...LON 2092 15744 2066 15694 2026 15741 2036 15753
      2049 15759 2057 15769
TIME...MOT...LOC 1640Z 234DEG 7KT 2056 15736

WATERSPOUT...POSSIBLE
HAIL...<.75IN
WIND...>34KTS

$$

Shigesato

Flood Watch

Flood Watch
National Weather Service Honolulu HI
449 AM HST Thu Mar 23 2023

...FLOOD WATCH FOR OAHU THROUGH THIS AFTERNOON...

HIZ006-007-009>011-032>036-240400-
/O.CON.PHFO.FA.A.0004.000000T0000Z-230324T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Waianae Coast-Oahu North Shore-Olomana-Central Oahu-Waianae
Mountains-East Honolulu-Honolulu Metro-Ewa Plain-Koolau Windward-
Koolau Leeward-
449 AM HST Thu Mar 23 2023

...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON...

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

* WHERE...Oahu.

* WHEN...Through this 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...
  - Several rounds of slow-moving heavy showers and thunderstorms
    are expected to move over Oahu from the south today, bringing
    periods of heavy rainfall to both leeward and windward
    communities.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A Flood Watch means that conditions are favorable for flash
flooding. Flash Flooding is LIFE THREATENING. Do not cross fast
flowing water in your vehicle or on foot.

&&

$$

Birchard