Station Name: Kahului, Kahului Harbor
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -5 feet

Nearest Address:
9999 Wahine Pio Ave
Kahului, HI 96732
Maui County

GPS Coordinates: 20.895, -156.469

Nearby Water Temperatures

Special Weather Statement issued March 9 at 3:20AM HST by NWS Honolulu HI

Effective: Mon March 9, 2026, 3:20 AM
Expires: Mon March 9, 2026, 4:30 PM

A powerful kona storm will begin impacting the western end of the state as early as Tuesday, then spread across the remainder of the island chain by midweek. While flash flooding remains a major concern (see the Flood Watch and Hydrologic Outlook for additional details), confidence is increasing that strong to severe thunderstorms may develop Wednesday into the weekend. Damaging winds will likely be the primary hazard with these storms, though large hail cannot be ruled out. In addition to the heavy rainfall and severe thunderstorm threat, strong and potentially damaging kona winds are possible late in the week and into the weekend.

Hydrologic Outlook issued March 9 at 3:10AM HST by NWS Honolulu HI

Effective: Mon March 9, 2026, 3:10 AM
Expires: Mon March 9, 2026, 5:15 PM

ESFHFO A large kona low developing northwest of the state over the next couple of days will draw a very moist southerly air mass northward across the islands. This will bring periods of heavy rain And thunderstorms along with an increasing risk of considerable flash flooding. A Flood Watch has been issued for Kauai County and Oahu beginning Tuesday as the surge of deep tropical moisture arrives. As the storm strengthens and spreads eastward, the flooding threat will expand down the island chain and the Flood Watch will likely be extended to include Maui County and the Big Island by midweek. Additional surges of deep moisture are possible Friday into the weekend, which would prolong the flooding threat across the state. While it is still too early to determine specific rainfall totals, confidence is increasing that considerable flooding impacts are possible. Now would be a good time to clear storm drains, culverts, and other drainage areas of debris to help reduce localized flooding. Stay up to date with the latest forecast information through weather.gov/hawaii, local media, social media, or NOAA Weather Radio broadcasts.

Special Weather Statement issued March 9 at 4:02PM HST by NWS Honolulu HI

Effective: Mon March 9, 2026, 4:02 PM
Expires: Tue March 10, 2026, 5:15 AM

A powerful kona storm will begin impacting the western end of the state as early as Tuesday, then spread across the remainder of the smaller islands by midweek and the Big Island towards the end of the week. While flash flooding remains a major concern (see the Flood Watch for additional details), confidence is increasing that strong to severe thunderstorms may develop Wednesday into the weekend. Damaging winds will likely be the primary hazard with these storms, though large hail cannot be ruled out. In addition to the heavy rainfall and severe thunderstorm threat, strong and potentially damaging kona winds are possible late in the week and into the weekend.

Hydrologic Outlook issued March 9 at 3:10PM HST by NWS Honolulu HI

Effective: Mon March 9, 2026, 3:10 PM
Expires: Tue March 10, 2026, 5:15 AM

ESFHFO Latest forecast models continue to indicate that considerable flash flooding is possible this week beginning as early as Tuesday as a powerful kona storm develops northwest of the state and draws deep tropical moisture across the islands. Higher confidence in the heavy rainfall and flooding threat has led to the issuance of a Flood Watch for Kauai County, Oahu, and Maui County. This will be the final Hydrologic Outlook issued for this event. Further hydrologic threat information will be covered by flash flood watches, flash flood warnings and flood advisories as conditions warrant. Keep up to date with the latest forecast information through the Internet (weather.gov/hawaii), local media, social media, or NOAA Weather Radio broadcasts.

Flood Watch issued March 9 at 2:57PM HST until March 14 at 6:00PM HST by NWS Honolulu HI

Effective: Mon March 9, 2026, 2:57 PM
Expires: Tue March 10, 2026, 5:00 AM

...FLOOD WATCH IN EFFECT FOR NIIHAU AND KAUAI BEGINNING TUESDAY... ...FLOOD WATCH IN EFFECT FOR OAHU BEGINNING TUESDAY EVENING... ...FLOOD WATCH IN EFFECT FOR MAUI COUNTY BEGINNING WEDNESDAY... * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Maui, Molokai, Lanai, and Kahoolawe. * WHEN...From Wednesday morning through Saturday afternoon. * IMPACTS...Significant flooding may occur due to the overflow of streams and drainages. Roads in several areas may be closed, along with property damage in urban or low lying spots due to runoff. Landslides may also occur in areas with steep terrain. * ADDITIONAL DETAILS... - Considerable flash flooding is possible this week beginning early Tuesday as a powerful kona low develops northwest of the state and draws deep tropical moisture across the islands. Persistent bands of heavy rain and thunderstorms may produce intense rainfall rates, leading to rapid rises in streams and flooding of roads and low-lying areas.

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