Hilo

Rest Of Today: Windy. Showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Highs around 80 near the shore to around 66 at 4000 feet. South winds 10 to 35 mph with gusts to 55 mph. Chance of rain near 100 percent.

Tonight: Windy. Cloudy with showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Lows 64 to 74 near the shore to 57 to 62 at 4000 feet. Southwest winds 10 to 35 mph with gusts to 60 mph. Chance of rain 90 percent.

Sunday: Windy. Mostly cloudy with numerous showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Highs 80 to 85 near the shore to 65 to 70 at 4000 feet. South winds up to 30 mph. Chance of rain 70 percent.

Kona

Rest Of Today: Windy. Showers and isolated thunderstorms. Locally heavy rainfall possible. Highs 79 to 85 near the shore to around 64 near 5000 feet. South winds 15 to 35 mph with gusts to 60 mph. Chance of rain near 100 percent.

Tonight: Windy. Showers and isolated thunderstorms. Locally heavy rainfall possible. Lows 69 to 75 near the shore to 50 to 55 near 5000 feet. South winds 10 to 30 mph. Chance of rain near 100 percent.

Sunday: Breezy. Showers and isolated thunderstorms. Locally heavy rainfall possible. Highs 80 to 86 near the shore to around 64 near 5000 feet. South winds 10 to 25 mph decreasing to up to 20 mph in the afternoon. Gusts up to 45 mph. Chance of rain near 100 percent.

Waimea

Rest Of Today: Windy. Showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Highs around 79 near the shore to 68 to 75 near 3000 feet. Southwest winds 10 to 35 mph with gusts to 60 mph. Chance of rain near 100 percent.

Tonight: Windy. Cloudy with showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Lows 65 to 73 near the shore to 57 to 65 near 3000 feet. Southwest winds 10 to 30 mph with gusts to 55 mph. Chance of rain 90 percent.

Sunday: Windy. Mostly cloudy with showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Highs around 80 near the shore to 69 to 76 near 3000 feet. Southwest winds up to 35 mph with gusts to 65 mph. Chance of rain 90 percent.

Kohala

Rest Of Today: Windy. Showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Highs around 79 near the shore to 68 to 75 near 3000 feet. Southwest winds 10 to 35 mph with gusts to 60 mph. Chance of rain near 100 percent.

Tonight: Windy. Cloudy with showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Lows 65 to 73 near the shore to 57 to 65 near 3000 feet. Southwest winds 10 to 30 mph with gusts to 55 mph. Chance of rain 90 percent.

Sunday: Windy. Mostly cloudy with showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Highs around 80 near the shore to 69 to 76 near 3000 feet. Southwest winds up to 35 mph with gusts to 65 mph. Chance of rain 90 percent.

South Big Island

Rest Of Today: Breezy. Showers and isolated thunderstorms. Locally heavy rainfall possible. Highs around 81 near the shore to around 63 near 5000 feet. South winds 15 to 25 mph. Chance of rain near 100 percent.

Tonight: Breezy. Showers and isolated thunderstorms. Locally heavy rainfall possible. Lows around 75 near the shore to around 56 near 5000 feet. Southwest winds 10 to 25 mph. Chance of rain near 100 percent.

Sunday: Showers and isolated thunderstorms. Locally heavy rainfall possible. Highs around 82 near the shore to around 64 near 5000 feet. West winds up to 15 mph. Chance of rain near 100 percent.

Puna

Rest Of Today: Windy. Showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Highs around 80 near the shore to around 66 at 4000 feet. South winds 10 to 35 mph with gusts to 55 mph. Chance of rain near 100 percent.

Tonight: Windy. Cloudy with showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Lows 64 to 74 near the shore to 57 to 62 at 4000 feet. Southwest winds 10 to 35 mph with gusts to 60 mph. Chance of rain 90 percent.

Sunday: Windy. Mostly cloudy with numerous showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Highs 80 to 85 near the shore to 65 to 70 at 4000 feet. South winds up to 30 mph. Chance of rain 70 percent.

Waikoloa

Rest Of Today: Windy. Showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Highs around 84 near the shore to 63 to 71 above 4000 feet. South winds 20 to 35 mph increasing to 30 to 35 mph in the afternoon. Gusts up to 60 mph. Chance of rain near 100 percent.

Tonight: Windy. Cloudy with showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Lows around 74 near the shore to 54 to 60 above 4000 feet. South winds 20 to 30 mph with gusts to 50 mph. Chance of rain 90 percent.

Sunday: Windy. Showers and isolated thunderstorms. Haze. Locally heavy rainfall possible. Highs around 84 near the shore to 64 to 71 above 4000 feet. Southwest winds up to 35 mph becoming 10 to 30 mph in the afternoon. Gusts up to 60 mph. Chance of rain near 100 percent.

Detailed Forecast

Synopsis

A powerful kona storm will remain anchored northwest of the state producing periods of hazardous weather impacts across the Hawaiian Islands through the weekend. Expect a combination of threats ranging from significant flash flooding, damaging winds, strong to severe thunderstorms, and snow and ice over the highest Big Island summits. Strong southwesterly winds will hold today produce damaging wind gusts. The highest threats for damaging winds remain along north and east slopes of island mountains. Unsettled wet weather continues with decreasing southwesterly wind trends from Sunday into next week. This kona storm begins to lift northeastward from Sunday to Monday, heavy rain and strong winds will decrease as severe weather conditions start to ease across the Hawaii region. However, periods of unsettled wet weather in a light and variable low level wind pattern will continue across the state into next weekend.

Short term update

Issued at 924 AM HST Sat Mar 14 2026
Based on latest near term guidance the High Wind Warning for Maui County and Big Island has been extended through Sunday afternoon. The Gale Warning around Maui County and Big island waters has also been extended through Sunday afternoon. Precipitation totals were refreshed to included trends of a narrow rainband setting up between Oahu and Maui County this afternoon and intensifying tonight. This rainband could bring higher rainfall totals primarily for Maui County as it shifts eastward and stalls Sunday before trending down Sunday night.

Prev discussion

Issued at 419 AM HST Sat Mar 14 2026
Looking into this mornings satellite water vapor imagery, we continue to see a strong kona storm locked into position northwest of the Hawaiian Islands. Several higher topped cloud bands continue to develop and train over the islands in Maui County and over the Big Island. This satellite picture matches well with latest local radar imagery, indicating the highest rainfall amounts are currently falling across the eastern half of the state at a rate of roughly 1 to 2 inches per hour.
The latest short term forecast guidance shows two negatively tilted upper troughs passing over the islands today. Upper level divergence ahead of each of these troughs will trigger pulses of heavier smaller scale (mesoscale) shower bands potentially training over the islands. These pulses of shower activity will affect each island differently, heavy rainfall will pulse down with decreasing showers after the upper trough passes, and then pulse back up as the next trough moves into the region. The biggest challenge today will be forecasting the intensity and track of these smaller scale heavy rain shower bands, which can significantly alter observed precipitation amounts over any location on an hour by hour basis. Overall we remain in a very unstable weather pattern and additional heavy rain bands will develop over the islands today.
The Flood Watch remains in effect to cover the threats from additional heavy shower bands with the ground already saturated from the large amount of rain that has recently fallen across the state. Strong southwesterly wind gusts will also continue today favoring north and east slopes of island terrain and a High Wind Warning remains in effect. A Winter Storm Warning for snow also continues for the Big Island summits above 12,000 feet elevation.
From Sunday to Monday, the kona storm begins to rapidly weaken and lift northeastward. Strong winds across the state will significantly decrease in the lower elevation areas, and heavy shower activity will diminish in coverage across the region. However, periods of unsettled wet weather in a light and variable low level wind pattern will continue through much of next week.
The extended forecast for next week has evolved over the past 24 hours. A high pressure system is no longer building in north of the region, rather an upper level troughing pattern will continue to dominate Hawaiian Island weather conditions through the end of the week. This means variable light winds each day with periods of showers and possible thunderstorms lasting into next weekend.

Aviation

Issued at 419 AM HST Sat Mar 14 2026
Widespread showers, some heavy, along with isolated thunderstorms, will continue today. The majority of the showers are forecast to focus on the eastern islands. Expect widespread MVFR to IFR with local LIFR. Winds will remain strong and primarily out of the south to southwest. Widespread gusts up to and over 35 kt are forecast.
AIRMET Sierra remains in effect all islands due to mountain obscuration, and Oahu, Molokai, Maui, and Lanai for IFR. This is expected to remain in effect through tonight.
AIRMET Tango remains in effect for moderate upper-level turbulence between 130 and FL380. and for low-level turbulence due to strong surface winds. Both of these are expected to remain in effect through Saturday.
AIRMET Zulu remains in effect, as high clouds from these showers present icing concerns between FL120 and FL260. This is also expected to continue through Saturday.

Marine

Issued at 924 AM HST Sat Mar 14 2026
Gale-force winds continue across the coastal waters from Oahu to the Big Island as a strong kona storm continues impacting the area. Elsewhere (for the waters near Kauai), a Small Craft Advisory remains in effect for both winds and elevated seas greater than 10 feet. Gusty winds, steep and fast seas, and low visibility in heavy showers will continue across all coastal waters through the weekend. Latest high-res guidance shows that strong gale-force winds could continue into the day on Sunday for the waters surrounding Maui County and the Big Island. Based on this, the Gale Warning has been extended in time with this morning's updates. As the winds diminish late this weekend, the gale warnings will be expired and replaced with Small Craft Advisories. Seas will gradually fall as the system moves off to the north.
These gale-force southerly winds will create large and rough surf along south facing shores through at least this afternoon, and a High Surf Advisory remains in effect for south facing shores until 6 PM. A few adjustments have been made to the south shore surf forecast for today with this morning's updates. The winds by early next week will shift westerly and diminish as the storm gains increasing distance far to the north of the islands.
A small, short to medium period west to west-northwest swell will bring small to moderate surf to north and west facing shores through the weekend. An additional bump in north shore surf is expected on Tuesday. Additionally, a small, medium period north swell will peak this weekend before gradually declining. Another small north swell could arrive late this week.

HFO Watches/Warnings/Advisories

Flood Watch until 6 PM HST this evening for Kauai East, Kauai Mountains, Kauai North, Kauai South, Kauai Southwest, Niihau.
High Wind Warning until 6 AM HST Sunday for Central Oahu, East Honolulu, Ewa Plain, Honolulu Metro, Kauai East, Kauai Mountains, Kauai North, Kauai South, Kauai Southwest, Koolau Leeward, Koolau Windward, Niihau, Oahu North Shore, Olomana, Waianae Coast, Waianae Mountains.
High Surf Advisory until 6 PM HST this evening for Big Island South, Big Island Southeast, East Honolulu, Ewa Plain, Honolulu Metro, Kahoolawe, Kauai South, Kauai Southwest, Kohala, Kona, Lanai Leeward, Lanai South, Maui Central Valley South, Maui Leeward West, Molokai Leeward South, Molokai West, Niihau, South Haleakala, South Maui/Upcountry, Waianae Coast.
Flood Watch through late tonight for Central Oahu, East Honolulu, Ewa Plain, Honolulu Metro, Koolau Leeward, Koolau Windward, Oahu North Shore, Olomana, Waianae Coast, Waianae Mountains.
Flood Watch through late Sunday night for Big Island East, Big Island Interior, Big Island North, Big Island South, Big Island Southeast, Haleakala Summit, Kahoolawe, Kipahulu, Kohala, Kona, Lanai Leeward, Lanai Mauka, Lanai South, Lanai Windward, Maui Central Valley North, Maui Central Valley South, Maui Leeward West, Maui Windward West, Molokai Leeward South, Molokai North, Molokai Southeast, Molokai West, Molokai Windward, South Haleakala, South Maui/Upcountry, Windward Haleakala.
High Wind Warning until 6 PM HST Sunday for Big Island East, Big Island Interior, Big Island North, Big Island South, Big Island Southeast, Big Island Summits, Haleakala Summit, Kahoolawe, Kipahulu, Kohala, Kona, Lanai Leeward, Lanai Mauka, Lanai South, Lanai Windward, Maui Central Valley North, Maui Central Valley South, Maui Leeward West, Maui Windward West, Molokai Leeward South, Molokai North, Molokai Southeast, Molokai West, Molokai Windward, South Haleakala, South Maui/Upcountry, Windward Haleakala.
Winter Storm Warning until 6 AM HST Monday for Big Island Summits.
Small Craft Advisory until 6 PM HST Sunday for Kauai Channel, Kauai Leeward Waters, Kauai Northwest Waters, Kauai Windward Waters, Oahu Leeward Waters.
Gale Warning until 6 AM HST Sunday for Oahu Windward Waters.
Small Craft Advisory from 6 AM to 6 PM HST Sunday for Oahu Windward Waters.
Gale Warning until 6 PM HST Sunday for Alenuihaha Channel, Big Island Leeward Waters, Big Island Southeast Waters, Big Island Windward Waters, Kaiwi Channel, Maalaea Bay, Maui County Leeward Waters, Maui County Windward Waters, Pailolo Channel.

Data Courtesy of NOAA.gov