Hawaii
First Alert Forecast: Time to prepare is now, severe storm approaching
HONOLULU (HawaiiNewsNow) – If you liked the weather yesterday, you can pretty much copy and paste that onto today’s forecast. It’ll be another nice day with a mix of clouds and sunshine. However, this morning, unstable clouds are moving into the windward slopes of the islands, bringing showers to mountain areas.
That will change as a really strong low-pressure system moves toward the islands and strengthens as the week goes on, with tomorrow (Monday) being a transition day. This is a serious storm system for Hawaii that will start impacting us on Tuesday and last through the weekend, bringing heavy flooding, strong and gusty winds, thunderstorms that could become severe, and five days of winter weather for the summits and higher slopes of Mauna Kea and Mauna Loa.
A great tool to have is our First Alert Weather App and interactive radar.
Rain/Thunderstorms
Even though the storm center is hundreds of miles away, its effects are already being felt. Thunderstorm bands are forming 500 to 700 miles from the storm’s center, and high-level clouds with embedded thunderstorms are already showing up just 150 to 250 miles west of Kauai. A super-strong jet stream (a fast-moving air current) is pushing these storm bands toward Hawaii. A Flood Watch may be issued this afternoon.
Ensemble models are in good agreement on the track and intensity of this storm. The combination of tropical moisture moving north and the way the upper atmosphere is set up will create deep, organized thunderstorms that will bring heavy showers throughout the islands. The first few days of rain will completely soak the ground. Once the soil is saturated, even lighter rain will quickly turn into runoff and cause flooding. That means the flooding threat actually gets worse later in the week, not better. Heavy rain starting Tuesday will bring 4 to 12 inches of rainfall statewide over the next five days.
Wind
Starting Tuesday, winds will shift to blow from the south and southwest as the storm system approaches. These winds will get progressively stronger through the week. By Friday through Sunday, the winds will be dangerous — strong enough to knock down trees, especially on the northern and eastern slopes of the islands’ mountains. A High Wind Advisory or High Wind Warning is likely to be issued.
The heavy rain earlier in the week will soak the ground and weaken tree root systems. When the strong winds hit, these weakened trees will be more likely to fall. Falling trees and branches will likely knock down power lines, causing power outages across the state.
On top of the strong winds, severe thunderstorms will develop as tropical moisture and southerly winds collide. These storms could be dangerous, with:
- Damaging wind gusts
- Very heavy rainfall
- Dangerous lightning
A Severe Thunderstorm Watch may be issued at some point during this event.
High-elevation snow and ice, along with stronger winds, are also expected over the highest elevations of Mauna Kea and Mauna Loa on Hawaii Island. These conditions will likely limit road access to the observatories at summit level. Winter Storm Warnings are likely to be issued for those areas later this week.
Surf
Expect choppy conditions on east-facing shores today, then calmer surf for most of the week. North and west shores will see small, steady waves, while south-facing shores will turn rough and choppy starting Tuesday.
Get 10-minute weather updates, plus your 7-day forecast on Hawaii News Now Sunrise every weekday morning from 4:30 a.m. to 9 a.m. HST with Guy Hagi and team. Meteorologist Drew Davis will have your updates in the midday and early evenings and then Meteorologist Jennifer Robbins at 4 p.m. until 7 p.m; then at 9 p.m. and 10 p.m. on Hawaii News Now. Also on weekend mornings with Billy V & weekend nights with Ben Gutierrez.
Copyright 2026 Hawaii News Now. All rights reserved.
Hawaii
Mysterious green lights in Hawaii sky leave astronomers searching for answers
KAILUA-KONA, Hawaii (KHON) — A strange glow in the night sky over Hawaiʻi Island is raising eyebrows – and questions – after a Kona resident captured unusual green lights on camera over the weekend.
Jake Asuncion says he was filming sunset near Keahole Point when he unknowingly recorded the phenomenon. It wasn’t until he got home and reviewed the footage that he noticed a faint green glow appear in the sky.
“I got home, I was going to post it, and then towards the end of the video I saw the green come out—I said, what was that?” Asuncion said. He said he enhanced the color to show the movement.
Curious, he returned the following night—and saw it again.
“I wanted to go back the next night and see if I could capture the same thing—and it came out even more the second night,” he said.
He said the glow appeared roughly 15 to 20 minutes after sunset, looking northwest toward Maui. While faint to the naked eye, the green hue was more visible through his phone camera.
The sightings have caught the attention of local astronomers, including Nick Bradley with Stargazers of Hawaiʻi, who says the color resembles aurora, but likely isn’t.
“It looked very interesting. The green color looks like aurora, but honestly, we don’t really get that in Hawaiʻi,” Bradley explained.
Data from the weekend shows no significant geomagnetic storm activity that would produce aurora visible in the islands. The KP index—a measure used to track aurora strength—was only between 3 and 4. By comparison, a rare aurora visible in Hawaiʻi in 2024 required a KP index of 8.
Bradley says other common explanations don’t seem to match what was captured either.
“Satellites look like small pinpoint lights moving across the sky, we see them every night. This doesn’t look like that,” he said.
He also ruled out meteor showers, lasers, and the well-known “green flash” that sometimes occurs at sunset, noting the lights appeared well after the sun had already set and higher in the sky.
The Army said there were no lasers being used or any training in that area.
The Hawaii Department of Transportation said Kona airport used to have a laser bird hazing gun, but it was red and would not come close in scale to what is shown in the photos. Standard airport rotating beacons also would not have the scale as shown in the photos.
Keck Observatories suggest it could be STEVE or ‘strong thermal emissions velocity enhancement,’ which is similar to aurora but seen further south than aurora. But not as much is known about STEVE and it’s typically seen with aurora present.
Astronomers note that smartphone cameras can enhance colors in low-light conditions, meaning the green glow may appear brighter on video than in real life.
Still, the exact cause remains unknown — and experts are asking the public to keep an eye out and capture the moment if they can.
“I would love more eyes on it — more data, the better,” Bradley said.
As for Asuncion, he plans to keep watching the skies.
“I just appreciate the beauty of nature and whatever comes,” he said.
Hawaii
Hawaii County Surf Forecast for April 28, 2026 | Big Island Now
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Tuesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| East Facing | 3-5 | 3-5 | 2-4 | 2-4 |
| South Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| Weather | Mostly cloudy. Occasional showers. | |||||
|---|---|---|---|---|---|---|
| Low Temperature | In the upper 60s. | |||||
| Winds | Northeast winds 5 to 10 mph, becoming north after midnight. |
|||||
|
||||||
| Weather | Mostly cloudy. Numerous showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | Around 80. | |||||
| Winds | Northeast winds 5 to 10 mph. | |||||
|
||||||
| Sunrise | 5:53 AM HST. | |||||
| Sunset | 6:42 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Tonight | Tuesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| South Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| Weather | Mostly cloudy until 12 AM, then partly cloudy. Scattered showers. |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Low Temperature | Around 70. | ||||||||
| Winds | Northwest winds around 5 mph, becoming east in the evening, then becoming southeast after midnight. |
||||||||
|
|||||||||
| Weather | Mostly sunny. Scattered showers. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| High Temperature | In the lower 80s. | ||||||||
| Winds | Southwest winds around 5 mph. | ||||||||
|
|||||||||
| Sunrise | 5:57 AM HST. | ||||||||
| Sunset | 6:46 PM HST. | ||||||||
Surf along north and west facing shores will remain small through midweek. A small bump in surf is expected with the arrival of a northwest swell on Tuesday. An upward trend is expected during the second half of the week as another northwest swell arrives. This is likely to be followed by a larger northwest swell over the weekend, with surf heights nearing advisory level.
Surf along south-facing shores will remain small through much of the week, with mainly background south to southwest swell expected. Another south-southwest pulse may arrive by this weekend from recent activity within our swell window east of New Zealand, providing a small increase in surf. Surf along east-facing shores will remain relatively small and choppy through midweek, with a slight rise possible later in the week as trades strengthen.
NORTH EAST
am
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Semi choppy with ESE winds 5-10mph in the morning increasing to 10-15mph in the afternoon.
NORTH WEST
am
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Clean in the morning with ESE winds less than 5mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting W 5-10mph.
WEST
am
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Light sideshore texture in the morning with NNW winds 5-10mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting to the WNW.
SOUTH EAST
am
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Sideshore texture/chop with NE winds 10-15mph.
Data Courtesy of NOAA.gov and SwellInfo.com
Hawaii
Las Vegas community rallies for Hawaii storm victims
HENDERSON. Nev. – A fundraiser was held at Liberty High School on Saturday to support victims in Hawaii still struggling to get back on their feet after Kona Low storms in March battered parts of O’ahu.
Shai Walter, owner of 2 Scoops of Aloha and one of the fundraiser’s organizers, said several businesses across the valley donated food, drinks, plates, and more for the fundraiser.
“We know the situation that they’re in. We’re far away, but we want to make sure we help from the Ninth Island,” Walter said. “All these businesses came together to actually do a fundraiser for our people.”
2 Scoops of Aloha, Grindz 2 Da Max, Shaka on Point, Al Pono Café, Ono Manju, Fresh Off the Boat, Mongos Hood, Leilani’s Attic, Ninth Island, Le Umu, Da Hawaiian Snack Man, Hapahoales, Noms, Maui Goddess, Sweet Kings, and Str8 Twisted are some of the businesses, organizations, and friends of the fundraiser’s organizers that made some form of donation to the fundraiser.
Cathi Minami, founder of Ninth Island Aunties, helped organize Saturday’s fundraiser. She said she moved to Las Vegas in 2001, but like many Hawaiians, never lost touch with the community on the Islands.
“We’re just trying to show that you know they’re thought of. They’re not forgotten. Our hearts are still with them, and Hawaii will always be our home,” Minami said. “So we wanted to see what we can do.”
Minami said that although her family was not severely impacted by the March storms and flooding, the tight-knit inner circles she is a part of tie her to a lot of families who are struggling to get back on their feet from the storms.
“Over 70 families, two of which have lost their homes. So we’re just trying to show that they’re thought of. They’re not forgotten. Our hearts are still with them and Hawaii will always be our home,” Minami said.
Minami said funds raised from Saturday’s event will go towards Vibrant Hawaii, a non-profit that is currently working to help impacted families directly in Hawaii.
The 9th Island Cultural Club of Las Vegas is hosting a breakfast fundraiser for the victims on Sunday, April 26, at the North Rainbow Boulevard Applebee’s Location between 8 am and 10 am.
Another breakfast fundraiser is planned on May 2.
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