Forecast for Big Island Windward and Southeast

Forecast for Big Island Leeward

Surf along north and west facing shores will remain small tonight before a small bump is possible on Wednesday. An upward trend is then expected during the second half of the week as another northwest swell arrives as early as Wednesday night. This swell originates from a storm-force low that tracked into the Bering Sea this past weekend, as confirmed by scatterometry. Therefore, this swell appears more likely to materialize. Looking further ahead, a storm-force low east of Japan will send a moderate, longer-period northwest swell toward the islands for Friday and Saturday, with surf heights potentially approaching advisory levels along exposed north and west facing shores.

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 Thursday and Friday 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

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.

Forecast for Big Island Windward and Southeast

Forecast for Big Island Leeward

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