Hawaii Is Getting a Blizzard (No, Seriously)

Hawaii Is Getting a Blizzard (No, Seriously)

If you’re in the Lower 48 looking for snow, may I suggest a trip to Hawaii? While a good chunk of the U.S. suffers under a snow-killing heat dome, Hawaii is in for a real-deal blizzard.

The National Weather Service issued rare blizzard warnings for the highlands of the Big Island on Friday as a powerful storm plows into the island chain. The forecast would be gnarly even if it weren’t in the tropics. But in the paradise that is the Big Island, it’s downright incredible.

“Travel could be very difficult to impossible,” the NWS Honolulu office warned. “Blowing snow will significantly reduce visibility at times, with periods of zero visibility.”

The high reaches of the Big Island could see “12 inches or more” according to the agency, and winds will gust more than 160 km/ph, stats that would put even the most fearsome nor’easter to shame.

Webcam imagery from the top of Mauna Loa, the highest point in Hawaii, shows snow already on the ground on. Volcanoes National Park closed summit access to Mauna Loa until at least Wednesday, indicating that the trails that head there are likely going to be impassable for quite some time. In short, it’s about to get real.

While the intensity of the forecast and snow warning language are striking, so, too, are the NWS alerts in place for lower elevations. The Big Island along with the neighbouring islands that make up Hawaii stretching to the northwest are under a slew of high wind, surf, gale, and flood warnings and watches. The NWS is calling for “significant flooding” and risks of landslides on every one of the Hawaiian islands, underscoring how widespread and vigorous the system is.

The storm system that will bring all this wild weather is what’s known as a “Kona low.” Here’s a nice breakdown from Capital Weather Gang of what makes a Kona low different from an average storm system in the area:

Prevailing winds over the islands are usually out of the east and northeast, but Kona lows draw in winds from the southwest, tapping abundant moisture.

This particular Kona low is predicted to be slow-moving, forming west of Kauai over the weekend and lingering into early next week.

Snowfall isn’t unheard of on the Big Island’s summits, which include Mauna Loa and Mauna Kea. Both volcanoes reach more than 3,960 metres above the Pacific beaches that ring the island. Having visited Mauna Loa Observatory, located on the volcano’s flanks, I can confirm that it gets nippy. It was puffy jacket weather even on the average November day I was there in 2019. Just this January, snow fell on Mauna Kea.

But the storm system that will roar over the island chain this weekend is on another level. Obviously heed all warnings and road closures if you live there. And if you’re not there, enjoy the scene from afar. Because right now, the mainland U.S. is in dire straits when it comes to snow. Just 6% of the Lower 48 has snow on the ground as of Friday. Mountain towns in Colorado are starting to freak out with a paltry snowpack to start ski season. Where precipitation has fallen, it’s failed to do so in frozen form; the Pacific Northwest has been hammered by a series of storms (ironically, those storms tapped moisture from as far away Hawaii), but they arrived with a blast of warm air. That means that instead of snow, high elevations saw rain — and lots of it. Given the amount of snow that’s about to fall in Hawaii, it sounds like the islands could have some to spare, though. Now if only we could figure out how to get it to places that actually need it…

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