
© GIBSON RIDGE/NOAAA radar image showing a tornado-warned storm moving into Kauai, HI, early on Tuesday, March 17, 2020.
The National Weather Service issued two rare tornado warnings for western Hawaii on Tuesday morning, the first tornado warnings for the state in over a decade. The storms resulted in no reports of damage, but the threat for stormy weather and flash flooding will continue across the Hawaiian Islands for the next couple of days.
The
first tornado warning went up for the island of Niihau just before 1:30 AM Tuesday local time, followed by
a second for Kauai around 6:00 AM local time.
The most serious of the two thunderstorms affected southern Kauai. The
National Weather Service in Honolulu issued a severe thunderstorm warning for southwestern Kauai before the storm came ashore, warning residents that damaging wind gusts up to 60 MPH were possible. The storm began to take on some characteristics of a supercell, complete with a hook-like appendage that began rotating as it approached shore. A nearby radar site showed strong low-level rotation that prompted the tornado warning. The rotation quickly dissipated once the storm came ashore near Kaumakani just after 6:00 AM. There have been no reports of damage so far.
Comment: Of note, the quake mentioned above was the strongest since 2013, and this also follows a recent warning of deadly gasses detected at Iceland's Eldvörp caves - one could say that, taken together, this kind of contradicts the statement that there are no "imminent signs of unrest".
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