High winds up to 88 mph were measured on the summit of Mauna Kea.
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The episode as NWS HFO wrote it up.
High winds up to 88 mph were measured on the summit of Mauna Kea.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Honolulu, HI wrote its last area forecast discussion before the first event at Dec 12, 3:59 PM HST, 1 hour 1 minute earlier.
Area Forecast Discussion National Weather Service Honolulu HI 359 PM HST Mon Dec 12 2016 .SYNOPSIS... A drier and stable air mass during the first half of the week will give way to some unsettled weather during the week's second half including the upcoming weekend. A gentle surface northeast breeze should be in place by the end of Tuesday then give way to an easterly wind flow Wednesday. Moderate strength southerly winds will spread quickly in by Thursday and persist into the weekend. && .DISCUSSION... An upper level short wave is located over Oahu this early Monday afternoon, and is making good progress eastward. This feature should clear out any lingering mid level moisture now over the Big Island. There is a slight chance of a thunderstorms for the Big Island early this evening but that is a long shot. During the overnight hours, we will be dealing with a surface boundary accompanied by some clouds and showers. This broken band of low clouds is currently over northern coastal waters of Kauai, making good head way southward. This band is slated to turn east as the night progresses, reaching Oahu towards daybreak Tuesday. The weak band is expected to reach Maui County early Tuesday afternoon. An eastward moving upper level ridge with a drier and stable air mass will result in a low level inversion based at 6 to 8k feet across the smaller islands by Tuesday afternoon. Not so sure how much showers will be left upon reaching Maui County, so a slight chance will suffice for now. It is not an impressive band now. The surface front is analyzed over the Big Island as of 3 pm HST. The progress eastward will be slow. So the clearing, at least on the east side of the island, will be slow. Any leftover low level moisture will likely linger until the early afternoon hours when the northerly wind arrives. Models tries to bring back some low level moisture on Wednesday but we will see. We still anticipate Wednesday to be a rather nice day with light to moderate trades, perhaps a few trade showers at best. Thereafter, the forecast gets challenging. It all depends where the upper and surface lows are located. The ECMWF and GFS are in fair agreement now but they may tend to deviate. So we will be playing this cautiously. Never-the-less, we are trending toward an inclement period. The current forecast calls for moderate southerly winds by Thursday morning with a surface boundary approaching Kauai. This boundary reaches Maui County in the evening hours of Thursday with moderately strong westerly winds behind it, and light to moderate southwesterlies ahead of it. The boundary washes out allowing southerlies to spread across the island chain. && .AVIATION... AIRMET SIERRA for mtn obscuration for the Bis Island is in effect but should be lowered by 6 pm HST. There is a very slight chance it will be extended beyond 6 pm. If this happen, it will be short lived, till about 8 pm HST. An upper level short wave is making good head eastward which is now located over Oahu. There is a thunderstorm in progress over Glenwood and Keaau but it is a long shot after 6. The slight chance of a thunderstorm for Maui has been dropped, and the scattered showers should be on the way out. A not so impressive looking surface boundary now approaching northern Kauai may warrant an AIRMET SIERRA should the clouds and showers pick up in the coming hours. The boundary is expected to reach Oahu towards daybreak Tuesday then Maui County Tuesday afternoon but at a weaker state. Otherwise, VFR condition rules for the overnight hours. No other AIRMETS are expected. && .MARINE... The currently mid size northwest swell is slowly fading. We expect the forerunners from a north-northeast swell to start arriving Tuesday with the potential for a high surf advisory for the east facing shores with a northern exposure by Wednesday. The peak of this swell will also coincide with the full moon high tide cycle. The highest tides will occur during the early morning hours with a predicted height of 2.6 feet Wednesday through Thursday mornings. Tide gauges around the state have been running higher than predicted tide levels, so these tides could be a bit higher than predicted levels. A new northwest swell is forecast to arrive Thursday night and build to near advisory levels Friday. The potential for a gale low north of the islands later this week may alter the swell and surf outlook. Should the southerly winds arise as forecast, the surf along south facing shores may have a slight rise with choppier waters. && .HFO WATCHES/WARNINGS/ADVISORIES... Wind Advisory until noon HST Tuesday for Big Island Summits. && Lau
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
CFHT anemometer on Mauna Kea measured sustained winds from 60 to 70 mph for the duration of the high wind event.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Hawaii in 2016Every state in 2016This day in weather historyWarnings in Hawaii, December 2016
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 665805.