High winds from the southwest occurred over the summits of Mauna Kea and Mauna Loa on the Big Island of Hawaii. No serious injuries or property damage were reported.
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The episode as NWS HFO wrote it up.
High winds from the southwest occurred over the summits of Mauna Kea and Mauna Loa on the Big Island of Hawaii. No serious injuries or property damage were reported.
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 Mar 7, 10:15 AM HST, 14 minutes earlier.
Area Forecast Discussion National Weather Service Honolulu HI 1015 AM HST Wed Mar 7 2018 .SYNOPSIS... Breezy northeast trade winds will keep a cool air mass over the islands through the weekend. The trade winds will deliver periods of clouds and showers that will favor windward areas the next couple of days, with fewer showers expected over the weekend. A trend toward wet weather is expected early next week as trade winds continue. && .DISCUSSION... Generally speaking, strong high pressure will prevail to the distant NW of the islands through the weekend, while low pressure of varying strengths persists to the NE. This setup will keep a cool NE trade wind flow over the islands, with periods of clouds and showers that will favor windward slopes and coasts through Friday. Fewer trade showers are expected this weekend when an upper trough extending over the islands from the NE finally shifts E of the area. Global models still aggressively moistening the island atmosphere early next week as a trough aloft develops W of the area and moves over the islands. Latest satellite imagery shows showery and stable low clouds moving over the islands in a moderate to locally breezy NE trade wind flow, with a minima in showers near Oahu this morning. Dew points in the 50s are making it feel a little chilly, and despite relatively low PWAT (0.9 inches at PHLI and 1.3 at PHTO), and a subsidence inversion between 6000 and 8000 feet, the incoming low clouds have been able to produce some (limited) precipitation along windward slopes and coasts. Water vapor imagery shows a ENE-WSW oriented trough aloft that is just N of the islands, with this feature supporting the aforementioned surface low to the NE of the islands. The gradient associated with the trough aloft is bringing strong winds to the summits of the Big Island, where a Wind Advisory remains in effect. Latest model guidance offers little change to the forecast philosophy through early next week, with shallow cloud and shower bands rotating around the distant low and moving over the islands from the N over the next couple of days. One such band has brought showers to Kauai so far today while moisture associated with a dissipated front lingers near windward Big Island. The showers near Kauai will be sliding S through tonight according to well- initialized GFS guidance, with a similar diffuse band moving N-S across the chain on Thursday, and potentially a weaker band on Friday. It appears the upper trough axis extending over the area from the NE will provide the subtle instability to support these cloud bands that will primarily affect windward areas, leaving leeward areas mostly dry. As the trough exits to the E this weekend, a mostly dry trade wind weather pattern is expected. Surface high pressure to the NW will move SE late in the weekend and early next week, and trade winds will veer to the E while the air mass moistens. GFS and ECMWF both indicate a significant increase in moisture late Monday through Wednesday as a trough aloft sharpens to the W of the islands. Guidance continues to indicate a nearly saturated air mass over the area that could potentially fuel widespread rainfall, but details remain uncertain. && .AVIATION... High pressure north of the area will keep moderate to locally breezy northeast trade winds in place through the period. AIRMET TANGO for low level turbulence is posted over and immediately south through west of the mountains. Clouds and showers will continue to favor the windward and mountain areas. All mountain obscurations AIRMETs have been cancelled this morning, as most CIG and VIS remain VFR. Periods of MVFR conditions are possible in any passing showers, but are expected to remain short-lived today. Visible satellite imagery shows an area of more showery clouds north of Kauai this morning. The trade winds will help push this area into the islands, starting with Kauai this afternoon and the other smaller islands tonight. This will increase clouds and showers along windward areas, as well as the chance for more widespread MVFR conditions. && .MARINE... A Small Craft Advisory (SCA) remains posted for all coastal waters today for a combination of winds and seas. Winds and seas are trending downward, and could drop below advisory levels in many locations later today. However winds in the Alenuihaha Channel and around South Point could linger at SCA levels into tonight. Thus the SCA for those zones has been extended through tonight, while the rest drop out. The current north-northeast swell is on the decline, but another bump is expected to arrive tomorrow afternoon, courtesy of a complex low far northeast of the islands that will linger through the end of the week. This swell will bring combined seas back in excess of 10 feet to primarily the zones around Kauai and Oahu exposed to the swell. While winds will be trending down today, expect an increase in winds again Thursday night as a high pressure system far north of the area builds in. This will likely bring SCA level winds to most waters by the end of the week and into the weekend. In addition to the current north-northeast swell, a moderate long- period west-northwest swell continues. This combination is helping to bring low end advisory level surf to north and east facing shores of the islands exposed to these swells. While surf could briefly drop below advisory levels tonight or early Thursday, the next north- northeast swell coming in Thursday afternoon will once again bring surf to advisory levels. A new moderate to large north swell could impact the north facing shores late in the weekend and into early next week, bringing surf to near advisory levels. The north-northeast swells could also produce moderate to strong surges in harbors exposed to the north, primarily in Kahului and Hilo harbors. See the Marine Weather Statement (MWSHFO) for more details. See the latest Oahu Surf Discussion (SRDHFO) for additional details on surf and swell. && .HFO WATCHES/WARNINGS/ADVISORIES... High Surf Advisory until 6 PM HST Thursday for North and East facing shores of Kauai Oahu Molokai Maui and the Big Island and for North facing shores of Niihau. Wind Advisory until 6 AM HST Thursday for Big Island Summits. Small Craft Advisory until 6 AM HST Thursday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters. Small Craft Advisory until 6 PM HST this evening for Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters- Kauai Channel-Oahu Windward Waters-Oahu Leeward Waters-Kaiwi Channel-Maui County Windward Waters-Maui County Leeward Waters- Maalaea Bay-Pailolo Channel-Big Island Windward Waters. && DISCUSSION...Birchard AVIATION...EATON MARINE...TS
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Hawaii in 2018Every state in 2018This day in weather historyWarnings in Hawaii, March 2018
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: 739506.