Gusty winds felled several trees along the Old Saddle Road on the Big Island of Hawaii, between the Daniel K. Inouye Highway and the Lower Waikii Ranch Gate.
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The episode as NWS HFO wrote it up.
Gusty winds felled several trees along the Old Saddle Road on the Big Island of Hawaii, between the Daniel K. Inouye Highway and the Lower Waikii Ranch Gate. The trees on the roadway forced its closure for a time on the 13th. No serious injuries 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 Feb 13, 3:31 AM HST, 2 hours 44 minutes earlier.
Area Forecast Discussion National Weather Service Honolulu HI 331 AM HST Thu Feb 13 2020 .SYNOPSIS... A departing trough of low pressure and a building high northeast of the state, will bring a gradual return of trade wind weather to the islands over the next couple days. Showers will favor windward locales with a few showers reaching leeward areas at times. Drier conditions and moderate to breezy trade winds are expected by the weekend, with these conditions continuing through the middle of next week. Showers will continue to favor windward and mauka areas with a stray shower spilling leeward from time to time. && .DISCUSSION... Currently at the surface, a weakening trough of low pressure is located a few hundred miles west of Kauai, while a 1033 mb high is centered around 1500 miles north-northeast of the island chain. Meanwhile, a new cold front is located around 900 miles west-northwest of Kauai. Aloft, an upper level low is evident in water vapor imagery several hundred miles southwest of the Big Island. Light to moderate trade winds prevail over the western islands early this morning, while moderate to breezy east- southeasterly winds prevail over the eastern islands. Infrared satellite imagery shows clear to partly cloudy skies in most areas from Kauai to Maui, with mostly cloudy conditions over the Big Island and southeast sections of Maui. Radar imagery shows scattered showers moving into windward areas, with mostly dry conditions in leeward locales. Main short term focus revolves around rain chances and the gradually strengthening trades. The surface trough will continue to shift westward over the next couple days, as a weakening cold front approaches from the west. These two features will then merge several hundred miles northwest of the state by Friday evening. Meanwhile a broad surface high will hold in place far to the northeast of the island chain. The gradient will remain a bit weaker over the western islands through the remainder of the work week, with moderate trade winds prevailing, while breezy trade winds return to the eastern end of the state beginning today. As the front fizzles out northwest of the islands Friday night and Saturday, breezy trade winds will begin to fill back in over the western end of the state. Only minor fluctuations in trade wind strength are then expected through the remainder of the weekend and into the middle of next week. Winds at the higher elevations of the Big Island and Maui will be quite strong through the morning hours and possibly into the early afternoon. As a result, a Wind Advisory is in effect through 6 PM this evening for the Haleakala Summit, the Big Island Summits, as well as the Big Island interior. Scattered windward showers are expected to continue today, with a shower or two possibly reaching leeward areas. Model solutions then show a band of deeper moisture moving over the islands tonight and Friday, and this will likely increase windward shower activity and result in more leeward spillover. The airmass will then dry out quite a bit Friday night through Saturday night as mid and upper level ridging builds over the state and precipitable water values plummet. Persistent trade winds should bring a gradual increase in trade showers by Sunday, with fairly typical trade wind weather prevailing through the middle of next week. && .AVIATION... A trough of low pressure west of the Hawaiian Islands will keep unsettled weather in the short range forecast. For today expect brief periods of showers for most islands favoring the morning hours with higher chances for showers along the east and southeastern sections of Maui and the Big Island. Large scale winds will shift from southeasterly to a more easterly direction today through Friday as the trough moves away from the island chain and high pressure builds back in over the state. More typical windward showers will return across the eastern islands today and over all islands by Friday. MVFR conditions are possible for eastern slopes of most islands and likely for the east and southeastern sections of the Big Island later this afternoon and evening due to enhanced shower activity. AIRMET Tango in effect for tempo moderate turbulence from Molokai eastward to the Big Island below 100 west through north of mountains. SIGMET TANGO will continue for upper level moderate to severe turbulence across all islands. These turbulent conditions will likely continue through the morning hours. AIRMET Sierra for tempo mountain obscuration may be needed for the Big Island and Maui later this afternoon. && .MARINE... A weakening surface trough west of the state will continue west and southwest away from the area through the weekend as high pressure builds far northeast of the island chain. This will lead to strengthening trade winds, with strong to near-gale force winds possible this weekend into early next week. With the trades and the concomitant increase in wind waves expected today, the Small Craft Advisory (SCA) was expanded to include most coastal zones, except for a few leeward areas. Stronger trades, along with a new moderate to large northwest swell, will likely bring SCA conditions to most, if not all, marine zones no later than this weekend. The current mid-period north swell and long-period northwest swell will continue to steadily decline, with small northwest swells today and Friday. A larger northwest swell is forecast over the weekend, bringing near-advisory level surf to some north and west facing shores as it peaks Sunday. This swell will gradually decline through the first half of next week. Surf along exposed east facing shores will receive a notable boost into the weekend as trade winds return over and upstream of the islands. Latest guidance shows advisory level surf through tonight along east facing shores, so a High Surf Advisory remains in effect for most east facing shores. East shore surf will likely drop just below the advisory level by Friday, but remain elevated through the weekend. Surf along south facing shores will remain small with mainly background swells, aside from a couple moderate- size south swells possible this weekend and early next week. && .HFO WATCHES/WARNINGS/ADVISORIES... High Surf Advisory until 6 AM HST Friday for Kauai Windward-Oahu Koolau-Olomana-Molokai Windward-Maui Windward West-Windward Haleakala-South Big Island-Big Island North and East. Wind Advisory until 6 PM HST this evening for Haleakala Summit- Big Island Interior-Big Island Summits. Small Craft Advisory until 6 AM HST Friday for Kauai Northwest Waters-Kauai Windward Waters-Kauai Channel-Oahu Windward Waters- Kaiwi Channel-Maui County Windward Waters-Pailolo Channel- Alenuihaha Channel-Big Island Windward Waters-Big Island Leeward Waters-Big Island Southeast Waters. && DISCUSSION...Jelsema AVIATION...Bohlin MARINE...Kinel
The national radar mosaic for the moment the first event began.
1 strong wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Hawaii in 2020Every state in 2020This day in weather historyWarnings in Hawaii, February 2020
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: 871743.