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Hurricane/Tropical Storm Hilda - August 7, 2015+

Amateur radio operators throughout Hawaii prepare to respond to Hurricane/Tropical Storm Hilda that arrives in Hawaiian waters on Wednesday August 12, 2015. This page provides progress information on the event. It is updated infrequently, so check the latest advisories from the National Weather Services and Emergency Management agencies. Last update is Sun Aug 23, 3:00 am

Activities are chronicled here. It's not a question of "If", it's a question of "When".

Enjoy, and feel free to drop me an e-mail if you have any questions.


Early storm track forecasts had the track varying on the approach to the Hawaiian islands.

JTWC TS 10 2015 Forecast 01

JTWC TS 10 2015 Forecast 06

JTWC TS 10 2015 Forecast 10

JTWC TS 10 2015 Forecast 15

JTWC TS 10 2015 Forecast 21

JTWC TS 10 2015 Forecast 26

JTWC TS 10 2015 Forecast 29

JTWC TS 10 2015 Forecast 31

JTWC TS 10 2015 Forecast 33

Hurricane/Tropical Storm Hilda information

Information on Hurricane/Tropical Storm Hilda and personal preparations can be found at these links:

Amateur Radio

The amateur radio leadership of NWS SKYWARN and Hawaii (State) Emergency Management Agency RACES are coordinating a joint net on the state-wide VHF Repeater system for passing storm information to the National Weather Service Honolulu Forecast office at HIG Building, University of Hawaii at Manoa campus, with supplemental traffic for SCD and DEM. The repeaters of DEM RACES (Oahu County) and SCD were linked using ALL-STAR VOIP linking to create a eight node repeater cluster of both State-wide and around-the-island repeaters for Oahu for reporting and monitoring purposes.

The repeaters linked from State Civil Defense

  • 147.02+ PL 103.5, Mt Haleakala, Maui 9,769 ft, currently standalone
  • 147.04+ no PL, Mauna Loa, Big Island 8,200 ft, currently standalone
  • 147.04+ PL 103.5, Lihue, Kauai, currently standalone
  • 147.06+ PL 103.5, Diamond Head, Oahu
  • 444.325+ PL 103.5, Waimanalo, Oahu
  • 444.350+ PL 103.5, Diamond Head, Oahu

and Department of Emergency Management, Oahu County

  • 146.76- no PL, Mokuleia, Oahu
  • 146.98- PL 88.5, Frank Fasi Municipal Building, Oahu

Big island operations scheduled for:

  • 146.82-, BIWARN Mauna Loa
  • 146.76-, BIWARN Kulani Cone is currently stand-alone
  • 146.86- PL 100.0, Naalehu
  • 146.72-, HSVOAD Mauna Kea

HF operations were scheduled for:

  • 3888 kHz LSB, Hawaii County
  • 3993.5 kHz LSB, State Civil Defense RACES
  • 7080 kHz USB, SKYWARN (Monitor this frequency first)
  • 7088 kHz LSB, HI EMA/State Civil Defense RACES
  • 7095 kHz LSB, Hawaii County
  • 7178 kHz LSB, HI EMA/State Civil Defense RACES alternate
  • 7195 kHZ LSB, Hawaii County
  • TBD, American Red Cross
  • TBD, Healthcomm


NWS SKYWARN was scheduled to activate from 6:00 pm Thursday August 13 through 10:00 pm Friday August 14. Operations was from 6:00 pm Thursday August 13 through 1:00 am Friday August 14.

  • FLdigi mode MT63-1KL.
  • Use form Storm Report and ensure the detail portion is filled out.

Encourage all amateur radio operators, whether SKYWARN or not, to call in reports of significant weather giving the following information:

  • Callsign
  • Name
  • SKYWARN Number (if have one)
  • Location
  • Significant weather reports, specifically,
  • heavy rain at a rate of an inch per hour or more lasting more than 15 minutes;
  • any tornado, funnel cloud or waterspout,
  • high winds strong enough to cause property damage;
  • any reports of hail and size of the hail, for example, pea, quarter size;
  • any time of flooding that is threatening or causing damage, flooding over roads, storm surge over roads, etc.;
  • landslide, rock slides, mudslide blocking roads and damage to structures;
  • electrical outages;
  • any weather related death, injury, or significant damages.

Operators scheduled are:

Shift Operators
Thu Aug 13 5:30 pm - Thu 15:30 pm Jack (KH6DQ), Darrell (KH6XL), Ophemia (KH6OH), Clem (KH7HO), Mark (AH6PR) (7 p.m. to 10:30 p.m.) go to the EARC 7:30 p.m. net, 146.880 to check in for any weather reports.
Thu Aug 13 10:15 pm – Fri 3:15 am Clem (KH7HO), Ophemia (KH6OH), Mark (AH6PR) 10:15 p.m. to 12 midnight)
Fri Aug 14 3:00 am – 8:00 am Fred (KH7CR), Betty (WH6GR)
Fri Aug 14 7:45 am – Fri 12:45 pm OJack (KH6DQ), Tiff (AH6S), Jeff (AH6IX) (until 12 noon); Go on the Friendly Net on 7.188 at 9:00 a.m. to check for any weather reports.
Fri Aug 14 12:30 pm – Fri 5:30 am Clem (KH7HO), Carter (KH6FV); Go to the 4 p.m. HF Afternoon net on 7.088 LSB to check for any weather reports.
Fri Aug 14 5:15 pm – Fri 10:15 pm Randy (AH6Q), Keith (WH7GG) (arrives 6 p.m.), Mark (AH6PR) (6:45 p.m. to 10:00 p.m.); Go on the EARC 7:30 p.m. net, 146.880, to check in for any weather reports.

Hawaii State Emergency Management Agency

HI EMA RACES operations is currently not scheduled to activate .

Hawaii County

CERT operated on the Big Island. KHON2 reported according to Darryl Oliveira, Hawaii County Civil Defense administrator that about 40 amateur radio operators were providing field observations supplementing police and fire.

Maui County

Oahu County

DEM RACES operatons to start at TBD.

Information from City and County of Honolulu.

Kauai County


Healthcomm is TBD. Healthcomm to be operational post-landfall.


A reminder: Being prepared is a personal responsibility. Stock up ahead of time, and don't get caught in the mad rush to the store to buy stuff. The Star-Advertiser offers a list of items for preparedness and planning.

A reminder for the general population (and amateur radio operators alike) that the primary means of timely notification of an alert is via the NOAA National Weather Service Weather Alert radios.

The Star-Advertiser Reporting

August 5, 2015, updated August 12, 2015

KHON2 TV Reporting

August 12, 2015, updated August 14, 2015

These are links to articles from KHON2.

“We have about 40 amateur radio operations out there right now that are doing field observations, supplementing police and fire that are on the ground as well and reporting what they’re seeing as far as rain and other conditions,” said Darryl Oliveira, Hawaii County Civil Defense administrator.

"Hawaii Island continues to see rain from Hilda.

"On Friday afternoon, both leeward and windward areas saw sporadic heavy rain from South Kona to Honaunau and Pahala to Naalehu.

"Kona rains should subside Friday night, but the Hilo side can expect rains to continue into the evening.

"A flood advisory is in effect for parts of the island until 8:30 p.m. Friday, and a flash flood watch continues through late Friday night.

"Yesterday much of the rain was focused over the east and southeast coastlines as Hilda weakened to a remnant low.

"Areas such as Waiakea Uka saw over six inches of rain and Hilo had over three inches. Valerie Victorine shared video of a gushing Rainbow Falls.

"However, no major flooding problems have been reported and officials hope it stays that way.

"Three charter schools were closed Thursday as a precaution: Na Wai Ola, West Hawaii Explorations Academy, and Kau Learning Academy.

"The National Weather Service extended a flood advisory for most of Hawaii County until 6:30 p.m.

Find out more by contacting:  rhashiro(remove this part)@hawaiiantel.net
Copyright © 1997-2015 Ron Hashiro
August 7, 2015. Updated: August 23, 2015

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