King Tide Elevated by Swell from Fernanda

King tide along Honoapiʻilani Highway. (6.21.17) PC: Asa Ellison

The final of three king-tide events of the summer is due to arrive this weekend, starting Friday, July 21, 2017.

This particular event is further elevated by an east swell that is building from Hurricane Fernanda.

The public can expect nuisance flooding in low-lying areas, erosion and high wave run-up. Impacts of the King tides may include flooding of beaches that are normally dry, salt water inundation of typically vulnerable low-lying roads, docks, boat ramps and other coastal infrastructure.

Fernanda Impacts: Increased Surf Along East Shores

Fernanda Advisory #031. 8 a.m. PDT (5 a.m. HST) Wed Jul 19, 2017. PC: NOAA/NWS/National Hurricane Center.

Authorities with the Maui Emergency Management Agency say waves generated by distant Hurricane Fernanda are expected to lead to increasing surf along east facing shores the next couple of days, and this may lead to greater wave run-up along exposed windward coastlines.

The potential for coastal flooding will diminish early next week as the peak daily tides diminish.

Fernanda is forecast to continue weakening over the next four days and is expected to become a tropical storm in less than 24 hours, a post-tropical low by Saturday, and a remnant low by Sunday.  The system was last located 1290 miles E of Hilo and 1360 miles ESE of Hana, Maui at 5 a.m. HST on Wednesday, July 19, 2017.

Forecasters with the National Hurricane Center say there is a possibility that Fernanda could interact with an upper-level trough north of the Hawaiian Islands in a way that could prolong its life as a tropical cyclone.

King Tide Predictions for Maui:

Maui Now Graphic. Background image: King Tide at Olowalu (5.26.17) PC: Asa Ellison

The following are the daily high tide times at select locations across Maui County, which will correspond to the maximum coastal impact. The predictions are forecasts, but actual high tides may be greater than what has been projected:

Hāna, Maui:

2017/07/19 Wed 1:16 PM 2.46 H
2017/07/20 Thu 1:59 PM 2.75 H
2017/07/21 Fri 2:40 PM 2.96 H
2017/07/22 Sat 3:19 PM 3.05 H
2017/07/23 Sun 3:57 PM 3.05 H
2017/07/24 Mon 4:34 PM 2.96 H
2017/07/25 Tue 5:09 PM 2.79 H
2017/07/26 Wed 5:42 PM 2.57 H

Kahului, Maui:

2017/07/19 Wed 12:36 PM 2.35 H
2017/07/20 Thu 1:19 PM 2.62 H
2017/07/21 Fri 2:00 PM 2.81 H
2017/07/22 Sat 2:39 PM 2.91 H
2017/07/23 Sun 3:17 PM 2.91 H
2017/07/24 Mon 3:54 PM 2.82 H
2017/07/25 Tue 4:29 PM 2.66 H
2017/07/26 Wed 5:02 PM 2.44 H
2017/07/27 Thu 5:33 PM 2.21 H

Mākena, Maui:

2017/07/19 Wed 1:57 PM 1.71 H
2017/07/20 Thu 2:40 PM 1.92 H
2017/07/21 Fri 3:21 PM 2.05 H
2017/07/22 Sat 4:00 PM 2.12 H
2017/07/23 Sun 4:38 PM 2.12 H
2017/07/24 Mon 5:15 PM 2.06 H
2017/07/25 Tue 5:50 PM 1.94 H
2017/07/26 Wed 6:23 PM 1.78 H

Kaunakakai, Molokaʻi

2017/07/19 Wed 1:36 PM 2.40 H
2017/07/20 Thu 2:23 PM 2.60 H
2017/07/21 Fri 3:07 PM 2.73 H
2017/07/22 Sat 3:49 PM 2.77 H
2017/07/23 Sun 4:29 PM 2.74 H
2017/07/24 Mon 5:08 PM 2.62 H
2017/07/25 Tue 5:45 PM 2.44 H
2017/07/26 Wed 6:21 PM 2.20 H

Kamalapau, Lānaʻi

2017/07/19 Wed 1:38 PM 2.44 H
2017/07/20 Thu 2:25 PM 2.63 H
2017/07/21 Fri 3:10 PM 2.75 H
2017/07/22 Sat 3:53 PM 2.78 H
2017/07/23 Sun 4:36 PM 2.73 H
2017/07/24 Mon 5:17 PM 2.61 H
2017/07/25 Tue 5:58 PM 2.43 H
2017/07/26 Wed 6:38 PM 2.20 H