Today’s Weather: Tuesday, July 11, 2017

The Summary: NWS says scattered showers. Mostly cloudy, with a low around 70. Northeast wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.  We say; Surf expected to be 2ft today.  The actual wind (at Kanaha) should be stronger, we think that it will be averaging 20+ mph, reaching the mid 20’s in the afternoon with stronger gusts. Winds today should be more side-shore and easterly than yesterday, afternoon could be cloudy and gusty.

Action Beach. Photo David Dorn

Weather Map: Map shows a large 1033 mb High in the northeastern Pacific, The center of which is directly North of us.  The orientation of the Isobars locally indicates that the wind will be a bit stronger, but a local kink in them, shows us that the wind might be more easterly and more side-shore than yesterday. “Hurricane Eugene” in the far eastern Pacific, has weakened into “Tropical Storm Eugene” (TS) with winds 55 kt to 65 knots.


Wind Forecast: Winds are forecast to be 14-16 mph again today from the NE.  Which is a bit more than yesterday’s forecast. Some Partially Cloudy Skies, some small visible Rain showers on the Radar, and the chance of precipitation in the afternoon. Surf is down slightly and expected to be about 2ft from the NE today.  Editor’s Note: The actual wind (at Kanaha) will likely be stronger at 20-25+.

Rain Radar: Radar currently shows some very small scattered showers coming in on from today’s Easterly trade wind flow.

Water Temperature: Today’s Water temperature in Kahului is one of the warmest temps so far this year at 80.4 °F degrees Fahrenheit.

Today’s Tides Kahului: For more information about Maui Tides go to our TIDES PAGE.

2017/07/11 Tue 03:00 AM 1.30 H
2017/07/11 Tue 09:12 AM -0.19 L
2017/07/11 Tue 4:31 PM 2.52 H
2017/07/11 Tue 11:11 PM 0.70 L
2017/07/12 Wed 03:40 AM 1.26 H
2017/07/12 Wed 09:44 AM -0.04 L
2017/07/12 Wed 5:02 PM 2.44 H
2017/07/12 Wed 11:49 PM 0.67 L

Moon Phase: Waning Gibbous, Illumination: 95%     The Moon today is in a Waning Gibbous Phase. This is the first phase after the Full Moon occurs. It lasts roughly 7 days with the Moon’s illumination growing smaller each day until the Moon becomes the Last Quarter Moon with an illumination of 50%.  [Source]

Sunrise and Sunset Kahului:

2017 Sunrise/Sunset Daylength Solar Noon
Jul Sunrise Sunset Length Difference Time Mil. mi
Jul 11 5:52 am 7:10 pm 13:18:40 −0:29 12:31 pm (88.9°) 94.494
Jul 12 5:52 am 7:10 pm 13:18:09 −0:31 12:31 pm (89.1°) 94.492


NWS Forecast Today:

Humidity 84%
Barometer 29.99 in (1016.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi

.TODAY…East winds 15 knots. Wind waves 4 feet. Scattered
.TONIGHT…East winds 15 knots. Wind waves 4 feet. Showers
.WEDNESDAY…East winds 15 knots. Wind waves 5 feet. Showers
likely in the morning, then scattered showers in the afternoon.

Wind Yesterday: The wind was side-onshore, but went super onshore and noticeably lighter from about 1 pm till 5 pm. The wind speed came up at 10:00 averaged in the mid 20’s, gusting high 20’s, until 1 when the speed dropped by an average of 5 mph, there were a few stronger gusts around 6pm hitting just over 30 mph.


Hurricane Season:  Hurricanes are most likely to occur July through December in Hawaii. Hurricanes bring severe bad weather, flooding rain and potentially devastatingly strong winds. The passing of a Hurricane may last days or up to a week or more. The Hurricanes usually develop far away in the eastern Pacific and we generally get several days or more warning of their approach. So there is usually time to make preparations and even evacuate if necessary. Many Hurricanes come close to Hawaii but are just too far away to have a severe effect, This near-miss scenario, and repeated canceled warnings, can give some people a false sense of security. Until one does hit, and they may be unprepared. Here’s the link to the National Hurricane Center (NHC)


Today’s Kite Tips:  

Good Communication: There are enough barriers to good communication at the beach. Wind noise, distractions, and people moving in and out of the area. So it is important to be able to communicate to each other effectively.

The most basic form of Kiteboarder communication is the launch Signal, and so it is crazy that still many people don’t even know how to do this basic thing. As professional Instructors, we never launch a kite without a clear signal from the pilot. Why? The pilot needs to check their lines, and be sure of his gear before launching, they also need to wait for a break in the traffic or the right gust of wind. So if the launcher just launches whenever they want, it puts the pilot in danger. Also if the Pilot makes a habit of not giving a launch signal then it can lead to many bad launches because their intention was not clear. So definitely the “blank stare” does not qualify as a clear launch signal.  As an assistant: So if someone asks you to launch, you can tell them “I will not let go until I get a clear launch signal from you”. To remind them that they must give a proper launch signal. Who is responsible? If you give someone a launch without a clear signal from them, and something goes wrong it is partly or entirely your fault. 

Always give a clear and distinct launch signal. Tell every new launcher Not to launch your kite until they get a clear signal from you. There are three well known and widely accepted launch signals. 1) The thumbs Up. 2) The board raise, and 3) the Shouted “OK launch”.


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Aloha, Have fun and be Safe out there.

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