(In part one of his guide on reading the tea leaves of Joe's Beach at Heckscher, Mike Burns shared his experience and wisdom in forecasting when Heckscher will be windy. Here in part two Mike deciphers the iWindsurf wind meters and translates their readings into news you can use.)
There are 2 meters that are useful for reading the wind at Heckscher. The Great South Bay meter and the Bluepoint Meter. The location of the Great South Bay meter is about 15 miles west of Heckscher at Tanner Park. The Bluepoint meter is very close but is blocked from the S and SW a bit, so I'll list the wind directions that we would sail Heckscher and what to expect the wind to be on the water based on the readings from the meters.
From S and SW: The Great South Bay meter can be pretty accurate. The only problem is that the wind mixes better when it's having trouble mixing to the west so sometimes the GSB meter is a little high. For the most part it's very accurate for S and SW and is a very good indicator of the real wind on the water. The Bluepoint meter is blocked a bit form the S and SW, so go by the gusts for the average wind reading.
Easterly readings from the Great South Bay meter are incredibly low. You have to go by the gusts and then even add a few knots depending on wind strength. The more wind, the more you need to add onto the gusts. The Bluepoint meter seems to be much more accurate to read for an Easterly at Heckscher. The launch is more exposed to the wind than where the meter is located so this meter might read a little low, but is a better indicator of the real wind than the Great South Bay Meter.
A westerly is what it is on the Great South Bay Meter. The Bluepoint Meter hasn't been around long enough for me to really say how accurate it is from a due west reading.
Example of real wind and meter readings:
Meter Readings from SW: Expected real on water SW wind:
GSB: SW ave 18, gusts 22. SW 18, gusts to 22
BP: SW ave 18, gusts to 22 SW 22 with higher gusts.
Meter readings from the E: Expected real on water E wind:
GSB: E ave 10, gusts to 17 18 to 20 with higher gusts
GSB: E ave 17, gusts to 25 about 30 with higher gusts
BP: E ave 17, gusts to 25 about 19 with gusts to 25
Meter reading from W: Expected real on water W wind:
GSB: W ave 20, gusts to 25 20 gusts to 25
BP: meter is too new, not enough testing
If you missed part one (in which Mike tells you how to forecast the good days at Hecksher) here's a link.
(Image: iWindsurf's map for Long Island waters, with the Hecksher meters pointed out.)
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