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FAQ : Support : Home
 
1. Anything coming soon?
2. How will this product help me?
3. How do I read the graph?
4. So where should I go sailing based on this graph?
5. What does this graph NOT tell me?
6. Can the model be right but still not give me a complete picture of the wind will do?
7. What units are the y-axis in?
8. What is the difference between the short term and extended graphs?
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1. Anything coming soon?

Examples will be added of what the Windbow might look like for a few different types of days, including an "Epic Westerly Day", "Epic Easterly Day", etc.

2. How will this product help me?

The Windbow is an excellent tool to give you a relative feel for:

1) How windy the Gorge will be overall
2) Wind direction
3) Which portion of the Gorge will be the windiest

In other words, it can quickly help you estimate where the "hot spot" of strongest winds will be for the day.

3. How do I read the graph?

X Axis represents time. Moving from left to right will take you further out in time, from Today to Tomorrow, etc.

Y-axis represents the total cumulative gradient across the Gorge between Jones Beach and Port Kelley.

The Windbow colors coorelate to various sites/segments along the Gorge.

4. So where should I go sailing based on this graph?

The 3 important pieces of information to be gleaned from this graph are:

1) Total maximum gradient across the Gorge: Determined by the width of the entire windbow.

2) Segment of the Gorge with strongest winds: Determined by the color with the greatest width.

3)Direction of winds: Westerlies are indicated by a positive gradient (above x-axis), Easterlies indicated by a negative gradient (below x-axis).

5. What does this graph NOT tell me?

A few caveats:

1)The numbers on the y-axis represent the entire, cumulative pressure gradient found through the Gorge. To find the pressure gradient for a particular segment of the Gorge, you cannot simply correlate the height of a color to the numbers on the y-axis. Instead, look at the width of color containing your site.

2)This product is produced using modeled surface pressure data from the ETA 12km numeric model, one of the most heavily used government models. Numeric models have vastly improved over the last decade, but are still error prone. If the model fails to get an accurate glimpse of synoptic weather patterns from the start, then modeled values farther out in time may contain large errors. So bottom line, as time progresses, the graph should be looked at more for guidance on trends instead of specific values. Such is the nature of all atmospheric models.

3)The one area models still struggle mightily with is moisture and thus cloud cover. Additional heating or cooling as a function of less/more cloud cover could be a major factor in why this graph might deviate from actual pressure gradients.

6. Can the model be right but still not give me a complete picture of the wind will do?

Yes. Topography also plays a large role in winds through the Gorge. A wider portion of the Gorge represented with the same pressure gradient as a narrower portion will have weaker winds (remember Bernoulli's principle?). Conversely, a narrower gap will have higher winds than a wider gap with the same pressure difference. Therefore topography, which is not totally accounted for in the calculation of this graph, may also influence and shape winds differently than this graph depicts.

7. What units are the y-axis in?

Y-Axis units are in inches of Mercury (inHg).

8. What is the difference between the short term and extended graphs?

Well, besides the difference in dates shown, the short term graph is drawn using more data points for higher detail. The extended product uses less data points and is broken up into segments, allowing the user to focus on trends over time instead of specifics. See Caveat #2 under Question 5 for an explanation on why trends are more important in the extended outlook.

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