La Crosse Technology WS-9046U instruction manual VIII. Beaufort Scale Wind Speed

Models: WS-9046U

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4.The WIND SPEED LCD will now show the maximum wind gust.

5.Press and release the WIND/RAIN/SNZ button.

6.The WIND SPEED LCD will now show the minimum wind chill.

7.Press and release the WIND/RAIN/SNZ button.

8.The WIND SPEED LCD will now show the maximum wind chill.

To reset the maximum and minimum wind/wind chill values:

1.Select the value you wish to reset by pressing and releasing the WIND/SNZ button.

2.Press and hold the SET button for 5 seconds.

3.The record will now be reset and show either 0.0 for max wind speed and wind gust or the current wind chill in the OUTDOOR LCD.

To return to the normal viewing mode:

1.Press and release the ALM/+ button or

2.After 15 seconds the display will automatically return to the normal viewing mode.

VIII. BEAUFORT SCALE WIND SPEED

The Beaufort Scale wind meter is located at the top of the WIND SPEED LCD. It corresponds to the average wind speed and not the gust. On the following pages is a list of the Beaufort Scale and the wind speeds it corresponds to.

fort Number

or Force

0

1

2

3

4

5

6

Wind Speed

 

mph

 

km/hr

 

knots

 

 

 

 

 

 

 

 

 

<1

<1

<1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1-3

1-5

1-3

 

 

mph

 

kph

 

knots

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4-7

6-11

4-6

 

 

mph

 

kph

 

knots

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8-12

 

12-19

 

7-10

 

 

mph

 

kph

 

knots

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13-18

20-28

 

11-16

 

 

mph

 

kph

 

knots

 

 

 

 

 

 

 

 

 

 

 

 

 

19-24

29-38

 

17-21

 

 

mph

 

kph

 

knots

 

 

 

 

 

 

 

 

 

 

 

 

 

25-31

39-49

 

22-27

 

 

mph

 

kph

 

knots

 

 

 

 

 

 

 

 

Description

Calm

Light Air

Light Breeze

Gentle Breeze

Moderate Breeze

Fresh Breeze

Strong Breeze

Effects Land / Sea

Still, calm air, smoke will rise vertically.

Water is mirror-like.

Rising smoke drifts, wind vane is inactive.

Small ripples appear on water surface.

Leaves rustle, can feel wind on your face, wind vanes begin to move.

Small wavelets develop, crests are glassy.

Leaves and small twigs move, light weight flags extend.

Large wavelets, crests start to break, some whitecaps.

Small branches move, raises dust, leaves and paper.

Small waves develop, becoming longer, whitecaps.

Small trees sway.

White crested wavelets (whitecaps) form, some spray.

Large tree branches move, telephone wires begin to "whistle", umbrellas are difficult to keep under control.

Larger waves form, whitecaps prevalent,

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La Crosse Technology WS-9046U VIII. Beaufort Scale Wind Speed, Fort Number Or Force Wind Speed Mph Km/hr Knots