Thursday: W/NW 13/18 knots. Sea: 1/1.5 metres. Swell: NE 2/2.5 metres. Friday: W/SW 10/15 knots tending N/NE during the afternoon and increasing to 15/20 knots in the evening before tending NW later. Sea: 1/1.5 metres increasing to 1.5/2 metres in the evening. Swell: E/NE 2/2.5 metres. Outlook Saturday: W/NW 20/30 knots ahead of a W/SW change 20/30 knots during the day. Outlook Sunday: S/SW 25/35 knots, reaching 40 knots offshore at times.
Issued Thu 17:10 EDT Seas: Up to 2.0m Swell: Up to 2.5m, ENE
Thursday Evening
Isolated showers and thunderstorms. Fresh north to northwest winds.
Moon Phase
Phase: Third Quarter Moon
Illumination: 53%
Full in: 22 days
New in:
8 days
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4T Fingers Computing Wind Speed, Direction and Prediction
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The Tweed Coast's Previous 24hr Winds & both a 72hr and 7 Day Wind Forecast
(These observations have not been quality controlled.
Wind observations are a 10-minute average at the height of 10 metres. The wind gust is measured over 3 seconds.)
Note: Chart Updates available at around about quarter past the hour
Data Courtesy NOAA/NWS/NCEP Ocean Modeling Branch
Last Updated: 2008-Nov-20 11:53:41 pm
Wind Prediction (Speed & Direction)
The image Below, even though not detailed, is a Animated Gif of the Wind Speed And Direction predicted
over the next 7 days from WetSands
UTZ is used for the Days, Times and Dates
BOM Wind Speeds
Summary of New BOM wind warnings
Wind warning
Wind range
Strong wind
26 to 33 knots
48.1 - 61.05km/h
Gale
34 to 47 knots
62.9 - 86.95km/h
Storm force
48 to 63 knots
88.8 - 116.55km/h
Hurricane force
64 knots or more
above 118.4km/h
One knot = one nautical mile per hour = 1.85 kilometres per hour
Onshore Wind Speeds
Speed (km/hr)
Description
Effect on the Sea
<1
Calm
Oil Slick
1-5
Light Air
Super Glassy
6-11
Light Breeze
Glassy
12-19
Gentle Breeze
Crumbly to small waves
20-28
Moderate Breeze
Choppy to small waves
29-38
Fresh Breeze
Choppy slop many whitecaps
39-49
Strong Breeze
Large cross-chop waves, many whitecaps
50-61
Near Gale
Large wind waves all whitecaps
62-74
Fresh gale
High waves, foam streaks
75-88
Stong gale
High waves, foam streaks
89-102
Whole gale
Very high waves, rolling sea
103-117
Storm
Very high waves, rolling sea
117
Tropical Cyclone
Sea white with spray and foam
The Beaufort wind speed scale:
No.
Wind speed
Gust speed
Meteorological classification
Terms used in general forecast
Wind effect on land
0
<1 knot
calm
calm
Smoke rises vertically
1
1 3
light air
light winds
Smoke drifts
2
4 6
light breeze
light winds
Leaves rustle, water ripples; '15 knot' dry windsock tail drooping 45° or so
3
7 10
gentle breeze
light winds
Wind felt, leaves in constant motion, smooth wavelets form on farm dams and small lakes, smoke rises at an angle above 30°; '15 knot' dry windsock tail 15° or so below horizontal
4
11 16
moderate breeze
moderate wind
Small branches move, dust blown into air, crested wavelets form
5
17 21
fresh breeze
fresh wind
Small trees sway, smoke from small fires blown horizontally; '15 knot' dry windsock horizontal
6
22 27
strong breeze
strong wind
Large branches sway, whistling in wires
7
28 33
near gale
strong wind
Whole trees in motion
8
34 40
43 - 51
fresh gale
gale wind
Twigs break off, difficulty in walking
9
41 47
52 - 60
strong gale
severe gale
Some building damage
10
48 56
61 - 68
whole gale
storm
Trees down
11
57 62
69 - 77
storm
violent storm
Widespread damage
12
63 +
78 +
tropical cyclone
tropical cyclone
Severe extensive damage
Wind effect at sea and large lakes Beaufort scale number:
0 Sea is mirror-like
1 Ripples present but without foam crests
2 Small wavelets with glassy appearance do not break
3 Large wavelets, crests begin to break with scattered white horses
4 Small waves becoming longer, fairly frequent white horses
5 Moderate waves, many white horses with chance of spray
6 Large waves are forming with extensive white foam crests,spray probable
7 The sea heaps up, white foam from breaking waves is blown in streaks
8 The edges of crests break into spindrift with well marked foam streak lines
9 High waves with tumbling crests and spray, dense foam streaks
10 Very high waves with overhanging crests, surface appearance white, visibility affected
11 Chaotic sea, large parts of waves blown into spume with foam everywhere
12 Air filled with foam and spray, visibility severely impaired