Sail-World.com : Telcoinabox Airlie Beach Race Week - Day 2 forecast
Telcoinabox Airlie Beach Race Week - Day 2 forecast
|
|
|
'Forecast chart for 1600hr today'
Kenn Batt
|
Telcoinabox Airlie Beach Race Week - Day 2 forecast: Nil Warnings current at time of writing for this area.
Synoptic Discussion: A ridge of high pressure lies over Queensland.
Observations:
At 0600hr Hamilton Island was reporting the following conditions:
Wind 150deg at 24kn (ave) gusting to 36kn, Temp 15C, Pressure 1021hPa).
Forecast Winds for Middle of Pioneer Bay (Read Discussion below)
1000:MD190 DR(210-170) MS16 SR13-24kn
1200:MD130 DR(150-110) MS15 SR12-22kn
1400:MD120 DR(140-100) MS13 SR09-19kn
1600:MD120 DR(140-100) MS12 SR08-18kn
1800:MD120 DR(140-090) MS10 SR06-15kn
Note: Direction trending 20-30deg more left than above closer to coast after about 1100hr.
Whitsunday Passage and Molle Channel: Wind speeds 3 to 5kn stronger at times than those above first up this morning, before easing late morning. Winds can be gusty and erratic around some headlands and in more constrained locations.
Note: First column is mean wind direction in deg Magnetic (MD). It is the 10min average (mean) value at a height of 10m above the water leading up to the hour quoted. The second column is the directional range (DR) of the wind direction in deg Mag. This takes into account the natural oscillation of the wind and is a function of the atmospheric stability, etc. The third column is the mean speed (MS) in knots (kn) and is the average 10min value leading up to the hour quoted at a height of 10m above the water. The last column is the wind speed range (SR) in knots and is the lowest wind speed to highest wind speed in the 10min leading up to forecast hour.
Discussion: A ridge of high pressure lies along the Q’ld coast. Like yesterday though, a bubble high is expected to form over the general area during the afternoon (see forecast chart valid for 1600hr today). This situation (like yesterday) should see the SE winds ease during the morning and trend more left under the influence of the sea breeze component.
 | Latest analysis - Kenn Batt |
Other possibilities: 45% chance that bubble high doesn’t form. If this happens then winds would hang in from 140-120deg at 14-22kn (ave) and 3-5kn stronger in the Whitsunday Passage and Molle Channel at times.
Note: Wind will be lighter in the lee of any landmass and stronger and more gusty between islands (in channels and passages) and around some headlands.
Natural oscillations today around 15 to 25 deg away from effects of topography, tending 30 to 50 deg closer to the effects of any land mass (including islands and headlands).
Weather: Cool, dry and sunny. Maximum land temperature at Airlie Beach: about 21 degrees.
Wind Waves: 0.5 to 2.0 metres. Less in lee of land, more when wind wave opposes tidal current and further offshore. (Wave heights quoted are significant wave heights).
Tide at Shute Harbour: High of 2.19m at 0631hr, Low of 0.94m at 1226hr and High of 2.98m at 1915hr.
Tidal Stream: A good ebb this morning becoming slack before flooding this afternoon. Be very careful particularly in passages, channels, close to islands, etc.
Remember: Tidal currents generally flood to the south and ebb to the north in the Whitsundays (with a multitude of local effects and eddies. So be prepared!).
Sea Temperature: about 20 degrees.
Outlook:
Sunday: Dry and cool. SW to SE 8 to 15 kn (ave), reaching 15 to 20 kn (ave) and gusty at times during the morning, particularly offshore. Direction trending SE to NE at 8 to 14kn (ave) during the afternoon
Wind speeds are expected to be 3-5kn stronger at times in the Whitsunday and Molle Passages during the morning period.
Airlie Beach Race Week website
by Kenn Batt
Click on the FB Like link to post this story to your FB wall
http://www.sail-world.com/index.cfm?nid=100868
9:48 PM Fri 10 Aug 2012GMT
Click here for printer friendly version
Click here to send us feedback or comments about this story.
Click for further information on
2012 Telcoinabox Airlie Beach Race Week Media Centre
Related News Stories:
MORE STORIES ...
|
|
|
|
Our Advertisers are committed to our sport, please support them!
This site and its contents are © Copyright TetraMedia Pty. Ltd and/or the original author, photographer etc. All Rights Reserved.
Photographs are copyright by law. If you wish to use or buy a photograph you must contact the photographer directly (there is a hyperlink in most cases to their website, or do a Google search.) with your request.
Please do not contact
Sail-World.com
as we cannot give permission for use of other photographer’s images.
Only if the photographer named on the image is Sail-world.com, Powerboat-world.com, Marinebusiness-world.com or NZBoating-World.com.
Contact us
.
Ph: +61 2 8006 1873
or complete our
feedback form
Contact us
.
View our Privacy Policy.
[ Go Home]
[ Banner Advertising Specification]
[Bot Archive ]
Customised news feeds -Marine Industry companies, Clubs and Associations have their own customised version of our news feed on their website.
Look_here_to_see_examples
|
| | |
