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weather [2023/05/01 03:57]
preavley
weather [2024/01/10 12:08] (current)
preavley
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-===== Weather =====+====== Weather ​======
  
 <WRAP indent> <WRAP indent>
  
-As Reivers'​ Uncle Claude((He also often wondered if the rain would hurt the rhubarb)) ​ used to say, "​It'​s better to grab the bull by the tail, not the horns. Then you can let go when you want to." When a blow is coming through that will provide downwind opportunities,​ it can be safer to go out after the peak winds have passed and are diminishing rather than early on while the winds are still growing and max roughness of conditions and exact arrival time of peak winds have not yet been determined.+As Reivers'​ Uncle Claude((He also often wondered if the rain would hurt the rhubarb)) ​ used to say, "​It'​s better to grab the bull by the tail, not the horns. Then you can let go when you want to." When a blow is coming through that will provide downwind opportunities,​ it can be safer to go out after the peak winds have passed and are diminishing rather than early on while the winds are still growing and max roughness of conditions and exact arrival time of peak winds have not yet been determined. ​But be aware that advantages and disadvantages can vary depending on locale. For example, we have heard that downwind paddlers on Lake Superior prefer the front end of storms "​It'​s best to do a downwind in the building phase of a blow as once it has been going some hours the fast, long-fetch swells become too hard to catch…rounded swell being so frustrating and the remaining wind waves seem to even be blocked from the wind in the troughs, yuk."
  
-One fundamental aspect of using weather apps and weather websites is to understand that none of them are perfect. With use you can learn to identify local weather patterns for which the apps tend to have greater accuracy and patterns which present problems for them (and consequently should lead you to the clear understanding that such problematic patterns result in less predictable conditions on the water and increased risk for you).+One fundamental aspect of using weather apps and weather websites is to understand that none of them are perfect. With use you can learn to identify local weather patterns for which the apps tend to have greater accuracy and patterns which present problems for them (and consequently should lead you to the clear understanding that such problematic patterns result in less predictable conditions on the water and the potential of increased risk for you). 
 + 
 +----
  
 ==== Weather Models and Forecasting ==== ==== Weather Models and Forecasting ====
  
-It's not the weather app so much as the model that you choose to use with the app that really matters. In Bellingham, in our experience, the European model (ECMWF) definitely seems to be the most reliable. But these models seem to be most challenged during significantly unsettled weather - particularly in exactly predicting WHEN changes will occur ( or even reach our small zone of usual downwinding if we are just on the edge of some moving system). Know something about which model(s) your app is using (default model, how to change the default, etc.) - we still see long time boating locals who rely too much on the wrong weather prediction models within the apps that they use. And also be aware that unsettled weather is the most unpredictable and that you shouldn'​t expect complete precision in timing or location from predictions about changing weather.+It's not the weather app so much as the model that you choose to use with the app that really matters. In Bellingham, in our experience, the European model (ECMWF) definitely seems to be the most reliable. But these models seem to be most challenged during significantly unsettled weather - particularly in exactly predicting WHEN changes will occur ( or even reach our small zone of usual downwinding if we are just on the edge of some moving system). Know something about which model(s) your app is using (default model, how to change the default, etc.) - we still see long time boating locals who rely too much on the wrong weather prediction models within the apps that they use. And also be aware that unsettled weather is the most unpredictable and that you shouldn'​t expect complete precision in timing or location from predictions about changing weather. Also look at your weather map and see whether your downwinding area is close to the border of moving systems where a slight shift in some direction of such systems can mean a big difference in terms of which weather your paddling area falls in. If your downwind is predicted to be well within the boundaries of a given predicted weather, then the forecast there is more likely to be reliable.
  
   * [[https://​youtu.be/​lDNK3iKMu9k|Video Description of Models Used for Forecasts 6/2020]]   * [[https://​youtu.be/​lDNK3iKMu9k|Video Description of Models Used for Forecasts 6/2020]]
   * [[https://​blog.weather.us/​category/​tutorial-videos/​|Educational Weather Blog]] - blog.weather.us (North and South America)   * [[https://​blog.weather.us/​category/​tutorial-videos/​|Educational Weather Blog]] - blog.weather.us (North and South America)
   * [[https://​weathermodels.com/​|Become a Weather Modeling Wonk]] - weathermodels.com (North and South America)   * [[https://​weathermodels.com/​|Become a Weather Modeling Wonk]] - weathermodels.com (North and South America)
 +  * …
 +
 +----
  
 ==== Websites, Apps ==== ==== Websites, Apps ====
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   * [[https://​www.windy.com/​|Windy]] requires free registration to save favorite locations. Will also send you alerts of weather conditions you specify   * [[https://​www.windy.com/​|Windy]] requires free registration to save favorite locations. Will also send you alerts of weather conditions you specify
   * [[https://​wx.ikitesurf.com/​|iKitesurf]]   * [[https://​wx.ikitesurf.com/​|iKitesurf]]
-  * [[http://​www.buoyweather.com/​forecast/​marine-weather/​@48.69458640884518,-122.49755859375|Buoy Weather]]+  * [[https://​www.buoyweather.com/​forecast/​marine-weather/​@48.64,-122.51|Buoy Weather]] ​(initial view is located just west of Wildcat Cove, south of Bellingham)
   * [[https://​tempestwx.com/​map/​47.9292/​-120.8313/​7|Tempest Weather Stations]] map with personal weather station reports   * [[https://​tempestwx.com/​map/​47.9292/​-120.8313/​7|Tempest Weather Stations]] map with personal weather station reports
   * [[:​mobile_marine_apps_websites|2016 Extended Table of Marine Apps & Websites]] - Navigation, weather, tides, ship traffic, water conditions   * [[:​mobile_marine_apps_websites|2016 Extended Table of Marine Apps & Websites]] - Navigation, weather, tides, ship traffic, water conditions
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       * [[https://​cliffmass.blogspot.com/​|Cliff Mass Blog]]       * [[https://​cliffmass.blogspot.com/​|Cliff Mass Blog]]
       * [[https://​ovs.com/​wx-cafe|Weather Cafe]] Rufus La Lone - Longer range forecasts       * [[https://​ovs.com/​wx-cafe|Weather Cafe]] Rufus La Lone - Longer range forecasts
-      * [[https://​nvs.nanoos.org/​Explorer|NVS Data Explorer]] Buoy data+      ​* [[https://​www.youtube.com/​@PacificNorthwestWeather|Pacific Northerwest Weather Youtube Channel]] 
 +      * **Buoy Data** 
 +        ​* [[https://​nvs.nanoos.org/​Explorer?​snapshot=6d298656ba2a1ae6f7f4a678e1a25|NVS Data Explorer]] ​(address opens to PNW) 
 +        * [[https://​www.ndbc.noaa.gov/​obs.shtml?​lat=48.256282&​lon=-123.507248&​zoom=8&​type=oceans&​status=r&​pgm=&​op=&​ls=n|National Data Buoy Center]] (address opens to PNW) 
 +      * … 
 + 
 +----
  
 ==== Tides & Waves ==== ==== Tides & Waves ====
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   * [[:tides|]]   * [[:tides|]]
   * [[:​wave_basics|]]   * [[:​wave_basics|]]
 +  * …
 +
 +----
  
 ==== Wind Averages ==== ==== Wind Averages ====
  
   * [[:​places_surfski#​global_wind|Wind Maps, etc.]]   * [[:​places_surfski#​global_wind|Wind Maps, etc.]]
 +  * …
  
-==== Conversions ​====+---- 
 + 
 +==== Measurements/​Magnitudes ​====
  
 <WRAP indent> <WRAP indent>
  
-**Temperature**+See [[:​conversions|Numeric Conversions]] (mph, m/s, knots, degrees F, C)
  
-  * **°F= degrees Fahrenheit, °C = degrees Celsius** +[[https://​www.weather.gov/​mfl/​beaufort|Explanation of Beaufort Scale]]
-  * **°F= (9/5 * °C) + 32** +
-  * **°C= (°F - 32) * 5/9** +
-  * **5° C = 41° F;****10° C = 50° F; 20° C = 68° F** +
-=== Wind Speed === +
- +
-  * m/s = meters per second, knts = knots, mph = miles per hour, km/h or kph = kilometers per hour +
-      * **mph & m/s** +
-        * mph = 2.237 * m/s +
-        * m/s = 0.44704 X mph +
-      * **knts & m/s** +
-        * knts = 1.944 * m/s +
-        * m/s = 0.514444 X knts +
-      * **mph & knts** +
-        * mph = 1.15078 X knts +
-        * knts = 0.868976 X mph\ +
-      * **km/h & m/s** +
-        * km/h = 3.6 * m/s +
-        * m/s = 0.27778 * km/h +
-      * **knts & km/h** +
-        * knts = 1.852 * km/h +
-        * km/h = 0.539957 * knts +
-      * **mph & km/h** +
-        * mph = 1.60934 * km/h +
-        * km/h = 0.621371 * mph +
-  * [[https://​www.weather.gov/​mfl/​beaufort|Explanation of Beaufort Scale]]+
  
 </​WRAP>​ </​WRAP>​
 +
 +----
  
 ==== Resources ==== ==== Resources ====
weather.1682927850.txt.gz · Last modified: 2023/05/01 03:57 by preavley