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    hangInThere

    @hangInThere

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    Best posts made by hangInThere

    • Extend Weather Radar to 2Hrs

      I would like to suggest that Weather Radar playback be extended to 2Hr from the current 1Hr duration to match the duration of current satellite image playback (all 2Hrs). This makes it easier to study correlation of precipitation patterns with cloud patterns.

      posted in Your Feedback and Suggestions
      H
      hangInThere
    • 12hr Satellite image time resollution

      What is the current 12hr satellite image time resolution? I can get 10 mins resolution from Korea meteorological department for up to 18hrs to look at East Asia and Southeast Asia. I remember Windy's 12hr satellite image sequence was rather jerky with animation turned off. I turn off animation in order to examine cloud flows closely. This becomes very difficult to do on the low altitude clouds when they are overlapped by patches of higher altitude clouds and they can only be seen in the gaps between the latter but their motions become impossible to discern when the time resolution is much more than 10 mins. So before I pay for the premium subscription I would like to know what I will get.
      Another question, what is the difference in subscriber obligation btwn the one-time purchase and the annual subscription? Can one cancel the annual subscription after say two years?
      BTW, this is a great service, and I believe in paying for a good service that I use everyday to derive benefits from, especially for the unbelievably low price that it is charging. Just my personal opinion. Other users can have their own.

      posted in Windy Premium
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      hangInThere
    • Saving snapshots of all altitudes of wind maps all at once

      I would like to request adding a button to save snapshots of all altitudes of the wind maps to files named after a user given prefix and timestamp and altitude label. I do this several times a day in order to manually archive the altitude wind maps besides video recordings of the satellite images and weather radar images. It's very, very time consuming.

      posted in Your Feedback and Suggestions
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      hangInThere
    • Suggestion: Add new layer for cloud top pressure

      Currently, the IR satellite images only colorize the high altitude clouds while giving grayscale to mid and low altitude clouds. I would suggest adding a completely new layer for cloud top pressure to cover the entire range of hPa values from 100 to 1050 and adopt the color scale built from purple, black, blue, green, brown, and red and within each color apply grayscale, like what the Korea Meteological Agency does in its Image Viewer (https://nmsc.kma.go.kr/enhome/html/satellite/viewer/selectSatViewerEnhome.do?dataType=gk2a# ). With this layer, one can see all levels of clouds at once. For example, this past afternoon there were simultaneously high & mid altitude clouds from the west and low altitude clouds from the east over mid Sumatera Island, but none of the Blue/Visible/IR satellite image layers can distinguish the mid from the low altitude clouds, whereas the KMA's Cloud Top Pressure product does it so well. Go see it for yourself. Set the time to 1020 UTC and duration to "Last 12 Hrs". Try it. You will find that in such complex multi-layer cloud flow situation their color codes perform really well.

      posted in Your Feedback and Suggestions
      H
      hangInThere
    • RE: Suggestion: Add new layer for cloud top pressure

      @hangInThere
      Okay, this is what I do for now:

      [[0,[24,24,24,255]],
      [38.67625899280576,[240,240,240,255]],
      [40.51798561151079,[229,172,255,255]],
      [53.410071942446045,[183,95,226,255]],
      [79.19424460431655,[149,38,205,255]],
      [81.03597122302158,[64,64,163,255]],
      [106.82014388489209,[70,106,227,255]],
      [130.76258992805757,[49,153,231,255]],
      [154.70503597122303,[41,187,246,255]],
      [186,[163,253,61,255]],
      [195,[237,208,59,255]],
      [205,[251,128,34,255]],
      [214,[210,49,4,255]],
      [223,[122,4,3,255]],
      [256,[48,0,0,255]]]
      

      which results in this color scale:
      Screenshot from Windy Satellite IR Cloud Top Temperature Color Scale#3  2023-03-10.png

      and the IR image:
      Screenshot from Sumatera+Borneo IR 2023-03-10.png

      Instead of cloud top pressure, the color scale goes by cloud top temperature in Kelvins.

      Here, ground temperature is around 25 degC, i.e. 298K, and assuming 6.5K drop in temperature for every 1km increase of altitude, low clouds with top below 1km should read higher than about 291K, thus colored in the lightest purple or even white.

      The temperatures in the color scale need to be adjusted by however much the ground temperature is higher or lower than 25 degC. Obviously if the ground is 40 degC like in Europe's summer 2022 (15 degrees on top of 25 degC) we will be making an error in cloud altitude of more than 2km and mistaken mid altitude clouds for low altitude if the color scale's temperatures aren't adjusted accordingly.

      If someone can improve further, please post a reply below.

      posted in Your Feedback and Suggestions
      H
      hangInThere
    • RE: Option to fix the cursor on sounding

      @Ondřej-Šutera
      One more suggestion: instead of the user having to place the spot where the lifted dry adiabatic parcel temperature reaches its dew point, place it automatically and draw the dry & moist adiabatic curves thru this spot automatically. Saves all the trouble for the user.

      posted in Your Feedback and Suggestions
      H
      hangInThere

    Latest posts made by hangInThere

    • RE: Model forecast temperature up to 6 degrees lower than measured

      @Ondřej-Šutera

      Here's another day of huge disparity btwn model and actuality. The model forecast rain in most of the Malay Peninsula. In actuality, it's all dry except in Penang Island and Langkawi Island in the northwest, and a brief squall in Kuala Lumpur, around 5PM. There is some controlling factor that the ECMWF model doesn't get right. This is an opportunity to nail it.

      Screenshot_2023_0328 Windy Forecast Rain vs Actual Dry.png

      posted in Your Feedback and Suggestions
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      hangInThere
    • RE: Option to fix the cursor on sounding

      @Ondřej-Šutera
      One more suggestion: instead of the user having to place the spot where the lifted dry adiabatic parcel temperature reaches its dew point, place it automatically and draw the dry & moist adiabatic curves thru this spot automatically. Saves all the trouble for the user.

      posted in Your Feedback and Suggestions
      H
      hangInThere
    • RE: Model forecast temperature up to 6 degrees lower than measured

      @Ondřej-Šutera
      Is your team able to foreward this feedback to the ECMWF modelling team? Let them look into this. It's not just spot, but many spots between the Malay Peninsula and Sarawak that have 4 degC or more of difference with the model. This is a great opportunity for them to look into where their model can improve.

      posted in Your Feedback and Suggestions
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      hangInThere
    • RE: Option to fix the cursor on sounding

      @hangInThere
      One more suggestion on the Sounding Forecast: to add timestamp. Currently there is none.

      posted in Your Feedback and Suggestions
      H
      hangInThere
    • RE: Option to fix the cursor on sounding

      @hangInThere

      On the phone, there's a different problem with the Sounding Forecast spot control: the spot is right under the finger but I can't see it. So I always get it at the wrong place. See the screenshot:
      Screenshot from Anambas Islands Sounding Phone Forecast_2023_0321_163055.png

      I would suggest to create a whisker from 2 points, the 1st point selecting the spot, the 2nd point letting the finger drag the whisker.

      posted in Your Feedback and Suggestions
      H
      hangInThere
    • RE: Option to fix the cursor on sounding

      @Ondřej-Šutera
      Only if I set sufficient delay (7s) on the screen capture tool (Screenshot by Emmanuele Bassi et al. on Linux) and after selecting the capture area quickly bring my cursor to position exactly where I need it and wait ... snap. This is what I get, which is good:
      Screenshot from Natuna Island desktop Forecast Sounding 2023-03-21 16-41-18.png.
      But it would be far better if the Sounding Forecast tool can just let the user drag the dot by depressed left mouse button and leave it where the mouse button is released.

      posted in Your Feedback and Suggestions
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      hangInThere
    • Model forecast temperature up to 6 degrees lower than measured

      The ECMWF as well as other models forecast as much as 6 degreeC lower temperatures than measured. See below. Can you guys feedback to the model developers to get them to look into this?

      Betong (in Sarawak, on the north side of the Borneo Island), on lower right in the maps, measures 33 degC but modelled 27degC.

      Reported Temperatures:
      Screenshot from SCS south Reported Temp 2023-03-21 16-14-37.png

      Forecast Temperatures:
      Screenshot from SCS south Forecast Temp 2023-03-21 16-13-43.png

      posted in Your Feedback and Suggestions
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      hangInThere
    • Option to fix the cursor on sounding

      An option in right click pop up menu to fix the cursor on sounding will be really useful. As is, it follows the mouse all the time, so you can't freeze it where you want it and keep all the curves and annotations that track it. Makes it impossible to do screenshot with a 3rd party tool.

      posted in Your Feedback and Suggestions
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      hangInThere
    • RE: Skew T-Chart based on model data

      @Wheats
      Great! Thank you!!

      posted in Your Feedback and Suggestions
      H
      hangInThere
    • Skew T-Chart based on model data

      It would be a nice addition to Windy desktop to have skew T-chart based on model data like what NOAA has (https://rucsoundings.noaa.gov/gwt/?data_source=Op40&latest=latest&airport=KSEA&n_hrs=19&) for any spot upon left mouse click. A very useful tool to analyze the weather forecast and evaluate user's own alternative forecasts.

      f940e815-1c04-4113-ac45-7eae9b487756-image.png

      posted in Your Feedback and Suggestions
      H
      hangInThere