Surface maps including frontal Systems , L ,H pressures
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One of the most popular products among weather enthusiasts are surface maps, showing analyzed or forecasted data. These maps include low (L) and high (H) pressures, isobars at 4 hPa intervals, fronts, and other symbols. x marks the center of disturbances (minima for lows, maxima for highs). Thin continuous lines are isobars (equal sea-level pressure), while thick dashed lines represent 500/1000 thicknesses (e.g., 526, 548, 492 gpm), with lower values indicating cold air and higher values warm air. Thick segments denote troughs (non-frontal pressure singularities).
Frontal systems are labeled by type (cold, warm, occluded), level (surface or upper), intensity (frontogenesis for strengthening, frontolysis for weakening), or if stationary. Examples:
- F: surface cold front
- C: surface warm front 
- O: surface occluded front
- Q: stationary front
- Ff: weakening cold front
- Fd: strengthening cold front
- Od: weakening occluded front
Other symbols:
- E: thickness line
- T: trough
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@meteocabra great suggestion. Would be very helpful.
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@meteocabra @José-Filipe-Fernandes
Since Windy.com beginning, about ten years ago, many users have asked to visualize fronts like on Surface Analysis maps.
Why hasn't Windy done this? It's because Windy visualizes weather models, while these Surface Analysis maps are drawn by meteorologists, forecasters. But Windy doesn't employ any of them. Perhaps one day AI will be able to plot them?
