modified: app.py

modified:   static/css/style.css
	modified:   static/icons/Bildnachweis.txt
	new file:   static/icons/hagel.png
	new file:   static/icons/schneebedeckt.png
	new file:   static/icons/schneebedecktsonne.png
	new file:   static/icons/sturm.png
	new file:   static/icons/sturmundhagel.png

app.py

@@ -73,6 +73,7 @@ MOSMIX_PARAMS = [
     "hourly/large/probability_precipitation_height_gt_0_1mm_last_1h",
     "hourly/large/uv_index",
     "hourly/large/visibility",
+    "hourly/large/weather_significant",
 ]
 
 def _get_berlin():
@@ -335,7 +336,10 @@ def _parse_warning_datetime(value):
 # wolkig(1)         sun+cloud+rain   (showers)
 # regen             heavy rain
 # schnee            snow
-# blitz             thunderstorm (needs additional MOSMIX parameter)
+# blitz             dry thunderstorm (WW 17, 91-92)
+# sturm             thunderstorm with rain (WW 95, 97-98)
+# hagel             hail (WW 27, 89-90, 93-94, 96, 99)
+# schneebedeckt     hail + snow (hagel WW + temp ≤ 2°C)
 # nebel             dense fog  (visibility < 1000 m)
 # nebel_wolkig      foggy + overcast (1000-5000 m, cloud > 60 %)
 # wolkig_nebel_sonne patchy fog / haze (1000-5000 m, less cloud)
@@ -344,7 +348,11 @@ def _parse_warning_datetime(value):
 # nacht(2)          moon+cloud+rain
 # nacht(3)          moon+cloud+snow
 
-def weather_icon(cloud_pct, precip_mm, rain_prob, temp_c, is_night=False, visibility_m=None):
+_WW_HAIL       = {27, 89, 90, 93, 94, 96, 99}   # hail shower codes
+_WW_THUNDER_RAIN = {91, 92, 95, 97, 98}           # thunderstorm + precipitation
+_WW_THUNDER_DRY  = {17}                            # dry thunderstorm
+
+def weather_icon(cloud_pct, precip_mm, rain_prob, temp_c, is_night=False, visibility_m=None, weather_code=None):
     """Return the icon key for static/icons/{key}.png."""
     # Fog (takes priority; fog unlikely when precipitating heavily)
     if visibility_m is not None and visibility_m < 5000 and not (precip_mm and precip_mm > 0.5):
@@ -354,6 +362,16 @@ def weather_icon(cloud_pct, precip_mm, rain_prob, temp_c, is_night=False, visibi
             return "nebel_wolkig"
         return "wolkig_nebel_sonne"
 
+    # ── WW-code based icons (thunderstorm / hail) ─────────────────────
+    if weather_code is not None:
+        ww = int(weather_code)
+        if ww in _WW_HAIL:
+            return "schneebedeckt" if (temp_c is not None and temp_c <= 2) else "hagel"
+        if ww in _WW_THUNDER_RAIN:
+            return "sturm"
+        if ww in _WW_THUNDER_DRY:
+            return "blitz"
+
     # Snow / sleet (day and night)
     if temp_c is not None and temp_c <= 2 and (
         (precip_mm and precip_mm > 0.1) or (rain_prob and rain_prob >= 40)
@@ -386,6 +404,21 @@ def pick_daily_icon(hours):
     """Choose the most representative icon key for a whole day."""
     if not hours:
         return "sonne"
+    # Thunderstorm / hail: any hour with matching WW code takes priority
+    ww_codes = [h.get("weather_code") for h in hours if h.get("weather_code") is not None]
+    if ww_codes:
+        has_hail    = any(w in _WW_HAIL        for w in ww_codes)
+        has_t_rain  = any(w in _WW_THUNDER_RAIN for w in ww_codes)
+        has_t_dry   = any(w in _WW_THUNDER_DRY  for w in ww_codes)
+        avg_temp    = sum(h["temp_c"] for h in hours if h.get("temp_c") is not None)
+        n_temp      = sum(1 for h in hours if h.get("temp_c") is not None)
+        mean_temp   = avg_temp / n_temp if n_temp else 10
+        if has_hail:
+            return "schneebedeckt" if mean_temp <= 2 else "hagel"
+        if has_t_rain:
+            return "sturm"
+        if has_t_dry:
+            return "blitz"
     # Fog: majority of hours with reduced visibility and no heavy precipitation
     fog_hours = [
         h for h in hours
@@ -618,6 +651,8 @@ def get_mosmix_forecast(lat, lon, hours=72):
             wind_dir = float(wd) if not _isnan(wd) else None
             vis_raw  = p.get("visibility")
             visibility_m = round(float(vis_raw)) if not _isnan(vis_raw) else None
+            ww_raw = p.get("weather_significant")
+            weather_code = int(float(ww_raw)) if not _isnan(ww_raw) else None
             uv_raw   = p.get("uv_index")
             dt_local = pd.Timestamp(date_val).tz_convert(berlin).tz_localize(None)
             # Determine day/night for icon selection
@@ -653,7 +688,8 @@ def get_mosmix_forecast(lat, lon, hours=72):
                 "confidence_label": confidence_label,
                 "activity_score": a_score,
                 "visibility_m": visibility_m,
-                "icon":         weather_icon(clouds, precip, rain_prob, temp_c, is_night=is_night, visibility_m=visibility_m),
+                "weather_code": weather_code,
+                "icon":         weather_icon(clouds, precip, rain_prob, temp_c, is_night=is_night, visibility_m=visibility_m, weather_code=weather_code),
             })
         result_data = (forecast, station_info)
         _forecast_cache[cache_key] = result_data

static/css/style.css

@@ -439,7 +439,10 @@ main { flex: 1; }
 .wx-icon-wrap[data-icon="wolkig(1)"]   { background: linear-gradient(135deg, #1a6090 0%, #4090c0 100%); }
 .wx-icon-wrap[data-icon="regen"]       { background: linear-gradient(135deg, #0e3050 0%, #1a5080 100%); }
 .wx-icon-wrap[data-icon="schnee"]      { background: linear-gradient(135deg, #3070a8 0%, #70b8e0 100%); }
-.wx-icon-wrap[data-icon="blitz"]       { background: linear-gradient(135deg, #1e1040 0%, #5030a0 100%); }
+.wx-icon-wrap[data-icon="blitz"]        { background: linear-gradient(135deg, #1e1040 0%, #5030a0 100%); }
+.wx-icon-wrap[data-icon="sturm"]        { background: linear-gradient(135deg, #120e30 0%, #2a1870 60%, #0a0820 100%); }
+.wx-icon-wrap[data-icon="hagel"]        { background: linear-gradient(135deg, #284060 0%, #507090 100%); }
+.wx-icon-wrap[data-icon="schneebedeckt"]{ background: linear-gradient(135deg, #2a3a50 0%, #80a8c8 100%); }
 .wx-icon-wrap[data-icon="wolkig_nebel_sonne"] { background: linear-gradient(135deg, #706858 0%, #a09880 100%); }
 .wx-icon-wrap[data-icon="nebel"]               { background: linear-gradient(135deg, #7a8a96 0%, #b0c0cc 100%); }
 .wx-icon-wrap[data-icon="nebel_wolkig"]        { background: linear-gradient(135deg, #505a64 0%, #8898a8 100%); }

static/icons/Bildnachweis.txt

@@ -1 +1 @@
-Freepik, iconixar
+Freepik https://www.flaticon.com/de/autoren/freepik, iconixar https://www.flaticon.com/de/autoren/iconixar