Correct derived briefing weather semantics

internal/briefing/summary_helpers.go

@@ -41,6 +41,8 @@ type TodayPlanning struct {
 	LateDayChangeWatch           []string
 }
 
+const outdoorIndicatorRiskScore = 25
+
 func buildOutdoorWindows(dayparts []forecast.DaypartSummary) OutdoorWindows {
 	var best *OutdoorWindow
 	var worst *OutdoorWindow
@@ -275,7 +277,7 @@ func scoreOutdoorWindow(daypart forecast.DaypartSummary) OutdoorWindow {
 		reasons = append(reasons, "alert overlap")
 	}
 	if daypart.Indicators.Heat || daypart.Indicators.Cold {
-		score += 25
+		score += outdoorIndicatorRiskScore
 		if daypart.Indicators.Heat {
 			reasons = append(reasons, "heat risk")
 		}
@@ -283,6 +285,19 @@ func scoreOutdoorWindow(daypart forecast.DaypartSummary) OutdoorWindow {
 			reasons = append(reasons, "cold risk")
 		}
 	}
+	for _, hazard := range []struct {
+		present bool
+		reason  string
+	}{
+		{present: daypart.Indicators.Snow, reason: "snow risk"},
+		{present: daypart.Indicators.Ice, reason: "ice risk"},
+		{present: daypart.Indicators.Fog, reason: "fog risk"},
+	} {
+		if hazard.present {
+			score += outdoorIndicatorRiskScore
+			reasons = append(reasons, hazard.reason)
+		}
+	}
 	if len(reasons) == 0 {
 		reasons = append(reasons, "quiet weather")
 	}