Alarms
Weather alarm thresholds
AccuWeather weather alarms are determined using the daily forecasts for a location. An alarm exists for a location if the forecast weather meets or exceeds the following thresholds:
| Alarm Type | Imperial Threshold | Metric Threshold |
|---|---|---|
| Rain | 0.5 inch | 12.7 mm |
| Snow | 1 inch | 2.54 cm |
| Ice | 0.1 inch | 0.254 mm |
| Sustained Wind | 30 mph | 48 kph |
| Wind Gust | 40 mph | 64 kph |
| Thunderstorm Probability | 75% | 75% |
Last modified on