Weather Pulse Now

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Rainfall and Pressure Explained

Aug 18, 2025 • Weather Pulse Now
Rainfall and Pressure Explained

Rainfall is the measure that is usually measured in millimeters (mm). A forecast of 18.5 mm means there heavy showers are expected that is enough to cause puddles or minor flooding in some down areas.

Meanwhile, atmospheric pressure at ~1013 hPa is the standard atmospheric pressure. Low pressure often indicates unsettled conditions such as rain or storms, while high pressure brings clearer skies.

By tracking rainfall and pressure on Weather Pulse Now, you can prepare for sudden weather shifts and plan safer activities outdoors.

🌧️ Rainfall Range Description
Light Rain < 2.5 mm/hour Light drizzle or showers
Moderate Rain 2.6 – 7.6 mm/hour Steady rain, noticeable but manageable
Heavy Rain > 7.6 mm/hour Downpour, may cause local flooding
🌧️ Daily Rainfall Totals
Light Showers < 10 mm/day Scattered showers, minimal impact
Moderate Rain 10 – 50 mm/day Widespread rain, moderate wet conditions
Heavy Rain / Flood Risk > 50 mm/day Risk of flooding, travel disruption possible

🌡️ Pressure Range Weather Indication
Standard Pressure ~1013 hPa Normal sea level atmospheric pressure
High Pressure > 1020 hPa Clear skies, calm, and dry weather
Low Pressure < 1000 hPa Cloudy, rainy, or stormy conditions
Very Low Pressure < 980 hPa Strong storms, cyclones, or hurricanes