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Entry: 2.3 Nowcasting / Very Short-Range Forecasting - showing version 1

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Nowcasting, as outlined by the World Meteorological Organization (WMO), involves detailed forecasting of local weather, utilizing any method to predict conditions from the present to six hours ahead. It provides a comprehensive portrayal of the current weather, leveraging real-time observational data such as surface observations, satellite imagery, lightning, radar data, etc. Nowcasting by extrapolation excels in delivering high-resolution forecasts of weather phenomena for the immediate (2 hour) future. Advancements in data assimilation systems enable Numerical Weather Prediction (NWP) to outperform nowcast extrapolation thereafter. The use of NWP with data assimilation forms the basis of Very Short Range Forecasting (VSRF) up to 12 hours. To ensure a seamless VSRF, crucial in high-impact weather situations, advanced centers blend both NWP and nowcasting. This integration plays a vital role in issuing timely warnings and aiding decision-makers across various sectors.

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date submitted 9 May 2025 13:44:18.363
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entity 2.3 Nowcasting / Very Short-Range Forecasting
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description Nowcasting, as outlined by the World Meteorological Organization (WMO), involves detailed forecasting of local weather, utilizing any method to predict conditions from the present to six hours ahead. It provides a comprehensive portrayal of the current weather, leveraging real-time observational data such as surface observations, satellite imagery, lightning, radar data, etc. Nowcasting by extrapolation excels in delivering high-resolution forecasts of weather phenomena for the immediate (2 hour) future. Advancements in data assimilation systems enable Numerical Weather Prediction (NWP) to outperform nowcast extrapolation thereafter. The use of NWP with data assimilation forms the basis of Very Short Range Forecasting (VSRF) up to 12 hours. To ensure a seamless VSRF, crucial in high-impact weather situations, advanced centers blend both NWP and nowcasting. This integration plays a vital role in issuing timely warnings and aiding decision-makers across various sectors.
item class Concept
label 2.3 Nowcasting / Very Short-Range Forecasting
notation 3
register application area
status status experimental
submitter
account name https://api.github.com/users/amilan17
name amilan17

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version info 1
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Definition

description Nowcasting, as outlined by the World Meteorological Organization (WMO), involves detailed forecasting of local weather, utilizing any method to predict conditions from the present to six hours ahead. It provides a comprehensive portrayal of the current weather, leveraging real-time observational data such as surface observations, satellite imagery, lightning, radar data, etc. Nowcasting by extrapolation excels in delivering high-resolution forecasts of weather phenomena for the immediate (2 hour) future. Advancements in data assimilation systems enable Numerical Weather Prediction (NWP) to outperform nowcast extrapolation thereafter. The use of NWP with data assimilation forms the basis of Very Short Range Forecasting (VSRF) up to 12 hours. To ensure a seamless VSRF, crucial in high-impact weather situations, advanced centers blend both NWP and nowcasting. This integration plays a vital role in issuing timely warnings and aiding decision-makers across various sectors.
label 2.3 Nowcasting / Very Short-Range Forecasting
notation 3
type Concept