South KoreaPublic sector2024 – ongoingKorea Meteorological Administration
NowAlpha precipitation nowcasting
Korea's weather agency produced short-term rainfall predictions within 40 seconds using NowAlpha
Problem
Sudden local downpours increased the need for rapid rainfall forecasts. Numerical prediction took 10 minutes to produce results.
Approach
The agency developed NowAlpha and used it in forecasting. Trained on 9 years of radar and observation data, it predicted rainfall at 10-minute intervals up to 6 hours ahead.
Results
40초maximum rainfall-prediction production time, compared with 10 minutes for numerical prediction, according to the agency
Takeaway
The reported improvement concerned forecast production time; it did not establish a reduction in disaster losses.
Categories
- Industry
- Public sector
- Business function
- Production and quality
- Innovation type
- Process innovation
- AI technology
- Predictive analytics and ML
- Adoption
- Built in-house
- Evidence
- Company's own claim
Sources
Source summaries
[1]Korea Meteorological Administration8 Jun 2026
The agency described operational use of NowAlpha and reported predictions within 40 seconds. It discussed a subsequent model upgrade separately.
Full details are in the original sources.
Added 1 Nov 2026 · Updated 1 Nov 2026