Status: Ongoing analysis Material from: Linus


 

1. Impact

At the time of formation, TC Seroja caused heavy precipitation on Indonesia on 4 April 2021.

2. Description of the event

The plots below show analyses of MSLP and 6-hour precipitation forecasts from 3 April 00UTC to 5 April 00UTC every 12h.


3. Predictability

  

3.1 Data assimilation

 

3.2 HRES

The plots below show observations from SYNOP (first plot) and HRES forecasts of 24-hour precipitation valid 4 April 00UTC - 5 April 00UTC, from different initial dates. 


3.3 ENS

The plots below show EFI for 1-day precipitation 4 April, from different initial times. 

The plot below shows the forecast evolution plot for 24-hour precipitation valid 4 April in the 0.5x0.5 degree box outlined in the plot above. HRES –red, ENS blue box-and-whisker, Model climate – red box-and-whisker. Triangle marks the maximum in the model climate based on 1200 forecasts.



3.4 Monthly forecasts


3.5 Comparison with other centres


4. Experience from general performance/other cases


5. Good and bad aspects of the forecasts for the event


6. Additional material














  • No labels