| Updated every day with a 21-day delay! The latest initial date is 20250209.
 
 Area:
 The Arctic (inc. SST)
 The Arctic (ens. spread)
 The Antarctic (inc. SST)
 The Antarctic (ens. spread)
 
 Initial time :
 Year.Month
 Day
 
 
 
 Lead time:
 Week1 (+1-7 days)
 Week2 (+8-14 days)
 Week3 (+15-21 days)
 Week4 (+22-28 days)
 Week5 (+29-35 days)
 Week6 (+36-42 days)
 Week7 (+43-49 days)
 Week8 (+50-56 days)
 
 Satellite observation
 
 
 
 
 Initial days of forecasts:
 
*1 HMCR: Wed (-31 May 2017); Thu (08 Jun. 2017-)
| centre (fcst length) | Sun | Mon | Tue | Wed | Thu | Fri | Sat |  
| BoM (week 8) |  |  |  |  |  |  |  |  
| CMA (week 8) |  |  |  |  |  |  |  |  
| ECMWF (week 6) |  |  |  |  |  |  |  |  
| ECCC (week 4) |  |  |  |  |  |  |  |  
| HMCR (week 8) *1 |  |  |  |  |  |  |  |  
| ISAC-CNR (week 4) *2 |  |  |  |  |  |  |  |  
| JMA (week 4) *3 |  |  |  |  |  |  |  |  
| KMA (week 8) |  |  |  |  |  |  |  |  
| METFR (week 4) *4 |  |  |  |  |  |  |  |  
| NCEP (week 6) |  |  |  |  |  |  |  |  
| UKMO (week 8) |  |  |  |  |  |  |  |  *2 ISAC-CNR: Mon (-16 Jan. 2017); Thu (19 Jan. 2017-)
 *3 JMA: Tue,Wed (-15 Mar. 2017); Wed (22 Mar. 2017-)
 *4 METFR: 1st of each month (-Feb 2016), Thu (Mar. 2017-)
 
 
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