Navigational warnings, week 2017-W52

2017-12-25 to 2017-12-31 UTC

1. 12-25
   16
2. 12-26
   21
3. 12-27
   38
4. 12-28
   43
5. 12-29
   31
6. 12-30
   32
7. 12-31
   23

issued

204

cancelled

227

in force at end

445

of these still in force

0

Not for navigation. Counts include only warnings we display; ongoing search-and-rescue traffic is excluded until 30 days after it closes.