Other
Prn 31 unusable 101615Z to 110415Z aug
HYDROLANT 1649/99
- issued
- 1999-08-07 15:35Z
- status
- cancelled 1999-08-11 05:15Z (archive)
- self-cancels
- 1999-08-11 05:15Z
- authority
- NAVCEN ALEXANDRIA 071050Z AUG 99
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. PRN 31 UNUSABLE 101615Z TO 110415Z AUG. 2. CANCEL THIS MSG 110515Z AUG.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-08-10 16:15Z | 1999-08-11 04:15Z | — | 12 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
34 other warnings in force · see all
Other
Everything the classifier did not place elsewhere. All current other warnings →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.