Nav aids
Loran-c station grangeville, rates 7980-W and 9610-Z, off air 091400Z to 091500Z nov, alternate 101400Z to…
NAVAREA IV 370/99
- issued
- 1999-11-04 09:30Z
- status
- cancelled 1999-11-04 20:42Z (archive)
- self-cancels
- 1999-11-10 16:00Z
- authority
- COGARD NAVCEN 072100Z OCT 99
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. LORAN-C STATION GRANGEVILLE, RATES 7980-W AND 9610-Z, OFF AIR 091400Z TO 091500Z NOV, ALTERNATE 101400Z TO 101500Z NOV. 2. CANCEL THIS MSG 101600Z NOV.
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-11-09 14:00Z | 1999-11-09 15:00Z | — | 1 h |
| 1999-11-10 14:00Z | 1999-11-10 15:00Z | — | 1 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
Timeline
- Loran-c station grangeville, rates 7980-W and 9610-Z, off air 091400Z to 091500Z novcancelled by · 1999-11-04
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
193 aids-to-navigation notices in force · see all
Nav aids
Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →
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.