Nav aids
GPS unreliable 111500Z to 111800Z, 131200Z to 131600Z, 141800Z to 142100Z, 171300Z to 171700Z, 182100Z to…
NAVAREA IV 188/04
- issued
- 2004-06-06 23:10Z
- status
- cancelled 2004-06-20 22:00Z (archive)
- self-cancels
- 2004-06-20 22:00Z
- authority
- COGARD NAVCEN 26 MAY 04
- sea
- North Atlantic Ocean
- position
- 29.708, -79.667 · r 100.0 nm
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. GPS UNRELIABLE 111500Z TO 111800Z, 131200Z TO 131600Z, 141800Z TO 142100Z, 171300Z TO 171700Z, 182100Z TO 190001Z, 192300Z T0 200200Z AND 201800Z TO 202100Z JUN WITHIN 100 MILES OF 29-42.5N 079-40.0W. 2. CANCEL THIS MSG 202200Z JUN.
Activity windows · 6 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2004-06-11 15:00Z | 2004-06-11 18:00Z | — | 3 h |
| 2004-06-13 12:00Z | 2004-06-13 16:00Z | — | 4 h |
| 2004-06-14 18:00Z | 2004-06-14 21:00Z | — | 3 h |
| 2004-06-17 13:00Z | 2004-06-17 17:00Z | — | 4 h |
| 2004-06-18 21:00Z | 2004-06-19 00:01Z | — | 3 h 01 |
| 2004-06-20 18:00Z | 2004-06-20 21:00Z | — | 3 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
This area · aids-to-navigation notices
71 within 180 nm since 1996 · 1 in the last 12 months · 1 in force now
96
00
05
10
15
20
25
26
- Broadcast and communication services unreliable at uscg remote communication facilities: a. boston 41-43.00N…2026-07-03
- NAVTEX station charleston (e) 32-08.00N 081-42.00W unreliable2024-05-07
- Mf, hf, and dsc services unreliable 241300Z to 241800Z apr at uscg remote communication facilities: a.…2024-04-23
- Mf, hf and dsc services off air 221300Z to 221800Z apr at uscg remote communication facilities: a. boston…2024-04-18
- Mf, hf, and dsc services unreliable 141400Z to 141500Z mar at uscg remote communication facilities: a.…2024-03-12
- Mf, hf and dsc services unreliable 062100Z to 062200Z mar at uscg remote communication facilities: a. miami…2024-03-05
Season · when aids-to-navigation notices happen here
J
F
M
A
M
J
J
A
S
O
N
D
month of issue, all years in the archive
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.