Nav aids
GPS unreliable 111500Z to 111800Z, 131200Z to 131600Z, 141800Z to 142100Z, 171300Z to 171700Z, 182100Z to…
NAVAREA IV 189/04
- issued
- 2004-06-07 14:20Z
- status
- cancelled 2004-06-17 00:00Z (archive)
- self-cancels
- 2004-06-20 22:00Z
- authority
- COGARD NAVCEN 261747Z MAY 04
- sea
- North Atlantic Ocean
- position
- 34.900, -76.875 · r 150.0 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 150 MILES OF 34-54.0N 076-52.5W. 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
111 within 180 nm since 2000 · 0 in the last 12 months · 1 in force now
00
05
10
15
20
25
- Messaging services unavailable at uscg remote communication facilities: a. boston (f) 41-42.00N 070-30.30W2025-06-13
- Uscg remote communication facility chesapeake (n) 36-44.00N 076-01.00W dsc services off air2024-02-22
- Uscg remote communication facility chesapeake (n) 36-44.00N 076-01.00W mf and hf services off air 221500Z to…2024-02-20
- Uscg remote communication facility chesapeake (n) 36-44.00N 076-01.00W mf and hf services off air 201500Z to…2024-02-20
- Uscg remote communication facility chesapeake (n) 36-44.00N 076-01.00W dsc services off air2023-12-23
- Uscg remote communication facility chesapeake (n) 36-44.00N 076-01.00W mf and hf transmitters unreliable…2023-11-29
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.