Nav aids
GPS jamming exercises 1300Z to 1500Z daily 25 thru 27 may in area within 32 miles of 52-08.5N 004-34.3W…
Cardigan Bay · Wales · HYDROLANT 1399/21
- issued
- 2021-05-25 06:52Z
- status
- cancelled 2021-05-27 16:00Z (archive)
- self-cancels
- 2021-05-27 16:00Z
- authority
- WZ 568/21 250318Z MAY 21.
- sea
- Irish Sea and St. George's Channel
- position
- 52.142, -4.572 · r 32.0 nm
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
CARDIGAN BAY. WALES. DNC 20. 1. GPS JAMMING EXERCISES 1300Z TO 1500Z DAILY 25 THRU 27 MAY IN AREA WITHIN 32 MILES OF 52-08.5N 004-34.3W BETWEEN 340 DEGREES AND 025 DEGREES. 2. CANCEL THIS MSG 271600Z MAY 21.
Activity windows · 3 in the telegram
| opens (UTC) | closes (UTC) | local (UTC) | length |
|---|---|---|---|
| 2021-05-25 13:00Z | 2021-05-25 15:00Z | May 25, 13:00 → May 25, 15:00 | 2 h |
| 2021-05-26 13:00Z | 2021-05-26 15:00Z | May 26, 13:00 → May 26, 15:00 | 2 h |
| 2021-05-27 13:00Z | 2021-05-27 15:00Z | May 27, 13:00 → May 27, 15:00 | 2 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
1790 within 180 nm since 1997 · 2 in the last 12 months · 2 in force now
97
00
05
10
15
20
25
26
- Mew island light 54-41.90N 005-30.80W unreliable2026-08-11
- Fowey light 50-19.60N 004-38.90W unreliable2026-07-27
- Fog signal at mumbles head light 51-34.00N 003-58.30W inoperative2024-04-26
- Isle of man light 54-03.70N 004-48.00W unlit2024-04-25
- Bishop rock light 49-52.40N 006-26.70W unreliable2024-04-11
- RACON at bridge buoy 50-39.60N 001-36.90W inoperative2024-04-09
Season · when aids-to-navigation notices happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
- Fowey light 50-19.60N 004-38.90W unreliableNav aids · 109 nm
Worldwide now
195 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.