Nav aids
GPS jamming exercise 0830Z to 1600Z daily 19 jul thru 31 aug in area within 28 miles of 54-50.3N 004-55.8W
North Channel Irish Sea · Scotland · HYDROLANT 1882/21
- issued
- 2021-07-19 00:10Z
- status
- cancelled 2021-08-29 22:16Z (archive)
- self-cancels
- 2021-08-31 17:00Z
- authority
- WZ 765/21 190006Z JUL 21.
- sea
- Irish Sea and St. George's Channel
- position
- 54.838, -4.930 · r 28.0 nm
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
NORTH CHANNEL IRISH SEA. SCOTLAND. DNC 20. 1. GPS JAMMING EXERCISE 0830Z TO 1600Z DAILY 19 JUL THRU 31 AUG IN AREA WITHIN 28 MILES OF 54-50.3N 004-55.8W. CONTACT MOD FREUGH RANGE CONTROL ON PHONE: 44 1776 888932, 44 1776 888930. 2. CANCEL THIS MSG 311700Z AUG 21.
Activity windows · 44 in the telegram
| opens (UTC) | closes (UTC) | local (UTC) | length |
|---|---|---|---|
| 2021-07-19 08:30Z | 2021-07-19 16:00Z | Jul 19, 08:30 → Jul 19, 16:00 | 7 h 30 |
| 2021-07-20 08:30Z | 2021-07-20 16:00Z | Jul 20, 08:30 → Jul 20, 16:00 | 7 h 30 |
| 2021-07-21 08:30Z | 2021-07-21 16:00Z | Jul 21, 08:30 → Jul 21, 16:00 | 7 h 30 |
| 2021-07-22 08:30Z | 2021-07-22 16:00Z | Jul 22, 08:30 → Jul 22, 16:00 | 7 h 30 |
| 2021-07-23 08:30Z | 2021-07-23 16:00Z | Jul 23, 08:30 → Jul 23, 16:00 | 7 h 30 |
| 2021-07-24 08:30Z | 2021-07-24 16:00Z | Jul 24, 08:30 → Jul 24, 16:00 | 7 h 30 |
| 2021-07-25 08:30Z | 2021-07-25 16:00Z | Jul 25, 08:30 → Jul 25, 16:00 | 7 h 30 |
| 2021-07-26 08:30Z | 2021-07-26 16:00Z | Jul 26, 08:30 → Jul 26, 16:00 | 7 h 30 |
| … 36 more | |||
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
1971 within 180 nm since 1998 · 3 in the last 12 months · 3 in force now
98
00
05
10
15
20
25
26
- Mew island light 54-41.90N 005-30.80W unreliable2026-08-11
- Mf dsc service off air at tiree 56-30.20N 006-57.80W2026-08-08
- Mf dsc and r/t services off air at: a. bawdsey 51-59.60N 001-24.50E2026-08-01
- NAVTEX station cullercoats (g) 55-04.00N 001-28.00W unreliable 0800Z to 1500Z daily 07 thru 09 may2024-05-06
- Dsc services at glengorm site 56-37.90N 006-08.00W off air2024-04-29
- Isle of man light 54-03.70N 004-48.00W unlit2024-04-25
Season · when aids-to-navigation notices happen here
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month of issue, all years in the archive
Timeline
- Cancel HYDROLANT 1882/21 and this msg, exercise completecancelled by · 2021-08-29
Nearby now · within 120 nm
- Mew island light 54-41.90N 005-30.80W unreliableNav aids · 21.9 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.