261849Z OCT 24
HYDROARC 263/24(42,43).
BARENTS SEA.
RUSSIA.
DNC 22.
1. HAZARDOUS OPERATIONS, SPACE DEBRIS
0700Z TO 0900Z DAILY 31 OCT THRU 05 NOV
IN AREAS BOUND BY:
A. 70-56.00N 032-04.58E, 70-10.00N 033-40.00E,
69-54.00N 032-40.00E, 70-08.00N 032-04.58E,
70-15.00N 031-50.00E, 70-30.07N 031-50.00E,
70-36.22N 031-43.18E.
B. 76-30.00N 022-00.00E, 75-20.00N 024-40.00E,
74-50.00N 021-40.00E, 75-50.00N 018-40.00E.
2. CANCEL THIS MSG 051000Z NOV 24.
251702Z OCT 24
HYDROARC 261/24(GEN).
1. HYDROARC WARNINGS IN FORCE AS OF 251659Z NOV.
ALL THE INFORCE WARNINGS ARE LISTED HERE.
260/2024, 259/2024, 257/2024, 249/2024, 232/2024,
231/2024, 230/2024, 218/2024, 210/2024, 187/2024,
180/2024, 175/2024, 165/2024, 97/2024.
272/2023, 270/2023, 269/2023, 178/2023, 163/2023,
157/2023, 156/2023, 155/2023.
293/2022, 262/2022, 260/2022, 235/2022, 228/2022,
224/2022, 223/2022, 198/2022.
2. THE COMPLETE TEXT OF ALL IN-FORCE HYDROARC
BROADCAST WARNINGS ARE AVAILABLE ON THE NGA
MARITIME SAFETY INFORMATION WEBSITE AT:
MSI.NGA.MIL/NAVWARNINGS.
ALTERNATIVELY, THESE MAY BE REQUESTED BY E-MAIL
FROM NGA AT NAVSAFETY@NGA.MIL.
3. CANCEL HYDROARC 258/24.
231757Z OCT 24
HYDROARC 260/24(43).
NORWEGIAN SEA.
NORWAY.
DNC 21, DNC 22.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
1700Z TO 0200Z DAILY 27 OCT THRU 17 NOV
IN AREAS BOUND BY:
A. 69-17.00N 016-02.10E, 69-21.70N 016-09.00E,
69-25.50N 015-58.00E, 69-24.00N 015-48.00E,
69-18.40N 015-47.50E.
B. 71-52.00N 014-50.00E, 71-25.00N 011-17.00E,
69-53.00N 014-00.00E, 70-05.00N 015-30.00E,
70-18.00N 016-10.00E.
2. CANCEL THIS MSG 180300Z NOV 24.
182339Z OCT 24
HYDROARC 259/24(15).
DEESE STRAIT.
CANADA.
DNC 28.
1. MCTS IQALUIT REMOTE STATION CAMBRIDGE BAY
69-07.00N 105-01.00W OFF AIR UNTIL 02 NOV.
2. CANCEL THIS MSG 030001Z NOV 24.
152234Z OCT 24
HYDROARC 257/24(GEN).
WORLD MAGENETIC MODEL (WMM) 2025 UPDATE
1. AS PART OF THE REGULAR UPDATE CYCLE OF THE
WORLD MAGNETIC MODEL (WMM),
THE NATIONAL OCEANOGRAPHIC & ATMOSPHERIC
ADMINISTRATION (NOAA)/ NATIONAL CENTERS
FOR ENVIRONMENTAL INFORMATION (NCEI), IN
COLLABORATION WITH THE BRITISH GEOLOGICAL
SURVEY (BGS), WILL RELEASE THE WMM2025
ON 17 DEC 24. THE CURRENT 2020 WMM
WILL EXPIRE ON 31 DEC 24.
2. IN ORDER TO AVOID ANY MODEL PERFORMANCE
DEGRADATION, USERS ARE RECOMMENDED TO
DOWNLOAD AND INSTALL THE WMM2025 MODEL
COEFFICIENTS, WHICH WILL BE PUBLISHED ONLINE
AT HTTPS://WWW.NCEI.NOAA.GOV/PRODUCTS/
WORLD-MAGNETIC-MODEL.
3. THE WMM IS THE STANDARD MODEL USED BY
THE U.S. DEPARTMENT OF DEFENSE (DOD),
CIVIL AGENCIES, THE NORTH ATLANTIC TREATY
ORGANIZATION (NATO), AND THE INTERNATIONAL
HYDROGRAPHIC ORGANIZATION, OR A
WIDE-RANGE OF POSITIONING AND NAVIGATION
SYSEM APPLICATIONS THAT USE THE
GEOMAGNETIC FIELD, INCLUDING ALL AIRCRAFT,
SHIPS, SUBMARINES, AND GPS UNITS.
4. FOR SOME USERS THAT HAVE REQUESTED A WMM
WITH PERFORMANCE THAT EXCEEDS MILITARY
REQUIREMENTS, NGA HAS ADDED AN ADVANCED
WMMHR2025 (HIGH RESOLUTION) TO THIS WMM
RELEASE CYCLE. WMMHR2025 IS FOR THOSE SYSTEMS
THAT CAN ACCEPT ADDITIONAL MODEL COEFFICIENTS
BEYOND THOSE PROVIDED IN ALL PRIOR WMM RELEASES.
NGA ENCOURAGES, BUT DOES NOT REQUIRE,
USERS TO UPDATE THEIR SYSTEMS WITH
WMMHR2025 WHEN THIS IS RELEASED. FOR TEST
PURPOSES, A BETA VERSION (WMMHR2020)
CAN BE DOWNLOADED FROM THE NOAA AND
NGA WMM OPENSOURCE WEBSITES BEGINNING 9/1/2024.
SEE HTTPS://WWW.NGDC.NOAA.GOV/GEOMAG/
DATA/WMM/WMMHR/ FOR A COMPLETE DESCRIPTION.
NGA REQUESTS USERS PROVIDE FEEDBACK ON
BETA PERFORMANCE TO NOAA
EMAIL:GEOMAG.MODELS@NOAA.GOV.
5. CANCEL THIS MSG 010001Z JAN 25.
040125Z OCT 24
HYDROARC 249/24(15).
LANCASTER SOUND.
CANADA.
DNC 28.
UNCHARTED ROCK REPORTED IN
74-31.01N 082-27.51W.
050024Z SEP 24
HYDROARC 232/24(15).
CANADA.
DNC 28.
8.9 METER DEPTH REPORTED IN 72-38.07N 095-26.90W.
050016Z SEP 24
HYDROARC 231/24(15).
CANADA.
DNC 28.
DEPTHS REPORTED:
A. 2.3 METERS IN 78-55.05N 086-37.13W.
B. 5.9 METERS IN 78-54.25N 086-35.83W.
C. 15 METERS IN 78-53.99N 086-37.85W.
041438Z SEP 24
HYDROARC 230/24(15).
CANADA.
DNC 28.
CACHE POINT RACON 68-39.00N 113-35.00W
UNRELIABLE.
250557Z AUG 24
HYDROARC 218/24(16).
CHUKCHI SEA.
DNC 27.
SEDIMENT TRAP, TOP FLOAT 35 METERS,
ESTABLISHED IN 74-31.37N 161-55.88W.
220920Z AUG 24
HYDROARC 210/24(42).
KARA SEA.
RUSSIA.
DNC 22.
SCIENTIFIC MOORING, AT DEPTH FIVE METERS,
ESTABLISHED IN 71-17.74N 065-10.78E.
ONE MILE BERTH REQUESTED.
121152Z AUG 24
HYDROARC 187/24(15).
CORONATION GULF.
CANADA.
DNC 28.
SUB-SURFACE SCIENTIFIC MOORING, AT DEPTH
16 METERS, TOP FLOAT ONE METER ABOVE SEABED,
ESTABLISHED IN 68-14.66N 113-19.90W.
081455Z AUG 24
HYDROARC 180/24(42).
KARA SEA.
RUSSIA.
DNC 22.
UNDERWATER OPERATIONS IN PROGRESS UNTIL
FURTHER NOTICE BY M/V PETR KOTTSOV,
M/V IVAN PETROV, AND M/V YURI BABAEV
IN AREA BOUND BY
72-09.81N 073-09.94E, 72-25.90N 073-49.59E,
72-33.32N 073-47.21E, 72-33.34N 073-48.06E,
72-26.01N 073-50.64E, 72-09.65N 073-10.59E.
WIDE BERTH REQUESTED.
021606Z AUG 24
HYDROARC 165/24(42).
KARA SEA.
RUSSIA.
DNC 22.
SURVEY OPERATIONS 08 AUG UNTIL FURTHER NOTICE
BY M/V AKVAMARIN TOWING 1000 METER LONG CABLE
IN AREA BOUND BY
72-54.70N 066-11.90E, 72-50.70N 067-06.00E,
72-31.00N 067-06.00E, 72-18.50N 067-21.00E,
72-07.70N 066-32.70E, 72-02.60N 066-09.20E,
72-03.10N 065-10.60E, 72-04.40N 063-01.00E,
72-32.50N 063-28.60E, 72-26.70N 064-54.10E,
72-40.80N 065-10.10E, 72-40.50N 065-44.30E .
TWO MILE BERTH REQUESTED.
050856Z JUN 24
HYDROARC 97/24(42).
KARA SEA.
RUSSIA.
DNC 22.
DANGEROUS WRECK IN 73-09.66N 080-18.83E.
270133Z OCT 23
HYDROARC 272/23(15).
LANCASTER SOUND.
CANADA.
DNC 28.
13.9 METER SHOAL IN 73-43.41N 081-13.62W.
250632Z OCT 23
HYDROARC 270/23(16).
BEAUFORT SEA.
ALASKA.
DNC 27.
1. SCIENTIFIC MOORINGS ESTABLISHED IN:
A. 71-47.78N 155-20.81W, TOP FLOAT 15 METERS.
B. 71-44.07N 155-09.83W, TOP FLOAT 20 METERS.
C. 71-40.38N 154-59.98W, TOP FLOAT 19 METERS.
2. CANCEL HYDROARC 271/22.
250551Z OCT 23
HYDROARC 269/23(16).
CHUKCHI SEA.
DNC 27.
SCIENTIFIC MOORING, TOP FLOAT 35 METERS,
ESTABLISHED IN 74-31.38N 161-56.54W.
220655Z AUG 23
HYDROARC 178/23(42).
KARA SEA.
RUSSIA.
DNC 22.
1. BOTTOM SCIENTIFIC MOORING ESTABLISHED
UNTIL FURTHER NOTICE IN 71-33.88N 072-09.40E.
200 METER BERTH REQUESTED.
2. CANCEL HYDROARC 175/23.
150429Z AUG 23
HYDROARC 163/23(15).
BEAUFORT SEA.
CANADA.
DNC 27.
RACON AT PULLEN ISLAND LIGHT
69-46.60N 134-24.40W INOPERATIVE.
090827Z AUG 23
HYDROARC 157/23(16).
BEAUFORT SEA.
CHUKCHI SEA.
ALASKA.
DNC 27.
SCIENTIFIC MOORINGS ESTABLISHED IN:
A. 71-18.16N 155-42.37W.
B. 71-22.90N 155-36.16W.
C. 71-24.81N 156-26.47W.
D. 71-27.43N 156-36.35W.
090818Z AUG 23
HYDROARC 156/23(16).
CHUKCHI SEA.
ALASKA.
DNC 27.
SCIENTIFIC MOORINGS ESTABLISHED IN:
A. 70-43.82N 160-22.05W.
B. 70-40.80N 160-12.69W.
C. 70-39.28N 160-06.17W.
090810Z AUG 23
HYDROARC 155/23(16).
CHUKCHI SEA.
ALASKA.
DNC 27.
SCIENTIFIC MOORINGS ESTABLISHED IN:
A. 68-08.94N 166-01.68W.
B. 68-20.82N 166-53.94W.
260812Z SEP 22
HYDROARC 293/22(15).
MCCLINTOCK CHANNEL.
CANADA.
DNC 28.
SHOALS REPORTED IN:
A. 31.7 METERS, 70-03.31N 097-42.44W.
B. 20.9 METERS, 70-03.00N 097-19.39W.
C. 20.2 METERS, 69-57.60N 097-58.25W.
D. 23.4 METERS, 69-53.97N 097-44.35W.
082310Z SEP 22
HYDROARC 262/22(15).
CANADA.
DNC 28.
14 METER SHOAL IN 68-36.32N 095-21.40W.
060434Z SEP 22
HYDROARC 260/22(15).
QUEEN MAUD GULF.
CANADA.
DNC 28.
16 METER SHOAL IN 68-19.50N 100-46.86W.
240904Z AUG 22
HYDROARC 235/22(15).
QUEEN MAUD GULF.
CANADA.
DNC 28.
SUB-SURFACE SCIENTIFIC MOORINGS ESTABLISHED:
A. 68-39.32N 103-00.52W, TOP FLOAT FOUR METERS.
B. 68-39.93N 103-00.88W, TOP FLOAT 20 METERS.
C. 68-53.41N 101-31.16W, TOP FLOAT FOUR METERS.
210502Z AUG 22
HYDROARC 228/22(15).
CORONATION GULF.
CANADA.
DNC 28.
SCIENTIFIC MOORING, TOP FLOAT 15 METERS BELOW
SURFACE, ESTABLISHED IN:
A. 67-40.09N 107-57.28W.
B. 67-40.36N 107-57.86W.
191804Z AUG 22
HYDROARC 224/22(15).
CORONATION GULF.
CANADA.
DNC 28.
SCIENTIFIC MOORING, TOP FLOAT 15 METERS BELOW
SURFACE, ESTABLISHED IN 68-20.75N 112-21.12W.
191804Z AUG 22
HYDROARC 223/22(15).
CORONATION GULF.
CANADA.
DNC 28.
SCIENTIFIC MOORING, TOP FLOAT 15 METERS BELOW
SURFACE, ESTABLISHED IN 67-53.89N 111-21.21W.
111643Z AUG 22
HYDROARC 198/22(15).
BEAUFORT SEA.
CANADA.
DNC 27.
RACON AT SHINGLE POINT BEACON
69-00.00N 137-34.50W INOPERATIVE.