HYDROARC 223/2023 (38)BAFFIN BAY.
GREENLAND.
DNC 28.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL
   FURTHER NOTICE BY M/V JOIDES RESOLUTION
   IN 74-29.55N 060-34.99W.
   TWO MILE BERTH REQUESTED.
2. CANCEL HYDROARC 209/23.
152230Z SEP 2023 NAVAREA XVIII 69/23 152201Z SEP 23.

HYDROARC 221/2023 (GEN)1. HYDROARC WARNINGS IN FORCE AS OF 151349Z SEP.
   ALL THE INFORCE WARNINGS ARE LISTED HERE.
   219/2023, 218/2023, 217/2023, 216/2023, 215/2023, 214/2023,
   212/2023, 210/2023, 209/2023, 208/2023, 205/2023, 200/2023,
   191/2023, 189/2023, 181/2023, 178/2023, 177/2023, 176/2023,
   164/2023, 163/2023, 162/2023, 157/2023, 156/2023, 155/2023,
   154/2023, 138/2023, 109/2023, 107/2023.
   359/2022, 293/2022, 291/2022, 283/2022, 271/2022, 262/2022,
   260/2022, 235/2022, 228/2022, 224/2022, 223/2022, 198/2022,
   175/2022, 152/2022.
   208/2021, 207/2021.
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 207/23 AND 220/23.
151359Z SEP 2023 NGA NAVSAFETY 0/23 151349Z SEP 23.

HYDROARC 219/2023 (96)CHUKCHI SEA.
RUSSIA.
DNC 27.
1. HAZARDOUS OPERATIONS 1400Z TO 0800Z
   DAILY 18 THRU 24 SEP IN AREA BOUND BY
   68-05.30N 176-23.00W, 67-54.80N 175-40.60W,
   67-51.00N 175-55.80W, 67-58.90N 176-27.40W.
2. CANCEL THIS MSG 250900Z SEP 23.
140843Z SEP 2023 NAVAREA XXI 49/23 140630Z SEP 23.

HYDROARC 215/2023 (41)ARCTIC.
LAPTEV SEA.
RUSSIA.
DNC 27.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
   0500Z TO 1700Z DAILY 18 THRU 20 SEP,
   ALTERNATE 0500Z TO 1700Z DAILY 21 THRU 23
   SEP IN AREA BOUND BY
   77-00.00N 130-00.00E, 77-00.00N 136-00.00E,
   76-00.00N 136-00.00E, 76-00.00N 130-00.00E.
2. CANCEL THIS MSG 231800Z SEP 23.
130726Z SEP 2023 NAVAREA XXI 47/23 121828Z SEP 23.

HYDROARC 212/2023 (15)CANADA.
DNC 28.
SHOALS REPORTED:
A. 12.4 METERS IN 69-53.47N 083-23.07W.
B. 15.9 METERS IN 69-53.14N 083-25.44W.
C. 22.6 METERS IN 69-51.02N 083-17.49W.
D. 23.4 METERS IN 69-50.76N 083-12.93W.
120305Z SEP 2023 NAVAREA XVIII 64/23 120246Z SEP 23.

HYDROARC 200/2023 (42)BARENTS SEA.
KARA SEA.
RUSSIA.
DNC 22.
1. HAZARDOUS OPERATIONS IN PROGRESS UNTIL
   301900Z SEP IN AREA BOUND BY
   74-00.00N 050-00.00E, 74-00.00N 059-34.00E,
   72-40.00N 052-32.00E, 72-40.00N 050-00.00E.
2. CANCEL THIS MSG 302000Z SEP 23.
041636Z SEP 2023 NAVAREA XX 128/23 041631Z SEP 23.

HYDROARC 191/2023 (16)BEAUFORT SEA.
ALASKA.
DNC 27.
CABLE OPERATIONS IN PROGRESS UNTIL FURTHER
NOTICE BY CABLESHIP IT INTEGRITY IN AREA WITHIN
FIVE MILES OF 70-55.40N 149-57.30W.
ONE MILE BERTH REQUESTED.
301350Z AUG 2023 IT INTEGRITY 0/23 301002Z AUG 23.

HYDROARC 189/2023 (42)BARENTS SEA.
KARA SEA.
RUSSIA.
DNC 22.
1. HAZARDOUS OPERATIONS 312100Z AUG TO 302100Z SEP
   IN AREA BOUND BY
   79-45.00N 063-00.00E, 79-30.00N 060-00.00E,
   77-00.00N 060-00.00E, 77-20.00N 069-00.00E.
2.CANCEL THIS MSG 302200Z SEP 23.
291858Z AUG 2023 NAVAREA XX 127/23 291844Z AUG 23.

HYDROARC 181/2023 (41)EAST SIBERIAN SEA.
LAPTEV SEA.
RUSSIA.
DNC 27.
SURVEY OPERATIONS 28 AUG UNTIL FURTHER NOTICE
BY M/V NIKOLAY TRUBYATCHINSKY TOWING 8500 METER
LONG CABLE IN AREA BOUND BY
74-33.70N 134-54.10E, 74-43.30N 138-36.40E,
74-53.90N 143-32.00E, 74-58.80N 147-21.60E,
75-00.80N 150-42.00E, 75-07.00N 151-03.00E,
74-05.70N 151-59.00E, 74-12.50N 153-04.70E,
75-20.00N 152-54.20E, 75-24.10N 153-09.50E,
75-50.40N 153-22.60E, 71-46.40N 158-35.70E,
71-42.00N 152-17.20E, 71-56.50N 150-08.40E,
72-16.60N 139-09.80E, 71-59.10N 136-21.80E,
72-23.10N 133-44.20E, 72-39.80N 134-09.80E,
73-44.80N 134-20.00E, 74-10.80N 135-00.30E.
SEVEN MILE BERTH REQUESTED.
231113Z AUG 2023 RUSSIA COASTAL WARNING EAST 8/23 231027Z AUG 23.

HYDROARC 178/2023 (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.
220705Z AUG 2023 RUSSIA COAST WEST 59/23 220615Z AUG 23.

HYDROARC 177/2023 (41)ARCTIC.
EAST SIBERIAN SEA.
RUSSIA.
DNC 27.
SURVEY OPERATIONS 28 AUG UNTIL FURTHER NOTICE
BY M/V GEOLOG DMITRIY NALIVKIN TOWING 8500 METER
LONG CABLE IN AREA BOUND BY
78-50.00N 171-46.00E, 75-12.00N 179-50.00E,
75-00.42N 179-57.76E, 75-02.80N 171-18.08E,
74-36.92N 171-08.58E, 75-50.42N 153-22.62E,
76-04.00N 154-03.00E, 76-35.00N 158-53.03E,
76-49.00N 159-09.00E, 76-48.00N 168-43.04E,
78-54.00N 167-37.00E.
SEVEN MILE BERTH REQUESTED.
211902Z AUG 2023 NAVAREA XXI 40/23 211830Z AUG 23.

HYDROARC 176/2023 (41)EAST SIBERIAN SEA.
DNC 27.
1. SURVEY OPERATIONS 29 AUG THRU 01 NOV
   BY M/V AKADEMIK NEMCHINOV AND
   M/V AKADEMIK PRIMAKOV TOWING 6500 METERS
   LONG CABLES IN AREAS BOUND BY:
   A. 73-45.63N 174-27.26E, 73-26.42N 174-39.58E,
      73-21.04N 172-59.62E, 73-39.91N 172-45.73E.
   B. 74-44.10N 173-04.17E, 74-16.34N 172-54.80E,
      74-18.71N 170-48.24E, 74-46.50N 170-53.89E.
   SEVEN MILE BERTH REQUESTED.
2. CANCEL THIS MSG 020001Z NOV 23.
211855Z AUG 2023 NAVAREA XXI 39/23 211829Z AUG 23.

HYDROARC 164/2023 (16)CHUKCHI SEA.
ALASKA.
DNC 27.
UNDERWATER OPERATIONS 20 AUG UNTIL FURTHER
NOTICE BY CABLESHIP IT INTREPID IN AREA BOUND BY
67-43.00N 164-34.00W, 67-04.00N 163-46.00W,
66-53.00N 162-38.00W, 66-13.00N 162-09.00W,
66-11.00N 163-12.00W.
TWO MILE BERTH REQUESTED.
150936Z AUG 2023 IT INTREPID 0/23 050152Z AUG 23.

HYDROARC 163/2023 (15)BEAUFORT SEA.
CANADA.
DNC 27.
RACON AT PULLEN ISLAND LIGHT
69-46.60N 134-24.40W INOPERATIVE.
150434Z AUG 2023 NAVAREA XVII 53/23 142302Z AUG 23.

HYDROARC 162/2023 (15)BEAUFORT SEA.
CANADA.
DNC 27.
BALLIE ISLAND RACON RELOCATED TO 70-37.65N 128-15.42W.
120247Z AUG 2023 NAVAREA XVII 52/23 120231Z AUG 23.

HYDROARC 157/2023 (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.
090828Z AUG 2023 NAVAREA XVII 50/23 090741Z AUG 23.

HYDROARC 156/2023 (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.
090819Z AUG 2023 NAVAREA XVII 49/23 090719Z AUG 23.

HYDROARC 155/2023 (16)CHUKCHI SEA.
ALASKA.
DNC 27.
SCIENTIFIC MOORINGS ESTABLISHED IN:
A. 68-08.94N 166-01.68W.
B. 68-20.82N 166-53.94W.
090814Z AUG 2023 NAVAREA XVII 48/23 090718Z AUG 23.

HYDROARC 154/2023 (15)CANADA.
DNC 28.
1. MCTS IQALUIT REMOTE STATION CAMBRIDGE BAY
   69-07.00N 105-01.00W MF AND HF SERVICES
   OFF AIR.
2. CANCEL HYDROARC 151/23.
090257Z AUG 2023 NAVAREA XVII 47/23 082300Z AUG 23.

HYDROARC 138/2023 (15)CANADA.
DNC 28.
MCTS IQALUIT REMOTE STATION RESOLUTE
74-45.00N 094-58.00W HF R/T SERVICES OFF AIR.
240309Z JUL 2023 NAVAREA XVII 43/23 232200Z JUL 23.

HYDROARC 109/2023 (15)CANADA.
DNC 28.
MCTS IQALUIT REMOTE STATION RESOLUTE
74-45N 094-58W HF AND DSC SERVICES OFF AIR.
120256Z JUN 2023 NAVAREA XVIII 33/23 120151Z JUN 23.

HYDROARC 107/2023 (15)CANADA.
DNC 27.
MCTS IQALUIT REMOTE STATION INUVIK
68-19.00N 133-35.00W OFF AIR.
111520Z JUN 2023 NAVAREA XVII 32/23 111441Z JUN 23.

HYDROARC 359/2022 (42)BARENTS SEA.
DNC 22.
AUTONOMOUS BUOY STATION ESTABLISHED
IN 73-13.44N 042-16.80E.
ONE MILE BERTH REQUESTED.
120050Z NOV 2022 NAVAREA XX 208/22 112104Z NOV 22.

HYDROARC 293/2022 (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.
260815Z SEP 2022 NAVAREA XVIII 99/22 260400Z SEP 22.

HYDROARC 291/2022 (15)LANCASTER SOUND.
CANADA.
DNC 28.
SCIENTIFIC MOORINGS ESTABLISHED:
A. 74-36.37N 091-15.05W, TOP FLOAT 147 METERS.
B. 74-36.27N 091-15.73W, TOP FLOAT 59 METERS.
C. 74-36.24N 091-15.17W, TOP FLOAT 44 METERS.
D. 74-04.85N 090-01.25W, TOP FLOAT 32 METERS.
E. 74-12.57N 090-49.64W, TOP FLOAT 246 METERS.
F. 74-11.87N 090-49.04W, TOP FLOAT 26 METERS.
G. 74-35.73N 091-08.05W, TOP FLOAT 72 METERS.
H. 74-12.67N 090-46.24W, TOP FLOAT 61 METERS.
I. 74-11.89N 090-46.29W, TOP FLOAT 36 METERS.
232233Z SEP 2022 NAVAREA XVIII 97/22 231734Z SEP 22.

HYDROARC 283/2022 (41)EAST SIBERIAN SEA.
DNC 27.
1. AUTONOMOUS BUOY STATIONS ESTABLISHED IN:
   A. 71-53.46N 170-56.43E.
   B. 72-29.45N 176-20.93E.
   C. 74-53.32N 175-33.09E.
   D. 75-00.89N 171-49.21E.
   E. 74-54.33N 175-32.32E.
   F. 75-02.01N 171-51.80E.
   TWO MILE BERTH REQUESTED.
2. CANCEL HYDROARC 187/22.
210529Z SEP 2022 NAVAREA XXI 50/22 202357Z SEP 22.

HYDROARC 271/2022 (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.
   D. 72-28.37N 155-24.17W, TOP FLOAT 50 METERS.
2. CANCEL HYDROARC 258/22.
111054Z SEP 2022 NAVAREA XVII 72/22 111047Z SEP 22.

HYDROARC 262/2022 (15)CANADA.
DNC 28.
14 METER SHOAL IN 68-36.32N 095-21.40W.
082312Z SEP 2022 NAVAREA XVIII 90/22 082302Z SEP 22.

HYDROARC 260/2022 (15)QUEEN MAUD GULF.
CANADA.
DNC 28.
16 METER SHOAL IN 68-19.50N 100-46.86W.
060435Z SEP 2022 NAVAREA XVIII 88/22 060421Z SEP 22.

HYDROARC 235/2022 (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.
240925Z AUG 2022 NAVAREA XVIII 79/22 240900Z AUG 22.

HYDROARC 228/2022 (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.
210503Z AUG 2022 NAVAREA XVIII 71/22 210402Z AUG 22.

HYDROARC 224/2022 (15)CORONATION GULF.
CANADA.
DNC 28.
SCIENTIFIC MOORING, TOP FLOAT 15 METERS BELOW
SURFACE, ESTABLISHED IN 68-20.75N 112-21.12W.
191808Z AUG 2022 NAVAREA XVIII 70/22 191742Z AUG 22.

HYDROARC 223/2022 (15)CORONATION GULF.
CANADA.
DNC 28.
SCIENTIFIC MOORING, TOP FLOAT 15 METERS BELOW
SURFACE, ESTABLISHED IN 67-53.89N 111-21.21W.
191806Z AUG 2022 NAVAREA XVIII 69/22 191739Z AUG 22.

HYDROARC 198/2022 (15)BEAUFORT SEA.
CANADA.
DNC 27.
RACON AT SHINGLE POINT BEACON
69-00.00N 137-34.50W INOPERATIVE.
111644Z AUG 2022 NAVAREA XVII 58/22 111400Z AUG 22.

HYDROARC 175/2022 (42)KARA SEA.
DNC 22.
SUB-SURFACE SCIENTIFIC MOORING, AT DEPTH
95 METERS, ESTABLISHED UNTIL FURTHER NOTICE
IN 73-15.78N 065-32.05E.
WIDE BERTH REQUESTED.
250950Z JUL 2022 RUSSIA COAST WEST 46/22 250926Z JUL 22.

HYDROARC 152/2022 (42)KARA SEA.
DNC 22.
SUB-SURFACE SCIENTIFIC MOORING, LEAST DEPTH
15 METERS, ESTABLISHED UNTIL FURTHER NOTICE
IN 73-00.82N 066-03.29E.
WIDE BERTH REQUESTED.
111551Z JUL 2022 RUSSIA COASTAL WARNING WEST 35/22 111536Z JUL 22.

HYDROARC 208/2021 (15)QUEEN MAUD GULF.
CANADA.
DNC 28.
13.7 METER SHOAL IN 69-01.48N 100-58.36W.
022338Z SEP 2021 NAVAREA XVIII 85/21 022337Z SEP 21.

HYDROARC 207/2021 (15)QUEEN MAUD GULF.
CANADA.
DNC 28.
1. 23.8 METER SHOAL IN 68-58.95N 101-08.32W.
2. CANCEL HYDROARC 206/21.
022318Z SEP 2021 NAVAREA XVIII 84/21 022309Z SEP 21.