HYDROARC 25/2023 (GEN)1. HYDROARC WARNINGS IN FORCE AS OF 101518Z MAR.
   ALL THE INFORCE WARNINGS ARE LISTED HERE.
   24/2023, 23/2023, 22/2023, 20/2023, 19/2023.
   359/2022, 325/2022, 293/2022, 291/2022, 283/2022,
   271/2022, 262/2022, 260/2022, 251/2022, 247/2022,
   235/2022, 228/2022, 224/2022, 223/2022, 209/2022,
   198/2022, 181/2022, 175/2022, 152/2022, 151/2022.
   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 21/23.
101524Z MAR 2023 NGA NAVSAFETY 0/23 101518Z MAR 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 325/2022 (15)CANADA.
DNC 28.
SHOALS REPORTED IN:
A. 13.2 METERS, 68-25.76N 096-37.35W.
B. 13.7 METERS, 68-25.52N 096-35.65W.
180408Z OCT 2022 NAVAREA XVIII 122/22 172102Z OCT 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 251/2022 (15)AMUNDSEN GULF.
CANADA.
DNC 27.
22 METER DEPTH REPORTED IN 69-39.05N 120-45.29W.
301641Z AUG 2022 NAVAREA XVII 66/22 301501Z AUG 22.

HYDROARC 247/2022 (42)KARA SEA.
RUSSIA.
DNC 22.
SCIENTIFIC MOORING, FIVE METERS BELOW
SURFACE, ESTABLISHED IN 71-17.69N 065-10.54E.
ONE MILE BERTH REQUESTED.
290936Z AUG 2022 RUSSIA COASTAL WARNING WEST 78/22 290855Z AUG 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 209/2022 (42)KARA SEA.
RUSSIA.
DNC 22.
SCIENTIFIC MOORING, LEAST DEPTH 5 METERS,
ESTABLISHED IN 72-18.54N 067-21.28E.
ONE MILE BERTH REQUESTED.
161453Z AUG 2022 RUSSIA COASTAL WARNING WEST 71/22 161414Z 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 181/2022 (42)BARENTS SEA.
DNC 22.
SCIENTIFIC MOORING, AT DEPTH 15 METERS,
ESTABLISHED UNTIL FURTHER NOTICE IN
74-45.96N 044-55.44E.
ONE MILE BERTH REQUESTED.
011832Z AUG 2022 NAVAREA XX 121/22 011816Z 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 151/2022 (43)BARENTS SEA.
SVALBARD.
DNC 22.
SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY
M/V RAMFORD HYPERION TOWING 12 4050 METER LONG CABLES
IN AREA BOUND BY
73-44.50N 023-04.50E, 73-41.60N 025-52.40E,
73-13.10N 025-45.00E, 73-15.80N 023-01.40E.
FOUR MILE BERTH REQUESTED.
110030Z JUL 2022 NAVAREA XIX 91/22 102138Z 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.