SECURITY
WEATHER BULLETIN FOR METAREA XX
ISSUED BY THE ARCTIC AND ANTARCTIC RESEARCH INSTITUTE
ST PETERSBURG ON THE 27 APRIL 2026 AT 0600UTC
PART 1
AT 270600UTC
GALE WARNING
01240,01250
FROM 270600UTC TO 280600UTC
WINDS N/W N 18 TO 23 MS
17062
FROM 270900UTC TO 280600UTC
WINDS E N/E GUSTS 17 TO 20 MS
17064
FROM 270600UTC TO 280600UTC
WINDS N/E N GUSTS 17 TO 20 MS
17073
FROM 270600UTC TO 280600UTC
WINDS N N/W GUSTS 17 TO 22 MS
17090
FROM 270600UTC TO 271500UTC
WINDS E N/E GUSTS 17 TO 20 MS
FROM 271500UTC TO 280600UTC
WINDS N N/W GUSTS 17 TO 22 MS
PART 2
SYNOPSIS AT 270600UTC
HIGH 1033 HPA 76N 008W MOVING E 15 KMH WEAKENS
LOW 982 HPA 58N 040E MOVING N N/W 10 KMH DEEPENING
LOW 999 HPA 71N 045E MOVING S 20 KMH
LOW 984 HPA 66N 086E MOVING N/E 45 KMH DEEPENING
HIGH 1031 HPA 77N 163E STATIONARY WEAKENS
ICE AT 261200UTC
A3-A4
ICE NE TO 7950N 00818E, 7950N 01000E, 7949N 01102E,
7946N 01111E.
A4-B4
ICE E TO 7812N 01331E, 7745N 01329E, 7730N 01339E,
7719N 01346E, 7656N 01416E, 7626N 01607E,
7605N 01642E.
B4-B5
ICE N TO 7605N 01642E, 7611N 01747E, 7608N 01925E,
7619N 02000E, 7624N 02016E, 7622N 02106E,
7636N 02340E.
B5
ICE NE TO 7636N 02340E, 7543N 02347E, 7539N 02504E.
B5
ICE NW TO 7539N 02504E, 7548N 02538E, 7609N 02640E,
7643N 02723E, 7701N 03000E.
01020
ICE NW TO 7701N 03000E, 7701N 03007E, 7727N 03052E,
7733N 03211E, 7744N 03325E.
01020
ICE E TO 7744N 03325E, 7717N 03426E, 7701N 03425E,
7623N 03544E.
01020-01010
ICE N TO 7623N 03544E, 7628N 03652E, 7623N 03811E,
7637N 03947E, 7643N 04200E, 7723N 04514E,
7730N 04851E, 7733N 05000E, 7738N 05215E,
7756N 05430E, 7754N 05611E, 7733N 05825E,
7747N 06102E, 7738N 06310E.
01010-01120-01110-01130
ICE E TO 7738N 06310E, 7700N 06301E, 7654N 06150E,
7709N 05912E, 7635N 05802E, 7613N 05214E,
7527N 05207E, 7500N 05144E, 7438N 05127E,
7400N 05157E, 7339N 05148E, 7334N 05054E,
7313N 05016E, 7152N 05000E, 7136N 04957E,
7133N 05000E, 7104N 05040E, 7007N 05438E,
6953N 05425E.
01130-01140-01110
ICE S TO 6953N 05425E, 6939N 05251E, 6929N 05255E,
6914N 05300E, 6854N 05135E, 6902N 05100E,
6847N 05007E, 6838N 04941E, 6816N 04935E,
6810N 04857E, 6807N 04854E, 6821N 04833E,
6830N 04803E, 6822N 04711E, 6832N 04638E,
6843N 04640E, 6846N 04640E, 6840N 04506E,
6835N 04500E.
01140
ICE N TO 6910N 05019E, 6909N 05024E, 6904N 05029E,
6856N 05012E, 6851N 04956E, 6848N 04941E,
6841N 04937E, 6837N 04921E, 6838N 04828E,
6843N 04805E, 6850N 04757E, 6855N 04813E.
PART 3
FORECAST FROM 270600UTC TO 280600UTC
01010
WINDS E S/E 8 TO 13 MS
TEMP MINUS 4 TO MINUS 8 DEGREES
VIS 6 TO 10 KM IN SNOW 1 TO 2 KM SOMETIMES SNOW
SEAS 1.0 TO 1.5 M
01020
WINDS N N/E 11 TO 16 MS
TEMP MINUS 4 TO MINUS 8 DEGREES
VIS 6 TO 10 KM IN SNOW 1 TO 2 KM SOMETIMES SNOW
SLOWLY ICE ACCRETION SHIPS
SEAS 1.0 TO 2.0 M
01100, 01110
WINDS N N/E 11 TO 16 MS
TEMP MINUS 2 TO PLUS 2 DEGREES
VIS 6 TO 10 KM IN SNOW 1 TO 2 KM SOMETIMES SNOW
SEAS 1.5 TO 2.0 M
01120
WINDS E S/E 9 TO 14 MS
TEMP MINUS 2 TO PLUS 2 DEGREES
VIS 6 TO 10 KM IN SNOW 1 TO 2 KM SOMETIMES SNOW
SEAS 1.0 TO 2.0 M
01130
WINDS S/W W 7 TO 12 MS
TEMP MINUS 3 TO PLUS 2 DEGREES
VIS 3 TO 8 KM LOCALLY 0.3 TO 0.8 KM
LOCALLY PRECIPITATION FOG
01140
WINDS S/W S 7 TO 12 MS AFTER 271200UTC S S/E 7 TO 12 MS
TEMP 0 TO MINUS 5 DEGREES
VIS 3 TO 8 KM LOCALLY PRECIPITATION
01240, 01250
WINDS N/W N 18 TO 23 MS
TEMP MINUS 1 TO PLUS 2 DEGREES
VIS 6 TO 10 KM IN SNOW 1 TO 2 KM SOMETIMES SNOW
SEAS 1.5 TO 2.5 M
17021
WINDS W S/W 9 TO 14 MS AFTER 271800UTC S S/E 7 TO 12 MS
TEMP MINUS 4 TO PLUS 1 DEGREES
VIS 4 TO 9 KM LOCALLY 0.3 TO 0.8 KM LOCALLY SNOW FOG
17022
WINDS N N/W 9 TO 14 MS
TEMP MINUS 4 TO PLUS 1 DEGREES
VIS 4 TO 9 KM LOCALLY 0.3 TO 0.8 KM LOCALLY WEAK SNOW FOG
17023
WINDS W N/W 11 TO 16 MS AFTER 271500UTC S/W S 6 TO 11 MS
AFTER 272100UTC S S/E 7 TO 12 MCS
TEMP MINUS 3 TO PLUS 2 DEGREES
VIS 4 TO 9 KM LOCALLY 0.3 TO 0.8 KM LOCALLY SNOW FOG
17030
WINDS E N/E 9 TO 14 MS
TEMP MINUS 4 TO MINUS 9 DEGREES
VIS 4 TO 9 KM IN FOG 0.3 TO 0.8 KM LOCALLY FOG
17062
WINDS E N/E 11 TO 16 MS AFTER 270900UTC GUSTS 17 TO 20 MS
TEMP MINUS 5 TO MINUS 10 DEGREES
VIS 4 TO 9 KM
17063
WINDS N/E 9 TO 14 MS
TEMP MINUS 2 TO MINUS 7 DEGREES
VIS 3 TO 8 KM LOCALLY 0.5 TO 1.0 KM LOCALLY SNOW
17064
WINDS N/E N 11 TO 16 MS GUSTS 17 TO 20 MS
TEMP MINUS 3 TO MINUS 8 DEGREES
VIS 4 TO 9 KM
17071
WINDS N/E N 11 TO 16 MS AFTER 271200UTC N N/W 11 TO 16 MS
TEMP MINUS 1 TO MINUS 6 DEGREES
VIS 4 TO 9 KM IN SNOW 0.5 TO 1.0 KM LOCALLY SNOW
17073
WINDS N N/W 9 TO 14 MS GUSTS 17 TO 22 MS
TEMP MINUS 1 TO MINUS 6 DEGREES
VIS 3 TO 8 KM LOCALLY 0.3 TO 0.8 KM LOCALLY WEAK SNOW FOG
17090
WINDS E N/E 9 TO 14 MS GUSTS 17 TO 20 MS
AFTER 271500UTC N N/W 9 TO 14 MS GUSTS 17 TO 22 MS
TEMP MINUS 1 TO MINUS 6 DEGREES
VIS 4 TO 9 KM IN SNOW 0.5 TO 1.0 KM LOCALLY SNOW
NNNN