留在北海道岛另一侧的次中心演化成了极地低压

...STORM WARNING...
.FROM 45N TO 49N W OF 163E WINDS 35 TO 50 KT. SEAS 10 TO 18 FT.
ELSEWHERE W OF A LINE FROM 34N160E TO 41N168E TO 48N166E TO
51N161E WINDS 25 TO 40 KT. SEAS 9 TO 16 FT.
.24 HOUR FORECAST LOW 51N161E 957 MB. WITHIN 360 NM S AND 300 NM
SE QUADRANTS WINDS 40 TO 55 KT. SEAS 18 TO 35 FT. ELSEWHERE W OF
A LINE FROM 57N175E TO 50N173W TO 46N171W TO 40N178E TO 32N163E
WINDS 30 TO 45 KT. SEAS 10 TO 25 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 50N169E 969 MB AND
AND SECOND LOW 58N177W 973 MB AND A THIRD LOW 55N166W 980 MB.
WITHIN 360 NM S SEMICIRCLE AND 300 NM W QUADRANT OF MAIN LOW
WINDS 35 TO 50 KT. SEAS 18 TI 33 FT. ELSEWHERE WITHIN 240 NM W
AND NW QUADRANTS OF SECOND LOW WINDS 30 TO 45 KT. SEAS 9 TO 17
FT. ELSEWHERE W OF A LINE FROM 36N178W TO 50N155W TO 56N158W TO
63N174W WINDS 25 TO 40 KT. SEAS 9 TO 24 FT.

STORM WARNING.
DEVELOPING LOW 974 HPA
AT 46N 149E SEA AROUND KURILS MOVING NE 35 KNOTS.
WINDS 30 TO 55 KNOTS WITHIN 1300 MILES OF LOW SOUTHWEST SEMICIRCLE
AND 600 MILES ELSEWHERE.
EXPECTED WINDS 30 TO 55 KNOTS WITHIN 1400 MILES OF LOW SOUTH
SEMICIRCLE AND 1000 MILES ELSEWHERE FOR NEXT 24 HOURS.
FORECAST POSITION FOR 171800UTC AT 50N 157E WITH UNCERTAINTY OF 85
MILES RADIUS.
FORECAST POSITION FOR 180600UTC AT 51N 161E WITH UNCERTAINTY OF 130
MILES RADIUS.
ANOTHER LOW 980 HPA AT 47N 157E
MOVING NE 35 KNOTS.

STORM WARNING.

DEVELOPING LOW 968 HPA

AT 48N 154E SEA AROUND KURILS MOVING NE 35 KNOTS.

WINDS 30 TO 55 KNOTS WITHIN 1400 MILES OF LOW SOUTHWEST SEMICIRCLE

AND 700 MILES ELSEWHERE.

EXPECTED WINDS 30 TO 55 KNOTS WITHIN 1400 MILES OF LOW SOUTHWEST

SEMICIRCLE AND 900 MILES ELSEWHERE FOR NEXT 24 HOURS.

FORECAST POSITION FOR 180000UTC AT 50N 159E WITH UNCERTAINTY OF 85

MILES RADIUS.

FORECAST POSITION FOR 181200UTC AT 52N 164E WITH UNCERTAINTY OF 130

MILES RADIUS.

...STORM WARNING...

.LOW W OF AREA NEAR 48N153E 968 MB MOVING NE 15 KT. WITHIN 420 NM

NE QUADRANT WINDS 35 TO 50 KT. SEAS 12 TO 20 FT. ELSEWHERE WITHIN

960 NM E AND SE QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 18 FT.

.12 HOUR FORECAST LOW W OF AREA NEAR 49N158E 960 MB. WITHIN 300

NM SE QUADRANT WINDS 40 TO 55 KT. SEAS 21 TO 34 FT.

.24 HOUR FORECAST LOW 51N161E 957 MB. WITHIN 480 NM S AND SE

QUADRANTS AND FROM 55N TO 58N W OF 179E WINDS 40 TO 55 KT. SEAS

22 TO 36 FT. ELSEWHERE WITHIN 780 NM N...1200 NM E...AND 1080 NM

S QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 24 FT.

.48 HOUR FORECAST LOW 51N172E 973 MB. WITHIN 540 NM SE...840 NM

S...AND 420 NM W AND NW QUADRANTS WINDS 30 TO 45 KT. SEAS 16 TO

30 FT.

...STORM WARNING...

.LOW W OF AREA NEAR 50N156E 963 MB MOVING NE 15 KT. WITHIN 480 NM

NE AND 420 NM SE QUADRANTS WINDS 35 TO 50 KT. SEAS 16 TO 26 FT.

ELSEWHERE WITHIN 660 NM N...960 NM E...AND 1140 NM S QUADRANTS

WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.

.24 HOUR FORECAST LOW 51N165E 963 MB. WITHIN 420 NM S AND SE

QUADRANTS AND FROM 56N TO 59N W OF 178W WINDS 40 TO 55 KT. SEAS

22 TO 36 FT. ELSEWHERE WITHIN 720 NM N...1200 NM E...1080 NM

S...AND 300 NM W QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 24 FT.

.48 HOUR FORECAST LOW 53N177E 973 MB. WITHIN 300 NM SW SEMICIRCLE

WINDS 40 TO 50 KT. SEAS 18 TO 30 FT. ELSEWHERE WITHIN 600 NM

E...960 NM S AND SW...AND 420 NM NW QUADRANTS WINDS 25 TO 40 KT.

SEAS 12 TO 26 FT.

STORM WARNING.

DEVELOPING LOW 964 HPA

AT 50N 157E SEA AROUND KURILS MOVING ENE 25 KNOTS.

OCCLUDED FRONT FROM 50N 157E TO 52N 162E 51N 167E 48N 171E.

WARM FRONT FROM 48N 171E TO 45N 174E 42N 176E 38N 180E.

COLD FRONT FROM 48N 171E TO 43N 168E 40N 164E 37N 158E 34N 156E 32N

153E 29N 150E.

WINDS 30 TO 55 KNOTS WITHIN 1400 MILES OF LOW SOUTHWEST SEMICIRCLE

AND 800 MILES ELSEWHERE.

EXPECTED WINDS 30 TO 55 KNOTS WITHIN 1400 MILES OF LOW SOUTHWEST

SEMICIRCLE AND 800 MILES ELSEWHERE FOR NEXT 24 HOURS.

FORECAST POSITION FOR 180600UTC AT 51N 162E WITH UNCERTAINTY OF 50

MILES RADIUS.

FORECAST POSITION FOR 181800UTC AT 52N 166E WITH UNCERTAINTY OF 85

MILES RADIUS.

STORM WARNING.
DEVELOPED LOW 966 HPA
AT 50N 159E SEA EAST OF KURILS MOVING NE 20 KNOTS.
OCCLUDED FRONT FROM 50N 159E TO 53N 160E 52N 170E 49N 176E.
WARM FRONT FROM 49N 176E TO 47N 180E 40N 178W 37N 176W.
COLD FRONT FROM 49N 176E TO 47N 177E 41N 171E 38N 165E 37N 162E 31N
157E 27N 151E.
WINDS 30 TO 55 KNOTS WITHIN 1500 MILES OF LOW SOUTHWEST SEMICIRCLE
AND 800 MILES ELSEWHERE.
EXPECTED WINDS 30 TO 55 KNOTS WITHIN 1500 MILES OF LOW SOUTHWEST
SEMICIRCLE AND 800 MILES ELSEWHERE FOR NEXT 24 HOURS.
FORECAST POSITION FOR 181200UTC AT 52N 164E WITH UNCERTAINTY OF 50
MILES RADIUS.
FORECAST POSITION FOR 190000UTC AT 52N 168E WITH UNCERTAINTY OF 85
MILES RADIUS.