补充一下这个达到要求的系统
...HURRICANE FORCE WIND WARNING...
.LOW 48N165E 971 MB MOVING NE 40 KT. WITHIN 240 NM SW SEMICIRCLE
WINDS 55 TO 65 KT. SEAS 20 TO 30 FT. ELSEWHERE FROM 36N TO 52N W
OF 178E WINDS 25 TO 40 KT. SEAS 12 TO 18 FT.
.12 HOUR FORECAST LOW 49N175E 973 MB. WITHIN 420 NM S SEMICIRCLE
AND FROM 40N TO 46N BETWEEN 168W AND 179W WINDS 35 TO 50 KT. SEAS
20 TO 32 FT. ELSEWHERE W OF A LINE FROM 42N160E TO 36N179E TO
42N161W TO 50N173W TO 53N173E TO 55N167W TO 61N176W WINDS 20 TO
30 KT. SEAS 10 TO 15 FT.
.24 HOUR FORECAST LOW 52N172W 975 MB. WITHIN 540 NM S SEMICIRCLE
AND WITHIN 300 NM SE OF A LINE FROM 49N161W TO 41N173W WINDS 35
TO 45 KT. SEAS 20 TO 33 FT...HIGHEST SW OF CENTER. ELSEWHERE
WITHIN 600 NM N SEMICIRCLE AND FROM 38N TO 53N BETWEEN 150W AND
171E WINDS 20 TO 30 KT. SEAS 12 TO 20 FT.
48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 55N156W 975
MB. WITHIN 780 NM S SEMICIRCLE...WITHIN 240 NM N AND 600 NM NE
QUADRANTS WINDS 25 TO 40 KT. SEAS 15 TO 25 FT HIGHEST SW OF
CENTER. ELSEWHERE FROM 41N TO 64N BETWEEN 128W TO 173W WINDS 20
TO 30 KT. SEAS 9 TO 18 FT...HIGHEST SW OF CENTER.