alu

  三級颶風  
編號：01 C
名稱：Iona

  基本資料  
擾動編號日期：2025 年 07 月 25 日 20 時
命名日期　　：2025 年 07 月 27 日 20 時
撤編日期　　：2025 年 08 月 04 日 20 時
登陸地點　　：無

  巔峰時期資料  
近中心最強風速
中太平洋颶風中心(CPHC)：110 kts ( Cat.3 )
海平面最低氣壓 ：957 毫巴

  過去路徑圖   - 來源：維基百科
  擾動編號資料  
EP, 97, 2025072512,   , BEST,   0, 106N, 1377W,  25, 1009, DB,  34, NEQ,








Tropical Weather Outlook Text        Tropical Weather Discussion
ZCZC MIATWOEP ALL
TTAA00 KNHC DDHHMM

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Fri Jul 25 2025

For the eastern and central North Pacific east of 180 longitude:

1. Well Southeast of the Hawaiian Islands(EP97):
An area of low pressure located well southeast of the Hawaiian
Islands is producing a large area of showers and thunderstorms.  
Some gradual development of this system is possible, and a tropical
depression could form this weekend or early next week as it
moves generally westward at 10 to 15 mph across the far western
portion of the eastern Pacific and into the Central Pacific basin.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 7 days...medium...60 percent.

2. Central East Pacific:
An area of low pressure is forecast to form offshore of the
southwestern coast of Mexico early next week. Thereafter,
environmental conditions appear conducive for some development as
the system moves generally west-northwestward at 10 to 15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...low...30 percent.



Forecaster Kelly
以上資料來自：CPHC、颱風論壇整理製作

alu

這到底是跨區改編號，還是從編

基本資料  
編號　　　　：90 C
擾動編號日期：2025 年 07 月 25 日 20 時
撤編日期　　：2025 年 07 月 00 日 00 時
EP, 97, 2025072512,   , BEST,   0, 106N, 1377W,  25, 1009, DB,  34, NEQ,









Tropical Weather Outlook Text       
ZCZC HFOTWOCP ALL
TTAA00 PHFO DDHHMM

Tropical Weather Outlook
NWS Central Pacific Hurricane Center Honolulu HI
Issued by NWS National Hurricane Center Miami FL
800 AM HST Sat Jul 26 2025

For the central North Pacific...between 140W and 180W:

1. Eastern portion of Central Pacific (CP90):
Showers and thunderstorms remain limited and disorganized in
association with an area of low pressure located about 1000 miles
east-southeast of the Hawaiian Islands. Some gradual development of
this system is possible, and a tropical depression could form
before it moves into less conducive environmental conditions by
the middle of next week. This system is forecast to move westward
during the next several days well south of the Hawaiian Islands.
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 7 days...medium...60 percent.

2. Western East Pacific:
A trough of low pressure centered a little more than 1500 miles
east-southeast of the Hawaiian Islands is producing a large area of
disorganized showers and thunderstorms. Some slow development of
this system is possible as it moves generally westward during the
next several days.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...low...20 percent.



Forecaster Cangialosi

king111807

NHC展望提升至60%

1. Eastern portion of Central Pacific (CP90):
Showers and thunderstorms have become slightly better organized in
association with an area of low pressure located about 950 miles
southeast of the Hawaiian Islands. Additional development of this
system is expected as it moves generally westward staying well south
of the Hawaiian Islands, and a short-lived tropical depression is
likely to form during the next few days.
* Formation chance through 48 hours...medium...60 percent.
* Formation chance through 7 days...high...70 percent.

king111807

NHC評級提升至High，80%

1. Eastern portion of the Central Pacific (CP90):
Showers and thunderstorms associated with an area of low pressure
about 900 miles southeast of the Hawaiian Islands have become better
organized since earlier today. Additional development of this system
is expected and a tropical depression is likely to form later
tonight or Sunday as it moves generally westward around 10 mph, well
to the south of the Hawaiian Islands.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 7 days...high...80 percent.

king111807

JTWC發布TCFA

WTPN21 PHNC 270200
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE FORMATION ALERT (INVEST 90C)//
RMKS/
1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN
140 NM EITHER SIDE OF A LINE FROM 10.9N 143.7W TO 11.2N 150.2W WITHIN
THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY ISSUANCE OF
NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME. WINDS IN THE AREA ARE
ESTIMATED TO BE 20 TO 25 KNOTS. METSAT IMAGERY AT 270200Z INDICATES THAT
A CIRCULATION CENTER IS LOCATED NEAR 10.9N 144.1W. THE SYSTEM IS MOVING
WESTWARD AT 11 KNOTS.
2. REMARKS: AN AREA OF CONVECTION (INVEST 90C) IS LOCATED NEAR 10.9N
144.1W, APPROXIMATELY 826NM SOUTHEAST OF HILO, HAWAII. ANIMATED
MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS A CONSOLIDATING LOW LEVEL
CIRCULATION CENTER (LLCC), OBSCURED BY PERSISTENT DEEP CONVECTION
BUILDING OVER THE CENTER. A RECENT 262231Z AMSR2 89 GHZ PARTIAL PASS
INDICATES A DEFINED LLCC WITH DEEP CONVECTION BUILDING OVER THE CENTER
WITH LOW-LEVEL BANDING. ENVIRONMENTAL ANALYSIS REVEALS A MARGINAL
ENVIRONMENT FOR DEVELOPMENT WITH GOOD EQUATORWARD UPPER-LEVEL OUTFLOW,
WARM SEA SURFACE TEMPERATURES (SST) OF 28-29C, OFFSET BY LOW TO MODERATE
VERTICAL WIND SHEAR (VWS) OF 15-20 KNOTS. DETERMINISTIC MODELS AND
ENSEMBLE MODELS ARE IN AGREEMENT THAT INVEST 90C WILL MOVE WESTWARD AS
IT CONSOLIDATE OVER THE NEXT 24 HOURS, HOWEVER GFS AND ECMWF ARE BOTH IN
AGREEMENT THAT 90C WILL REACH WARNING CRITERIA IN THE NEXT 48 HOURS.
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 20 TO 25 KNOTS. MINIMUM
SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1004 MB. THE POTENTIAL FOR
THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24
HOURS IS HIGH.
3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY
280200Z.//
NNNN

king111807

升格01C

WTPN31 PHNC 271000
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 01C (ONE) WARNING NR 001//
RMKS/
1. TROPICAL DEPRESSION 01C (ONE) WARNING NR 001   
   01 ACTIVE TROPICAL CYCLONE IN EASTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   270600Z --- NEAR 10.9N 145.1W
     MOVEMENT PAST SIX HOURS - 270 DEGREES AT 10 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   REPEAT POSIT: 10.9N 145.1W
    ---
   FORECASTS:
   12 HRS, VALID AT:
   271800Z --- 10.9N 146.7W
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 020 NM NORTHEAST QUADRANT
                            000 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            010 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 280 DEG/ 08 KTS
    ---
   24 HRS, VALID AT:
   280600Z --- 11.2N 148.2W
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 030 NM NORTHEAST QUADRANT
                            010 NM SOUTHEAST QUADRANT
                            010 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 280 DEG/ 09 KTS
    ---
   36 HRS, VALID AT:
   281800Z --- 11.5N 150.0W
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 050 KT WINDS - 015 NM NORTHEAST QUADRANT
                            000 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            010 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            020 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 270 DEG/ 11 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   290600Z --- 11.5N 152.2W
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 050 KT WINDS - 015 NM NORTHEAST QUADRANT
                            000 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            010 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            020 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   VECTOR TO 60 HR POSIT: 270 DEG/ 13 KTS
    ---
   60 HRS, VALID AT:
   291800Z --- 11.5N 154.8W
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            010 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   VECTOR TO 72 HR POSIT: 275 DEG/ 14 KTS
    ---
   72 HRS, VALID AT:
   300600Z --- 11.7N 157.7W
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   VECTOR TO 96 HR POSIT: 275 DEG/ 17 KTS
    ---
   LONG RANGE OUTLOOK:
    ---
   96 HRS, VALID AT:
   310600Z --- 12.2N 164.7W
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   VECTOR TO 120 HR POSIT: 275 DEG/ 17 KTS
    ---
   120 HRS, VALID AT:
   010600Z --- 12.9N 171.6W
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   POST-TROP/REMNT LOW
    ---
REMARKS:
271000Z POSITION NEAR 10.9N 145.6W.
27JUL25. TROPICAL DEPRESSION 01C (ONE), LOCATED APPROXIMATELY 783
NM SOUTHEAST OF HILO, HAS TRACKED WESTWARD AT 10 KNOTS OVER THE
PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 270600Z IS 1009 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 270600Z IS 7 FEET. NEXT WARNINGS AT
271600Z, 272200Z, 280400Z AND 281000Z.//
NNNN

king111807

命名Iona

WTPN31 PHNC 281000
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL STORM 01C (IONA) WARNING NR 005//
RMKS/
1. TROPICAL STORM 01C (IONA) WARNING NR 005   
   01 ACTIVE TROPICAL CYCLONE IN CENTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   280600Z --- NEAR 10.9N 148.8W
     MOVEMENT PAST SIX HOURS - 270 DEGREES AT 10 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            020 NM SOUTHWEST QUADRANT
                            050 NM NORTHWEST QUADRANT
   REPEAT POSIT: 10.9N 148.8W
    ---
   FORECASTS:
   12 HRS, VALID AT:
   281800Z --- 10.9N 150.6W
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 050 KT WINDS - 015 NM NORTHEAST QUADRANT
                            000 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            015 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 270 DEG/ 10 KTS
    ---
   24 HRS, VALID AT:
   290600Z --- 10.9N 152.7W
   MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 010 NM NORTHEAST QUADRANT
                            000 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            010 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT
                            010 NM SOUTHEAST QUADRANT
                            010 NM SOUTHWEST QUADRANT
                            020 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 275 DEG/ 12 KTS
    ---
   36 HRS, VALID AT:
   291800Z --- 11.0N 155.1W
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 010 NM NORTHEAST QUADRANT
                            000 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            010 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            015 NM SOUTHEAST QUADRANT
                            010 NM SOUTHWEST QUADRANT
                            025 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
                            050 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 275 DEG/ 14 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   300600Z --- 11.2N 158.0W
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 010 NM NORTHEAST QUADRANT
                            000 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            010 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT
                            010 NM SOUTHEAST QUADRANT
                            010 NM SOUTHWEST QUADRANT
                            020 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
                            050 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 60 HR POSIT: 280 DEG/ 16 KTS
    ---
   60 HRS, VALID AT:
   301800Z --- 11.6N 161.2W
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT
                            000 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            015 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            020 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   VECTOR TO 72 HR POSIT: 275 DEG/ 18 KTS
    ---
   72 HRS, VALID AT:
   310600Z --- 12.0N 164.8W
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            020 NM SOUTHWEST QUADRANT
                            050 NM NORTHWEST QUADRANT
   VECTOR TO 96 HR POSIT: 280 DEG/ 18 KTS
    ---
   LONG RANGE OUTLOOK:
    ---
   96 HRS, VALID AT:
   010600Z --- 12.9N 172.0W
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   VECTOR TO 120 HR POSIT: 285 DEG/ 19 KTS
    ---
   120 HRS, VALID AT:
   020600Z --- 14.5N 179.5W
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   POST-TROP/REMNT LOW
    ---
REMARKS:
281000Z POSITION NEAR 10.9N 149.4W.
28JUL25. TROPICAL STORM 01C (IONA), LOCATED APPROXIMATELY 641 NM
SOUTHEAST OF HILO, HAS TRACKED WESTWARD AT 10 KNOTS OVER THE PAST
SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 280600Z IS 1001 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 280600Z IS 13 FEET. NEXT WARNINGS AT
281600Z, 282200Z, 290400Z AND 291000Z.//
NNNN

蜜露

中太平洋的01C 艾奧娜颶風  今天已經上到了Cat.3  差不多是一個丹娜絲的強度.

不過這個底層更有潛力, 加上未來的發展不排除上到Cat.4以上

未來也有機會跑到西太平洋