周子堯@FB

NHC命名01C.Walaka

ZCZC HFOTWOCP ALL
TTAA00 PHFO DDHHMM

Tropical Weather Outlook
NWS Central Pacific Hurricane Center Honolulu HI
200 PM HST Sat Sep 29 2018

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

The Central Pacific Hurricane Center is issuing advisories on
Tropical Storm Walaka, centered about 675 miles south of Honolulu,
Hawaii.

Elsewhere, no tropical cyclones are expected during the next 5
days.

Public Advisories on Tropical Storm Walaka are issued under WMO
header WTPA31 PHFO and under AWIPS header HFOTCPCP1.
Forecast Advisories on Tropical Storm Walaka are issued under WMO
header WTPA21 PHFO and under AWIPS header HFOTCMCP1.

$$
Forecaster Kino
NNNN

周子堯@FB

JTWC 28/21Z發布TCFA，數值看好發展

1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN
150 NM EITHER SIDE OF A LINE FROM 12.4N 152.1W TO 12.6N 158.9W
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 282000Z INDICATES THAT A CIRCULATION CENTER IS LOCATED
NEAR 12.3N 153.0W. THE SYSTEM IS MOVING WESTWARD AT 15 KNOTS.
2. REMARKS: THE AREA OF CONVECTION (INVEST 97C) PREVIOUSLY LOCATED
NEAR 12.4N 146.4W, IS NOW LOCATED NEAR 12.3N 153.0W, APPROXIMATELY
465 NM SOUTH-SOUTHEAST OF HILO, HAWAII. ANIMATED ENHANCED INFRARED
SATELLITE IMAGERY AND A 281843Z 89 GHZ MHS IMAGE DEPICT A BROAD LOW
LEVEL CIRCULATION WITH BROAD DEEP CONVECTION. THE UPPER LEVEL
ENVIRONMENT IS FAVORABLE, WITH LOW (5-10 KTS) VWS AND ADEQUATE UPPER
LEVEL DIVERGENCE DUE TO STRONG POLEWARD OUTFLOW. SSTS REMAIN
FAVORABLE (28-30 CELSIUS) IN THE REGION. GLOBAL MODELS GENERALLY
AGREE ON THE STORM DEVELOPING OVER THE NEXT FEW DAYS WHILE TRACKING
SLOWLY TO THE WEST. 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 REMAINS HIGH. THIS SUPERSEDES REF A
(WTPN21 PHNC 272100).

霧峰追風者

CPHC 展望提升至70%。

1. Showers and thunderstorms associated with a low level circulation
center located about 600 miles southeast of Hilo, Hawaii continues
to become better organized. Environmental conditions remain
conducive for this system to become a tropical depression this week
while it moves west at around 15 mph.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 5 days...high...90 percent.

霧峰追風者

CPHC 展望提升至60%，數值看好發展。

1. Showers and thunderstorms associated with a low level circulation
center located about 700 miles southeast of Hilo, Hawaii continues
to become better organized. Environmental conditions remain
conducive for this system to become a tropical depression this week
while it moves west 10 to 15 mph.
* Formation chance through 48 hours...Medium...60 percent.
* Formation chance through 5 days...High...90 percent.