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Daily weather brief – Friday, September 30, 2016

NWPAC outlook, 30 SEP

NWPAC outlook, 30 SEP

NORTH

Cooler and drier air continues to filter down into the north region as autumn takes a firm hold of the weather. A stalled cold front over the eastern portions of the region will bring cloudy skies to Japan and Korea, and a few thunderstorms across eastern China. Another shot of cooler air is moving into Mongolia, bringing in some clouds and showers as well. Elsewhere, interior locales of northern China and southeastern Russia will see plenty of sunshine and pleasant temperatures.

City

High/Low

C

High/Low

F

Conditions

Ulaanbaatar

15

0 59 32

Mostly cloudy

Vladivostok

20

18 68 64

Mostly fair

Beijing

25

13 77 55

Mostly fair

Seoul

23

14 73 57

Mostly cloudy

Tokyo

23

19 73 66

Mostly cloudy

Xi’an

28

17 82 63

Mostly fair

Shanghai

29

24 84 75

Scattered thunderstorms possible

 

CENTRAL

Autumn weather settles in across the central region as well, as cooler and drier air works its way into the region in small portions. Attention is focused on Tropical Storm 21W CHABA, as forecasts show continued development, and a track very close to Okinawa next week. Lingering tropical moisture will interact with the cooler surface layer and generate some showers and thundershowers across much of the region, with partly cloudy skies and warm temperatures across northern Indochina and southern China this afternoon.

City

High/Low

C

High/Low

F

Conditions

Kunming

19

15 66 59

Scattered thunderstorms possible

Hong Kong

28

24 82 75

Scattered showers possible

Taipei

32

26 90 79

Scattered thunderstorms possible

Naha

31

27 88 81

Mostly fair

Hanoi

32

24 82 75

Partly cloudy

 

SOUTH

No autumn weather for the south region as most location bask in the warm and humid tropical air mass settled in over the region. The warm afternoon sun will interact with an upper-level low pressure trough, bringing a good chance for thunderstorms for Southeast Asia and the northern Philippines. To the south, with less atmospheric action to help fire off thunderstorms, a few scattered storms could pop up in spots, but coverage will be spotty at best.

City

High/Low

C

High/Low

F

Conditions

Siem Reap

30

24 86 79

Thunderstorms likely

Ho Chi Minh

31

24 88 75

Thunderstorms likely

Manila

30

25 88 77

Thunderstorms likely

Davao City

32

24 90 75

Scattered thunderstorms likely

Brunei

33

25 91 77

Scattered thunderstorms likely

Singapore

32

25 90 77

Thunderstorms likely

 

TROPICS

With the demise of 20W MEGI, attention in the tropics turns to the developing Tropical storm CHABA, and 99W INVEST a bit farther to the east.

TAAG, 30 SEP

TAAG, 30 SEP

Tropical storm 21W CHABA has been assessed as a tropical storm by both J.M.A. (Japan Meteorological Agency) and J.T.W.C. (Joint Typhoon Warning Center) as it slowly gathers strength in the western Pacific. Current forecast tracks are in fairly good agreement through the first 72 hours, deviating a bit in the final solutions. However, the storm appears to be tracking more or less towards Okinawa in the coming days, as it grows into a fairly strong typhoon, with JMA showing a pass well to the east, and JTWC taking the system right over Okinawa next week.

21W full, 30 SEP

21W full, 30 SEP

99W INVEST was designated yesterday, east of the Mariana Islands. The latest runs of computer model forecasts are in general agreement, showing a relatively weak system tracking towards the northern Philippines/Luzon Strait by next weekend.

99W INVEST, 30 SEP

99W INVEST, 30 SEP

For today, most locations within the tropic region will see a good chance for scattered showers and thunderstorms, as deep tropical moisture interacts with scattered pockets of energy.

City

High/Low

C

High/Low

F

Conditions

Guam

31

26 88 79

Scattered thunderstorms likely

Yap

30

26 86 79

Scattered thunderstorms likely

Palau

29

27 84 81

Scattered thunderstorms likely

Chuuk

31

26 88 79

Scattered thunderstorms likely

Pohnpei

27

22 81 72

Scattered thunderstorms likely

Majuro

28

27 82 81

Scattered thunderstorms likely

Wake

30

27 86 81

Scattered thunderstorms likely

 

Have a fabulous Friday!

Courtesy: CIMSS, Tropical Tidbits, JMA, JTWC, Intellicast, WUnderground.com, N.R.L., RAMMB-NOAA

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