Daily weather brief – Friday, October 21, 2016

NWPAC outlook, 21 OCT

NWPAC outlook, 21 OCT

NORTH

Surges of cooler and drier air from the northwest continue to roll through the north region, bringing a definite feel of autumn into the region. The newest cold front is draped across Mongolia and northern China, and will usher in the coldest air of the season to arrive next week. And earlier cold front has exited the region to the east, but not before bringing significant snowfall to portions of Japan’s northernmost main island of Hokkaido. Most locations will see plenty of sunshine today, with very cool temperatures in the northernmost locales. Areas to the south will see warmer temperatures, with a few showers, with some heavier rain in spots, expected over central China, and tropical moisture from remnants of 24W SARIKA keeping things cloudy and moist over eastern China and the Korean peninsula.

City

High/Low

C

High/Low

F

Conditions

Ulaanbaatar

4

-6 39 21

Mostly fair

Vladivostok

9

1 48 34

Mostly fair

Beijing

11

9 52 48

Periods of rain

Seoul

20

13 68 55

Mostly cloudy

Tokyo

19

14 66 57

Partly cloudy

Xi’an

21

15 70 59

Scattered showers likely

Shanghai

24

22 75 72

Thunderstorms likely

 

CENTRAL

Typhoon 25W HAIMA is moving into the southeastern coast of China today, bringing all the hazards a tropical system presents. Hong Kong has issued a Tropical Cyclone Warning Signal T8, which effectively shuts the city down for the day. The good news is that Hong Kong is on the backside, or weak side, of the storm as it moves inland to the northeast, but heavy rain and gusty winds along with some flooding will be likely along the entire coast of southeastern China, with a landslide risk in the higher elevations. Some of HAIMA’s moisture will affect Taiwan and Okinawa as well, bringing a chance of showers and scattered thunderstorms this afternoon.

City

High/Low

C

High/Low

F

Conditions

Kunming

24

11 75 52

Mostly fair

Hong Kong

28

27 82 81

TROPICAL STORM CONDITIONS

Taipei

33

26 91 79

Scattered showers likely

Naha

30

27 86 81

Scattered thunderstorms likely

Hanoi

34

25 93 77

Partly cloudy

 

SOUTH

The weather has quieted down considerably across the south region, following the passages of typhoons 24W SARIKA and 25W HAIMA over the past 10 days. While the Philippines and southern China pick up the pieces, the weather will stabilize a bit, with the usual chances of afternoon showers and thunderstorms as the deep moisture gets a lift from the warm afternoon sun.

City

High/Low

C

High/Low

F

Conditions

Siem Reap

31

24 88 75

Thunderstorms possible

Ho Chi Minh

31

24 88 75

Thunderstorms possible

Manila

31

26 88 79

Thunderstorms possible

Davao City

31

23 88 73

Thunderstorms possible

Brunei

32

24 90 75

Scattered thunderstorms possible

Singapore

32

26 90 79

Scattered thunderstorms possible

 

TROPICS

Following a very busy 10-day period of late, all we are left with now is typhoon 25W HAIMA, which is moving into southeastern China as I write this report.

TAAG, 21 OCT

TAAG, 21 OCT

Typhoon 25W HAIMA is moving into southeastern China, just to the northeast of Hong Kong, and is packing power equivalent to a category 1 system on the Saffir-Simpson scale. Hong Kong has issued T.C.W.S. (Tropical Cyclone Warning Signal) #8 for the city, effectively shutting down the town for the day. HAIMA is expected to move inland today, weaken, and eventually get caught up in the strong baroclinic zone to the north, where its remains will be jettisoned out to open ocean in the next two or three days.

25W full, 21 OCT

25W full, 21 OCT

Elsewhere across the tropics, all is quiet, save for the usual daily dose of scattered showers and thunderstorms that are a product of the copious moisture teaming up with the very warm sunshine.

City

High/Low

C

High/Low

F

Conditions

Guam

31

27 88 81

Scattered thunderstorms possible

Yap

31

27 88 81

Scattered thunderstorms possible

Palau

30

26 86 79

Thunderstorms possible

Chuuk

31

27 88 81

Partly cloudy

Pohnpei

31

26 88 79

Scattered thunderstorms possible

Majuro

30

27 86 81

Scattered thunderstorms possible

Wake

30

26 86 79

Mostly fair

 

Have a fabulous Friday!

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

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