Daily weather brief – Friday, January 13, 2017

NWPAC outlook, 13 JAN

NWPAC outlook, 13 JAN



NORTH

Very cold air continues to dominate much of the north region today as we head into the weekend. The big story this weekend is the snowfall expected in parts of western Japan as the latest storm system drags in very cold air over the relatively warmer Sea of Japan, and gets a lift from the topography throughout the western and central prefectures. This scenario is forecast to bring about a significant snowfall event over these areas, leading to the potential for avalanches in the mountainous terrain. Anyone planning to visit these areas over the weekend should exercise extreme caution.

JAPAN snow outlook, 13 JAN

JAPAN snow outlook, 13 JAN



Elsewhere across the region, clouds and a few snow showers are likely over southeastern Russia and the Korean Peninsula, while fog and low clouds will keep conditions cool and clammy across eastern china. Air quality across Beijing continues to degrade and stagnant air and high pressure remain locked in.

 

City

High/Low

C

High/Low

F

Conditions

Ulaanbaatar

-15

-29 5 -20

Mostly fair

Vladivostok

-11

-24 12 -11

Mostly cloudy

Beijing

2

-8 36 18

Partly cloudy/Haz. air quality

Seoul

-1

-11 30 12

Snow showers likely

Tokyo

10

0 50 32

Mostly fair

Shanghai

11

1 52 34

Fog and low clouds

 

CENTRAL

Clouds and showers will dampen sprits over the central region as a frontal system remains stalled out over the region. The heaviest precipitation will be found over the Ryukyu Islands, while scattered showers will prevail to the south and west as far as northern Indochina. Temperatures will be held back a bit by the cloud-cover and rain, with most locations only reaching the mid to upper teens C (low-mid 60’s F).

City

High/Low

C

High/Low

F

Conditions

Kunming

16

7 61 45

Scattered showers likely

Hong Kong

16

15 61 59

Mostly cloudy

Taipei

17

14 63 57

Scattered showers likely

Naha

18

15 64 59

Periods of rain

Hanoi

16

14 61 57

Scattered showers likely

 

SOUTH

The south region is dealing with two major plumes of moisture associated with tropically-oriented systems as the remnants of 01W move into Indochina, and moisture from the degrading 97W INVEST moves into the Philippines. Most of the rainfall will begin this weekend in Vietnam, Cambodia, and eastern Thailand, but parts of the Philippines has already seen the rainfall begin.

WPAC TPW, 13 JAN

WPAC TPW, 13 JAN



To the south, plentiful tropical moisture remains in place, lending to a good chance for afternoon showers and thunderstorms. Where the sun shines the most, temperatures will be very warm, while the remainder of the region will also see highs in the lower 30’s C (Near 90 F).

City

High/Low

C

High/Low

F

Conditions

Siem Reap

33

23 91 73

Mostly cloudy

Ho Chi Minh

34

24 93 75

Partly cloudy

Manila

31

24 88 75

Partly cloudy

Davao City

32

24 90 75

Scattered thunderstorms possible

Brunei

33

24 91 75

Partly cloudy

Singapore

32

25 90 77

Thunderstorms possible

 

TROPICS

01W and 97W INVEST continue to weaken as the atmosphere continues to dry out over much of the tropics…

TAAG, 13 JAN

TAAG, 13 JAN



01W, which JMA still labels a tropical depression on surface maps, has basically fallen apart due to strong wind shear and dry atmospheric conditions. This system will continue to degrade as it gets pushed to the west-southwest by the strong seasonal northeast monsoon. 97W INVEST has also been showing signs of degradation, as the convection has separated from the very weak surface low pressure, and has been pushed to the west by the strong northeast monsoon. This system is currently bringing rainfall to the eastern Visayas in the Philippines, and this moisture will slide across the Visayas and southern Luzon over the weekend.

01W/97W full, 13 JAN

01W/97W full, 13 JAN

Elsewhere across the tropics, much of the moisture has been carried away to the west by the most recent disturbances, and as the recent M.J.O. (Madden-Julian oscillation0 phase wanes and drier air comes in from the north, we find most of the remaining moisture to be located well below 10 degrees latitude. Most locations across the tropics can expect a chance for scattered showers and thunderstorms today, but the action will be quite isolated and light. For more information on the tropics, please refer to the “Western Pacific Tropical Update” by meteorologist Mike Adcock on this website.

City

High/Low

C

High/Low

F

Conditions

Guam

30

26 86 79

Scattered thunderstorms possible

Yap

30

26 86 79

Scattered thunderstorms possible

Palau

30

26 86 79

Partly cloudy

Chuuk

30

26 86 79

Scattered thunderstorms possible

Pohnpei

30

26 86 79

Partly cloudy

Majuro

30

26 86 79

Scattered thunderstorms possible

Wake

27

24 81 75

Mostly fair

 

Have a fabulous Friday!

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

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