Daily weather brief – Friday, January 13, 2017

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.

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.

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…

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.

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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