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Daily weather brief – Monday, November 21, 2016

NWPAC outlook, 21 NOV

NWPAC outlook, 21 NOV

NORTH

Very cold air has settled over much of the north region as the newest Siberian surge permeates the region. A very strong area of high pressure to the northwest in Siberia is responsible for pumping in colder and drier air, with temperatures across Mongolia, northern China, and southeastern Russia staying below zero through the day. The cold air boundary has pulled up stationary over northern China and will slowly work its way to the south and east over the next 48 hours. Rain showers are likely along the main surge boundary through northern China. These will be changing over to snow showers with frontal passage. Temperatures ahead of this boundary are comfortably mild with most readings in the teens. Eastern locales will see a chance for showers today as a weaker, leading frontal boundary moves away to the east.

City

High/Low

C

High/Low

F

Conditions
Ulaanbaatar -21 -29 -6 -20 Partly cloudy
Vladivostok -4 -13 25 9 Mostly cloudy
Beijing -1 -9 30 16 Periods of snow
Seoul 17 3 63 37 Partly cloudy
Tokyo 15 11 59 52 Scattered showers likely
Xi’an 11 1 52 34 Scattered showers likely
Shanghai 21 14 70 57 Scattered showers likely

 

CENTRAL

Temperatures are holding steady across the central region as moisture slowly returns to the region from the south. Low pressure sliding along a stalled frontal boundary just east of the Ryukyu Islands and Taiwan will help generate showers and scattered thunderstorms over those areas. The remainder of the region will see a nice day with just a few scattered clouds and mild to warm temperatures.

City

High/Low

C

High/Low

F

Conditions
Kunming 19 7 66 45 Mostly fair
Hong Kong 28 24 82 75 Partly cloudy
Taipei 27 22 81 72 Periods of rain
Naha 28 23 82 73 Thunderstorms likely
Hanoi 31 23 88 73 Partly cloudy

 

SOUTH

It will be another hot and muggy autumn day across much of the south region as high pressure retreats back to the north across most of the region. Most of the region, from Indochina to the southern Philippines, will see a chance for afternoon showers and thunderstorms, while the northern Philippines stays dry underneath the final vestiges of the recently-dominant high pressure to the north.

City

High/Low

C

High/Low

F

Conditions
Siem Reap 32 24 90 75 Scattered thunderstorms possible
Ho Chi Minh 32 25 90 77 Thunderstorms possible
Manila 32 24 90 75 Mostly fair
Davao City 33 24 91 75 Scattered thunderstorms possible
Brunei 32 24 90 75 Scattered thunderstorms possible
Singapore 31 25 88 77 Thunderstorms possible

 

TROPICS

After a quiet 4-5 days in the tropics, we finally have another area of disturbed weather on the official lists for observation.

TAAG, 21 NOV

TAAG, 21 NOV

98W INVEST is a spunky swirl of clouds and energy, far to the south in the retreating I.T.C.Z. (Inter-Tropical Convergence Zone). Although the southerly latitude could hinder any rapid development due to a lack of Coriolis forces in play, we have seen in the past that this is much less of a factor in systems with other favorable characteristics. Current computer model forecasts are inconclusive on this system, with some showing a re-curving track parallel to the eastern coast of the Philippines, and others showing passage over the southern third of the archipelago as a weak tropical system.

98W INVEST, 21 NOV

98W INVEST, 21 NOV

Elsewhere across the tropics, scattered pockets of energy, plentiful moisture, and warm sunshine will add up to a good chance of scattered showers and thunderstorms across many locales within the region.

City

High/Low

C

High/Low

F

Conditions

Guam

31

26 88 79

Scattered thunderstorms possible

Yap

29

26 84 79

Thunderstorms possible

Palau

30

26 86 79

Scattered thunderstorms possible

Chuuk

32

27 90 81

Thunderstorms possible

Pohnpei

31

25 88 77

Scattered thunderstorms possible

Majuro

28

27 82 81

Scattered thunderstorms possible

Wake

29

26 84 79

Partly cloudy

 

Have a marvelous Monday!

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

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