Daily weather brief – Friday, August 19, 2016

NWPAC outlook, 19 AUG

NWPAC outlook, 19 AUG

NORTH

The heat spreads across parts of central and eastern China as a weak frontal boundary stalls out to the north. The warm air is piling on as it butts up against a fairly strong shot of cool air that has brought autumn temperatures to Mongolia, northern China. Dangerous heat indices will once again be in place across interior central China, peaking near 44C (111F), as the heat and humidity combine for an oppressive afternoon. The frontal system will bring some scattered showers, and some scattered thundershowers, along a line from Mongolia, eastward to Japan.

City

High/Low

C

High/Low

F

Conditions

Ulaanbaatar

18

8 64 46

Scattered showers likely

Vladivostok

24

21 75 70

Scattered showers likely

Beijing

32

22 90 72

Partly cloudy

Seoul

34

26 93 79

Scattered thunderstorms likely

Tokyo

31

25 88 77

Scattered showers likely

Xi’an

39

28 102 82

Partly cloudy & HOT

Shanghai

35

28 95 82

Partly cloudy & HOT

 

CENTRAL

Tropical Storm 11W DIANMU continues to slide to the west parallel to the southern coast of China. The system will make landfall over northern Vietnam later tonight, bringing heavy rainfall, gusty winds, and a risk of flooding and landslides, especially in the higher terrain of northern Vietnam and southern China. The remainder of the region will also see widespread unsettled weather, as deep tropical moisture gets a lift from the very warm afternoon sun.

City

High/Low

C

High/Low

F

Conditions

Kunming

26

17 79 63

Scattered thunderstorms likely

Hong Kong

30

27 86 81

Scattered thunderstorms likely

Taipei

33

27 91 81

Thunderstorms likely

Naha

32

28 90 82

Scattered thunderstorms likely

Hanoi

34

27 93 81

TROPICAL STORM CONDITIONS

 

SOUTH

The Philippines will get a bit of a break today, with only widely scattered showers and strong thunderstorms this afternoon. Tropical moisture is being drawn up into Tropical Storm 11W to the north, increasing rainfall chances across the entire Southeast Asian peninsula. Areas to the south can also expect a round of typical afternoon showers and strong thunderstorms as the warm sunshine lifts up the moisture.

City

High/Low

C

High/Low

F

Conditions

Siem Reap

31

26 88 79

Scattered thunderstorms likely

Ho Chi Minh

32

26 90 79

Thunderstorms likely

Manila

31

27 88 81

Scattered thunderstorms likely

Davao City

34

26 93 79

Scattered thunderstorms likely

Brunei

33

25 91 77

Scattered thunderstorms likely

Singapore

32

26 90 79

Thunderstorms likely

 

TROPICS

TAAG, 19 AUG

TAAG, 19 AUG

The tropical monsoon ‘front’ that has been in place over the western Pacific is generating a large amount of vorticity, as we now have 4 depression-strength systems in various stages of growth. The dual designations refer to the JMA/JTWC assignments.

10W full, 19 AUG

10W full, 19 AUG

Tropical Depression/Tropical Storm 10W is located just west of the Mariana Island chain. This system is expected to slowly gather strength while tracking to the north-northeast over the next day or so, and make a turn to the north-northwest this weekend.

11W full, 19 AUG

11W full, 19 AUG

Tropical Storm/Tropical depression 11W DIANMU is maintaining strength as it traverses the Gulf of Tonkin, with the coast of northern Vietnam in its sights. The system should make landfall later tonight, bringing typical tropical weather hazards to the region.

12W full, 19 AUG

12W full, 19 AUG

Tropical Depression/Tropical Storm 12W is located a bit to the southeast of Japan as it slowly gets better organized. Although 12W has been making what appears to be a beeline for the Japanese coast, forecasts indicate that this system will take a very strange track, in a slow counter-clockwise arc, parallel to the Japanese coast, while slowly gaining strength over the next 3 days.

98W full, 19 AUG

98W full, 19 AUG

Finally, 98W INVEST, located far northeast of the Mariana Islands, has been designated as having a high risk potential for 24 hour cyclone development, as the J.T.W.C. (Joint Typhoon Warning Center) has issued a T.C.F.A. (Tropical Cyclone Formation Alert). The system is expected to slowly organize while moving in a general north-northwesterly track this weekend.

The remainder of the tropics will see a good chance for scattered showers and thunderstorms, as plentiful moisture combines with scattered pockets of energy.

City

High/Low

C

High/Low

F

Conditions

Guam

29

26 84 79

Scattered thunderstorms likely

Yap

29

26 84 79

Thunderstorms likely

Palau

29

27 84 81

Scattered thunderstorms possible

Chuuk

31

27 88 81

Partly cloudy

Pohnpei

28

23 82 73

Scattered thunderstorms possible

Majuro

28

27 82 81

Scattered thunderstorms possible

Wake

30

26 86 79

Scattered thunderstorms possible

 

Have a fabulous Friday!

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

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