The Great Southern Route : 2010 - 2011
WEATHER ROUTING 116 | GSR Bering Sea. Cold fronts associated with these systems extend farther south as well, and during the winter season are often found to move across Taiwan and the Taiwan Strait vicinity. The main concern during June through September will be the tropics, becoming most active this time of year, averaging 4 to 7 systems per month. Tropical cyclones typically develop in the Western Pacific east of the Philippines, and take one of two tracks: 1) a general west to west- northwestward track through the Philippines and into South China Sea, toward mainland China, or 2) "curve" northwest to northward toward Japan and the Sea of Japan, before turning more north to northeastward near 30N-35N once these systems get caught up in the increasing southwest to westerly winds in upper levels of the atmosphere. Tropics will still be a factor across the area during the autumn months, averaging 3 to 5 systems per month. Typical cyclone development and tracks change little compared to the summer toward Hokkaido and vicinity, where is retains its "residency" for the summer. With the arrival of the Bai-U front (and the passage of lows), there is an increase in the incidence of showers and squalls along this front, creating a distinct rainy season. The front usually lasts for 1-2 weeks before moving completely out of a particular location (farther north), though during this rainy period it is not uncommon to get bouts of heavy precipitation and severe squalls. Cold fronts associated with lows during the summer typically extend southwestward to near 33N, moving across the Sea of Japan approximately every 3-4 days. Behind these fronts, transitory high pressure ridges build eastward into the Japan/Sea of Japan area, breaking away from the main high pressure ridge farther west. Gales (and storms during the winter season) become more frequent in October through early spring. The gales/storms develop mainly between 30N to 60N and track northeastward toward the JAPAN AND KOREA TO TAIWAN: A large, semi-stationary North Pacific high extends east to west across the Pacific towards the Philippine Sea and Japan during the late spring and remains in place through August. This large Pacific high will dominate the flow of storm tracks across the northwestern Pacific. This high slowly begins to weaken and retreat eastward away from Eastern Asia during August and September, and further weakens during winter, occurring as cold fronts become stronger, more frequent, and extend farther south into the region. Fronts of course are associated with the passage of lows and gales off to the north. These lows/ gales during June through August are less frequent than during most other times of the year, and typically remain north of 35N in the summer from eastern Japan northeastward towards the Bering Sea and Aleutians. At times, these systems can move more east-eastnortheastward from the Kuril Islands into and across the Western Pacific. Lows during this particular period are associated with the so-called "Bai-U" front, which is basically a "line of demarcation" if you will between warm, moist air from the tropical Pacific, and cooler, drier air (more typical of spring) farther north. During the early part of June, the Bai-U front lies along southern Japan, and during the month begins a slow trek north Eastern Asia has many exotic locations to explore such as South Korea, Japan, Taiwan, Eastern China and Hong Kong. Along with sights, sounds, and culture comes variety...in the weather world. The weather conditions across this part of the world differ significantly during the summer and winter months, and tropical season never officially ends (on the surface, a less the comforting thought). However there are places to go to get away from it all AND to find the best weather. Safe routing through the region will be determined by prevailing w eather features, strong currents, and tropical cyclone activity. So without further ado, let's take a look and see what Mother Nature has to offer here. General Weather Conditions in Eastern Asia By Jeremy Davis of Weather Routing, Inc.
2008 - 2009
2013 - 2014