2020-07-29 (WEDNESDAY) | Jeju Olle Trail Daily Update

There are no guided walks or trail cleaning events until September


Today’s Olle Image

“A peaceful countryside…” along Route 13. By academy member Lee Seong-gwan on July 26.


Weather Summary

We have a high of 33°C with cloud to patchy cloud and clear sky. A gentle wind (4 m/s) is going to blow north.

Overall it will be another DRY and HOT day on the trail. Please prepare yourself for the sunshine and try not to put too many things in your day-pack. Watch out for high UV levels.


Sunrise: 05:45 // Sunset: 19:36

The PM 2.5 micro fine dust level is GOOD (07:00 KST)

The PM 10 fine dust level is GOOD (07:00 KST)

The UV level is VERY HIGH (early morning) / NORMAL (morning) / HIGH (afternoon)


Please refer to the Jeju Environment Protection Research Center (http://air.jeju.go.kr/index.htm)

Air Korea (https://bit.ly/2taWZp5) has excellent maps showing the real-time influence of fine dust.

Ultraviolet index for South Korea and Jeju Island can be checked here.


Jeju Island News


Translated with Google Translate and edited for unclear meanings


First July without a typhoon in Jeju climate history

Following the longest rainy season over the past 48 days, this time, it is more likely to be recorded as the first July without typhoon weather.

According to the Meteorological Administration and Typhoon Center on the 28th, there are only two typhoons so far this year in the Pacific region, the first typhoon created on May 12th and the second created on June 12th.

The average number of typhoons in July in the past 30 years has been 3.6. One of them has always affected the Korean Peninsula.

Last year, four typhoons occurred in July, one of which headed to Korea.

Typhoon means that the maximum wind speed among tropical cyclones occurring near the equator of East Asia, such as the North Pacific and the South China Sea, is at least 17m/sec. In order to generate a typhoon, the sea level temperature must be high.

Although the sea level temperature in the North Pacific region was not low this summer, there were relatively few cumulonimbus clouds that were used as a material for typhoons as they collided with the east wind near strong Pacific high pressure.

However, at the end of this month or early next month, a tropical cyclone could be generated above 10 degrees north latitude, and there is a possibility of that developing into a typhoon. If the tropical low-pressure area does not develop power until the 31st, July without a typhoon becomes a reality.

An official at the Typhoon Center explained, “There are different sea surface temperatures in different sea areas, so the conditions for typhoons are not the same.

The average annual number of typhoons in the last 30 years was 25.6. Among them, the number of August occurrences was 5.8, the highest. There were 4.9 cases in September and 3.6 cases in July and October. Typhoons also occurred in November in 2.3 cases.

Of these, the average number of typhoons that affected the Korean peninsular was 3.1. By month, there were 1.1 cases in August, 0.9 cases in September, and 0.6 cases in September. The probability of impact is relatively low with 0.3 cases in June and 0.1 cases in October.

Source: http://www.jejusori.net/news/articleView.html?idxno=318394

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