Two tropical depressions, referred to as “typhoon eggs,” are expected to form south of Japan, with one potentially developing by tonight and another by the 29th. These systems could trigger warning-level heavy rain in Western Japan around July 3rd, according to reports from TBS NEWS DIG and BSS San-in Broadcasting.
When will the new tropical depressions form?
According to TBS NEWS DIG, a new tropical depression may form as early as tonight. Additional reports suggest a second tropical depression could also emerge by the 29th.

Convection activity is currently reported as active, according to MBC. This activity is expected to drive the development of these systems south of the Japanese islands.
How will these systems impact the weather in Japan?
BSS San-in Broadcasting warns that Western Japan could experience warning-level heavy rain around July 3rd. The severity of this rainfall may depend on the level of activity from weather fronts in the region.
RCC Chugoku Broadcasting notes that the potential for a “double” appearance of these tropical depressions may impact the Nankai region. Residents are advised to monitor wind and rain simulations, which are available through July 8th.
What should residents do to prepare?
Meteorologists suggest that even if skies appear clear, the next “typhoon egg” is already forming. Experts from Yahoo! News emphasize the importance of monitoring upcoming typhoon information.
- Monitor rain and wind simulations through July 8th.
- Stay updated on local typhoon information as systems move south.
- Watch for potential heavy rain warnings in Western Japan around July 3rd.
Frequently Asked Questions
When is the next tropical depression expected to form?
One may form by tonight, and another could develop by the 29th.
Which regions are most at risk for heavy rain?
Western Japan may face warning-level heavy rain around July 3rd, and the Nankai region may also see impacts.
How long are the current weather simulations available?
Rain and wind simulations are provided through July 8th.
Are you monitoring local weather alerts in your area?