Key Facts
• August 20, 2:06 PM: Yokohama Meteorological Observatory issued a weather alert.
• Alert covers thunderstorms, tornadoes, hail, and sudden heavy rain.
• Unstable atmospheric conditions expected until early evening on August 20.
• Caused by pressure trough, daytime temperature rise, and cold air aloft.
• Residents advised to seek shelter if cumulonimbus clouds approach.
• Risk of hail may impact crops and agricultural facilities.
• Follow future disaster weather updates for safety.
• This weather alert is the final notice for this event.
Summary
On August 20 at 2:06 PM, the Yokohama Meteorological Observatory issued a weather alert for Kanagawa Prefecture, warning of thunderstorms, tornadoes, hail, and sudden heavy rain due to unstable atmospheric conditions. The instability, caused by a pressure trough, rising daytime temperatures, and cold air aloft, is expected to persist until early evening. Residents are urged to take precautions, such as moving indoors if cumulonimbus clouds approach, and to monitor updates for safety. The alert also highlights potential hail damage to crops and agricultural facilities. This is the final notice for this weather event.
