• Typhoon Noul has forced the evacuation of over 700,000 people in southern China.
• Hong Kong faced severe disruptions including the cancellation of around 350 flights.
• The storm prompted the issuance of the highest-level alert for potential flash floods.
• Noul is the third typhoon to hit China in July, bringing persistent heavy rainfall.
• Authorities urge residents to remain alert for real-time flood warnings and evacuations.

Typhoon Noul made landfall in southern China early on Sunday, impacting Guangdong province and neighboring Hong Kong with strong winds and heavy rainfall. Over 700,000 people have been evacuated in Guangdong due to the storm's severity, which remains the strongest typhoon to hit China this year, according to Channel News Asia and Reuters.

The typhoon caused significant disruptions, with Hong Kong's airport canceling about 350 flights and halting train services across Guangdong. The Hong Kong Observatory reported that the storm reached maximum sustained winds of 110 km/h (68 mph), affecting transport and daily operations in the city, according to Al Jazeera and Channel News Asia.

Chinese meteorological authorities have issued a red alert for flash floods in multiple provinces, predicting heavy to torrential rainfall capable of causing severe flooding. Regions expected to be heavily impacted include Jiangxi, Hunan, and Guangdong, with warnings to residents to monitor real-time updates on potential flooding, as stated by Reuters and Channel News Asia.

As Typhoon Noul continues to weaken, its residual effects are expected to bring heavy rains and gales across parts of southern China until Tuesday, increasing the risk of flash floods and further evacuations. Authorities are taking preventive measures and ensuring close monitoring of areas prone to flooding, according to Al Jazeera and Channel News Asia.