Daily weather tracker: Monsoon sweeps across the country; Uttarakhand under red alert, heavy rainfall warning issued for UP and several other states

Prelims-testable facts

• 01The India Meteorological Department (IMD) has issued a red alert for Uttarakhand due to extremely heavy rainfall exceeding 204.5 mm in isolated places.
• 02A low-pressure area over Uttar Pradesh has weakened into a well-marked low-pressure system over the northern parts of central Uttar Pradesh.
• 03Several states, including Uttar Pradesh, Arunachal Pradesh, Assam, and Meghalaya, are under orange alert due to heavy to very heavy rainfall.
• 04Uttarakhand is expected to witness the most severe weather conditions, with authorities warning of landslides, flash floods, rising river levels, and road blockages.
• 05The monsoon trough currently extends from Sri Ganganagar through Hisar, the low-pressure area over Uttar Pradesh, Gorakhpur, and Purnea before reaching Mizoram.
• 06Active western disturbance and favourable atmospheric conditions over the Bay of Bengal are contributing to persistent rainfall across many regions.
• 07Favourable atmospheric conditions over Bangladesh, Assam, and adjoining Pakistan are also contributing to persistent rainfall across many regions.

Trap alerts

• Most people think that a red alert is issued for extremely heavy rainfall exceeding 115.5 mm, but actually it's 204.5 mm in isolated places.
• Most people think that the monsoon trough extends only from Sri Ganganagar to Hisar, but actually it extends through several other locations as well.
• Most people think that a low-pressure area over Uttar Pradesh has weakened into a high-pressure system, but actually it has weakened into a well-marked low-pressure system.