Sikkim and Sub Himalayan West Bengal are the northernmost pockets of Eastern India. These regions see heavy rains during Monsoon and get accentuated when the Monsoon trough lies in close proximity of the area.
Now, the situation is similar. The Monsoon trough is in close proximity of the two regions. A Low Pressure Area which had formed in the Bay of Bengal has moved inland now. Gradually, the system will move northward, closer to these regions.
Thus, heavy rains may be seen between September 20 and 24. rains will peak on September 21 and 22. Cities in Sub Himalayan West Bengal including Darjeeling, Kalimpong, Kurseong, Siliguri, Jalpaiguri, Hashimara, Cooch Behar, Dinajpur etc. may see heavy to very heavy rains. Gangtok, Lachen, Pelling, Namchi, Geyzing, Lachung etc. will also see heavy to very heavy rains.
Flooding rains may be seen which may cause connectivity issues along with the possibility of landslides, mudslides etc. While the spell is not a very long one, it is likely to cause some chaos across the region.
