Light-Moderate Rainfall Likely Over Delhi: Sharp And Heavy Showers On Sunday-Monday
Delhi has been skipping heavy monsoon rains even after the delayed onset. Rainfall has largely been patchy and fleeting across most parts of the national capital. Clouds did gather this morning but drifted away without much weather activity. Base stations Safdarjung and Lodhi Road Meteorological Office did not record any rainfall in the past 24 hours. Palam registered 0.2 mm of rainfall due to mild thundershower activity last night. Light rainfall was recorded at a few other locations like Jafarpur, Najafgarh, Narela, and Ayanagar. More showers are likely during this week and may roll over into the next one as well.
There are two small-scale cyclonic circulations over the northern plains. One is lying over North Punjab and the adjoining Pakistan region, and the other is marked over Haryana. The trough line joining these two runs in close proximity to Delhi and extends up to the circulation associated with the remnant of a low-pressure area over West Bengal and Jharkhand. The oscillation of this trough will be the main source of weather activity over Delhi for the next week.
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Weather activity will mostly occur during the night and early morning hours. The intensity and spread of showers could be greater on 11th July. Again, sharp and intense showers are likely on Sunday night and may continue until Monday morning. Delhi can expect decent monsoon showers between 13th and 16th July.
The distribution of rainfall has been uneven for Delhi so far this monsoon season. The month of June had an overall rain deficit of 20%. The city recorded a total of about 65 mm of rainfall against the normal of 80.6 mm. Rains have remained dormant in July as well. The Safdarjung Observatory has recorded a total of 19 mm of rainfall in the first nine days of the month, which is quite low. July is the second rainiest month, with a monthly average of 195.8 mm. During the ongoing monsoon period from 1st June to 9th July, only southwest Delhi has received normal monsoon showers, while the rest of the districts fall into the deficit category. Some of the northern districts of Delhi have recorded a large deficit, with total rainfall barely reaching the double-digit mark. The upcoming week is expected to fare better than the previous two weeks.
