A Western Disturbance (WD) is expected to arrive over the Western Himalayan region from 15th February that could again unleash rainfall and snow over Jammu & Kashmir, Himachal Pradesh, Uttarakhand and over the plains of Punjab, Haryana, north Rajasthan and west Uttar Pradesh for next three days. The weather in Delhi will also change due to the effect of the Western Disturbance. Rain in Delhi will be witnessed anytime from 14th of February onwards. Hailstorm could also occur in Delhi and adjoining regions.
The amount of snow and rain would depend on the strength of the weather system, basically a trough of low pressure area that travels east-northeastwards from its place of origin (the Mediterranean Sea and the Atlantic Ocean. Winter rain in Delhi attributes to this weather system. The weather in Delhi during winter becomes cooler after departure of the Western Disturbance.
Till then, the weather in Delhi along with other areas in northwest plains will see a rise in night temperatures by 2 to 3 degrees during the next two days. Continuous heating of the surface has sent day temperatures soaring above normal in the region as well as in central India. Night temperatures are increasing under the influence of the present Western Disturbance over Jammu & Kashmir.
The ongoing Western Disturbance is feeble and will not bring significant rain considering what we saw at the start of last week. Though the higher altitudes will see increase in snowfall and rain during the next 72 hours.
Madhya Pradesh and Maharashtra are witnessing a confrontation of southeasterly and northerly to northwesterly winds. This will continue to give rain at one or two places during the next two days.
South Tamil Nadu, Kerala and Lakshadweep will continue to receive rain during the next two days. The southern Peninsular region has two low pressure areas on both its east and west flanks. The southwest Bay of Bengal has a trough of low pressure area near south Tamil Nadu and Kerala while Lakshadweep has one that runs up to south Maharashtra coast.