Some thunderstorms, rains and duststorms are due this weekend in the plains of North India

-

 


The weather has been dry and hot since past few week and absence of any proper spring rains in the plains of North India has landed the region in large rainfall deficit for the pre-monsoon 2024 but a moderately active WD is expected to affect the region from the afternoon of 10th May into late evening of 12th May. Lets dive further into the details of this event.

Weather synopsis 

• A moderately active WD: A WD of magnitude (7/10) (Western Disturbance) with a mild dip in upperlevel trough

• Induce CC: A induced Cyclonic Circulation will develop over Bikaner and adjoining North & North Central Rajasthan

• Pre-Monsoon trough: Weak Pre-Monsoon trough will act as a boundary where the thunderstorms will develop over and along

• Dual Moisture Feed: Adequate moisture supply from the Bay of Bengal by the cool and moist Southeasterly and by the Southwesterly winds from the Arabian Sea

Action and sync of these weather systems

• A moderately active WD is set to interaction with the existing pre-monsoon trough coupled with proper moisture supply from Arabian sea and Bay of Bengal and the weak induced CC will produce scattered thunderstorms in the plains of North India between 10-12th May

• Lower troposphere supports adequate lifting of the available moisture and sustainability of the thunderstorms.

Weather effects

• Scattered thunderstorm will initiate over the NE Rajasthan, Aravalli range, parts of South Haryana, Punjab and these thunderstorms will mature over these region. First sets of thunderstorms will develop in these region on the afternoon of 10th May and would later move SE with slight Eastward tilt while few scattered thunderstorms will develop over North Punjab and they will bring scattered activities in parts of Punjab, Foothills and North Haryana. These sets of thunderstorm will be capable of producing scattered moderate to heavy rain with chances of isolated hailstorms and intense rains along with thunder and lightning strikes followed by duststorm with wind gust upto 30-70km/h. Some of the storms will later affect parts of Central Haryana, Delhi and North Central Haryana and North West Uttar Pradesh and adjoining foothills of Himachal Pradesh.

• 11th May will start with t-storms from the previous night becoming out flow dominant and leaving space for another stormy afternoon. There will be a slight drop in temperature especially at the places where rains have occurred the other day. The forenoon will remain hot and humid with isolated storms affecting places along the Aravalli range and later maturing into proper thunderstorms and duststorm aided by the favorable dynamics. These storms will bringing light to moderate rains with isolated heavy spells and hailstorms followed by duststorm with winds gusting upto 30-70km/h in parts of Rajasthan, Haryana, Punjab, Delhi and Ncr and adjoining places of West Uttar Pradesh. 

• 12th May will once again see the similar action during afternoon into late afternoon into evening hours

• Activities will reduce from the 13th May and the region will once again become hot and dry for sometime


Comments

Post a Comment

Popular posts from this blog

Monsoon 2024 sends a surprise towards Northern India

-
Image
 The Northern Plains of India have seen various colours of Monsoons 2024. The season started with a fierce thunderstorm which dumped 228mm of Rains within a short time frame of just 6 hours at Safdarjung observatory in Delhi. The weather has been of various shades across the Indo Gangetic Plains this monsoon!  Various parts of the IGPs and Punjab saw a large deficit in rainfall quantum till August end and Western Rajasthan, Delhi and Core Monsoon Zone and Western Coast of India have received significant rainfall this season, taking the tally into surplus rains. Month of September sees large scale changes weakening of Monsoon drivers and Autumn begins to set in and crops stand ready for harvest but this year this cycle is interrupted and we are likely to see a delayed monsoon withdrawal and a WD + Depression/WML interactions will bring flooding rains and crop damage over a large part of Northern Plains. A Depression formed over Bay of Bengal around 5-7th is moving toward NorthW...
Read more

July ends with worsening monsoon woes for Northern India with large deficiency, Will August be of any good news?

-
Image
The four month long rainy season brings joy to every Indian each year after a long period of summer dread however this year The Northern India saw extreme summers due to absence of any proper pre-monsoon rains which coupled with a strong anti-cyclonic circulation bough extreme heat and dryness across the entire North West. The all hopes on the monsoon during the month of July dashed, faltering the excitement of that "much anticipated relief". The month started on a superb note as onset spell dumped 228mm of rains within 4 hours at Safdarjung in Delhi and good heavy spells in other areas of Haryana, Punjab and Rajasthan during the first week of July. The weather became excessively humid and hot and on the other hand isolated rains kept the humid high across the entire region and raising the real feel index upto mid 40s and even 50s on many occasions. The axis of monsoon trough stayed south of its normal position. Places like Rajasthan, Gujarat, Madhya Pradesh and Maharashtra s...
Read more

Severe and long term heatwave to start affecting North & Central India from Friday

-
Image
  The plains of Northern India have been witnessing a poor pre-monsoon and normal hot and dry weather from quite some time with occurrence of scattered dust storms and thunderstorms following few moderately active WDs which were affecting the region on few occasions following long dry lull phases. The weather is once again set to become dry and hot following a prolong severe but proper heatwave which is expected to affect the region from Friday. Weather synopsis  • Weak Western Disturbance (WD): There is a weak WD which will bring only isolated light rain/drizzles coupled with localized instability in parts of North Rajasthan, South Punjab, Haryana and Delhi till 21st May. There are 2 more weak WD which will affect the region after this one however they all will be suppressed due to a Anti-CC. • Anti-CC: A high pressure/ Anti Cyclonic Circulation over West-Central-West India will make the air sink as these systems suppresses rising air, there will be limited t-storms to no t-...
Read more