Skymet weather

Monsoon makes further advancement in east India, good showers continue

The Southwest Monsoon, which till yesterday was confined to coastal Odisha, West Bengal and east Bihar has advanced further and covered entire Odisha, Bihar, Jharkhand and east Uttar Pradesh.

In a span of 24 hours since 8 am on Wednesday Kolkata received 39 mm, Midnapore 81 mm and Digha 60 mm of rain. Jamshedpur in Jharkhand received 105 mm of rain. In east Uttar Pradesh Gorakhpur observed 22 mm of rain, while Patna and Bhagalpur in Bihar received 13 mm and 26 mm of rain respectively.

According to Skymet Meteorology Division in India, good rain is expected in these areas in the next 24 to 48 hours and the Monsoon is likely to advance further into some more parts of east Uttar Pradesh and Madhya Pradesh.

Meanwhile, temperatures in east India have gradually gone down due to widespread rain. They are now maintaining around 35 degrees Celsius and are expected to drop further by a couple of notches.

This has come as good news for the farmers who were eagerly waiting for rain. Monsoon in East India is already delayed by over a week.

Wait for Monsoon in Delhi to reach climax by next week

Thunderstorm followed by light rain in few pockets of Delhi/NCR came as a sigh of relief after a hot and muggy afternoon on Wednesday. High temperature and available moisture in the air resulted in thunderstorm in the evening. Till 8.30 pm, the Safdarjung Observatory recorded 3.6 mm while Palam received 2 mm of rain.

After witnessing a constant rise in maximum from 40.6°C on Sunday to 43.3°C on Tuesday, the day temperature came down once again to 41.2°C yesterday. Temperature will not rise significantly immediately as temperatures have come down in Rajasthan as well and the winds coming from the west direction are less hot than those experienced last week when temperatures had risen to mid-forties and above.

According to the latest weather update by Skymet Meteorology Division in India, there are chances of thunderstorm and isolated light rain in Delhi/NCR on Thursday. In fact the wait for Monsoon will reach the climax by next week as scattered showers with few good spells are likely to commence from the 21st onward due to a trough along the foothills of the Himalayas from northwest plains to north Bay of Bengal across east Uttar Pradesh, Bihar, Bengal, Jharkhand, Odisha and Chhattisgarh. This spell will lead to Monsoon showers much before the end of this month.

Reason for sultry weather in Delhi

Around 5 am on Thursday morning, humidity was as high as 70% but with the change in wind pattern from south easterly to north westerly, humidity came down to 47% in the afternoon. A trough of low pressure, running from central Pakistan to Gangetic West Bengal across Haryana, east Uttar Pradesh and Bihar is responsible for this high humidity. The north-south oscillation of this trough keeps on changing the wind pattern from westerly in the day time to easterly during late evening to early morning hours.

The moisture still persists in the air and only a persistent flow of dry westerly winds for 2-3 days could reduce the chances of high humidity returning back to the national capital. This scenario seems unlikely now as Southwest Monsoon is quickly progressing to Central and east India therefore, the pattern of winds are shifting from north westerly to south easterly.

picture courtesy- R.V. Moorthy 

Top Ten rainiest cities in India on Wednesday

According to the latest weather update by Skymet Meteorology Divison in India, good Monsoon showers will continue over most parts of East India, particularly over West Bengal where heavy showers are likely for another 48 hours. Karnataka along the west coast of peninsular India will also continue to receive good amounts of rain. Here are the top ten rainiest cities in India on Wednesday.

Cities State Rainfall
Jamshedpur Jharkhand 105 mm
Midnapore West Bengal 81 mm
Agumbe Karnataka 80.4 mm
Cherrapunji Meghalaya 74.2 mm
Digha West Bengal 60 mm
Karwar Karnataka 50 mm
Krishnanagar West Bengal 48 mm
Sriniketan West Bengal 42 mm
Kolkata West Bengal 39 mm
Bilaspur Chhattisgarh 38 mm

Rainfall deficit in Kerala persists; Mumbai unlikely to meet on-going deficiency

Subdued activity could be seen over Kerala since the 15th of June and the Monsoon surge now seems to be more active over the west coast above Kerala, as Konkan, Goa and Karnataka have been receiving good showers.

Heavy showers in Kerala began to make up for less Monsoon rain in the state, reducing the rain deficit from 40% till 10th of June to 27% on the 16th which still remains. The Monsoon surge keeps on fluctuating and now seems more active over the west coast, particularly Konkan, Goa and Karnataka but reduced over north coastal Maharashtra and Kerala.

In a span of 24 hours from 8.30 am on Wednesday, Kozhikode  received 14 mm of rain, Kochi 5 mm, Kottayam 8 mm. Kannaur has been the only place to have received good showers of 51 mm.

In Mahrashtra, Wardha received 46.4 mm, Harnai 36 mm, Mahabaleshwar and Nagpur 15 mm. Mumbai and Ratnagiri received only 7 mm and 6 mm of rain, respectively.

Southwest Monsoon is likely to cover some more parts of Maharashtra within 48 hours. Mumbai receives an average of 523.1 mm of rain in June but according to the latest weather update by Skymet Meteorology Division in India, the city will not be able to meet the on-going deficit. There is no significant Monsoon surge in the coming 5 days, which could bring heavy showers to mitigate the deficiency.

According to Skymet Meteorology Division in India, Southwest Monsoon has been making a slow advancement after making a sluggish start this year possible due to the tropical cyclone ‘Nanauk’, which had been controlling the free flow of westerly winds favourable for the Monsoon surge. Skymet is hoping for rain to gradually pick up over Kerala but deficiency might not be mitigated considering that 2014 is an El Nino year. El Nino in India has already made a huge impact on date of onset and may also affect the overall monsoon performance, increasing or decreasing rainfall in a region.

picture courtesy- Vivek Bendre

Tamil Nadu receives isolated monsoon showers; Chennai to observe rain in 24 hours

While entire South India is witnessing good Monsoon showers, Tamil Nadu is one state which is devoid of any major rain activity. And this is not because the state hasn't been receiving enough Monsoon rain, it is because Tamil Nadu lies in the rain shadow area and gets more than 70% of its rainfall from Northeast Monsoon in the winter months. However, light isolated rainfall during the Monsoon months (June to September) is a common feature in the otherwise parched state.

According to the latest weather update by Skymet Meteorology Division in India, cities of interior Tamil Nadu received light rain in the last 24 hours. Coimbatore and Cunnoor recorded 5 mm and 5.8 mm of rain respectively. Coimbatore observed light rain on 17th June as well, though this was below 1 mm.

Since rain in Tamil Nadu is sporadic in the Monsoon season, most cities like Madurai, Salem and Tiruchirappalli have been dry this month. The capital city Chennai has also been dry since 14th June with only 0.5 mm of rain being observed on the evening of 17th June. However, Chennai has already received excess Monsoon rain this month. The city has so far recorded 77.5 mm of rain as opposed to an average of 52 mm in the month of June.

“Looks like there is a possibility of light rain along coastal Tamil Nadu in the next 24 hours, including capital city Chennai, as a feeble trough is likely to form. Though rain may not be over 10 mm, it will be good enough to pull down the maximum temperature in Tamil Nadu which has been hovering close to 40⁰C for the last few days”, says meteorologist Mahesh Palawat.

Maximum in Chennai exceeded 40⁰C consecutively for two days on the 16th and 17th June. So far 16th June has been the hottest in the state, with Madurai recording 40.2⁰C and Salem 38⁰C as maximums. Tiruchirappalli recorded 39.4⁰C and Vellore 38.8⁰C.

Southwest Monsoon: West coast including Goa, Karnataka continue receiving good rain

The west coast of peninsular India right from south Gujarat to Kerala will continue to receive Monsoon rain with good showers over Konkan, Goa and Karnataka. But the intensity of rain will remain less over north coastal Maharashtra including Ratnagiri and south coastal Gujarat for the next 2 days.

Telangana, Vidarbha, Chhattisgarh, Odisha, Bihar, Jharkhand, West Bengal and east Uttar Pradesh have been receiving good showers since the last 24 hours and will continue for next 2 to 3 days.

Rain in Karnataka

In a span of 24 hours from 8.30 am on Wednesday Agumbe received 80.4 mm of rain, Karwar 50 mm, Mangalore 12 mm, Honnavar 18 mm and Madikeri 19 mm. Panaji in Goa received 25 mm of rain.

In Kerala only few stations including Kannur (51 mm) received good showers.

Rain in Maharashtra

Wardha received 46.4 mm, Harnai 36 mm, Mahabaleshwar and Nagpur 15 mm, Mumbai 7 mm and Ratnagiri 6 mm.

Southwest Monsoon is likely to cover some more parts of Maharashtra within 48 hours and according to the latest weather update by Skymet Meteorology Division in India, Southwest Monsoon has already covered West Bengal, parts of Jharkhand and Bihar and some parts of Odisha and Telangana.

In West Bengal, Asansol received 30 mm, Coochbehar 18 mm, Digha 60 mm, Kolkata 39 mm, Krishnangar 48 mm and Srineketan 42 mm of rain. Jamshedpur in Jharkhand received 105 mm of rain.

Rain in South India picked up considerably from the 11th of June but this increase in rain still hasn't been able to make up for the deficit in South India.

Deficiency in the National Cumulative Average monsoon rain, from the 1st to the 18th of June stands at a whopping 45%. On a whole South India is facing a rain deficit of about 27% while the deficiency was 24% till the 14th June. Deficiency over coastal Karnataka has reduced to about 32% now.

Southwest Monsoon continues to bring good showers but the deficiency seems to be overriding as the west coast of South India receives very heavy showers, especially in the initial phase of Southwest Monsoon. But interior parts of peninsular India is not receiving enough rain.

picture courtesy- News Kerala

 

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