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Winds likely to increase their intensity in Karachi
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Heat wave to return to Lower Pakistan
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Longest day of the year
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Monsoon to hit South Punjab in few days
Heat wave: Punjab cool downs – Sindh and Balochistan sweats
Sibbi remains the hottest city in the country for quite some time as temperatures remained 47 °C in the city. Overall the temperatures will decrease in all the rainy areas of the country. While a heat wave is likely to enter the southern parts of Pakistan that will remain till the end of June.
Longest day of the year – No affect on weather!
The longest day of the year, known as summer solstice in technical parlance, falls on June 21 each year.
It has no change on weather patterns as weather continues to behave normally.While some consider the summer solstice as the beginning of summer, many actually regard it as midsummer, though the definition varies between different regions and cultures
So when will it start in Karachi? As the day begins at 5.42 am PST and ends at 7.25 pm PST. The longest day will last for 13 hrs and 43 min in Karachi. Following is the longest day of other cities;
- 14 hrs & 29 min in Islamabad, also the longest in Pakistan.
- 14 hrs & 17 min in Lahore.
- 14 hrs & 31 min in Peshawar.
- 14 hrs & 16 min in Quetta.
Other cities will also have same timing with little variations.
More monsoon rains – Yes or No??
The answer is yes, more pre-monsoon showers likely but will be light in intensity. Same areas and provinces are expected to get rainfall with the addition of South Punjab and next will be upper Sindh, but upper Sindh will get first pre-monsoon rainfall on June 29 or June 30. Dusty winds will prevail in Karachi and coastal Sindh, chances of drizzle will increase from June 24 till June 26 due to presence of the remnants of deep depression BOB 02 over Northern Gujarat.
While coastal Sindh, which last year and in 2009 got an early onset on monsoon rainfall than any other part of the country, will remian cloudy and dry. But strong winds likely in this part of Pakistan, these winds might be dusty.
The year 2004, there was no monsoon rainfall in Karachi, only in the month of October due to cyclone Onil that too was 35.5 mm. While in 2005, same conditions persisted in Karachi, rains only occurred in August and September. In the year 2008, monsoon hit Karachi on July 28 and after that there was only one light rainfall in August otherwise the monsoon of 2008 remained cloudy and dry. Will 2011 have same fate for Karachi? tell Pakistan Weather Portal (PWP) now;
Monsoon update 2011
India
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Depression over India persists!
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Rains reaching Rajasthan!
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Monsoon reaching Delhi in few days!
The Indian Meteorological Department (IMD) has issued their second long-range forecast for India which also states about the onset of monsoon over India.
“This year, setting in of southwest monsoon over Andaman Sea was delayed by about 10 days. However, it set over Kerala 3 days before its normal date of 1st June. Monsoon set in over most parts of South Arabian Sea, Kerala, some parts of Tamil Nadu, south Bay of Bengal and South Andaman Sea on 29th May 2011. Due to strengthening of cross-equatorial flow over Arabian Sea and the northward movement of a vortex in the form of an upper air cyclonic circulation along the trough off the west coast, monsoon further advanced rapidly and covered entire Kerala, Tamil Nadu and Goa, most parts of Karnataka and some parts of south Andhra Pradesh by 5th June. However, during 6th – 10th June, there was a short hiatus in the further advance of monsoon along the west coast. On the other hand, the eastern branch of monsoon advanced over some more parts of Bay of Bengal and northeastern states, with a delay of nearly 5 days. By 13th June, associated with the formation of a Depression over north Bay of Bengal, the monsoon advanced into some more parts of Arabian Sea, parts of Saurashtra and most parts of the Bay of Bengal and parts of coastal Andhra Pradesh and coastal Orissa. On 15th June, monsoon further advanced over some more parts of Maharashtra, most parts of Telangana and Orissa, remaining parts of coastal Andhra Pradesh, Bay of Bengal, West Bengal and some parts of Chhattisgarh, Jharkhand and Bihar.”
Overall the monsoon rains have covered many parts of India due to the deep depression BOB 02 that formed on June 16. Under its influence heavy to very heavy rainfall likely over Madya Pradesh and adjoining provinces of India. While the final resting places of BOB 02 will be North-eastern Gujarat and adjoining Rajasthan, where light to moderate rainfall with isolated heavy rainfall is likely from June 22 till June 24.
Pakistan and Pre-monsoon madness
“It’s a very Punjab-friendly monsoon this year.”
First pre-monsoon: Sargodha is the wettest!
The first pre-monsoon rainfall of Pakistan occurred on June 18, much early than expected, that caused the overall high temperatures in North-eastern Punjab, parts of Khyber, Azad Kashimr, FATA and Giglit to decrease. A weak western dusturbance interacted with the Arabian sea’s moisture that caused the first pre-monsoon showers in those areas. Parts of Khyber, Balochistan, Gilgit and FATA are not a monsoon region, they also got good rainfall due to the presence of western disturbance. Following are the quantity of rainfall recorded during the first pre-monsoon activity;
- Sargodha got 142 mm from June 18 till June 21. (highest in Pakistan)
- Lahore got 106 mm from June 17 till June 19.
- Islamabad got 100 mm from June 18 till June 20.
Other parts of Punjab had below 50 mm rainfall, while the quantity was much less in Khyber and Azad Kashmir. This spell of pre-monsoon is over now. But the intensity will be weak as the Arabian sea moisture will not get any support from western disturbance. Sindh remained under the grip of heat wave while lower Sindh remained under clouds especially coastal parts.
Second pre monsoon
The second spell is likely from tonight, it will be weak in intensity due to lack of intense moisture from Arabian sea and western disturbance. Drizzle to light rain expected in the same provinces and regions.
While in Sindh, the remnants of deep depression BOB 02 that will be over North-eastern Gujarat on June 22 might cause cloudy weather with light drizzle from June 23. This forecast is also for Karachi.
Third and last pre-monsoon
The last pre-monsoon rainfall is likely from June 28 till June 30, heavy rainfall with strong winds likely in Punjab, parts of Khyber and Azad Kashmir. Monsoon is likely to hit Southern Punjab as well during this period. For Sindh?
Well, as southern Punjab is expected to get moderate to heavy rainfall from June 28 so some thunderstorms might pop up over upper Sindh including Sukkur. But these thunderstorms will be weak and stray, might cause light rainfall.
As for lower Sindh including Karachi, no rainfall expected as per latest forecast but the intensity of winds is likely to increase from fast (32km/h) to strong (44km/h) to very strong (56 km/h).
After that, the monsoon will begin. Monsoon may hit Karachi after July 15, while Punjab, parts of Khyber and Azad Kashmir may get monsoon rainfalls from first week of July.
Pakistan Weather Portal (PWP) 