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WINTER FOG EXPERIMENT (WiFEX)
INDIAN INSTITUTE OF TROPICAL METEOROLOGY, PUNE, INDIA
भारतीय उष्णदेशीय मौसम विज्ञान संस्थान, पुणे, भारत
Ministry of Earth Sciences, Govt. of India

Fog Forecast
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Observation
Near Realtime Observation At Delhi
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Forecast
Fog Forecast

Bulletin & Message

IMD FDP Bulletin (19th Jan)


Fog:

 

 

Fog observed at 0830 hours IST of today: Dense to very dense fog in some parts over Punjab; in isolated pockets over Haryana, Chandigarh & Delhi, West Rajasthan and East Madhya Pradesh andModerate fog in isolated pockets over West Madhya Pradesh. Visibility recorded at 0830 hours IST of today (200 metres or less): Amritsar, Ludhiana, Pendra Road, Ganganagar, Churu and  Pilani-25 each; Patiala, Hissar, Bhiwani, Pantnagar, Narnaul and Seoni-50 each; Bundi, Shajapur and Bhopal-200 each.

 

Fog forecast -RH at lower levels is very likely to be between 80 to 100 % in morning hours over western and central parts of Indo-Gangetic plains and adj north Raj and N MP during on 19-21 Jan morning hours. Slight reduction in RH from 22nd  over northern plains.  Light winds  at 10 meter are also likely to prevail at lower levels on 20 and 21 morning with significant temperature inversion (1000-925 hPa) likely over northern parts of the country during next 2-3 days. 

·         Considering all these parameters and NWP model products for FOG, Dense to very dense fog very likely in some parts over Punjab, Haryana and Uttar Pradesh and Dense fog in isolated parts over Uttarakhand, north Rajasthan, north Madhya Pradesh, Sub-Himalayan West Bengal and Bihar during next 2-3 days. Due to likely prevail of strong low level westerly winds from night/morning of 22nd -23rd January, dense fog unlikely in most parts of north and central India from 22nd -23rd  night/morning.

Precipitation & hailstorm:

A fresh Western Disturbance likely to affect Western Himalayan Region and plains of northwest India from 20th January. Under its influence, fairly widespread to widespread rain/snow likely over western Himalayan region during 20th-21st January and reduce significantly thereafter. This system is unlikely to affect significantly on northern plains. However, On 21 Jan under its influence, Thunderstormaccompanied with hail & lightning very likely at isolated places over Himachal Pradesh and Uttarakhand.

Cold wave & day:

 

Cold day conditions very likely in isolated parts over Punjab, Haryana and Madhya Pradesh during next 2 days and improve thereafter. Cold wave conditions very likely in isolated parts over Saurashtra & Kutch today and improve thereafter.

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Mid Visibility IGIA
Forecast
Current AQI
X

Visibility Range

CAT - IIIC

VISIBILITY: Below 50 M

CAT - IIIB

VISIBILITY: FROM 50M TO 174M

CAT - IIIA

VISIBILITY: FROM 175M TO 299M

CAT - II

VISIBILITY: FROM 300M TO 549M

CAT -I

VISIBILITY: 500M AND ABOVE

X

Air Quality Index Range

Good

AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.

Satisfactory

AQI: Satisfactory (51 - 100)
Air quality is considered satisfactory, and air pollution poses little or no risk.

Moderate

AQI: Moderate (101 - 200)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Poor

AQI: Poor for Sensitive Groups (201 - 300)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.

Very Poor

AQI: Very Poor (301 - 400)
Health alert: everyone may experience more serious health effects.

Severe

AQI: Severe (401 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.

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