27th Night :

Cyclone "Ditwah" forms over Sri Lanka. 

CURRENT STEERING MECHANISM: 

*LOW-LEVEL SUBTROPICAL RIDGE (STR)

TO THE EAST AND SOUTHEAST.... SYSTEM WILL Skirt T. N. COAST

*Land friction effect

*South-West wind flow will weaken it fast

*Poor TPW support.. Weakening the System. 

Outlook for the weekend 28thNov. - 1st Dec. 

For T. N & A. P. Coast

For Mumbai and Pune.

Mumbai: FAQ..(i) Has the Mumbai winter gone (ii) will the pollution reduce soon.

We have explained the cause of the pollution in our previous post... Weather related. 

Mumbai can expect a change in winds from Saturday... Hence pollution can reduce from Sunday.

Temperatures are expected to become slightly better from Sunday when 

Mumbai can expect a nominal fall in night Temperatures by 2/3°...to become around 19/20°.

Pune : After a rise in night Temperatures seen recently, a fall to 12/13° from Sunday 30th November ...definitely better and cooler

26th November 

Much discussion is taking place on the Pollution topic...and Delhi 👇seems to be the most " on line".

But, Mumbai 👇 is also now seeing polluted air since a few days.

 

Mumbaikars Blame smoke, construction, gases or even a far away volcano erupting.

But, the real reason is the weather condition..."Temperature Inversion ".

*What is a Temperature Inversion?

A temperature inversion occurs when air temperature increases with height, instead of decreasing. This creates a stable “cap” of warm air above cooler air near the surface.

*Why it causes discomfort? 

1. Stability and Lack of Mixing

Cool air below is dense and heavy. Warm air above is lighter.

This stops vertical mixing, locking the cool air in place.

2. Pollution Trapping

Smoke, dust, vehicle emissions, industrial pollutants, and even natural aerosols remain near the ground.

This can lead to haze, smog, respiratory discomfort, and low visibility, especially in urban basins

*Common Situations Where Inversions can Form

-Clear, calm nights: Ground cools rapidly → air near surface cools faster.

-Valleys and basins: Cold air sinks and gets trapped.

-Coastal regions: Sea breezes and cold ocean currents help form marine inversions.

-Winter: Longer nights and weaker sunlight make inversions more frequent and longer-lasting.

26th Noon (Revised):

(A) Cyclonic Storm "Senyar" [Pronunciation: 'Sen-yar'] over Strait of Malacca and adjoining Northeast Indonesia and

Very likely to maintain the intensity of cyclonic storm for next 24 hours and then weaken gradually.

IMD revises Path from previous Track..

(B)  (B) Well Marked Low pressure area over southwest Bay of Bengal and adjoining areas of Southeast Sri Lanka & Equatorial Indian Ocean...Likely to move NNE and become a depression....IMD

---------------------------------------------------------------

25th Night...11 pm

Many international agencies classify and track “Tropical Cyclone 04B” using 1‑minute average sustained winds, while IMD uses 3‑minute averages and its own classification/tracking conventions, so numbers and even timings can look different but refer to the same system.

Both methods are valid; they just follow different World Meteorological Organization–accepted practices.

Wind averaging differencesIMD defines maximum sustained wind as the highest 3‑minute mean wind at 10 m height within the cIyclone circulation.

Agencies like the U.S. National Hurricane Center and Joint Typhoon Warning Center use a 1‑minute mean wind at 10 m.Because a 1‑minute average captures shorter gusts, 1‑minute “sustained wind” values .

Tracking differencesAgencies use slightly different analysis techniques (satellite methods, model blends, weighting of observations), which can give small differences in estimated position, track, and intensity at a given time.

BB 18 Negligible Movement 

 

More than 60 schools closed as temperatures plunge to -6C

3 days ago

Leigh BoobyerBBC Wales

More than 60 schools across parts of Wales are closed as icy conditions saw temperatures drop as low as -6C (21.2F) overnight.

According to Pembrokeshire, Carmarthenshire and Ceredigion councils, 62 schools have been closed on Friday because of overnight wintry showers that turned to ice.

The Met Office said the conditions led to icy patches in low-level areas, while higher levels had seen snowfall of between 1cm (0.39in) and 3cm (1.18in). A yellow weather warning for ice was in place until 11:00 GMT.

National Grid said hundreds of properties that suffered power cuts in West Wales and Pontypridd on Thursday had since had power restored.

A polar vortex disruption not seen this early in 25 years could hit Minnesota hard

The polar vortex could be disturbed in a way that hasn't happened this early in 25 years.

You’d be forgiven for being skeptical of a cold, snowy December. Recent years have often brought late starts to winter. The last colder-than-normal December (using the modern 1991–2020 average, which is much warmer than historical baselines) was in 2022.

Only four of the past 15 Decembers have been colder than normal. Even winters that eventually turned out decent — ending up normal or cold — started warm in December.

Video. Arctic cold wave brings heavy snowfall to northern Spain

• 
• 
• 
• 
• 

Updated: 22/11/2025 - 10:30 GMT+1

Heavy snowfall driven by an Arctic air mass has transformed northern Spain into a winter landscape, disrupting travel, activating weather alerts.

Heavy snowfall has transformed northern Spain into a winter scene in mid-November, marking the coldest day of the autumn.

An Arctic air mass brought snow down to 600 meters in several provinces, forcing local councils to activate emergency plans as roads were affected and snowplows worked nonstop.

Orange weather alerts were issued in Asturias, Cantabria and parts of León and Burgos.

In the Pyrenees, temperatures dipped to –14°C, bringing up to 45 cm of snow and boosting hopes for the ski season.

Weather Knowledge- 64

• Stratospheric Warming Watch: Polar Vortex Collapse has begun, with cold air and snowfall impacts expected....Weather Knowledge Blog -64
• 
  

Outlook for the week Monday 24th - Friday 28th November :

With the system mentioned (Bb18) showing slower movement, let's expect mainly dry weather for India. 

Maharashtra and Gujarat: Dry weather. Day night Temperatures around normal ( no cold spells).

Active NEM in South Tamil Nadu

 

23rd November Morning

BB 17 forming today.. Initial Outlook... Intensifying fast. 

Maharashtra Warming as forecasted:

Outlook for Weekend 21st - 24th November.

Friday 21st through Monday 24th

For Mumbai & Pune:

The pleasant weather giving way to higher temperatures...as dry NE winds will dominate with lower humidity averaging 45-50%.

Mumbai: Temperatures warmer in the 34/35°c ( Day) & 20/21°c (Night).

Pune: Warmer at 32°c (Day) and 14/15°c (Night).

Sambhajinagar: 31°c( Day) & 14°c(Night).

Nagpur: Constant temperatures in the 29°c( Day) and 12°c(Night).

 

19th November 

MIN MAX TEMPs 24 HOURS ENDING 08 30 AM 19.11.2025

BORIVALI. 21.2 ° - 31.0 ° 

BADLAPUR. 15.5 ° - 31.0 °

DEONAR. 18.5 ° - 33.0 °

THANE. 20.6 ° - 31.3 °

Scz 16.2c.. Lowest of the season

Colaba 21.6c

W.S.Club 20.3c

Dehu Road minimum temperature: 9.7°C

Pashan, Pune :9.3°C

Bibwewadi,Pune: 11°C

Ahilyanagar: 8.5°C

Pune IMD: 9.5°C

Nashik IMD: 9.7°C

Chhatrapati Sambhajinagar: 10.5c

Indore: 6.9°C

 18th Post

18th Morning Temperatures 

Scz IMD ..17.4c.. Lowest of season.

Colaba: 21.5c

W.S.Club: 20.1c

Pune IMD: 9.4°C

Bibwewadi: 11.5°C..Lowest of the season.

Khed Shivapur, Pune: 8.5°C

Kapurhol, Pune: 7.5°C.

Mahabaleshwar  10.0c

Gudhe, Satara: 7.3°C

Patryachiwadi, Kolhapur: 8.1°C: 

Nashik IMD: 9.2°C

Chhatrapati Sambhajinagar: 10.6°C

 Ahilyanagar: 8.4°C

Adhale Kh, Pune: 7°C

Pimpalgaon Basavant (Niphad Nashik) 6.2°C

New Delhi: 9.6°C

Rohtak: 9.6°,  

Indore: 7.7°C

Bhopal: 8.2°C

#Ghat top & plains Min on 18-11-25

#Mahabaleshwar 10°C

#Amboli 11.6

#Lonavala 11.9

#Karjat 12.3

#Badlapur 12.4

#Sawarde 12.6

#Dapoli 12.7

#Awalegaon 12.8

#Manor 13

#Nagothane 13.5

#Chiplun 13.6

#Kalyan & #Panvel 14.4

#Kudal 14.5

#Dombivli 15

#Uttan 15.2

#Vengurla 15.3

#Virar 15.4

#Dahanu 15.8

#Thane & #NaviMumbai 15.9

#Matheran 16.5

#Mumbai SCZ 17.4

#Ratnagiri & #Devgad 18.1

Compiled by Vagarians Abhishek,Abhijit &Shitij.

17th November Temperatures 

 Delhi safdarjung: 8.7c, lowest of the season

 Pune shivajinagar: 10.2c, Pashan: 9.8c lowest of season

 Indore: 7.2c (7.1c below normal)

 Bhopal: 5.2c (-9.2c below normal) Bhopal break the all time record of lowest minimum temperature for the month of november..6.1°c in 1941 

Courtesy Vineet 

Bubhaneshwar: 12.9c

1Coldest November in last 25 years

 G.Udayagiri,Odisha-5.4 c

Courtesy Mitan

 16th November

AQI.. Air Quality Index.. World Rankings 

And Mumbai 👇

Delhi... 👇

 

Maharashtra minimum temperatures on 16/11/2025 in °C:

1. Kapurhol, Pune: 7.8

2. Machutar, Mahabaleshwar: 7.9

3. Varvandi, Nashik: 8

4. Ichalkaranji, Kolhapur: 8.4

5. Panhala, Kolhapur: 8.6

6. Jalgaon IMD: 8.7

7. Mulshi, Pune: 8.8

8. Gudhe, Satara: 8.9

9. Shirdi, Ahilyanagar: 9

10. Panchgani, Satara: 9.1

11. Bhivri, Pune: 9.2

12. Chandgad, Kolhapur: 9.3°C

13. Paithan, Chhatrapati Sambhajinagar: 9.4

14. Ahilyanagar: 9.5

15. Patrayachiwadi, Kolhapur: 9.6

16. Rahimatpur, Satara & Malin, Pune : 9.7°C

17. Gondavale, Satara: 9.8

18. Pimpalwandi, Junnar: 9.9°C

19. Malavali, Pune: 10

20. Nashik IMD: 10.3

21. Gondia: 10.6

22. Yavatmal: 10.8

23. Pune IMD: 11.2

24. Parbhani: 11.7

25. Satara & Nagpur: 12

Compiled by Vagarian AbhishekApte 

14th November 

Cold Conditions as seen below👇

And no rains last week 👇

 12th November:

Last 3 Nights Cold Wave in West M.P.

Outlook for 13th -17th November:

Maharashtra, Gujarat, M.P... Dry.

Maximum- Minimum Temperatures 

Mumbai: Low humidity.

13th-15th: 31°- 19°

16th-17th: 18° ( 4°below normal)

Pune: Less humidity..cool nights

13th-15th: 30°-13°

16th-17th:30°-11° ( 4°below normal).

Mahabaleshwar: Sunny but cold in the nights:

13th-17th: 27°-12°( 3°below normal).

Surat/Bharuch: Cool nights.

13th-17th :31°-16°.

All India on 12th:

Hottest:

Coldest:

Deaths from Extreme Weather are Rapidly Declining...

 

Deaths from Extreme Weather are Rapidly Declining...

See Climatology Data Page on Vagaries.

10th November  Minimum temperatures:

Futher gradual drop in temp today:

Min on 10-11-25

Jalgaon 9.5

Nasik 10.8°c

#Amboli 11°

#Lonavala 11.6

Sambhajinagar 11.8

#Mahabaleshwar 12.3

#Nagothane 14.4

#Badlapur 14.8

#Karjat 15

#Matheran 15.4

#Dapoli 15.6

#Awalegaon 15.8

#Manor 16.6

#Sawarde 16.7

#Kalyan & #Panvel 16.8

#Virar & #Kudal 17

#Kosbad 17.4

#Uttan 17.5

#Thane & #NaviMumbai 17.7

#Vengurla 17.8

#Dahanu 18.2

#Mumbai SCZ 19

#Ratnagiri 19

Mumbai W.S.CLUB 20.8

Mumbai Colaba 22

Chandgad, Kolhapur: 10.1°C

 Rahimatpur, Satara: 11.1°C

Pashan, Pune IMD: 12.9°C

Delhi safdarjung: 10.4c, lowest of season

Srinagar: -0.1c, 1st below 0c temperature of season

Meerut: 10.5c, lowest of season

Jewar airport Noida AWS: 11.8c

Compiled by Vagarian Team: Abhijit Modak, AbhishekApte, Pavan,Vineetkumar.

9th November 6.30pm IST temperatures 

V/S

9th November:

Scz IMD 19.6°c. First sub 20°c of season

Colaba 22.4°c

W.S.Club 21.0°c

Badlapur 16.5c

Pune.14.3°c

Ahilyanagar: 12.5°C

Sambhajinagar 12.8°c

Mahabaleshwar 12.8°c

Jalgaon 10.5°c

Jeur 10°c

Lohegaon , Pune Imd 17.6c

Pashan, Pune IMD: 14°C

New Delhi Safdarjung 11.6°c

Indore: 7c, this is lowest minimum temperature recorded there in November since 1975:

Jabalpur: 9.8c, 6.4c below normal

Rewa: 9.9c, 5.3c below normal

Sagar: 11.5c, 6c below normal

Ujjain:10.5c, 4.3c below normal