GOVERNMENT OF INDIA

BHARAT MAUSAM VIGYAN VIBHAG

INDIA METEOROLOGICAL DEPARTMENT

REGIONAL METEOROLOGICAL CENTRE, CHENNAI-600 006

WEEKLY WEATHER REPORT FOR TAMILNADU AND PUDUCHERRY FOR

THE WEEK ENDING  28TH JANUARY  2015  /  8TH MAGHA, 1936 (SAKA)

SUMMARY OF WEATHER

 

Week’s Rainfall:

 

Excess

Ariyalur, Chennai, Cuddalore, Nagapattinam, Perambalur, Theni, Tiruvarur, Tiruchirapalli and Villupuram districts.

Normal

Kancheepuram and Thanjavur districts.

Deficient

Nilgiris district.

Scanty

Kanyakumari, Ramanathapuram, Tirunelveli, Tiruvallur districts, Karaikal and Puducherry. 

No Rain

Coimbatore, Dharmapuri, Dindigul, Erode, Karur, Krishnagiri, Madurai, Namakkal, Pudukkottai, Salem, Sivaganga, Tiruppur, Tiruvannamalai, Toothukudi,  Vellore and Virudhunagar districts.

 

The chief amounts of rainfall recorded in Centimetres are:

 

23/01/2015:Anaikaranchatram (Nagapattinam Dist), Sirkali (Nagapattinam Dist), Chidambaram AWS (Cuddalore Dist), Mayiladuthurai (Nagapattinam Dist), Parangipettai (Cuddalore Dist) 1 each.

 

24/01/2015: Cuddalore 2, Sethiathope (Cuddalore Dist), Jayamkondam (Ariyalur Dist), Pullambadi (Trichy Dist) 1 each.

25/01/2015: Periyar (Theni Dist) 2. 

Season’s Rainfall for the period from 01.01.2015 to 28.01.2015:

 

Excess

Dharmapuri, Dindigul, Karur, Krishnagiri, Namakkal, Perambalur, Salem and Tiruppur districts

Normal

Madurai, Sivaganga districts and Puducherry.   

Deficient

Chennai, Cuddalore, Kanyakumari, Theni and Tiruchirapalli districts. 

Scanty

Ariyalur, Erode, Kancheepuram, Nagapattinam, Nilgiris, Pudukkottai,  Ramanathapuram, Thanjavur, Tirunelveli, Tiruvallur, Tiruvarur, Toothukudi, Vellore,   Villupuram, Virudhunagar districts and Karaikal.

No Rain

Coimbatore and Tiruvannamalai districts.

 

Chief synoptic features and its associated weather:    

            An upper air cyclonic circulation was seen over Comorin area and neighbourhood and extended between 1.5 and 3.1 Kilometres above sea level on 22nd .

            A trough of low pressure area was seen over southwest Bay and adjoining Srilanka from 25th to 27th and was seen over Srilanka and neighbourhood on 28th.

 

Temperature: The minimum temperature were appreciably above normal at many places over the state on 22nd , 23rd ; at a few places on 28th and at one or two places on 24th, 26th and it were below normal at one or two places on 25th and 28th .

 

Rainfall: Rainfall occurred at isolated places over the state from 23rd to 25th  and on 28th . Dry weather prevailed on remaining days of the week.

 

 

Regional Meteorological Centre,                                                                                 (Dr. S.R. RAMANAN)

6, College Road, Chennai-6.                                                                                                  SCIENTIST ‘E’

Date: 28.01.2015                                                                    for Deputy Director General of Meteorology 

 

 

 

RAINFALL STATEMENT

 

 

Rainfall for the week ending

28th January 2015

Seasonal rainfall for the period from 01.01.2015 to 28.01.2015

Districts

Actual

(mm)

Normal (mm)

Departure (%)

Actual

(mm)

Normal

(mm)

Departure (%)

Ariyalur

4.0

0.5

700

4.5

20.0

-78

Chennai

3.2

0.5

540

14.0

19.9

-30

Coimbatore

0.0

0.3

-100

0.0

7.6

-100

Cuddalore

7.9

1.5

424

14.7

26.8

-45

Dharmapuri

0.0

0.4

-100

25.5

7.3

249

Dindigul

0.0

0.8

-100

32.6

18.3

78

Erode

0.0

0.1

-100

1.2

6.0

-80

Kancheepuram

0.9

1.1

-16

1.7

16.0

-90

Kanyakumari

0.6

3.8

-84

9.0

16.7

-46

Karaikal

0.4

2.1

-81

10.8

52.1

-79

Karur

0.0

0.0

-100

18.2

9.3

96

Krishnagiri

0.0

0.1

-100

6.5

4.8

34

Madurai

0.0

0.7

-100

11.9

13.0

-9

Nagapattinam

9.6

6.1

58

19.8

60.3

-67

Namakkal

0.0

0.0

-100

24.5

6.4

282

Nilgiris

1.2

2.5

-52

1.2

21.5

-94

Perambalur

2.0

0.5

300

22.3

12.6

77

Pudukottai

0.0

0.8

-100

2.9

22.6

-87

Ramanathapuram

0.3

2.2

-87

1.3

31.9

-96

Salem

0.0

0.4

-100

17.5

8.2

114

Sivaganga

0.0

0.8

-100

17.1

15.0

14

Thanjavur

0.9

0.8

18

1.8

25.6

-93

Theni

1.8

1.1

66

6.1

14.1

-57

Tirunelveli

0.4

3.4

-88

4.6

33.5

-86

Tiruppur

0.0

0.2

-100

9.2

6.9

33

Tiruvallur

0.2

1.0

-84

0.8

17.2

-95

Tiruvannamalai

0.0

1.1

-100

0.0

13.7

-100

Tiruvarur

3.5

2.0

76

3.5

39.6

-91

Toothukudi

0.0

3.2

-100

2.4

23.3

-90

Tiruchirapalli

1.2

0.5

133

10.2

13.1

-22

Vellore

0.0

0.2

-100

1.3

7.2

-82

Villupuram

1.2

0.7

70

3.0

17.4

-83

Virudhunagar

0.0

1.6

-100

2.5

17.5

-86

Puducherry

0.1

1.5

-93

19.1

16.6

15

Tamilnadu

0.8

1.1

-26

8.5

16.8

-49

Tamilnadu and

Puducherry

0.8

1.1

-26

8.5

16.8

-49

 

           

LEGEND:

Excess: 20% or more                                                              

Normal:   +19% to –19%

Deficient: -20% to –59%

Scanty: -60% to  -99%

No Rain:  -100 %

In calculation of excess, deficits and their  percentage, rainfall figures are taken to  0.1  mm.  (*) Rainfall less than 0.1 mm.

 

 

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