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भारत सरकार

GOVERNMENT OF INDIA

भारत मौसम विज्ञान विभाग

INDIA METEOROLOGICAL DEPARTMENT

मौसम विज्ञान कें द्र, गगंटोक

METEOROLOGICAL CENTRE, GANGTOK

Daily Weather Bulletin of Sikkim (Evening) Friday 08th June 2018

Summary of observation recorded at 0830 hours IST

SUMMARY OF OBSERVATION RECORDED AT 0830 HRS OF 08-06-2018:

Available data indicates that rainfall occurred at most places over the state Sikkim.

Maximum temperature remained above normal by 3 to 4°C and Minimum temperature

remained above normal by 2 to 3°C over most of the stations in Sikkim. Highest Maximum

temperature 35°C was recorded at Mazitar (East Sikkim) and lowest minimum temperature

18°C was recorded at Gangtok (East Sikkim).

AMOUNT OF RAINFALL RECEIVED SO FAR IN CM RECORDED AT 0830 HRS OF 08-06-2018:

Tadong, Khanitar, Sankalan, Chungthang, Damthang, Dentam, Yuksom: 1 each;

SYNOPTIC SITUATION:

Southwest Monsoon has further advanced into some more parts of Central Arabian Sea, remaining parts of Goa, Karnataka and Rayalaseema, some parts of south Konkan, south Madhya Maharashtra, Marathawada, Vidarbha, south Chhattisgarh and south Odisha, entire Telangana, most parts of Coastal Andhra Pradesh, remaining parts of West Central Bay of Bengal and most parts of North Bay of Bengal. The Northern Limit of Monsoon (NLM) passes through Lat. 17°N/ Long. 60°E, Lat. 17°N/ Long. 70°E, Ratnagiri. Solapur, Nanded, Adilabad, Bailadila, Malkangiri, Kalingapatnam, Lat. 21°N/ Long. 90°E, Agartala, Lumding, north Lakhimpur and Lat. 29°N/ Long. 95°E. Conditions are favorable for further advance of Southwest Monsoon into some more parts of Central Arabian Sea,, Maharashtra ( including Mumbai), Chhattisgarh & Odisha and remaining parts of Coastal Andhra Pradesh during next 24 hours. Conditions are very likely to become favorable for further advance

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of Southwest Monsoon into most parts of Arabian Sea, remaining parts of Maharashtra, some parts of south Gujarat region, southern parts of Madhya Pradesh, some more parts of Chhattisgarh and Odisha, some parts of West Bengal & Sikkim, remaining parts of Northeastern States and Bay of Bengal during the subsequent 48 hours.

The EastWest trough from northwest Rajasthan to Bangladesh, across south Haryana, south Uttar Pradesh, Jharkhand and Gangetic West Bengal extending upto 1.5 km above mean sea level persists.

The cyclonic circulation over north Madhya Pradesh and adjoining south Uttar Pradesh extending upto 1.5 km above mean sea level embedded in the above trough persists.

The cyclonic circulation over Haryana & neighbourhood at 1.5 km above mean sea level persists.

The cyclonic circulation at 3.1 km above mean sea level over Jammu & Kashmir and adjoining Himachal Pradesh persists.

The cyclonic circulation over north Bay of Bengal & neighbourhood extending between 1.5 km & 7.6 km above mean sea level persists. Under its influence, a low Pressure area is very likely to develop over North Bay of Bengal during next 24 hours. It is likely to concentrate into a depression during the subsequent 48 hours and move towards Bangladesh Coast.

FORECAST FOR SIKKIM FOR NEXT 5-DAYS:

Day-1: Light to moderate rain very likely to occur at most places over the state.

Day-2: Light to moderate rain very likely to occur at most places over the state.

Day-3: Light to moderate rain very likely to occur at most places over the state.

Day-4: Light to moderate rain very likely to occur at most places over the state.

Day-5: Light to moderate rain very likely to occur at most places over the state.

WEATHER WARNING TO PUBLIC SERVICES INCLUDING IRRIGATION / RAILWAYS /

TELEGRAPHS / PUBLIC WORKS DEPARTMENT / COMMUNITY PROJECT OFFICIALS:

Day-1: Nil

Day-2: Nil

Day-3: Nil

Day-4: Nil

Day-5: Nil

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Weather Forecast Bulletin for: SIKKIM

Time of origin: 1730 hrs IST

Based on: 0900 UTC observations/Charts and available NWP model outputs

Date: Fri, Jun 08, 2018

Met. Sub-Division/

Parts thereof

Districts

Weather Forecast for 5 days Weather Outlook for

subsequent 2 days (i.e for Days 6 to 7)

(Valid from 0830 hrs IST of

DAY 1 DAY 2 DAY 3 DAY 4 DAY 5

(Valid from 1730 hrs IST of

(Valid from 0830 hrs IST of

(Valid from 0830 hrs IST of

(Valid from 0830 hrs IST of

(Valid from 0830 hrs IST of

Fri, Jun 08, 2018 Sat, Jun 09, 2018 Sun, Jun 10, 2018 Mon, Jun 11, 2018 Tue, Jun 12, 2018

upto 0830 hrs IST of upto 0830 hrs IST of upto 0830 hrs IST of upto 0830 hrs IST of upto 0830 hrs IST of Wed, Jun 13, 2018

Sat, Jun 09, 2018 Sun, Jun 10, 2018 Mon, Jun 11, 2018 Tue, Jun 12, 2018 Wed, Jun 13, 2018 upto 0830 hrs IST of

Forecast Warning Forecast Warning Forecast Warning Forecast Warning Forecast Warning Thu, Jun 14, 2018

SIKKIM

EAST SIKKIM

Wide-spread Nil Wide-spread Nil Wide-spread Nil Fairly

Widespread Nil Wide-spread Nil

Little Change.

RA / TS RA / TS RA / TS RA / TS RA / TS

WEST SIKKIM

Wide-spread Nil Fairly

Widespread Nil

Fairly Widespread

Nil Wide-spread Nil Wide-spread Nil

Little Change.

RA / TS RA / TS RA / TS RA / TS RA / TS

NORTH SIKKIM

Fairly Widespread

Nil Wide-spread Nil Fairly

Widespread Nil

Fairly Widespread

Nil Wide-spread Nil

Little Change.

RA / TS RA / TS RA / TS RA / TS RA / TS

SOUTH SIKKIM

Wide-spread Nil Fairly

Widespread Nil

Fairly Widespread

Nil Fairly

Widespread Nil

Fairly Widespread

Nil

Little Change.

RA / TS RA / TS RA / TS RA / TS RA / TS

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DISTRIBUTION OF RAINFALL OVER SIKKIM DURING PAST 24- HOURS

(TILL 0830 HRS IST OF 08.06.2018)

FORECAST FRIDAY 08TH JUNE 2018

(Valid upto 0830 HRS IST of 09-06-2018)

RAINFALL DISTRIBUTION WARNING

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FORECAST SATURDAY 09TH JUNE 2018

(Valid upto 0830 HRS IST of 10-06-2018)

RAINFALL DISTRIBUTION WARNING

FORECAST SUNDAY 10TH JUNE 2018

(Valid upto 0830 HRS IST of 11-06-2018)

RAINFALL DISTRIBUTION WARNING

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FORECAST MONDAY 11TH JUNE 2018

(Valid upto 0830 HRS IST of 12-06-2018)

RAINFALL DISTRIBUTION WARNING

FORECAST TUESDAY 12TH JUNE 2018

(Valid upto 0830 HRS IST of 13-06-2018)

RAINFALL DISTRIBUTION WARNING

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LEGEND

Probabilistic Forecast Terms Probability of Occurrence (%) Terms Probability of Occurrence (%)

Most Likely >75 Very Likely 51-75

Likely 25-50 Unlikely <25

Dry: No station reported rainfall

Intensity of Rainfall Very Light Rainfall: Trace -002.4 mm Light Rain: 002.5-015.5 mm

Moderate Rainfall: 015.6-064.4 mm Heavy Rainfall: 064.5-115.5 mm

Very Heavy Rainfall: 115.6-204.4 mm Extremely Heavy Rainfall: ≥204.5 mm

Exceptionally Heavy Rainfall: When the amount is a value near about the highest recorded rainfall at or near the station for the month or season. However, this term will be used only when the actual rainfall amount exceeds 12 cm.

Spatial distribution of Rainfall % of stations reporting Category % of stations reporting Category

76-100 Most places (Widespread) 51-75 Many places (Fairly widespread)

26-50 Few places (Scattered) 01-25 Isolated places

Dry: No station reported rainfall

Warning

No WARNING (NO ACTION) WATCH (Be updated)

ALERT ( Keep vigil) WARNING (Take action)