EARLY WARNING SYSTEM IN DOM A.R.WARNASOORIYA DEPUTY DIRECTOR DEPARTMENT OF METEOROLOGY.

EARLY WARNING SYSTEM

IN DOM

A.R.WARNASOORIYA DEPUTY DIRECTOR

DEPARTMENT OF METEOROLOGY

MARINE AVIATION

PUBLIC

WARNINGS

AVIATION

SIGMETS AIRMETSWIND SHEAR

WarningAERODROME

Warning

CYCLONESTHUNDERSTORMS

VOLCANIC ASHTURBULENCE

ICING

POOR VISIBILITYSTRONG WINDSTURBULENCE

ICING

Thunder stormStrong winds

Tsunami

Communication facilitiesCommunication facilities

WMO GTS

ICAO AMHS

INTERNETSADISADS

EMAILFAX

RECEIVING OF TSUNAMI ADVISORIESRECEIVING OF TSUNAMI ADVISORIES

PTWC

JMA

EWC atDOM

RECEIVING OF TSUNAMI ADVISORIESRECEIVING OF TSUNAMI ADVISORIES

BIA GTS

CISN

CISN

Interim Service providers-PTWC,JMA Regional Tsunami Service Providers

(RTSP)-From 12th October 2011 India-ITEWC Australia-JATWC Indonesia- IndoTEWS Thailand-RIMES

WARNING DESSIMINATIONWARNING DESSIMINATION

user agencies of DOM forecast products and services from the national levelCoast Conservation Department, Building Department, National Housing Development Authority, Police Communication Division, Tourism Development Authority, National Water Supply and Drainage Board, Irrigation Department, University of Colombo, National Science Foundation,

American Red Cross, Agrarian Development Department, Central Environme

ntal Authority, Electricity Board, Disaster Management Center, National Building Research Organization, Department of Health, Sarvodhaya and Sri Lankan Red Cross Society

SHIPPING REPORTSHIPPING REPORTThe cyclonic storm in the SW Bay of Bengal located near 7.9N 84.5E RPT 7.9N 84.5E at 06/0830UTC. Intermittent showers or thundershowers, strong winds and rough seas are expected within 2 to 3 degrees of the above center.

Winds: Strong cyclonic winds over SW Bay of Bengal and fairly strong North-Easterly to North-Westerly winds over elsewhere.

WX:OCNL showers or thundershowers over SW Bay of Bengal and SCT showers or thundershowers over elsewhere srilanka area and neighbourhood.

FROM MET COLOMBO TO COLOMBO RADIO AND SL NAVYFLEET FORECAST Fleet forecast for area E 06/0600 Z- 1400ZThe cyclonic storm in the central Bay of Bengal has weaken in to a deep depression and located near 8.5N 86.2 E RPT 8.5N 86.2 E at 05/2030 UTC in the SW Bay of Bengal.Intermittent showers or thundershowers, strong winds and rough seas are expected within 2 to 3 degrees of the above center.ITCZ North limit approximately along;

02N 60E, 03N 75E & 05N 95EITCZ South limit approximately along;08S 60E, 05S 75E & 03S 95E Winds:North of ITCZ North limit;

West of 80E: NE to NW/ 10-20 KNOTS East of 80E: Cyclonic / 20-25 knots, gusting up to 30-35 knots

In between limits of ITCZ; W/10-20 knots, gusting up to 25 knotsSouth of ITCZ South limit; SE/10-20 knots, gusting up to 25 knotsWX:OCNL showers or thundershowers in sections; 10, 15,30,35,60 &75SCT showers or thundershowers in sections; 00, 05, 25, 40, 45, 50, 65 & 70ISOL showers or thundershowers in sections; 20, 80 & 85SEAS:Rough in sections 10, 15 30, 35, 50,55,80,85 and moderate elsewhere.

SP 09-01 SPECIAL WEATHER ADVISORY (No: 1) ISSUED AT 1400 HOURS, 10th APPRIL 2009.ISSUED BY EARLY WARNING CENTRE OF THE DEPARTMENT OF METEOROLOGYDue to the presence of active Inter Tropical Convergence Zone (ITCZ) in the vicinity of Sri Lanka, disturbed weather is expected to continue for a few days.Thundershowers will be fairly wide spread during the afternoon or night (after 12.00 noon.). Heavy falls sometimes associated with fairly strong winds and lightning activities will be experienced particularly over Southern half of the island. General public is kindly requested to take adequate precautions to minimize the damages caused by lightening activities.

WW 08-21 Signal level:-3 Colour: OrangeBAD WEATHER WARNING (Fifth Advisory) ISSUED AT 1700 HOURS, 06th DECEMBER 2008.(Issued by Early Warning Centre of the Department of Meteorology)The deep depression in the Bay of Bengal was located 350 km East of Trincomalee at 1500 hours today (06th). It is expected to move in a Northwesterly direction. Prevailing showery and windy weather conditions will continue in the Ampara ,Batticaloa. Trincomalee, Mulativu , Kilinochchi, Jaffna Polonnaruwa and Anuradhapura districts with more frequent showers by tomorrow (7th), with the approaching of to disturbance Sri –Lanka Northeast coast.Showers or thunder showers will extend to other areas too, with fairly heavy falls in places.Sea around the island and especially off Eastern, Northeastern and Northern coasts, will continue to be rough and windy during next two days.

WW 10-04 BAD WEATHER ADVISORY VALID FOR NEXT 12 HOURS FROM 1500 HOURS OF 18th MAY 2010.ISSUED BY EARLY WARNING CENTRE OF THE DEPARTMENT OF METEOROLOGYThe depression which was over the Bay of Bengal yesterday, has intensified in to a cyclonic storm and it has been named as “LAILA”. It is located about 600km northeast of Jaffna at 02.00 pm and moving North-westward towards India. The North and North- Eastern seas will experience frequent showers, strong winds and rough conditions.Sea areas around the island will experience strong winds and rough conditions.Due to the Cyclone “LAILA” the Western, Central, Sabaragamuwa provinces, Galle and Matara districts will experience rain or thundershowers with heavy falls at some places.Strong winds will also occur at times over the island especially in the South-western region.

(ISSUED AT 1600 HOURS ON 10th NOVEMBER 2010)WEATHER FORECAST FOR NEXT 36 HOURS Thundershowers will develop at several places inland during the afternoon and will spread to the South-western coastal areas latter.

Inter Tropical Convergence Zone (ITCZ-Active zone where the winds coming from Northern Hemisphere and Southern Hemisphere meet), lies just south of Sri Lanka causing thunder showers along and off the Southern coast.There may be temporary localized fairly strong winds during thundershowers.General public is kindly requested to take adequate precautions to minimize the damages caused by lightning activities.

TB01 Signal level:-1 WhiteTB01 Signal level:-1 White

AN EARTHQUAKE INFORMATION BULLETINAN EARTHQUAKE INFORMATION BULLETIN(Issued by the National Tsunami Warning Centre, Department of Meteorology at _______hours on _________________________ (Issued by the National Tsunami Warning Centre, Department of Meteorology at _______hours on _________________________ 2009)2009)

At ……hours today (……..) an earthquake with magnitude of …. in Richter scale has been reported from ------- Sumathra. An At ……hours today (……..) an earthquake with magnitude of …. in Richter scale has been reported from ------- Sumathra. An earthquake with this magnitude cannot generate ocean wide tsunami. Therefore, general public is advised to be calm. earthquake with this magnitude cannot generate ocean wide tsunami. Therefore, general public is advised to be calm.

Action required: Action required: No action requiredNo action required, , Information only Information only

Earthquake parametersEarthquake parameters Location: Coordinates:Location: Coordinates: Local time: Depth:Local time: Depth: Magnitude:Magnitude:

Duty Meteorologist Duty Meteorologist Department of Meteorology,Department of Meteorology,Bauddhaloka Mawatha,Bauddhaloka Mawatha,Colombo- 07.Colombo- 07.

EARTHQUAKE_____ OFF SUMATRA. NO TSUNAMI EXPECTED. PUBLIC ADVISED TO BE CALM.EARTHQUAKE_____ OFF SUMATRA. NO TSUNAMI EXPECTED. PUBLIC ADVISED TO BE CALM.

TB Signal level:-6 RedTB Signal level:-6 Red

Tsunami Warning BulletinTsunami Warning Bulletin(Issued by the National Tsunami Warning Centre, Department of Meteorology at _______hours on _________________________ (Issued by the National Tsunami Warning Centre, Department of Meteorology at _______hours on _________________________ 2009)2009)

Due to the earthquake which occurred near Sumatra Island at____ hrs today ( ___ _______ ), a Tsunami has been generated. Due to the earthquake which occurred near Sumatra Island at____ hrs today ( ___ _______ ), a Tsunami has been generated. Those living near the coast around the island, particularly in the Eastern and Southern regions are advised to evacuate to safe places. Those living near the coast around the island, particularly in the Eastern and Southern regions are advised to evacuate to safe places. As and when new information becomes available, they will be passed to the public through mass mediaAs and when new information becomes available, they will be passed to the public through mass media

Action required: Action required: Evacuate the coastal area, go to high grounds. Evacuate the coastal area, go to high grounds.

Earthquake parametersEarthquake parameters Location: Coordinates:Location: Coordinates: Local time: Depth:Local time: Depth: Magnitude:Magnitude:

Duty Meteorologist Duty Meteorologist Department of Meteorology,Department of Meteorology,Bauddhaloka Mawatha,Bauddhaloka Mawatha,Colombo- 07.Colombo- 07.

TSUNAMI HAS GENERATED. THOSE IN EAST, SOUTH COASTAL REGIONS ARE ADVISED TO TSUNAMI HAS GENERATED. THOSE IN EAST, SOUTH COASTAL REGIONS ARE ADVISED TO EVACUATE TO SAFE PLACES.EVACUATE TO SAFE PLACES.

FEEDBACK FROM STAKE HOLDERS

DURING AWARENESS POGRAMES MONSOON FORUM RAWING SEMINARS FOR FARMERS

Indigenous knowledge Indigenous knowledge Indigenous knowledge widely exists in the form o

f monitoring astrological calendar, stars, flowering, movement of animals and birds, winds and clouds, changes in comfort (body temperature,sweating) etc..

Indigenous knowledge is strong among the elders especially with farmers and fishermen. However they feel it is difficult to predict due to erratic weather and climate pattern

Limited knowledge among business communityIn some communities the knowledge is passed on

to younger generation while in others the younger generation rely only on DOM forecast

Thank You !