Today’s Weather: Significant Saharan Dust — 20% Chance For Heavy Afternoon Shower; 33°C Max25/4/2024 According to the Trinidad and Tobago Meteorological Service (TTMS), we can expect partly cloudy and hazy conditions today (Thursday 25th April, 2024), with a few showers from late morning into the afternoon. There is the low (20%) chance of an isolated heavy shower favouring the afternoon. Haziness and cloudiness are expected to gradually decrease as the evening/night progresses.
The Met Office notes that there is a significant concentration of Saharan dust in the atmosphere. Persons sensitive to this change in air quality are advised to take the necessary precautions. The forecast maximum temperature today will be 33°C at Piarco in Trinidad and 32°C at Crown Point in Tobago. Seas are moderate with waves 1.5m to 2m in open waters and 0.5m to 1m in sheltered areas. Please continue to pay attention to the latest forecasts, alerts, and information issued by the TTMS.
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The Environmental Management Authority (EMA) is advising the public that the current air quality level has registered UNHEALTHY on the Air Quality Index (AQI) at the EMA's Monitoring Stations in Toco and Port-of-Spain at 11:00 AM this morning (Monday 22nd April, 2024).
The increase in Particulate Matter (PM) is attributed to Saharan dust and the levels range between 151 - 153. According to the EMA, “Everyone, in particular, sensitive groups including older adults, children and individuals with heart or lung disease, respiratory ailments and allergies are strongly advised to avoid prolonged or heavy exertion.” The AQI levels at the Monitoring Stations at Scarborough, Point Lisas, Mayaro, San Fernando and Arima range between 117 to 143, representing air quality that is UNHEALTHY for SENSITIVE GROUPS. Members of the public are advised to visit the EMA's website and social media pages for daily updates on air quality in Trinidad and Tobago. Real-time updates on air quality can also be accessed via this link: https://ei.weblakes.com/RTTPublic/DshBrdAQI.
About the AQI
The EMA, through the National Ambient Air Quality Monitoring Network has been obtaining accurate, real-time assessment of ambient air quality at strategic points nationally. The Air Quality Index (AQI) is a number used by Government agencies to communicate to the public how polluted the air currently is, or how polluted it is forecast to become. As the AQI rises, an increasingly large percentage of the population is likely to experience severe adverse health effects. There are currently seven (7) Ambient Air Quality Monitoring stations in Trinidad and Tobago. Six (6) are located in Trinidad (Toco, Mayaro, Arima, Port-of-Spain, Point Lisas and San Fernando) and the seventh station is located at Signal Hill, Tobago. Please be guided accordingly. According to the Trinidad and Tobago Meteorological Service (TTMS), we can expect mostly dull, hazy and breezy conditions at times today (Monday 22nd April, 2024), with a low chance of brief isolated showers. Tonight will be mostly fair despite isolated early morning showers.
A moderate to high concentration of Saharan dust is present. Persons sensitive to changes in air quality are advised to exercise the necessary precautions. The Met Office notes that significant concentrations of Saharan dust are expected to persist throughout the week. The forecast maximum temperature today will be 34°C at Piarco in Trinidad and 33°C at Crown Point in Tobago. Seas are slight to moderate with waves 1m to 1.5m in open waters and below 1m in sheltered areas. Please continue to pay attention to the latest forecasts, alerts, and information issued by the TTMS. According to the Trinidad and Tobago Meteorological Service (TTMS), a significant increase in thickness of Saharan dust is expected from today (Saturday 20th April, 2024), increasing in concentration as the day progresses. This Saharan dust outbreak of mostly high concentrations is expected to last until next week. Persons who are susceptible to these changes in air quality are advised to take appropriate precautions.
Partly cloudy and hazy conditions are expected today, with occasional light to moderate showers occurring in varying localities. There is also a medium (40%) chance of a few heavy showers and thunderstorms, particularly near hilly and Western areas. Tonight will be fair but hazy. The Met Office notes that gusty winds and street flooding may occur near heavy showers and thunderstorms. The forecast maximum temperature today will be 33°C at Piarco in Trinidad and 32°C at Crown Point in Tobago. Seas are moderate with waves 1m to 1.5m in open waters and 0.5m to 1m in sheltered areas. Please continue to pay attention to the latest forecasts, alerts, and information issued by the TTMS. As the Rainy Season approaches, the Ministry of Health is reminding the public to take proactive steps to protect themselves from mosquito bites.
In a Media Release on Thursday (18th April, 2024), the Ministry notes that mosquito-borne diseases such as Dengue, Chikungunya and Zika are transmitted by the Aedes aegypti mosquito. Pregnant women in particular are urged to take greater precautions to protect themselves from mosquito bites due to the harmful effects of the Zika virus, which can cause low birth weight, premature birth and/or foetal abnormalities. Citizens are therefore urged to reduce mosquito breeding grounds within flower pot saucers, vases, tyres, buckets, barrels, plastic drums and water storage containers. These items, including guttering and drains, must be regularly cleaned, removed, turned over or treated, as applicable. Other vulnerable groups, such as the elderly and children, are also advised to utilize the following personal protective strategies:
Citizens wishing to contact the Insect Vector Control Division (IVCD) for vector control measures can call 612-4823, ext. 5456/5402. Please be guided accordingly. According to the Trinidad and Tobago Meteorological Service (TTMS), hot and hazy conditions today (Friday 19th April, 2024) will be interrupted by cloudy periods with a few showers. There is the 40% (medium) chance of a heavy shower or thunderstorm during the early afternoon in a few areas. Tonight will be warm and hazy.
Gusty winds, street and flash flooding may occur in heavy showers and thunderstorms. The Met Office notes that a moderate amount of Saharan dust is present in the atmosphere. Sensitive persons are advised to take the necessary precautions. The forecast maximum temperature today will be 33°C at both Piarco in Trinidad and Crown Point in Tobago. Seas are moderate with waves 1.5m to 2m in open waters and below 1m in sheltered areas. Please continue to pay attention to the latest forecasts, alerts, and information issued by the TTMS. According to the Trinidad and Tobago Meteorological Service (TTMS), we can expect mostly dull and hazy conditions today (Thursday 18th April, 2024), except for some partly cloudy afternoon periods, accompanied by light to moderate isolated showers. There is a low (20% to 30%) chance that some of these showers could become heavy and/or thundery near the Southern coastal areas of Trinidad.
Tonight will be dull and hazy, except for some brief isolated showery interruptions. Gusty winds, street and/or flash flooding may accompany heavy showers and/or thunderstorms. The Met Office notes that Saharan dust is present in our atmosphere. Persons sensitive to this phenomenon should take the necessary precautions. The forecast maximum temperature today will be 32°C at Piarco in Trinidad and 31°C at Crown Point in Tobago. Seas are moderate with waves 2m to 2.5m in open waters and 1m to 1.5m in sheltered areas. Please continue to pay attention to the latest forecasts, alerts, and information issued by the TTMS. According to the Trinidad and Tobago Meteorological Service (TTMS), a passing frontal system to the North of the Lesser Antilles will continue to produce a perturbation (trough) and low-level convergence across the Leeward Islands for this outlook period (Thursday 18th to Monday 22nd April, 2024). This is expected to bring some partly cloudy to cloudy periods, interrupting some sunshine, with light or moderate showers in varying areas, and the chance for isolated heavy showers or thunderstorms.
Mostly ridging and fair weather for Trinidad and Tobago and the Windward Islands on Thursday (18th April, 2024), but with some low-level convergence and patches of moisture advection, together with interactions with the local topographies and daytime land heating, there are likely to be interruptions to the sunshine at times, to produce a few light or moderate showers over varying areas. There is also a chance for an isolated heavy shower to develop, favoring Tobago, Northeast Trinidad, Western Trinidad and hilly areas. From Friday (19th April, 2024) to Saturday (20th April, 2024), an induced trough, being influenced by a low pressure area and frontal system to the North-Northeast of the Lesser Antilles, will move across Trinidad and Tobago and the Lesser Antilles. This is expected to cause increased surface convergence and equatorial moisture build-up over Trinidad and Tobago and the Windwards, producing partly cloudy to cloudy periods, interrupting some sunshine, with light to moderate showers in varying areas. With assistance of a divergent flow in the upper atmosphere for deep convective activity to develop, there are enhanced probabilities for the development of isolated heavy showers or thunderstorms, during this time. On Friday (19th April, 2024), with low-level convergence and moisture moving across Trinidad and Tobago from the Southeast to East, we can lookout for a heavy shower or isolated thunderstorm (30% to 40% chance), favoring offshore Southeast Trinidad, South and Western Trinidad, and hilly areas, mainly during the late morning to afternoon. On Saturday (20th April, 2024), from the pre-dawn hours into the afternoon, there is likely to be a few moderate or heavy showers in varying areas, with a 30% to 40% chance for the development of isolated thunderstorms. Estimated accumulations of precipitation over the two (2) days (Friday and Saturday) range between 15mm to 25mm, where the heavier showers develop. In the event of a heavy shower or thunderstorm, winds can become gusty and street or flash flooding is likely in the vicinity. Analysis of the near-surface to mid-level (approx. 8,000 ft) synoptic wind-field across Trinidad and Tobago is showing intermittent increases in speed during this outlook period. Breezy to windy conditions are possible at times, especially in elevated areas or in the vicinity of any shower which might occur. Saharan dust concentration in the atmosphere is mostly moderate at present. However, from Saturday (20th April 2024), Saharan dust concentration in the atmosphere is expected to increase to high for the remainder of this outlook period. The Met Office notes that we are still in the Dry Season, and on the drier days, the probability for bush and brush fires, together with the possibility for landfill and forest fires, remain elevated, and together with the Saharan dust, these will contribute to the reduction in air quality at times. Sensitive persons are advised to take precautions as necessary. In the vicinity of showers, the seas can become choppy at times. Always take the necessary precautions in any marine activities. Please continue to pay attention to the latest forecasts, alerts, and information issued by the TTMS. According to the Trinidad and Tobago Meteorological Service (TTMS), we can expect mostly fair, hazy and at times breezy conditions today (Wednesday 17th April, 2024), except for some brief, light to moderate showery interruptions. Tonight will be mostly fair and hazy. Gusty winds may accompany moderate showers.
The Met Office notes that Saharan dust is present in our atmosphere. Persons sensitive to this phenomenon should take the necessary precautions. The forecast maximum temperature today will be 33°C at Piarco in Trinidad and 31°C at Crown Point in Tobago. Seas are moderate with waves 2m to 2.5m in open waters and 0.5m to 1m in sheltered areas. Please continue to pay attention to the latest forecasts, alerts, and information issued by the TTMS.
According to the Trinidad and Tobago Meteorological Service (TTMS), a developing low pressure area, and associated frontal system to the Northeast of the Lesser Antilles, will continue to produce perturbations (troughs) across the Leeward Islands. This is expected to bring some partly cloudy to cloudy periods with light or moderate showers in varying areas, and the chance of an isolated heavy shower or thunderstorm over the Leeward Islands, during this outlook period — Tuesday 16th to Saturday 20th April, 2024.
Although Trinidad and Tobago and the Windward Islands will be in a generally ridging pattern, during Tuesday (16th April, 2024) into Thursday (18th April, 2024), low-level convergence and patches of moisture advection, together with interactions with local topographies and daytime land heating, are likely to interrupt the sunshine at times, to produce a few light or moderate showers over varying areas. There is also a chance for an isolated heavy shower to develop, favouring hilly areas. From Friday (19th April, 2024) to Saturday (20th April, 2024), the effects of a trough, being influenced by a low pressure area to the Northeast of the Lesser Antilles, will extend Southward into Trinidad and Tobago and the Windward Islands. This will cause increased surface convergence and equatorial moisture build-up across Trinidad and Tobago and the Windwards. With some assistance of divergence in the upper atmosphere for deep convective activity to develop, partly cloudy to cloudy periods, producing light to moderate showers in varying areas, and isolated heavy showers or thunderstorms, are likely during this time. On Friday (19th April, 2024), for Trinidad and Tobago, the Met Office says we should be on the lookout for a heavy shower or isolated thunderstorm favouring offshore Southeast Trinidad, Western Trinidad and hilly areas, mainly during the late morning to afternoon. On Saturday (20th April, 2024), from the pre-dawn hours into the afternoon, there is likely to be a few moderate or heavy showers around Trinidad and Tobago, with a 30% to 40% chance for the development of isolated thunderstorms. In the event of a heavy shower or thunderstorm, winds can become gusty and street or flash flooding is likely in the vicinity.
The surface to mid-level (approx. 6,000 ft) synoptic wind-field across Trinidad and Tobago and the Windward Islands, is expected to show an increase in speed during this outlook period. Breezy to, at times windy conditions are likely, especially in elevated areas or in the vicinity of any shower which might occur. Although this would provide some ventilation, the maximum daytime temperatures can still get up into the mid-thirties of degrees Celsius on the days without much cloud coverage.
Mild to moderate concentrations of Saharan dust are presently in the atmosphere. From Wednesday (17th April, 2024) Saharan dust concentration in the atmosphere is expected to increase to moderate to high at times for the outlook period. The Met Office notes that we are still in the Dry Season, and on the drier days, the probability for bush and brush fires, together with the possibility for landfill and forest fires, remain elevated, and together with the Saharan dust, these are likely to continue to contribute to the reduction in air quality at times. Sensitive persons are still advised to take precautions as necessary. Due to the expected increase in wind speeds across the equatorial waters to the East of Trinidad and Tobago and the lesser Antilles, and in the vicinity of showers, the seas can become choppy at times with a likely increase in wave heights in open waters. Always take the necessary precautions in any marine activities. Please continue to pay attention to the latest forecasts, alerts, and information issued by the TTMS. |
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