Live Updates: The ITCZ – A Multi-Day Rainfall Event (Day 1)

The ITCZ is forecast to affect Trinidad and Tobago between Tuesday 8th October and Friday 11th October 2019, bringing periods of showers and thunderstorms. This will trigger street and flash flooding. Models continue to trend towards a very wet week, so there is a low chance (as of Tuesday morning) of riverine flooding; downed trees, utility poles, and lines; landslides/landslips; power outages and hazardous seas. Live Updates for Tuesday 8th October 2019 has ended. An Adverse Weather Alert goes into effect for T&T at 6:00 AM Wednesday.


12:00 AM Wednesday 9th October 2019

Coverage for Day 1 of this ITCZ-driven rainfall event has ended. Head over to Day 2 for information and additional live-updates.



12:00 AM Wednesday 9th October 2019

Most of the heavy rainfall occurred across Eastern and Southern Trinidad on Tuesday, as well as across Tobago, with areas receiving between 1-2.5 inches during the 24 hour period. There were sporadic reports of street flooding across the island.

24-hour rainfall accumulations as the ITCZ affects Trinidad and Tobago on Tuesday 8th October 2019.
24-hour rainfall accumulations as the ITCZ affects Trinidad and Tobago on Tuesday 8th October 2019.


5:30 PM Tuesday 8th October 2019

At 5:00 PM, the Trinidad and Tobago Meteorological Service issued an Adverse Weather Alert Yellow Level, which goes into effect at 6:00 AM Wednesday 9th October 2019.



4:00 PM Tuesday 8th October 2019

Street flooding had been reported along the Guayguayare Mayaro Road, Manzanilla Mayaro Road, parts of Mayaro and parts of Penal and Debe. Generally, through the afternoon, places across Trinidad and Tobago accumulated between 12.5 millimeters (0.5 inches) to 62.5 millimeters (2.5 inches).



11:15 AM Tuesday 8th October 2019

Light showers ongoing across Tobago. Moderate to heavy showers and thunderstorms moving across parts of Southern and Central Trinidad. As forecast, this is gradually spreading across the island. Street flooding and gusty winds remain the main hazards.

11:15 AM Tuesday 8th October 2019 Radar Update
11:15 AM Tuesday 8th October 2019 Radar Update


10:15 AM Tuesday 8th October 2019

Heavy showers and thunderstorms are moving across Southeastern and Eastern Trinidad, while widespread light to moderate showers continue across Tobago. This activity is due to the ITCZ. Street flooding and gusty winds possible, and frequent lightning in thunderstorms.

10:15 AM Tuesday 8th October 2019 Radar Update
10:15 AM Tuesday 8th October 2019 Radar Update
10:15 AM Satellite Update as the ITCZ triggers strong showers and thunderstorms nearing T&T. Credit: Weathernerds
10:15 AM Satellite Update as the ITCZ triggers strong showers and thunderstorms nearing T&T. Credit: Weathernerds
Lightning across Southeastern Trinidad as thunderstorms move across the region.
Lightning across Southeastern Trinidad as thunderstorms move across the region.


8:00 AM Tuesday 8th October 2019

Over the next 12 hours, periods of rain, showers, and thunderstorms forecast to persist across both islands. Overcast to mostly cloudy skies. Heavier activity is forecast across Tobago and the Northern and Eastern halves of Trinidad. In heavy showers and thunderstorms, street/flash flooding and gusty winds in excess of 55 KM/H possible.

Note that high tide is at 1:36 PM, which may coincide with heavy showers across Port of Spain and Northwestern Trinidad. This may slow runoff of any street/flash flooding at the time.

8:00 AM Tuesday 8th October 2019 forecast for Trinidad and Tobago.
8:00 AM Tuesday 8th October 2019 forecast for Trinidad and Tobago.
8:00 AM Tuesday 8th October 2019 Trinidad and Tobago Impact Assessment for the ITCZ across Trinidad and Tobago. Note that this will be continually updated.
8:00 AM Tuesday 8th October 2019 Trinidad and Tobago Impact Assessment for the ITCZ across Trinidad and Tobago. Note that this will be continually updated.


6:15 AM Tuesday 8th October 2019

Scattered showers are moving across Tobago and the Northern half of Trinidad, with isolated thunderstorms and a cluster of heavy showers moving mainly across the Northern half of Trinidad. Gusty winds and street flooding remain the main threats with these showers. This activity is due to the ITCZ. Cloudiness and showers continue to increase across both islands this morning.

6:15 AM Tuesday 8th October 2019 Radar Imagery from the Trinidad and Tobago Meteorological Service as the ITCZ affects the region.
6:15 AM Tuesday 8th October 2019 Radar Imagery from the Trinidad and Tobago Meteorological Service as the ITCZ affects the region.

1:00 AM Tuesday 8th October 2019

As we expect different types of flooding across Trinidad and Tobago this week, it’s a good idea to familiarize yourself with the types of flooding we experience in Trinidad and Tobago.



12:45 AM Tuesday 8th October 2019

Isolated showers, generally light to moderate with heavy pockets, are moving across mainly Trinidad. These showers are fairly brief, lasting between 5-10 minutes. Additional showers approaching the island due to the ITCZ.

12:45 AM Tuesday 8th October 2019 Radar Imagery from the Trinidad and Tobago Meteorological Service as the ITCZ affects the region.


12:00 AM Tuesday 8th October 2019

As forecast, isolated to scattered showers have begun to move across Trinidad and Tobago with generally light to moderate rainfall. A few pockets may become heavy and be accompanied by gusty winds.

12:00 AM Tuesday 8th October 2019 Radar Imagery from the Trinidad and Tobago Meteorological Service as the ITCZ affects the region.
12:00 AM Tuesday 8th October 2019 Radar Imagery from the Trinidad and Tobago Meteorological Service as the ITCZ affects the region.


8:00 PM Monday 7th October 2019

Trinidad and Tobago Impact Assessment for Tropical Wave 53 & the ITCZ across Trinidad and Tobago. Note that this will be continually updated.
Trinidad and Tobago Impact Assessment for Tropical Wave 53 & the ITCZ across Trinidad and Tobago. Note that this will be continually updated.


7:00 PM Monday 7th October 2019

As Tropical Wave 53 moves westward, it dragged the ITCZ northward across T&T. The ITCZ is forecast to remain across our region over the next 4 days, bringing periods of showers and thunderstorms. There is an elevated threat of flooding due to the consistent periodic rainfall through Friday.


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