Isolated Afternoon Showers and Thunderstorms Forecast, Mainly Across Trinidad. Street Flooding Possible

The Takeaway: Isolated showers and thunderstorms are forecast across Trinidad this afternoon, becoming gradually settled by the evening. Mostly settled conditions persist across Tobago, with isolated showers possible.

There is the elevated threat for street and flash flooding, in addition to gusty winds, power outages, landslides and downed trees and utility poles.

This activity is due to daytime heating, sea breeze convergence and increased moisture due to the ITCZ still remaining across our region.

There are no alerts, watches or warnings in effect for Trinidad and Tobago from the Trinidad and Tobago Meteorological Service as of 12:45 PM

12:45 PM Thursday 19th September 2019 Weather Forecast
12:45 PM Thursday 19th September 2019 Weather Forecast

Winds are light, mainly from the south and south-southeast. This means in addition to sea breeze convergence triggering showers and thunderstorms across the Western half of Trinidad, isolated showers and thunderstorms may also focus along the East-West Corridor. Conditions will become settled by the evening.

  12:30 PM Thursday 19th September 2019 Radar Imagery from the Trinidad and Tobago Meteorological Service showing slow-moving showers and thunderstorms across Western Trinidad, with isolated showers elsewhere.
12:30 PM Thursday 19th September 2019 Radar Imagery from the Trinidad and Tobago Meteorological Service showing slow-moving showers and thunderstorms across Western Trinidad, with isolated showers elsewhere.

Locally Heavy Rainfall & Flooding: Next 24 hours – Based on the latest model runs on Thursday morning, from Thursday (2:00 AM) through Friday (2:00 AM), generally, over the 24 hour period, models are in agreement of fewer than 10 millimeters across Trinidad, little to no accumulation across Tobago with isolated totals up to 20-30 millimeters across parts of Trinidad.

Street flooding, particularly in flood-prone areas or areas with poor drainage, is likely as well as flash flooding in areas where more prolonged heavy rainfall.

Frequent Lightning: In addition, with thunderstorms, frequent lightning is likely. Lightning strikes have the potential to cause power dips and outages, destroy trees, utility poles and cause harm to life and property.

Gusty Winds: Gusty winds, generally between 40 and 55 KM/H are forecast. Gusty winds are most likely prior to, in the vicinity of, or occur during heavy showers or thunderstorms. With wind gusts up to 55 KM/H, whole trees are expected to be in motion and there may be some inconvenience when walking against the wind gusts. Light outdoor objects may topple or become airborne such as garbage cans, potted plants, loose galvanize or construction material and other outdoor furniture. Tents may jump. Older/weaker trees may fall, bringing down utility poles and lines.

High Wind Event Precautions
High Wind Event Precautions

Landslides: Heavy showers across the Northern Range may trigger landslides in landslide-prone areas. Particularly in areas that receive heavy rainfall, landslides and/or mudflows may occur across both islands. These landslides, in addition to gusty winds, may down trees, utility poles and impede traffic on roadways. There will be an elevated threat of landslides on Wednesday into Thursday.

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