The Leeward Islands prepare for rain, thunderstorms and gusty winds from Tropical Wave

South Windward Islands prepare for thunderstorms and gusty winds as a strong Tropical Wave -Invest 98-L approaches the islands.

In St Vincent, SVG Meteorological Services said Wednesday that model guidance suggests that most of the intense activity associated with the system will occur south of SVG from today through tomorrow. However, rain accumulations of up to 50 mm (2 inches) with occasional higher amounts are still possible.

Wind speeds are likely to be between 35 and 50 km/h (20 to 30 mph) as of today, with higher gusts possible during shower activity.

A low-risk flash flood weather advisory remains in effect for the island, the Met Service said.

Wind speeds are likely to be between 35 and 50 km/h (20 to 30 mph) as of today, with higher gusts possible during shower activity.

In St. Lucia, The National Emergency Management Organization called for vigilance ahead of the weather system in a press release Tuesday night.

“The National Organization for Emergency Management [NEMO] alerts the public that the approaching tropical wave increases the risk of landslides, flooding and flash floods.”

“Residents and businesses in flood-prone areas should exercise extreme caution and familiarize their household with the nearest emergency shelter in the event an emergency evacuation is required,” NEMO said.

On Grenada A statement from the weather services at 5 a.m. said so

Grenada, Carriacou and Petite Martinique can expect cloudy to cloudy conditions with moderate to heavy showers and thunderstorms on Wednesday accompanied by gusty winds up to 35 mph.

As a result, the Met Office has issued a warning of a medium likelihood of flooding and landslides in vulnerable areas, and a strong winds advice and a navigation advice remain in place.

Possible effects:

– Medium probability of road and river flooding

– Medium probability of landslides and falling rocks

– Broken branches and shifting loose objects

– Agitated seas due to above-average swell

Further south in Trinidad and Tobago, Met Services have issued a Severe Weather Alert 1 – Level Yellow applicable to Trinidad and Tobago from 5:00 a.m. Wednesday 21 September 2022 to 8:00 p.m. Thursday 22 September.

The report states that showers and isolated, at times violent thunderstorms are expected over oceanic waters and over Trinidad and Tobago from Wednesday morning.

Impact on Trinidad and Tobago

This activity is said to be associated with an active tropical wave with development potential over the next few days.

Gusty winds of over 70 km/h and precipitation accumulations of 75 – 125 mm are to be expected.

Street or flash flooding is likely in areas with heavy downpours.

Impacts can include larger than normal waves in both open water and the Gulf of Pariah.

Branches and loose objects can be moved in strong winds.

Traffic delays are likely in flooded areas.

Expect lulls between rainfall and thunderstorm activity.

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