Rainfall accumulations of 2 to 4 inches (50 to 100 millimetres) are possible.
The Barbados Meteorological Services has issued a severe weather alert for Barbados.
That statement follows.
Severe Weather Information Statement for Barbados
An approaching tropical wave with axis now near 49/50°W is expected to begin affecting Barbados late Monday into Tuesday.
The system is showing some slow development at this time and it could become a tropical storm by the time it approaches Barbados and the southern windwards early Monday night .
THIS COULD REQUIRE THE ISSUING OF A TROPICAL STORM WATCH OR WARNING FOR BARBADOS AT LATE NOTICE.
Forecast models are indicating sustained surface winds of between 40 to 50 knots (45 to 55 mph) with higher gusts on the northern periphery of the system as it moves across the region. In addition, large easterly swells of 5 to 6m (16 to 20 ft) are also forecasted to accompany the system. Thus, a High-Surf Advisory and Small-Craft Warning will be in effect from 6:00 a.m Monday, 19th June, 2017.
Regardless of development, deteriorating conditions with pockets of moderate to heavy showers, thunderstorms occasional gusty winds are expected spread across Barbados by tomorrow night.
Rainfall accumulations of 2 to 4 inches (50 to 100 millimetres) are possible. Due to the already saturated nature of the soils, some flash-flooding is likely in low-lying areas. Residents are urged to be on the alert and take all necessary precautions.