DATE ISSUED: Tuesday, September 10, 2019 @ 12:00 LST (16:00 UTC)

VALID UNTIL: Wednesday midday (12:00 LST) September 11, 2019



This afternoon through Wednesday midday: Partly cloudy with isolated showers possible.


Forecast High: 32°C / 90°F                     Forecast Low: 27°C / 81°F


Sunset Today: 6:19 P.M.               Sunrise Tomorrow: 6:00 A.M.


SURFACE WINDS:  This afternoon through Wednesday midday: East southeasterly to east northeasterly with a light to gentle breeze of 04 to 12 mph, becoming lighter and variable at times.



A loose pressure gradient will maintain mostly light winds across the region. Weak instability and available moisture associated with a tropical wave, may cause isolated showers during this forecast period.

Seas are expected to remain slight to moderate for the next few days.


STATE OF THE SEA:  Slight to moderate           WAVES/SWELLS: 3 to 5 feet


SPECIAL FEATURES: A weak area of low pressure associated with a tropical wave located more than 900 miles east of the Lesser Antilles, continues to produce disorganized showers and thunderstorms.  As the system moves westward, some slow development is possible but by Thursday upper-level winds are forecast to become unfavorable for tropical cyclone formation.

Formation chance through 48 hours...low...20 percent.

Formation chance through 5 days...low...20 percent.

A tropical wave located near the west coast of Africa is expected to move quickly westward during the next several days. Some slow development is possible late this week and over the weekend when the system is several hundred miles east of the Lesser Antilles.

Formation chance through 48 hours...low...near 0 percent.Formation chance through 5 days...low...20 percent. 


The Meteorological Department of St. Maarten will continue to monitor the progress of these systems and update the public accordingly.


OUTLOOK through Thursday midday: Partly cloudy with isolated showers possible.