From the Government web page one hour aro.
"** SPECIAL WEATHER BULLETIN **
DATE ISSUED: Monday, July 27 2020
Shower activity associated with a broad area of low pressure, approximately 1000 miles east-southeast of St Maarten, has become a little less organized since last night (Sunday night). However, environmental conditions are still expected to become favorable for development and a tropical depression or tropical storm will likely form within the next couple of days. The system is forecast to move westward to west-northwestward at 15 to 20 mph and could begin affecting portions of the Lesser Antilles on Wednesday or Wednesday night. * Formation chance through 48 hours...high...80 percent. * Formation chance through 5 days...high...90 percent.
** Due to the high likelihood of cyclone formation, a tropical storm watch could be issued for St Maarten.
A small craft advisory, flash flood advisory and severe wind advisory could go into effect for St. Maarten from Wednesday morning.
* Residents and motorists in areas prone to flooding and rock falls should be vigilant and avoid these areas whenever possible.
* Sea users and persons with interests along the coast should exercise extreme caution and secure their property. All sea users and persons close to the sea should make plans to take necessary action.
The Meteorological Department of St. Maarten will continue to monitor the progress of this system and keep the public updated accordingly.
Members of the public are advised to monitor the updates of this system."