SAN JUAN — Based on computer modeling, NOAA forecasters are predicting that a disturbance could develop into a tropical storm or hurricane in our region within two weeks.
NOAA’s Weather Prediction Center – Global Tropics Hazard Outlook indicates a greater than 20% chance of tropical cyclone formation near the northeastern Caribbean between July 31st and August 13th.
The above graphic shows the water vapor satellite imagery with very dry air to the east of the Lesser Antilles.
A very dense Saharan Air Layer is embedded in this air mass, and hazy skies are anticipated Thursday through the weekend. Air quality and visibilities will deteriorate…and it will be hot too.
Today…another Heat Advisory in effect until 5 PM AST. Stay hydated!
A significant Saharan dust event is anticipated from tomorrow through late Saturday or early Sunday. Air quality and visibility will deteriorate significantly.
July is the normal time of year for dust from the Saharan desert to reach the Caribbean region.
The Satellite imagery below shows dust near Puerto Rico and the US Virgin Islands this past Saturday.
Last night, an area of drier than normal air moved quickly across the region. Some areas experienced isolated or scattered showers at times, especially the eastern sectors of Puerto Rico and the U.S. Virgin Islands.
Warmer than usual conditions will persist over the next few days. Coastal and urban areas can expect minimum temperatures tonight in the upper 70s to low 80s, while higher elevations can expect lows around 70 degrees.
There is a moderate risk of rip currents for most of our local beaches.
