Hurricane Erin Advisory Number  20 - NWS National Hurricane Center Miami FL       AL052025 - 500 AM AST Sat Aug 16 2025
 
...ERIN RAPIDLY STRENGTHENING......OUTER RAINBANDS BEGINNING TO AFFECT THE NORTHERN LEEWARD ISLANDS...
  
SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
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LOCATION...19.8N 61.1W
ABOUT 170 MI...275 KM NE OF ANGUILLA
MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 20 MPH...31 KM/H
MINIMUM CENTRAL PRESSURE...955 MB...28.20 INCHES
  
WATCHES AND WARNINGS
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CHANGES WITH THIS ADVISORY:
 
The Meteorological Service of Antigua/Barbuda has discontinued the Tropical Storm Watch for Anguilla.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Tropical Storm Watch is in effect for...
* St. Martin and St. Barthelemy
* Sint Maarten
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1. Northwestern Atlantic:  A broad and weak area of low pressure located off the coast of North Carolina is producing disorganized shower activity.  Some 
slight development of this system is possible over the next day or two while it moves little over the warm waters of the Gulf 
Stream.  By Monday, environmental conditions are expected to become unfavorable for further development.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...low...10 percent.