Tropical Storm Erin Advisory Number   4

NWS National Hurricane Center Miami FL       AL052025

500 AM AST Tue Aug 12 2025

...ERIN EXPECTED TO BEGIN STRENGTHENING SOON......LIKELY TO BECOME A HURRICANE LATER THIS WEEK IN THE CENTRAL TROPICAL ATLANTIC...

 

SUMMARY OF 500 AM AST...0900 UTC...INFORMATION

----------------------------------------------

LOCATION...17.4N 34.3W

ABOUT 690 MI...1105 KM W OF THE CABO VERDE ISLANDS

ABOUT 1890 MI...3045 KM E OF THE NORTHERN LEEWARD ISLANDS

MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H

PRESENT MOVEMENT...W OR 265 DEGREES AT 22 MPH...35 KM/H

MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES

 

WATCHES AND WARNINGS

--------------------

There are no coastal watches or warnings in effect.

================================================================

1. Northwestern Atlantic:  A non-tropical area of low pressure located a few hundred miles southeast of Nova Scotia, Canada, is producing disorganized shower and thunderstorm activity to the west of its center.  Some

limited tropical or subtropical development is possible over the next day or so as the low meanders near the relatively warm waters of the Gulf Stream.  The system is expected to move northward over cooler waters by Wednesday, ending its chances for tropical development.

* Formation chance through 48 hours...low...10 percent.

* Formation chance through 7 days...low...10 percent.

 

2. North-Central Gulf:  A surface trough near the coast of Louisiana is producing a broad area of disorganized showers and thunderstorms.  While development of this system is not anticipated before it moves inland later

today, locally heavy rainfall could produce flash flooding across portions of the northern Gulf coast over the next day or so.  For more information on the rainfall hazards related to this system, please see products issued by your local National Weather Service forecast office.

* Formation chance through 48 hours...low...near 0 percent.

* Formation chance through 7 days...low...near 0 percent.