Update 2:05 p.m.:
All Greenwich beaches including those at Island Beach and Great Captain's Island are now closed to swimming.
The Greenwich Health Department issued an updated advisory at 1:44 p.m. Sunday announcing the additional closures because 3 inches of rain has fallen. All beaches will remain closed until further notice. The National Weather Service is calling for continued rain through Tuesday and has been issued.
The Greenwich Health Department announced that beaches at Greenwich Point Park and Byram Park were closed to swimming at 9 a.m. because continuing rainfall has measured at 1 1/2 inches.
Health department regulations mandate the closure of the beaches when there is 1 1/2 inches of rain during a 24-hour period. Reopening of the two land beaches is dependent upon rainfall, which is predicted to continue throughout Sunday and Monday, with a chance of showers into Tuesday, according to the National Weather Service.
However, the beaches on the town's islands - Captain's Island and Great Captain's Island - remain open, according to the health department's announcement.
Greenwich Patch will post updates as they become available.