Post-Tropical Ophelia Continues To Pose A Risk Of Coastal Flooding And Locally Heavy Rain From Washington D.C. To New York City Today

Post-Tropical Cyclone

Location 85 miles S of Washington D.C.
Wind 25 mph
Heading NNE at 12 mph
Pressure 29.74
Coordinates 77.3W, 37.7N


At 500 AM EDT (0900 UTC), the center of Post-Tropical Cyclone Ophelia was located near latitude 37.7 North, longitude 77.3 West. The post-tropical cyclone is moving toward the north-northeast near 12 mph (19 km/h) and this motion is expected to continue today before a turn to the east tonight.

Maximum sustained winds are near 25 mph (35 km/h) with higher gusts. A gradual weakening is forecast during the next 48 hours as the low center moves slowly offshore.

The estimated minimum central pressure is 1007 mb (29.74 inches).

Tropics Satellite at 12:48 Sunday Afternoon, September 24th

Watches and Warnings


Flash flood watches have expired.


Coastal flood warnings and advisories remain in effect for portions of the U.S. Mid-Atlantic.

Tropics Models at 10:03 Sunday Morning, September 24th

Land Hazards

Key messages for Ophelia can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT1, WMO header WTNT41 KNHC, and on the web at

STORM SURGE: Water levels remain elevated within portions of Chesapeake Bay and its tidal rivers but should gradually recede through today. For information specific to your area, please see products issued by your local National Weather Service forecast office.

RAINFALL: Ophelia is expected to produce the following additional rainfall through late this coming night:

Portions of the Mid-Atlantic to southern New England…1 to 3 inches

This rainfall may produce localized flash, urban, and small stream flooding impacts across portions of the Mid-Atlantic region into southern New England. Isolated river flooding is possible in areas of heavier rainfall.

SURF: Swells generated by Ophelia will continue to affect much of the east coast of the United States through today. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office.