WTNT34 KNHC 042053
POST-TROPICAL CYCLONE HERMINE ADVISORY NUMBER 30
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092016
500 PM AST SUN SEP 04 2016
...TROPICAL STORM WARNING ISSUED FOR PORTIONS OF SOUTHEASTERN NEW
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
ABOUT 310 MI...495 KM SSE OF THE EASTERN TIP OF LONG ISLAND
ABOUT 335 MI...540 KM E OF OCEAN CITY MARYLAND
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...ENE OR 70 DEGREES AT 5 MPH...7 KM/H
MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
A Tropical Storm Warning has been issued from Watch Hill, Rhode
Island eastward to Sagamore Beach, Massachusetts including Block
Island, Martha's Vineyard, and Nantucket.
The Tropical Storm Warning has been discontinued from Fenwick
Island, Delaware southward, and also discontinued for Delaware Bay
north of Slaughter Beach.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...
* North of Fenwick Island to Sagamore Beach
* Delaware Bay south of Slaughter Beach
* Block Island
* Martha's Vineyard
For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.
DISCUSSION AND 48-HOUR OUTLOOK
At 500 PM AST (2100 UTC), the center of Post-Tropical Cyclone
Hermine was located near latitude 37.2 North, longitude 69.1 West.
The post-tropical cyclone is moving toward the east-northeast near 5
mph (7 km/h). A turn toward the north with a decrease in forward
speed is expected later today, followed by a slow
north-northwestward motion through Monday. On the forecast track,
the center of Hermine will meander slowly offshore of the
mid-Atlantic coast for the next couple of days.
Maximum sustained winds are near 70 mph (110 km/h) with higher
gusts. Hermine should remain at or near hurricane strength for the
next day or so, and begin to gradually weaken by Monday night.
Tropical-storm-force winds extend outward up to 230 miles (370 km)
from the center.
The estimated minimum central pressure is 999 mb (29.50 inches).
HAZARDS AFFECTING LAND
WIND: Tropical storm conditions will spread northward within the
warning area along the Atlantic coast through Monday.
STORM SURGE: The combination of a storm surge and the tide will
cause normally dry areas near the coast to be flooded by rising
waters moving inland from the shoreline. Along the immediate
coastline, the surge will be accompanied by large and dangerous
waves. There is a possibility of life-threatening inundation during
the next 48 hours on the North Shore of Long Island east of
Flushing and on the south shore of Long Island east of Rockaway
For a depiction of areas at risk, please see the Prototype Storm
Surge Watch/Warning graphic, which displays areas that would qualify
for inclusion under a storm surge watch or warning currently under
development by the National Weather Service and planned for
operational use in 2017. The Prototype Graphic is available at
The water could reach the following heights above ground if the
peak surge occurs at the time of high tide...
Rehoboth Beach, DE to Montauk Point, NY including the North Shore of
Long Island east of Flushing...1 to 3 feet
RAINFALL: Heavy rainfall associated with Hermine will remain mainly
offshore through Wednesday. Rainfall totals of 1 to 2 inches are
possible across far southeastern Massachusetts, including Cape Cod
and the offshore islands.
SURF: Large waves generated by Hermine will affect the U.S. east
coast from the mid-Atlantic states and expand northward along the
coast of southern New England through Monday. These waves are
likely to cause life-threatening surf and rip current conditions,
and significant beach erosion. Please consult products from your
local weather office.
Next intermediate advisory at 800 PM AST.
Next complete advisory at 1100 PM AST.