Tropical Storm Warning for Southern Westchester as of 11AM

As Hermine, now 400 miles from New York City, moves up the East Coast and possibly strengthens into a hurricane again, the National Weather Service has issued a Tropical Storm Warning for Westchester's Sound Shore.

The NWS offers three notices in particular:

• Tropical Storm Warning in effect from September 3, 11:00 AM EDT
• Hurricane Local Statement
• Hazardous Weather Outlook

Dangerous winds could damage buildings and trees, even bring scattered power outages, the NWS says.

As for the rest of the Hudson Valley, the storm could bring breezy conditions by Sunday to the interior, says Bill Potter of Hudson Valley Weather, with a mix of sun and clouds and possibly some rain.

But the region's beaches — New Jersey, Long Island, Connecticut — won't be swimmable over Labor Day weekend, forecasters say. Surges and life-threatening rip currents could start occurring as early as Saturday afternoon though Hermine is 480 miles from Montauk as of Saturday mid-morning, moving at about 15 mph.

The risk of coastal and back bay flooding will be greatest, but not limited to the times of high tide. Some locations will experience the highest storm surge around the same time as high tide, AccuWeather forecasters said.

"Incidents of coastal flooding and beach erosion will only increase and become more severe with each passing day of the winds driving the ocean water onshore and surf pounding the beaches," AccuWeather Senior Meteorologist Kristina Pydynowski said.

The NWS points out the potential impacts:

* SURGE:
PREPARE FOR LIFE-THREATENING SURGE HAVING POSSIBLE SIGNIFICANT
IMPACTS ACROSS COASTAL LOCATIONS OF NEW YORK CITY AND LONG
ISLAND...TIDAL PORTIONS OF NORTHEAST NEW JERSEY...WESTCHESTER
COUNTY...AND SOUTHWESTERN CONNECTICUT. POTENTIAL IMPACTS IN
THIS AREA INCLUDE:
- AREAS OF INUNDATION...ACCENTUATED BY WAVES ALONG THE
IMMEDIATE COAST...CAUSING DAMAGE TO SEVERAL BUILDINGS.
- SECTIONS OF NEAR-SHORE ESCAPE ROUTES AND SECONDARY ROADS BECOME
WEAKENED OR WASHED OUT, ESPECIALLY IN USUALLY VULNERABLE LOW
SPOTS.
- FLOOD CONTROL SYSTEMS AND BARRIERS MAY BECOME STRESSED.
- MAJOR DUNE EROSION WITH HIGH SURF BREACHING DUNES. VERY
DANGEROUS SURF AND RIP CURRENTS.
- MODERATE DAMAGE TO MARINAS, DOCKS, BOARDWALKS, AND PIERS.
SEVERAL SMALL CRAFT BROKEN AWAY FROM MOORINGS, ESPECIALLY IN
UNPROTECTED ANCHORAGES.

* OTHER COASTAL HAZARDS:
BATTERING SURF CAUSING SIGNIFICANT DUNE EROSION AND OVERWASHES ARE
LIKELY SUNDAY THROUGH EARLY NEXT WEEK. IN ADDITION...LIFE
THREATENING RIP CURRENTS ARE EXPECTED THIS AFTERNOON THROUGH EARLY
NEXT WEEK.

* WIND:
PREPARE FOR DANGEROUS WIND HAVING POSSIBLE SIGNIFICANT IMPACTS ACROSS
LONG ISLAND...NEW YORK CITY...SOUTHERN WESTCHESTER
COUNTY...HUDSON...EASTERN ESSEX AND UNION COUNTIES...AND COASTAL
CONNECTICUT. POTENTIAL IMPACTS IN THIS AREA INCLUDE:
- SOME DAMAGE TO ROOFING AND SIDING MATERIALS, ALONG WITH DAMAGE
TO PORCHES, AWNINGS, CARPORTS, AND SHEDS. A FEW BUILDINGS
EXPERIENCING WINDOW, DOOR, AND GARAGE DOOR FAILURES. MOBILE
HOMES DAMAGED, ESPECIALLY IF UNANCHORED. UNSECURED LIGHTWEIGHT
OBJECTS BECOME DANGEROUS PROJECTILES.
- SEVERAL LARGE TREES SNAPPED OR UPROOTED, BUT WITH GREATER
NUMBERS IN PLACES WHERE TREES ARE SHALLOW ROOTED. SEVERAL
FENCES AND ROADWAY SIGNS BLOWN OVER.
- SOME ROADS IMPASSABLE FROM LARGE DEBRIS, AND MORE WITHIN URBAN
OR HEAVILY WOODED PLACES. A FEW BRIDGES, CAUSEWAYS, AND ACCESS
ROUTES IMPASSABLE.
- SCATTERED POWER AND COMMUNICATIONS OUTAGES, BUT MORE PREVALENT
IN AREAS WITH ABOVE GROUND LINES.

* FLOODING RAIN:
IMPACTS AT THIS TIME SHOULD BE LIMITED TO TYPICAL
NUISANCE FLOODING MAINLY ACROSS THE NEW YORK CITY METROPOLITAN
AREA AND LONG ISLAND...BUT WILL DEPEND ON EXACT TRACK OF THE
STORM. A SLIGHT NORTHWARD SHIFT IN THE STORM TRACK COULD RESULT
IN HIGHER RAINFALL AMOUNTS. PLEASE STAY TUNED.

LITTLE TO NO IMPACTS ARE ANTICIPATED AT THIS TIME ACROSS INTERIOR
NORTHEAST NEW JERSEY, THE LOWER HUDSON VALLEY, AND INTERIOR
SOUTHERN CONNECTICUT.

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* EVACUATIONS:
IF ORDERED TO EVACUATE, LEAVE AS SOON AS PRACTICAL WITH A
DESTINATION IN MIND. GAS UP YOUR VEHICLE WELL AHEAD OF TIME.
BE SURE THAT YOU TAKE ALL ESSENTIAL MATERIALS FROM YOUR EMERGENCY
SUPPLIES KIT. LET OTHERS KNOW WHERE YOU ARE GOING AND WHEN YOU
INTEND TO ARRIVE.

IF YOU ARE EXCEPTIONALLY VULNERABLE TO WIND OR WATER HAZARDS
FROM TROPICAL STORMS, CONSIDER VOLUNTARY EVACUATION, ESPECIALLY
IF BEING OFFICIALLY RECOMMENDED. RELOCATE TO A PREDETERMINED
SHELTER OR SAFE DESTINATION.

MAP/ NOAA