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Suffolk & Nassau Command
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Station #212066 • °F / MPH Live
National Hurricane Center (NHC) • NOAA Upton Watch Active Atlantic Tracking Live

Atlantic Basin Tropical Command & Storm Surge Modeler

Official National Hurricane Center (NHC) graphical outlook maps, interactive Atlantic infrared satellite radar, SLOSH coastal storm surge inundation models for Suffolk and Nassau, and NYS evacuation zones.

Tropical Cyclone Status: NO ACTIVE THREATS
South Shore Tidal Surge: +0.4 ft (Normal Astronomical)
PSEG Grid Vulnerability: Low Risk (Dry Soil)
Official NOAA Imagery

National Hurricane Center (NHC) Live Atlantic Outlooks

Official NHC Tropical Discussion

NHC Atlantic 7-Day Graphical Tropical Weather Outlook

Updated 4x Daily
NHC Atlantic 7-Day Graphical Tropical Weather Outlook Map

Displays areas of disturbed weather and potential tropical cyclone formation chances over the next 7 days across the Atlantic, Caribbean, and Gulf of Mexico.

NHC Atlantic 2-Day (48-Hour) Genesis Outlook

Short-Term Genesis
NHC Atlantic 2-Day Graphical Tropical Weather Outlook Map

High-resolution 48-hour outlook highlighting immediate wave formation risks and active tropical depressions or named storms.

High-Resolution Orbit Telemetry

Interactive Infrared Satellite & Tropical Wave Radar: Atlantic Basin

NOAA GOES-16 East Telemetry
Interactive: Pan across Atlantic, Caribbean, and Eastern Seaboard Live Infrared Cloud Top Brightness Temperature
NOAA Sea, Lake & Overland Surges (SLOSH)

Long Island Coastal Storm Surge Inundation Matrix

Benchmark: Superstorm Sandy vs. 1938 Long Island Express
Category 1 (74 - 95 mph) 15% - 35% Customer Outages
South Shore Surge: 3 - 5 ft above MLLW
North Shore Sound Surge: 3 - 6 ft (Sound funneling)
Vulnerable Inundation Corridors:

South Shore tidal canal communities (Freeport, Lindenhurst, Mastic Beach, Babylon canal fingers). Dune Road low-water overwash. Fire Island boardwalk breaches.

Evacuation Protocol: Zone A Voluntary / Mandatory for mobile homes and barrier beach residents.
Category 2 (96 - 110 mph) 40% - 65% Customer Outages
South Shore Surge: 6 - 9 ft above MLLW
North Shore Sound Surge: 7 - 10 ft (Extreme Sound tide trap)
Vulnerable Inundation Corridors:

Widespread South Shore street flooding south of Montauk Highway. Multiple Fire Island ocean-to-bay breaches (Old Inlet, Smith Point). Port Jefferson Harbor front flooding.

Evacuation Protocol: Zone A Mandatory. Zone B Recommended for low-elevation bayfront homes.
Category 3 (Major) (111 - 129 mph) 75% - 90% Islandwide Outages (Multi-week restoration)
South Shore Surge: 10 - 14 ft above MLLW (Superstorm Sandy Benchmark)
North Shore Sound Surge: 11 - 15 ft (Catastrophic Harbor Surge)
Vulnerable Inundation Corridors:

Catastrophic inundation across Long Beach, Jones Beach, Fire Island, and entire South Shore. Water overtops Sunrise Highway in flood corridors. Extensive North Shore harbor bowl flooding.

Evacuation Protocol: Zone A & Zone B Mandatory Evacuation. All barrier island bridges closed.
Category 4 (Catastrophic) (130 - 156 mph (1938 LI Express Benchmark)) 95%+ Grid Failure across Suffolk and Nassau
South Shore Surge: 15 - 20+ ft above MLLW
North Shore Sound Surge: 16 - 22+ ft (Historical Record Surge)
Vulnerable Inundation Corridors:

Total islandwide devastation. Complete barrier beach submergence. Westhampton Shinnecock breach opens. Massive infrastructure disruption across both counties.

Evacuation Protocol: Full Islandwide Lowland Evacuation (Zones A, B, and C).
NYS Coastal Evacuation Zones Guide

Suffolk and Nassau Counties designate coastal flood risk into three color-coded evacuation tiers:

ZONE A (Highest Risk): Evacuate Cat 1+

Includes all barrier islands (Fire Island, Long Beach, Lido Beach), tidal marsh canal communities (Freeport, Lindenhurst, Mastic Beach), and properties within 100 yards of tidal bays.

ZONE B (Moderate Risk): Evacuate Cat 2+

Areas inland of coastal highways subject to surge funneling, including low-lying sections of Montauk Highway, Port Jefferson lower harbor, and Peconic riverfront.

ZONE C (Major Storms): Evacuate Cat 3/4

Higher ground susceptible to severe flood backwater during record major hurricanes (Superstorm Sandy or 1938 Long Island Express benchmarks).

PSEG Grid Outage & Generator Safety
Soil Saturation & Tree-Fall Threshold:

Oak and pitch pine root systems lose grip when soil is saturated by > 3 inches of rain. When gusts exceed 48 mph on saturated soil, tree uprooting and power outages spike exponentially across Suffolk County.

Carbon Monoxide Generator Warning:

NEVER operate a portable generator inside a garage, basement, or enclosed porch. Generators must be positioned a minimum of 20 feet away from doors, windows, and fresh air intake vents.

PSEG Outage Reporting Direct Links:
1-800-490-0075 • PSEG Outage Map →