Gulf Coast Hurricane & Energy Asset Impact Simulator

Storm & Track Parameters

Cat 2 Hurricane

Storm Scenario

Central Pressure (mb) 972 mb

Peak Wind Velocity 90 kts (104 mph)

Radius of Max Wind (RMW) 28 nmi

Forward Speed 12 knots

Track Bearing Angle 325° (NW)

Offshore Crude Shut-in 68.4% ~1.23M bpd

Offshore Gas Shut-in 54.2% ~1.08 Bcf/d

Refining Cap at Surge Risk 2.85M bpd 15.4% of US capacity

Evacuated Platforms 42 / 78 Manned deepwater facilities

Gulf of Mexico Energy Operations Map Projection: Cylindrical Equirectangular (98°W–82°W, 23°N–31°N) Cursor: Move over map to inspect infrastructure

Wind > 64 kt (Hurricane Core)

Wind > 50 kt (Storm Prep/Shut-in)

Wind > 34 kt (Gale/Evac Swath)

Deepwater Hubs (BSEE Zones)

Coastal Refineries

H+24 hrs Landfall in ~24 hrs

Asset / Complex	Type / Basin	Peak Wind (kt)	Est. Surge (ft)	Operational Status	Daily Volume

All calculations computed locally using Holland parametric wind models & NOAA SLOSH surge heuristics.

Managing Energy Supply Shocks During Atlantic Hurricane Season

The Gulf of Mexico accounts for approximately 15% of total U.S. crude oil production and over 45% of total U.S. petroleum refining capacity along the Texas-Louisiana coastline. Even a moderate Category 2 hurricane can trigger precautionary platform evacuations, pipeline valve isolations, and export terminal delays days ahead of landfall.

1. BSEE Shut-In Protocols & Evacuation

The Bureau of Safety and Environmental Enforcement (BSEE) tracks daily personnel evacuations and production shut-ins. Operators begin demobilizing non-essential personnel when 50-knot winds are within 72 hours, securing subsea valves and halting flow when 64-knot sustained winds threaten production platforms.

Stage 1 (72h): Non-essential personnel evacuation via helicopter.
Stage 2 (48h): Dynamic positioning rigs disconnect and navigate off-track.
Stage 3 (24h): Emergency Shutdown Valves (ESDVs) close at mudline.

2. Coastal Refinery Surge & Power Grid Risks

Unlike offshore platforms engineered to withstand 100-year wave kinematics, onshore refining complexes (e.g., Beaumont-Port Arthur, Lake Charles, Texas City) face vulnerabilities from low-lying storm surge, power grid trips, and localized riverine flooding.

Surge > 6 ft: Inundates saltwater cooling pumps and water treatment units.
Power Failure: Unplanned thermal shock to fluid catalytic crackers (FCCUs).
Restart Lag: Post-storm restart typically requires 4 to 14 days for inspection.

3. Market Transmission: Crack Spreads & Henry Hub

Hurricane disruptions exert asymmetric pressure on commodity contracts. Offshore production shut-ins reduce crude feedstocks, while simultaneous refinery closures drop crude demand while spiking wholesale gasoline and diesel crack spreads (NYMEX RBOB and ULSD).

Gasoline Crack: Rapid widening due to prompt refining outages.
Henry Hub: LNG liquefaction outages (Sabine Pass, Cameron) can depress domestic gas.
Strategic Reserves: DOE SPR releases deployed during extended pipeline downtime.

Frequently Asked Hurricane & Energy Questions

How does a Category 2 hurricane cause major shut-ins if structures are rated for Cat 5?

Modern deepwater floating production facilities (spars, TLPs, and semi-submersibles) in Green Canyon and Mississippi Canyon are structurally engineered to endure 150-knot winds. However, operator safety regulations and liability protocols mandate full human evacuation when sustained tropical-storm-force winds (34+ kts) reach flight paths. Unmanned operations are prohibited for complex deepwater separation facilities, forcing automated shut-ins regardless of structural survival margins.

Why do coastal refineries take over a week to restart after storm passage?

Refinery units operate at extreme temperatures (over 900°F) and pressures. Unscheduled shutdowns cause hydrocarbon cooling and potential catalyst coking. Once floodwaters recede, electrical switchgear must be thoroughly dried and megger-tested, pressure relief valves inspected, and commercial high-voltage utility power restored before gradual cold-startup sequences can initiate safely.

What mathematical models power this simulation engine?

This engine employs the Holland Parametric Wind Model (Holland, 1980) linking central pressure deficit (ΔP), ambient pressure, Coriolis parameter, and Radius of Maximum Wind (RMW) to calculate cyclonic wind vectors across coordinate space. Surge estimates approximate the NOAA SLOSH response curve relative to bathymetric slope and shoreward wind component.