Hurricane Isabel — Drum Inlet NC, September 2003

Total Insured Loss

$1.85B

Wind + Surge — 2,375,360 buildings modeled

🌪 Wind Loss

$1.65B

1,324,660 buildings affected · peak 106 mph

BM: $1.70B (-2.9%) — AIR Worldwide 2003: Isabel US total insu

🌊 Surge Loss

$197.3M

7,953 buildings inundated · peak WSE 11.7 ft

BM: $250.0M (-21.1%) — insured fraction pending

Storm Summary

CategoryCat 2

Max wind90 kt

Min pressure957 mb

Peak model wind106 mph

Surge WSE peak11.7 ft

Peak depth at FFE10.2 ft

VE zone buildings1,219

VE open / enclosed787 / 432

View Mode

Wind

Surge

Combined

Legend

None (<1%)

Minor (1–10%)

Moderate (10–30%)

Severe (30–70%)

Destruction (>70%)

Layers

Storm Track Buildings

Pipeline Stages

S1 — Track

HURDAT2 AL092022 — 39 pts

S2 — Holland B Wind Field

2,375,360 FL buildings

S2s — Surge Field

Irish et al. parametric WSE · FM 11.7 ft ({peak_wse-14.1:+.1f} ft vs 14.1 ft obs)

S3 — HAZUS Wind Fragility

By construction class

S3s — HAZUS Surge Curves

VE open/enclosed + AE · enclosure_class from SI

S4 — Loss Aggregation

Wind $1.65B · Surge $197.3M

S5 — Viewer Deploy

PMTiles · Cloudflare Pages

Wind: Holland B parametric field. Surge: Irish et al. (2008) parametric WSE. Peak 1×Rmax right of track. HAZUS Ch. 7 depth-damage curves by enclosure class (Phase 6 SI). Combined = max(wind DR, surge DR).

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Hurricane Isabel — Drum Inlet NC, September 2003 — Wind & Surge Damage