H-120 Hurricane Operations

Loading the H-120 hurricane operations timeline

Map Controls

Camera view

Map evidence Concurrent operational alerts 2D · NOAA NDFD Advisory wind field 34 / 50 / 64 kt radii Center-track uncertainty cone Coastal watch/warning breakpoint lines Final best track FEMA IA declared counties Post-event · OpenFEMA

County planning model

Lower confidenceHigher confidence

Height Modeled households · stable event scale

Color Forecast to post-storm index

Final best track and analyzed position

Gray counties sit below the current planning threshold.

Invert height Lower values rise Invert color Ramp reverses

TS12345 Final analyzed track intensity

To landfall T−5d Sep 25, 2:00 PM EDT

Counties above threshold 0

Modeled households 0

Speed

0s / 45s

Analysis

County encoding

Height Color

Map view

Overall column height 25%

Planning lens

Decision evidence

Operational advisory: UnavailableNo advisory loaded
48-hour track error: UnavailableApp-computed against final best track
Operational center: UnavailableNHC advisory analysis
Post-storm center: UnavailableNearest final best-track analysis

ARC H-Hour planning phase

H-120 readiness Public H-Hour estimate unavailable Waiting for the first as-issued NHC most-likely tropical-storm-force wind arrival product.

H-120 guided checklist

Function Structure

Loading summarized operational guidance.

Condensed public beta guidance; authoritative procedures and incident leadership direction control.

What changed in the last six hours?

Loading the selected historical event.

H-120 decision snapshots

County detail

Select a county to inspect its model inputs and current state.

Operations Brief

Opens a print-ready report of this storm: interval maps, phase checklists, and an illustrative staging timeline. Save it as a PDF from the print dialog.

Method and sources

Archived NHC operational advisories, most-likely tropical-storm-force wind arrival products, advisory-time 34/50/64 kt wind radii, and NOAA NDFD alert grids are shown only after release. The H-Hour value is a public NHC-derived proxy, not a historical ARC or NHQ H-Hour record.

NDFD surfaces are selected concurrent operational alert evidence. County percentages are app-computed area intersections; they do not imply whole-county coverage or source attribution to the named storm. Short-fuse warning absence does not mean no warning existed.

County height is a transparent planning model based on households, track distance, hurricane risk, and social vulnerability. FEMA Individual Assistance designation is a separate post-event administrative outcome.

The display does not represent observed need, Red Cross caseload, capacity, deployment, or movement.