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AF300 0715E

This is an independent research/prototype tool, not an official source. Warnings, watches and the official forecast for this storm come from the National Hurricane Center.

AF300 (USAF Reserve WC-130J) · 2026-09-27 09:57 – 17:27 UTC ·4 center fixes · archived observations, not a live position.

Flight-level wind:< 34 kt34–49 kt50–63 kt64–82 kt83–95 kt96–112 kt113+ ktRinged dots: center fixes (observations). Open circles: dropsonde splash points. Dashed: best track, ±12 h around the mission.

Storm-relative view

Peak 10-s flight-level wind, per passDropsonde splash pointEstimated centerObservations relative to the estimated storm center (best track refined by this mission’s aircraft center fixes), north up, within 150 nm; not the best track. Track colored by flight-level wind, as on the map above.

Pass 1 (11:14–11:55 UTC): flight-level RMW estimate 31 nm (distance of the peak 10-s flight-level wind, NW) — an estimate, not an analysis
Pass 2 (11:55–13:35 UTC): flight-level RMW estimate 23 nm (distance of the peak 10-s flight-level wind, NE) — an estimate, not an analysis
Pass 3 (13:35–15:05 UTC): flight-level RMW estimate 20 nm (distance of the peak 10-s flight-level wind, SW) — an estimate, not an analysis
Pass 4 (15:05–16:36 UTC): flight-level RMW estimate 25 nm (distance of the peak 10-s flight-level wind, NW) — an estimate, not an analysis
Pass 5 (16:36–17:14 UTC): flight-level RMW estimate 19 nm (distance of the peak 10-s flight-level wind, NE) — an estimate, not an analysis

Observations along the flight

From the HDOB messages, every 30 seconds. Gaps are missing values or missing messages. Shading: a rapid-intensification episode.

Extrapolated surface pressure and peak flight-level wind

Center fixes (observations), minimum sea-level pressure: Dropsonde-measured

SFMR surface wind and rain rate

Flight-level temperature and dewpoint

Aircraft pressure and geopotential height

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