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AF306 0415E 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 .
AF306 (USAF Reserve WC-130J) · 2026-09-26 03:14 – 11:13 UTC ·4 center fixes · archived observations, not a live position.
160°W 158°W 156°W 154°W 152°W 14°N 16°N 18°N 20°N 22°N Aircraft fix (observation), 2026-09-26 05:23 UTC Aircraft fix (observation), 2026-09-26 06:47 UTC Aircraft fix (observation), 2026-09-26 08:33 UTC Aircraft fix (observation), 2026-09-26 10:34 UTC Dropsonde (observation)
Time: 2026-09-26 04:52 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 045° 11 kt Dropsonde (observation)
Time: 2026-09-26 05:21 UTC (splash)
Surface pressure: 985 mb
Surface wind: 020° 74 kt
Remark: Released in the eyewall (315°) Dropsonde (observation)
Time: 2026-09-26 05:27 UTC (splash)
Surface pressure: 975 mb
Surface wind: 115° 7 kt
Remark: Released at the center Dropsonde (observation)
Time: 2026-09-26 05:35 UTC (splash)
Surface pressure: 983 mb
Surface wind: 125° 55 kt Dropsonde (observation)
Time: 2026-09-26 05:57 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 160° 36 kt Dropsonde (observation)
Time: 2026-09-26 06:20 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 090° 37 kt Dropsonde (observation)
Time: 2026-09-26 06:44 UTC (splash)
Surface pressure: 985 mb
Surface wind: 085° 64 kt
Remark: Released in the eyewall (045°) Dropsonde (observation)
Time: 2026-09-26 06:50 UTC (splash)
Surface pressure: 977 mb
Surface wind: 045° 4 kt
Remark: Released at the center Dropsonde (observation)
Time: 2026-09-26 06:57 UTC (splash)
Surface pressure: 985 mb
Surface wind: 280° 52 kt
Remark: Released in the eyewall (225°) Dropsonde (observation)
Time: 2026-09-26 07:22 UTC (splash)
Surface pressure: 1005 mb
Surface wind: 310° 23 kt Dropsonde (observation)
Time: 2026-09-26 08:04 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 190° 23 kt Dropsonde (observation)
Time: 2026-09-26 08:31 UTC (splash)
Surface pressure: 985 mb
Surface wind: 180° 49 kt
Remark: Released in the eyewall (135°) Dropsonde (observation)
Time: 2026-09-26 08:43 UTC (splash)
Surface pressure: 987 mb
Surface wind: 025° 75 kt
Remark: Released in the eyewall (315°) Dropsonde (observation)
Time: 2026-09-26 09:10 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 030° 25 kt Dropsonde (observation)
Time: 2026-09-26 09:10 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 030° 25 kt Dropsonde (observation)
Time: 2026-09-26 10:02 UTC (splash)
Surface pressure: 1008 mb
Surface wind: 325° 21 kt Dropsonde (observation)
Time: 2026-09-26 10:30 UTC (splash)
Surface pressure: 982 mb
Surface wind: 280° 61 kt
Remark: Released in the eyewall (225°) Dropsonde (observation)
Time: 2026-09-26 10:44 UTC (splash)
Surface pressure: 987 mb
Surface wind: 100° 57 kt Dropsonde (observation)
Time: 2026-09-26 11:08 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 100° 35 kt Flight-level wind: Ringed dots: center fixes (observations). Open circles: dropsonde splash points. Dashed: best track, ±12 h around the mission. Storm-relative view 25 nm 50 nm 100 nm 150 nm N NE SE SW NW Dropsonde (observation)
Time: 2026-09-26 04:52 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 045° 11 kt
Splash 118 nm at 315° (NW) from the estimated center Dropsonde (observation)
Time: 2026-09-26 05:21 UTC (splash)
Surface pressure: 985 mb
Surface wind: 020° 74 kt
Remark: Released in the eyewall (315°)
Splash 18 nm at 303° (NW) from the estimated center Dropsonde (observation)
Time: 2026-09-26 05:27 UTC (splash)
Surface pressure: 975 mb
Surface wind: 115° 7 kt
Remark: Released at the center
Splash 1 nm at 180° (SW) from the estimated center Dropsonde (observation)
Time: 2026-09-26 05:35 UTC (splash)
Surface pressure: 983 mb
Surface wind: 125° 55 kt
Splash 24 nm at 083° (NE) from the estimated center Dropsonde (observation)
Time: 2026-09-26 05:57 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 160° 36 kt
Splash 105 nm at 089° (NE) from the estimated center Dropsonde (observation)
Time: 2026-09-26 06:20 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 090° 37 kt
Splash 109 nm at 042° (NE) from the estimated center Dropsonde (observation)
Time: 2026-09-26 06:44 UTC (splash)
Surface pressure: 985 mb
Surface wind: 085° 64 kt
Remark: Released in the eyewall (045°)
Splash 22 nm at 028° (NE) from the estimated center Dropsonde (observation)
Time: 2026-09-26 06:50 UTC (splash)
Surface pressure: 977 mb
Surface wind: 045° 4 kt
Remark: Released at the center
Splash 1 nm at 169° (SE) from the estimated center Dropsonde (observation)
Time: 2026-09-26 06:57 UTC (splash)
Surface pressure: 985 mb
Surface wind: 280° 52 kt
Remark: Released in the eyewall (225°)
Splash 23 nm at 215° (SW) from the estimated center Dropsonde (observation)
Time: 2026-09-26 07:22 UTC (splash)
Surface pressure: 1005 mb
Surface wind: 310° 23 kt
Splash 104 nm at 223° (SW) from the estimated center Dropsonde (observation)
Time: 2026-09-26 08:04 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 190° 23 kt
Splash 108 nm at 132° (SE) from the estimated center Dropsonde (observation)
Time: 2026-09-26 08:31 UTC (splash)
Surface pressure: 985 mb
Surface wind: 180° 49 kt
Remark: Released in the eyewall (135°)
Splash 19 nm at 110° (SE) from the estimated center Dropsonde (observation)
Time: 2026-09-26 08:43 UTC (splash)
Surface pressure: 987 mb
Surface wind: 025° 75 kt
Remark: Released in the eyewall (315°)
Splash 24 nm at 301° (NW) from the estimated center Dropsonde (observation)
Time: 2026-09-26 09:10 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 030° 25 kt
Splash 112 nm at 314° (NW) from the estimated center Dropsonde (observation)
Time: 2026-09-26 09:10 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 030° 25 kt
Splash 112 nm at 314° (NW) from the estimated center Dropsonde (observation)
Time: 2026-09-26 10:02 UTC (splash)
Surface pressure: 1008 mb
Surface wind: 325° 21 kt
Splash 122 nm at 222° (SW) from the estimated center Dropsonde (observation)
Time: 2026-09-26 10:30 UTC (splash)
Surface pressure: 982 mb
Surface wind: 280° 61 kt
Remark: Released in the eyewall (225°)
Splash 21 nm at 207° (SW) from the estimated center Dropsonde (observation)
Time: 2026-09-26 10:44 UTC (splash)
Surface pressure: 987 mb
Surface wind: 100° 57 kt
Splash 21 nm at 035° (NE) from the estimated center Dropsonde (observation)
Time: 2026-09-26 11:08 UTC (splash)
Surface pressure: 1006 mb
Surface wind: 100° 35 kt
Splash 101 nm at 043° (NE) from the estimated center Pass 1: peak 10-s flight-level wind 80 kt, 23 nm at 320° (NW) from the estimated center, 05:17 UTC Pass 2: peak 10-s flight-level wind 80 kt, 23 nm at 094° (SE) from the estimated center, 05:30 UTC Pass 3: peak 10-s flight-level wind 78 kt, 24 nm at 227° (SW) from the estimated center, 06:54 UTC Pass 4: peak 10-s flight-level wind 85 kt, 24 nm at 313° (NW) from the estimated center, 08:40 UTC Pass 5: peak 10-s flight-level wind 72 kt, 16 nm at 048° (NE) from the estimated center, 10:40 UTC Observations 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 (04:40–05:24 UTC): flight-level RMW estimate 23 nm (distance of the peak 10-s flight-level wind, NW) — an estimate, not an analysis Pass 2 (05:24–06:47 UTC): flight-level RMW estimate 23 nm (distance of the peak 10-s flight-level wind, SE) — an estimate, not an analysis Pass 3 (06:47–08:33 UTC): flight-level RMW estimate 24 nm (distance of the peak 10-s flight-level wind, SW) — an estimate, not an analysis Pass 4 (08:33–10:34 UTC): flight-level RMW estimate 24 nm (distance of the peak 10-s flight-level wind, NW) — an estimate, not an analysis Pass 5 (10:34–11:13 UTC): flight-level RMW estimate 16 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.
Extrapolated surface pressure and peak flight-level wind
Center fixes (observations), minimum sea-level pressure:
SFMR surface wind and rain rate
Flight-level temperature and dewpoint
Aircraft pressure and geopotential height
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