Clue from nature AD 1872

Ship logs: gales along the drift route on 26-27 Nov and a force 10-12 north-west storm on 30 Nov to 2 Dec

scripts/icoads_box.py, celeste/icoads_azores_1872.csv: 93 wind reports, 30-45 N, 35-5 W, 20 Nov-6 Dec 1872, nearly all Dutch logbooks (positions to the nearest 1-degree box). One ship came up from 30.5 N 28.5 W (25 Nov), crossed the drift route, and was near 38.5 N 17.5 W on 4 Dec, the place and day the Dei Gratia found the Mary Celeste. It logged force 8-10 from the W-NW on 27 Nov near 35.5 N 24 W; its barometer then fell from 1032.5 hPa (28 Nov) to 1005.5 (30 Nov 21h) while the wind rose to force 10-12 from the NW at 40.5 N 17.5 W, and it stayed almost in one place for a day and a half (lying to). A second ship logged force 8-9 from the NW near 35.5 N 33 W on 26-27 Nov. By 4 Dec the wind near the meeting point was NNE force 5-6, matching the Dei Gratia's 'wind from the north'.

How it connects

This clue from nature supports this hunch Mostly known: the drift fits abandonment on 25 Nov (Richardson 2007); only the storm of 30 Nov to 2 Dec against the 1873 'no heavy weather' argument may be new storms on the route

This clue from nature is a clue for Why was the Mary Celeste found sailing with no one aboard (December 1872)?

This clue from nature argues against The 1873 inquiry's reasoning: wind 'more or less from the north', so she could not have drifted 7 deg 54 min east on the starboard tack, and 'could not have encountered any seriously heavy weather'; so she was abandoned days after the last log entry heavy weather on the route

This clue from nature we read it in ICOADS Release 3.1 ship and buoy observations (IMMA1 monthly files, NOAA NCEI); 1872 reports near the Azores come from the Dutch meteorological logbooks (deck 193, punch-card copies; the original books are lost)

This clue from nature came from this step Checked the Mary Celeste's drift against the 1872 weather