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DESK

⚓Maritime

Sep 19, 2026 · NO. 0919
THE READ — what this desk must decide today

a typhoon crossing island ferry routes, an extratropical cyclone on a South American coast, and a marine alert count that is carrying most of an American board

The water is where today's alert volume actually sits. The American national board reads 362 active alerts of which 294 are marine against just 68 on land — an aggregate that looks like a busy country and is mostly a busy coastline, and the kind of total that misleads anyone reading the headline number instead of the split. Around Japan, the Ogasawara and Izu ferry routes are the first things the storm touches and the last to be restored; holding a sailing on Saturday is cheaper than recovering a stranded holiday manifest on Monday. On the Rio Grande do Sul coast an extratropical cyclone forms Sep 19 into Sep 20 with winds to 100 km/h — a berth, anchorage and small-craft decision on a short fuse. In the Saudi south-west highlands, red flash-flood alerts sit above the coastal plain, where torrents reach the shore road faster than they reach the forecast. Who owns the call: a harbourmaster with a sailing list and a falling barometer.

THE DRIVERS 1–12h — what is driving this desk today
Typhoon Dujuan — the line crossed, and the water starting to landPEAK→Rio Grande do Sul — the window became an extratropical cycloneEMERGING→The American rain rides east — Great Lakes today, the North-east tomorrowACTIVE→Asir, Al-Baha and the Makkah highlands — the red run persistsACTIVE→
THE RECORD past — how exposed this desk has run

carried on 30 of the last 65 editions — since Aug 4, the 10 most recent shown.

Sep 19the line crossed · the window became an extratropical… · Great Lakes today
Sep 18large · The East Pacific lit three areas a… · Orange 6 and Orange 5
Sep 17named · the genesis engine ramps as its ra… · a red flash-flood run dated throug…
Sep 16east of Saipan · a last hot pulse · a red flash-flood run now dated th…
Sep 15THE EASING SLIPPED A DAY AND THE W… · A FRESH NORTH-BAY-OF-BENGAL LOW FO… · A LAST HOT PULSE CRESTS ON THE SOU…
Sep 13A CUT-OFF LOW RE-ARMS SOUTH AFRICA… · THE RED IS DOWN TO ORANGE AS THE B… · ONE LAST HOT DAY PEAKING SEP 14 ON…
Sep 12THE RED HELD A SECOND MORNING · THE DEADLY OUTBREAK HAS PASSED SOU… · NEAR HURRICANE STRENGTH AT 65 MPH
Sep 11A RED WARNING THAT WALKED SOUTH ON… · AN ORANGE-TIER OUTBREAK ON THE TRO… · A FINAL ADVISORY
Sep 8A CATEGORY-2 LOWELL AT CLOSEST APP… · MARIE WEAKENING OFFSHORE · 28.0 CM
Aug 28A DOUBLE LANDFALL IN ZHEJIANG · A RECORD FLOOD DRAINING · KAUB STOPPED FALLING AT 60 CM