Tomorrow.ioTomorrow.io THE ATMOSPHERE TODAY · DESK← TODAY'S COVER
DESK

⚡Energy

Sep 20, 2026 · NO. 0920
THE READ — what this desk must decide today

an easing but still loaded evening peak, a distribution network under a holiday rain shield, and a river that constrains fuel movement

Load is coming down and the risk is moving from generation to distribution. The South-Central evening peak still runs under an index near 108 °F even as the advisory footprint contracts to about 4, so the planning question shifts from scarcity to when to stand down a heat posture without standing it down early. In eastern Japan, the Monday rain window is a distribution and access problem — poles, substations and the crew routes to reach them on saturated slopes — rather than a wind-loading one. In southern Brazil gusts to 100 km/h with hail are a straightforward outage-and-restoration day. And the Rhine at Kaub at 21.0 cm keeps a barge-draft constraint on fuel and coal movement that no single weather event will lift.

THE DRIVERS 1–12h — what is driving this desk today
THE AMERICAN SOUTH-CENTRAL — THE ADVISORY FOOTPRINT SHRANK TO ABOUT FOUR, THE CORE DID NOTEASING→TYPHOON DUJUAN — THE WIND EASES AS IT TURNS ONTO TOKYO, AND THE RAIN IS WHAT ARRIVESCRESTING→RIO GRANDE DO SUL — THE COASTAL EXTRATROPICAL CYCLONE REACHES ITS PEAKPEAK→THE RHINE AT KAUB — 21.0 CM, PRINTED AS A LEVEL AND NOT AS A TRENDACTIVE→
THE RECORD past — how exposed this desk has run

carried on 43 of the last 66 editions — since Jul 5, the 10 most recent shown.

Sep 20THE ADVISORY FOOTPRINT SHRANK TO A… · THE WIND EASES AS IT TURNS ONTO TO… · THE COASTAL EXTRATROPICAL CYCLONE …
Sep 19the advisory tier widened to 13 · the window became an extratropical… · a Slight risk over the central Pla…
Sep 18record-challenging heat · the last polar wave before Spring … · Orange 6 and Orange 5
Sep 17fifteen advisories · Antarctic air holding south while … · Orange level 6 on the KwaZulu-Nata…
Sep 16twelve advisories · the Antarctic front landed on sche… · snow above 600 m
Sep 15THE MID-SOUTH HEAT REGIME HELD: 0 … · THE FLOOD TOLD TO TAPER TODAY EXPA… · THE EXTREME-COLD ALERT CLEARED ENT…
Sep 13THE ACUTE TIER HELD AT ZERO A SECO… · A MARGINAL DAY FOR DAMAGING WIND A… · THE POLAR PHASE TOOK OVER: YELLOW …
Sep 12THE ACUTE TIER READ ZERO · RED-FLAG WARNINGS ROSE 6 TO 10 AS … · THE WATER IS CERTAIN AND THE CAUSE…
Sep 11THE ACUTE-HEAT TIER COLLAPSED A SE… · A FINAL ADVISORY · A RED WARNING THAT WALKED SOUTH ON…
Sep 8A CATEGORY-2 LOWELL AT CLOSEST APP… · THE ACUTE-HEAT MAP RE-LIT: WARNING… · 28.0 CM