Climate Physical Risk

The National Weather Service's Los Angeles office logged a preliminary 8.02ft reading at the San Pedro tide gauge on Monday morning, the highest in records going back to November 1923, and warned of significant coastal flooding in San Diego and Orange counties through Thursday that could close roads and inundate homes and infrastructure. Newport Beach declared a local emergency more than a week ahead, reinforcing beach berms and handing out sandbags. Its city manager, Seimone Jurjis, told the Guardian that El Niño and a Kelvin wave have lifted regional water levels by about 15 to 22 inches above expected, ahead of a winter forecast to bring severe storms.

Typhoon Champi, which recorded sustained winds of 185mph last week, has been declared the strongest storm of 2026 so far, the Guardian reports. It battered Taiwan and Japan's southern islands from Thursday to Saturday, looping off Yilan County with gusts to 141mph and more than 620mm of rain in 48 hours; one person died, 527 were injured, and more than 288,000 homes lost power at the peak. Champi weakened to a tropical storm on Monday, while Cyclone Arnab is forecast to reach India's east coast near Andhra Pradesh and Odisha on Wednesday.

Miami's Virginia Key gauge recorded moderate coastal flooding on six straight days from October 21 to 26, the longest run since records began in 1994, Yale Climate Connections reports, and the streak could reach nine days by Friday. Seven of Miami's 13 highest-water days on record have come in the past two months of king tides, with flood warnings stretching from the Florida Keys to the Outer Banks. The same post records the San Juan River at Farmington, New Mexico, cresting at 14.07ft against a 1909 record of 12.3ft, and ties the pattern to a record-strong El Niño.

The IPCC's plenary of 195 governments in Addis Ababa was suspended on October 16 without agreement on when its seventh assessment will be published, leaving both the timeline and the panel's budget open with no date to resume, Reuters reported. Thirty countries, among them European, Latin American and small-island states, want all three reports out before the 2028 global stocktake, while India, Kenya, Saudi Arabia, Russia and China want more time. The FT reports that the funding stranglehold follows a push from fossil-fuel-reliant nations to delay the reports.

Why it matters: The assessment reports are the reference projections that insurers, central banks and governments use to price physical risk; a delay past 2028 leaves them on the 2021–23 cycle.

Sources and residents told the Guardian that U.S.-coordinated airstrikes on al-Shabaab-held Jilib, a city of about 100,000, are pushing civilians toward the River Juba just as a strengthening El Niño is forecast to bring heavy flooding; U.S. records confirm 11 strikes there since early August. Africom denies targeting civilians or using flooding as a method of war. Jubaland's commissioner for displaced people said only half of 327 flood-prone areas had received El Niño warnings by October; the 2023 El Niño floods displaced more than 1.2 million Somalis.

Hannover Re's seventh Acorn Re catastrophe bond, parametric cover for U.S. west coast earthquakes on behalf of Kaiser Permanente's captive, grew from a $200 million target to $450 million and priced at a 2% spread, the bottom of guidance, Artemis reports. The notes carry a 0.78% expected loss and a multiple of 2.56 times, against 2.45 times a year ago. Artemis calls it strong execution in a softened reinsurance market.

Liechtenstein's VP Bank keeps a neutral weighting on insurance-linked securities, citing three years of falling yields on new cat bonds as reinsurance pricing softened and, newly, the cost of currency hedging, Artemis reports. The bank notes that 2026 was the first season since satellites began 60 years ago to enter October without an Atlantic hurricane, while three Pacific hurricanes ran at once for only the second time without touching Mexico's parametric bond.

The City reports that FEMA will soon stop helping states with disaster relief and that for New York the change means the loss of billions of dollars. The article could not be found or read, so the size and timing of the withdrawal are unconfirmed here.

California's State Water Resources Control Board votes at the end of October on the first major update in years to the Bay-Delta Water Quality Control Plan, the rules governing flows through and exports from the state's major rivers and the Delta. Maven's Notebook reports that Healthy Rivers and Landscapes, the voluntary-agreement program at the plan's core, is on shaky ground as key participants signal they may walk away.

Crop losses from recurring droughts are shrinking Poland's economy and hitting businesses beyond the farm, TVP World reports, after a summer of prolonged heatwaves pushed water levels in parts of the country to record lows. The article's figures could not be read.