donsutherland1

A few locations could still see a shower or thundershower this evening. Most of the region will likely be dry. Rainfall totals through 4 pm include: Bridgeport: 0.97" (old record: 0.95", 1954) Hartford: 3.54" (old record: 3.18", 1954) ***7th Highest August Daily Amount*** Islip: 1.89" (old record: 1.36", 1987) New York City-Central Park: 1.93" New York City-JFK Airport: 2.75" (old record: 1.90", 1948) New York City-LaGuardia Airport: 1.22" Newark: 2.27" (old record: 1.60", 1885) Westfield: 1.69" Westhampton: 1.63" (old record: 1.41", 1961) Worcester: 1.52" (tied record set in 1996) No exceptional heat is likely through the first week of August. However, it will turn warmer during the second half of the week. The ENSO Region 1+2 anomaly was +4.1°C and the Region 3.4 anomaly was +2.3°C for the week centered around July 30. For the past six weeks, the ENSO Region 1+2 anomaly has averaged +3.53°C and the ENSO Region 3.4 anomaly has averaged +2.02°C. The ongoing strong El Niño, which has reached super El Niño threshold, will continue to strengthen through the summer. The SOI was -10.38 today. The preliminary Arctic Oscillation (AO) was -0.154 today.

The ongoing super El Niño is approaching historic proportions in ENSO Region 1+2. The anomaly for the week centered around July 30 was +4.1°C. The last time the anomaly was at least as high was the week centered around July 6, 1983 (+4.2°C) as the 1982-83 super El Niño was nearing an end. The record is +4.5°C for the week centered around June 29, 1983.

Through 9 am, JFK Airport has received 2.05" of rain. That breaks the old record of 1.90" from 1948.

Newark has now received 1.67" of rain today. That breaks the August 3 daily record of 1.60" from 1885. As was the case with the most recent large rain event, the White Plains precipitation gauge is down. Although the data shows 0.04" on July 29 and 0.02" on July 30, those figures understate the actual figures, as the gauge was down for large stretches of rain.

Denver has quietly reached and then surpassed 40 90° or above days. What was once an uncommon event has now become routine in the warming climate. Through August 2, 2026, Denver has had 41 such days. During 1872-1999, Denver saw 40 or more such days about once every 7.5 years. Since 2000, such years have occurred once every 1.2 years. Eleven of the last 12 years have seen 40 or more such days.

A moderate to significant rainfall is likely tomorrow into Tuesday. Much of the New York City area will likely see 0.50"-1.50" of rain. An area of 2.00"-3.00" rainfall with locally higher amounts is possible, especially north and west of New York City. No exceptional heat is likely through the first week of August. The ENSO Region 1+2 anomaly was +3.8°C and the Region 3.4 anomaly was +2.2°C for the week centered around July 23. For the past six weeks, the ENSO Region 1+2 anomaly has averaged +3.38°C and the ENSO Region 3.4 anomaly has averaged +1.92°C. The ongoing strong El Niño will continue to strengthen through the summer. The SOI was -7.77 today. The preliminary Arctic Oscillation (AO) was -0.297 today.

August 2026 calendar with record highs and record lows for Central Park.

August has begun on a quiet but warm note. No exceptional heat or severe storms were present to mark the start of the month. Tomorrow will be another quiet day with readings reaching the lower 80s. Afterward, a moderate to potentially locally significant rainfall is likely Monday into Tuesday. No exceptional heat is likely through the first week of August. The ENSO Region 1+2 anomaly was +3.8°C and the Region 3.4 anomaly was +2.2°C for the week centered around July 23. For the past six weeks, the ENSO Region 1+2 anomaly has averaged +3.38°C and the ENSO Region 3.4 anomaly has averaged +1.92°C. The ongoing strong El Niño will continue to strengthen through the summer. The SOI was -21.67 today. The preliminary Arctic Oscillation (AO) was -0.423 today.

The map is dated. Nevertheless, winter fire activity in South America has so far been largely suppressed by a wetter to much wetter than normal start to winter. The U.S. has seen a fairly sizable pickup in fire activity in late July.

The first half of June+first half of July would have ranked as the 10th warmest such period. The second half of June + second half of July would rank as the 51st coolest such period (mean temperature: 74.0°; 2009 with a mean temperature of 68.0° is the coolest such period).

Heat domes aren't new. But the warming background climate has made even relatively ordinary heat domes much hotter than they were decades ago. Regional patterns coupled with a wetter climate has likely contributed to the recent absence of long-duration heatwaves in parts of the Northeast.

Thank you. I made it.

DCA _ NYC _ BOS _ ORD _ ATL _ IAH _ DEN _ PHX _ SEA 0.3 0.3 0.8 1.5 2.0 0.5 2.0 2.0 1.6

The extreme heat was more the focus of climate change in my post, which merely noted that France was "wildfire-swept." At least for now, my understanding is that the connection between climate change and extreme heatwaves is stronger than the more complex linkage between climate change and wildfires. Nevertheless, there is a fairly prominent link. Since my initial post, World Weather Attribution (WWA) has published a rapid attribution report. Consistent with the expectations from a growing body of scientific literature, including one Nature piece talking about the future that I posted, climate change contributed. Excerpts: In Spain, January 2026 was the wettest January of the last quarter of a century (AEMET, 2026). In particular, in the area affected by the Ávila–Madrid–Toledo fire, rainfall was 175% higher than usual, which allowed a great accumulation of plant biomass. The summer of 2026 began with record-breaking temperatures and a severe drought, both conditions exacerbated by human-caused climate change (WWA, 2026a; WWA, 2026b). This sequence resulted in high fuel loads that then dried to become highly flammable, increasing the intensity of the fires... In 2025, WWA conducted two rapid attribution studies on fires in Spain and Portugal (WWA, 2025a) and Turkiye, Cyprus and Greece (WWA, 2025b), alongside a retrospective analysis of the entire wildfire season in several European regions (Keeping et al., 2026b). Across all three studies, we found that human-caused climate change was a key driver of the fire weather conditions, primarily through its influence on exceptionally high temperatures, but also by exacerbating drought conditions... The weeks leading up to the fires were characterised by a succession of extreme heatwaves and low rainfall across much of Western Europe, despite it still being comparably early in the season. Recent studies have shown human-caused climate change increased the likelihood of these hot and dry antecedent conditions, which were essential for the development of the extreme fire weather that enabled the fires... In both study regions observations show strong trends of increasing likelihood and severity with global warming. DSR7x values as extreme as those observed in central Spain in July 2026 are now at least 20 times more likely than in a pre-industrial climate. In the French regions the statistical model fits the data less closely and may underestimate the return period of the event, thus the result of an increase in likelihood by at least a factor two in southwest France is a conservative estimate... A recent attribution study has shown that climate change is increasing the likelihood of severe soil moisture drought through higher atmospheric evaporative demand, while the same sequence of above-average winter rainfall followed by exceptional spring drying was identified as a key driver of the 2025 Iberian wildfires. Finally, the WWA rapid attribution report cites and links to a fairly large number of papers on fire weather in Europe, many of which have relevance to the impact of climate change.

July 2026 finished with a monthly mean temperature of 76.4°, which was 1.1° below normal (0.1° below the 1981-2010 baseline).