DOE Grid Emergency Order Ends as SPP Conditions Improve
DOE’s temporary SPP grid order expired August 3; SPP says its West-area advisory ended August 4 as heat, outages and wind uncertainty eased.
Extreme Heat
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Peoria students return to school as extreme heat puts district policy in focus
Peoria Unified’s school year began August 3 during an NWS extreme-heat warning. Here’s when the district’s heat policy can change schedules, outdoor activities and athletics.
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D.C. begins testing reflective pavement at five heat-island sites
DDOT launched a five-site pilot of three reflective pavement products, with daytime closures during application and an evaluation report planned by the end of 2026.
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Phoenix heat warning puts cooling centers in focus as highs reach 116
An active Phoenix-area Extreme Heat Warning calls for 109-to-116-degree afternoons through Tuesday. Phoenix residents can use a 24/7 respite center, extended-hour cooling sites and 2-1-1 transportation help.
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Denver opens cooling centers as late-July heat sets daily records
Denver opened recreation centers and libraries for cooling during a late-July extreme-heat episode as daily heat records were set and July tracked toward one of the city’s hottest on record.
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Detroit order halts residential water shutoffs during extreme heat
Detroit Mayor Mary Sheffield’s July 1 executive order directs city departments to protect residents and workers during extreme heat and halts residential water shutoffs during qualifying periods.
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Helena forecast to reach 102°F as Western heat dome raises wildfire risk
Helena was expected to match or exceed its August record high of 102°F on Aug. 1 as a heat dome affected Montana and a broader swath of the West.
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Nashville launches heat patrols as extreme summer temperatures continue
Nashville’s Office of Emergency Management launched heat patrols July 27, 2026, to check on residents vulnerable to extreme heat as hot summer conditions continued.
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Boston forecast calls for thunderstorms after July heat reached 100 degrees
Boston’s forecast for Sunday, Aug. 2 called for thunderstorms, with a listed high of 82 degrees, a low of 68 and a 51% late-afternoon precipitation chance.
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NWS forecast keeps dangerous heat risk in view for Overland Park
The National Weather Service forecast for Overland Park calls for highs near 90 degrees, humid conditions and warm nights through Aug. 3, following a regional extreme-heat episode.
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Annapolis alters July 4 operations and expands cooling access during heat wave
Annapolis changed holiday event operations, expanded cooling-center access and scheduled shuttle-only transit service as Maryland entered a July 1-5 state of preparedness for extreme heat.
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Helena listed as unhealthy for sensitive groups as smoke and heat affected region
Montana DEQ listed Helena’s particulate pollution as Unhealthy for Sensitive Groups at 9 a.m. July 27, while National Weather Service forecasts called for smoke and highs near 94 and 102 degrees.
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New York City expands response to dangerous heat and worsening air quality
New York City expanded its response to dangerous heat and worsening air quality on July 15, 2026, making free KN95 masks available through libraries, police precincts, firehouses and transit hubs.
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Philadelphia ends heat-health emergency after early-July extreme heat
Philadelphia ended its citywide heat-health emergency on July 6, after extending the response through Sunday, July 5. The Health Department said residents should continue heat-safety precautions.
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Las Vegas heat wave brought forecast high of 114°F and elevated wildfire risk
Las Vegas was running about 10 degrees above normal as a Western heat wave brought a forecast high near 114°F on Aug. 2 and prompted warnings of elevated wildfire risk in very dry conditions.
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Henderson-area forecast showed 111°F high as late-July heat wave raised wildfire concerns
National Weather Service forecast products showed an extreme-heat warning for the Henderson area and projected a 111°F high on Saturday during the late-July regional heat wave.
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North Las Vegas ZIP Code 89030 Appears in Heat-Vulnerability and Overdose-Risk Analysis
A Southern Nevada Health District analysis identifies ZIP code 89030 among nine 2024 overlap areas as North Las Vegas faces an extreme heat warning through Sunday, August 2.
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Severe Storms, Flash Flooding and Dangerous Heat Threaten Much of the U.S. Through Saturday
The National Weather Service forecasts overlapping severe storms, flash flooding and dangerous heat across different parts of the United States through Saturday.
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WHO Rates Europe Heatwave Moderate Risk as Impacts May Still Rise
WHO/Europe classifies the continuing heatwave as a moderate regional health risk, estimating more than 14,000 excess deaths in a defined peak period.
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AG Demand Leaves Glendale Apartment A/C Dispute Unresolved
Residents at Glendale’s Spectra West Apartments reported dangerous heat after repeated A/C failures; the state demand deadline passed without a verified final resolution.
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Corona heat risk returns Thursday as Inland Empire faces extreme heat warning
Corona, CA – A new extreme heat warning runs July 30-August 2, bringing dangerous conditions across the Inland Empire and added health risks for residents.
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DOE Gives SPP Emergency Backup Tools During Heat Emergency
A temporary federal order gives Southwest Power Pool more tools to manage heat-driven demand across its 17-state footprint through August 3.