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Calexico Faces Seasonal Atmospheric River Risks

Calexico Faces Seasonal Atmospheric River Risks

Calexico, California, experiences heightened weather risks during the atmospheric river season, which spans November through March. These weather systems bring significant precipitation to the region, often leading to localized flooding in low-lying areas near drainage channels. RainViewer provides real-time radar data sourced from NEXRAD stations, including KVTX (Los Angeles), KMUX (Mt Umunhum/San Jose), and KBBX (Sacramento), with updates every 4–6 minutes at up to 250-meter resolution. This radar system helps residents monitor storm movements, which typically approach from the west-southwest off the Pacific Ocean. During the drier months of May through September, precipitation probabilities drop significantly, reducing weather-related risks and allowing for more outdoor activities.

San Rafael Faces Atmospheric River Risks During Rainy Season

San Rafael Faces Atmospheric River Risks During Rainy Season

San Rafael, California, experiences its highest weather risks during the atmospheric river season, which spans from November to March. These events are the primary drivers of precipitation in the region, often leading to heavy rainfall. The San Rafael rain radar, powered by data from NEXRAD stations such as KVTX (Los Angeles), KMUX (Mt. Umunhum/San Jose), and KBBX (Sacramento), provides real-time precipitation updates every 4–6 minutes with a resolution of up to 250 meters. This radar system is particularly useful during seasonal transitions when storm behavior becomes less predictable. The drier season, from May to September, typically sees reduced rainfall activity.

El Niño Brings Heightened Weather Risks to California

El Niño Brings Heightened Weather Risks to California

The National Weather Service (NWS) has issued an informational flyer detailing the potential weather impacts of El Niño in California. This climate phenomenon, characterized by warmer-than-average ocean temperatures, can significantly alter storm patterns and increase atmospheric moisture. Key risks include enhanced heavy rainfall, flash flooding, and urban drainage overflow. Coastal areas may face storm surges, large waves, and severe erosion, particularly during high tides. Additionally, the Sierra Nevada region could experience heavy snowpack at higher elevations, which may affect spring runoff. While El Niño increases the likelihood of these events, it does not guarantee their occurrence everywhere. (Source time: not specified.)

Pacific Northwest Faces Elevated Wildfire Risk Through December

Pacific Northwest Faces Elevated Wildfire Risk Through December

The National Interagency Fire Center (NIFC) has issued a September-December outlook predicting above-normal wildfire potential across the Pacific Northwest, far northern California, and parts of Idaho. As of September 8, 2026, 89 new fires were reported nationwide, with four classified as large. The total number of fires this year has reached 53,665, burning nearly 8.4 million acres, a significant increase from the 48,114 fires and 4.3 million acres burned during the same period last year. The outlook also highlights the influence of a strengthening El Niño, which is expected to bring drier-than-normal conditions to the northern U.S. and wetter conditions to the south through the fall and winter. The Pacific Northwest is expected to experience above-normal temperatures and below-normal precipitation, with drought conditions persisting in the region.

California Faces Elevated Wildfire Risk Amid Dry Conditions

California Faces Elevated Wildfire Risk Amid Dry Conditions

California's wildfire season is currently underway, with normal to above-normal fire potential expected through September 2026, particularly in Northern California's mountainous regions and parts of the upper Sacramento Valley. According to the Western Growers Association (WGA), above-normal temperatures in Southern California and persistent dry conditions across the state are contributing to increased vegetation dryness, heightening the risk of wildfires. Resources such as CAL FIRE's incident updates and the AirNow Fire and Smoke Map are available to monitor current fire and smoke conditions. Additionally, guidance on food safety, soil contamination, and worker health is being provided to mitigate the impacts of wildfires on agriculture and public health. The WGA emphasizes the importance of preparedness and offers a range of resources for farmers, workers, and residents to stay informed and safe during this critical period.

California’s 2020 Wildfires Caused More Than $12 Billion in Damage

California’s 2020 Wildfires Caused More Than $12 Billion in Damage

The 2020 California wildfire season, which saw over four million acres burn, was profoundly influenced by a confluence of adverse weather patterns ...

California Endures Record Heat and Tropical Humidity

California Endures Record Heat and Tropical Humidity

California is experiencing a severe heat wave combined with unusually high tropical humidity, creating oppressive conditions across the state. According to the National Weather Service (NWS), inland temperatures have soared to between 100°F and 108°F (37.8°C to 42.2°C), while coastal areas are seeing highs in the 90s°F (32.2°C). Beaches are slightly cooler, with temperatures in the mid- to upper 80s°F (26.7°C to 31.1°C). The extreme weather is being fueled by lingering moisture from Hurricane Marie and a high-pressure ridge over the region. Dew points have reached 76%, a level typically associated with tropical rainforests, making this one of the most humid summers on record for Southern California. An extreme heat warning is in effect through Thursday for areas including Malibu, Los Angeles County Beaches, Catalina, and the San Gabriel Valley.

Monster Waves Cause Severe Flooding and Damage in Long Beach, California

Monster Waves Cause Severe Flooding and Damage in Long Beach, California

Long Beach, California, experienced significant coastal flooding and destruction as waves up to 12 feet high battered the area on September 7 and 8, 2026. The waves, fueled by offshore Hurricane Marie, record-breaking ocean heat, and an emerging El Niño, breached seawalls, shredded boardwalks, and inundated streets. Approximately 20 homes along the Long Beach Peninsula were evacuated due to the severe flooding. Residents reported extensive property damage, including flooded garages, destroyed vehicles, and structural erosion beneath homes. Public works crews are working to reinforce sand berms to mitigate further damage during high tides.

California Braces for Record Sea Levels Amid King Tides and El Niño

California Braces for Record Sea Levels Amid King Tides and El Niño

California is preparing for potentially record-breaking sea levels this fall and winter as the strongest El Niño in recorded history coincides with the highest king tides in 18 years. King tides, caused by the moon's proximity to Earth and alignment with the sun, create extreme high tides. When combined with El Niño's ocean water buildup along the California coast, these events could lead to significant flooding. Experts warn that this scenario offers a preview of future sea level rise impacts. Coastal areas, particularly within bays, are at risk of combined flooding from storm surges, runoff, and rising groundwater levels. The situation highlights the vulnerability of developed shorelines and the need for robust flood infrastructure and adaptation planning. (Source: PPIC, 2026-09-08)

El Niño Expected to Bring Unprecedented Weather Impacts Across the U.S.

El Niño Expected to Bring Unprecedented Weather Impacts Across the U.S.

The National Oceanic and Atmospheric Administration (NOAA) has reported a greater than 90% chance of a very strong El Niño event this year, which could bring significant weather impacts across the United States. El Niño, the warm phase of the El Niño–Southern Oscillation (ENSO), is characterized by unusually warm sea-surface temperatures in the Pacific Ocean. This phenomenon is expected to strengthen through the end of 2026, with a 69% chance of becoming a 'historic event' surpassing previous El Niños since 1950. California and the Southeastern U.S. are likely to experience intense storms and wetter conditions, while the Great Lakes region may see drier weather. The event could also lead to a warmer winter for much of the U.S., with potential for severe weather, flooding, and even record-breaking heat in some areas. (Source: Newsweek, 2026-09-07, 08:56 PM EDT)

Supersized El Niño Expected to Bring Extreme Weather Across the U.S.

Supersized El Niño Expected to Bring Extreme Weather Across the U.S.

Meteorologists are forecasting a 'supersized' El Niño event this fall and winter, fueled by exceptionally warm Pacific Ocean temperatures. According to the World Meteorological Organization (WMO), this El Niño is set to become 'very strong,' potentially the largest in at least 1,000 years. Impacts are expected to vary across the U.S., with increased chances of heavy precipitation and flooding on the West Coast, reduced snowpack in the Northern Rockies, and elevated risks of severe weather in the Southeast. Experts warn that 2027 could become the hottest year on record due to this phenomenon. While no two El Niño events are identical, historical patterns suggest significant weather disruptions, including heavy rains, flooding, and coastal storms. Communities are advised to prepare for elevated risks, particularly in vulnerable areas like California and the Gulf Coast.

Intense Heat in Los Angeles Drives Power Demand Surge

Intense Heat in Los Angeles Drives Power Demand Surge

California is experiencing a significant heatwave, with heat advisories in effect for much of the coast and Central Valley, including Los Angeles and the Bay Area, through Wednesday and Thursday (source: National Weather Service). Temperatures in Los Angeles are forecasted to range from 85°F (29°C) to 105°F, which is 10 to 15 degrees above normal. San Francisco may reach 86°F on Wednesday, while Sacramento is expected to hit 100°F on Thursday. Elevated humidity in Southern California and unusually warm overnight temperatures are compounding the heat's impact. The California Independent System Operator (CAISO) predicts peak electricity demand to reach 47,379 megawatts on Wednesday, with demand slightly lower on Thursday at 45,183 megawatts.