Union City, CA Weather

Apr 18 2025 at 08:34:13 UTC

Large-scale pressure changes following a strong sudden stratospheric warming event in mid-March 2025, which caused the collapse of the polar vortex, are expected to drive spring weather patterns across Canada and the United States into May. Northerly winds are expected to bring colder air into parts of North America, while high-pressure zones may lead to warmer conditions in the central U.S. and southern Canada. The shifts in weather patterns are consistent with the typical effects observed following a polar vortex disruption, where the jet stream becomes more erratic, leading to unusual temperature distributions and weather events.

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Apr 18 2025 at 04:46:59 UTC

The Lyrid meteor shower, caused by debris from Comet Thatcher, will peak from April 21 to April 22, 2025, with an expected rate of 10--15 meteors per hour. It will be best visible in the Northern Hemisphere, and rare surges and fireballs may occur under favorable conditions,

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Apr 18 2025 at 00:51:16 UTC

A fast-moving wildfire named the Rio Grande Fire has burned approximately 61 ha (150 acres) near Bosque Farms in Valencia County, New Mexico, with 0% containment as of early April 18, 2025. The fire started just before 16:00 MDT on April 17 at the far west end of Lillie Drive, burning through the Bosque area...

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Apr 18 2025 at 00:36:50 UTC

At least 15 tornadoes touched down in Iowa and Nebraska on April 17, 2025, as a severe weather system swept through the region. Tornadoes were confirmed in Omaha, Nebraska, and Essex, Iowa, damaging homes, toppling power lines, and causing significant disruption to local communities.

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Apr 17 2025 at 11:33:37 UTC

Severe weather, including heavy rains, flash floods, and thunderstorms, is forecast to impact a broad region from lower Michigan to the southern Plains starting Friday, April 18, 2025, and continuing through the weekend, placing tens of millions of people on alert.

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Apr 17 2025 at 10:43:33 UTC

Severe Tropical Cyclone Errol weakened to Category 3 strength on Thursday, April 17, 2025, after having rapidly intensified to a Category 5-equivalent system on April 16 — the first such tropical cyclone of the year globally. The system continues to weaken as it approaches the west Kimberley coast, Australia.

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Apr 17 2025 at 09:05:24 UTC

M5.2 earthquake that struck San Diego County near Julian on April 14, 2025, occurred along the Elsinore Fault Zone, a major strike-slip fault in Southern California capable of producing earthquakes up to magnitude 7.8. The fault runs near densely populated areas including Los Angeles, Long Beach, and Riverside, and its long period of limited activity may indicate an increased potential for a significant seismic event, according to recent research.

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Apr 17 2025 at 04:42:22 UTC

A very bright fireball streaked across the sky over Mexico City at 09:47 UTC (03:47 local time) on April 16, 2025, disintegrating in the atmosphere with a bright flash and loud rumble.

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Apr 17 2025 at 03:17:24 UTC

A late-season winter storm is forecast to deliver up to 60 cm (2 feet) of snow across parts of the Rocky Mountains through April 19, 2025, prompting winter storm alerts from Montana to Colorado. Hazardous driving conditions across the Rockies are expected through late week.

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Apr 17 2025 at 02:41:36 UTC

Volcanic ash has been increasingly detected in the steam and gas plume at White Island volcano, New Zealand, over the past few months, prompting authorities to raise the Volcanic Alert Level to 3 on April 17, 2025. Intermittent explosive activity observed during aerial monitoring supports the assessment of elevated volcanic unrest.

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Apr 18 2025 at 8:59 am PDT

Apr 18 2025 at 5:09 am PDT