Union City, CA Weather - Emergency and Disaster Information Resources

Emergency and Disaster Information Resources

NASA Earth Observatory Natural Hazards - Image of the Day

Wildfire Smoke Billows Over Northern California

Amid scorching heat and low humidity, the Green and Butler fires have burned tens of thousands of acres and choked nearby communities with smoke.

Disaster Preparedness

Emergency/Disaster Communications

Current Emergency and Disaster Event Information

The Watchers

Tropical Storm Wipha makes landfall in northern Vietnam, disrupting transport and triggering floods

Jul 22 2025 at 09:51:12 UTC

Tropical Storm Wipha made landfall in northern Vietnam around 10:00 local time (LT) on July 22, 2025, bringing heavy rainfall of up to 500 mm (20 inches), sustained winds up to 102 km/h (63 mph), and widespread disruptions.
Source
July 22 predicted to be the second-shortest day of 2025 as Earth spins faster than usual

Jul 22 2025 at 05:56:29 UTC

Earth is predicted to spin about 1.34 milliseconds faster than usual on July 22, 2025, making it one of the shortest days on record. If the latest data holds up, July 22 is likely to be the second-shortest day of 2025 with July 10 likely being the first with 1.36 milliseconds, once confirmed.
Source
More than 130 strong aftershocks recorded after M7.4 earthquake east of Petropavlovsk-Kamchatsky, Kamchatka

Jul 22 2025 at 05:34:02 UTC

Strong aftershocks continue shaking eastern Kamchatka following a powerful M7.4 earthquake that struck east of Petropavlovsk-Kamchatsky at 06:49 UTC on July 20, 2025. A total of 136 M4+ earthquakes, including six foreshocks and multiple M6+ events, have been recorded since the sequence began.
Source
At least 6 dead and 15 missing as floods strike Islamabad, Gilgit-Baltistan, and Khyber Pakhtunkhwa, Pakistan

Jul 22 2025 at 03:19:01 UTC

At least 6 people were killed and 15 others reported missing after floods struck parts of Pakistan, including Islamabad, Gilgit-Baltistan, and Khyber Pakhtunkhwa on July 21, 2025. Rainfall totals reached 145 mm (5.7 inches) in Saidpur, triggering multiple wall collapses and widespread damage.
Source
Floods and landslides hit Fuzhou, China after 296 mm (11.65 inches) of rain in 12 hours

Jul 21 2025 at 15:20:32 UTC

A total of 296 mm (11.65 inches) of rain fell in just 12 hours, triggering widespread flooding and a landslide that blocked a tunnel in Fuzhou, Fujian Province, China on July 21, 2025.
Source
Asteroid 2025 OS flew past Earth at just 0.03 lunar distances

Jul 21 2025 at 13:58:24 UTC

A newly discovered asteroid designated 2025 OS flew past Earth at a distance of just 0.03 LD (0.00007 AU / 10 457 km / 6 498 miles) at 03:21 UTC on July 19, 2025.
Source
48.7°C (119.7°F) recorded at Dongkan station, setting China’s third-highest official temperature on record

Jul 21 2025 at 10:49:05 UTC

Dongkan National Meteorological Station in the Turpan Basin, Xinjiang, recorded an air temperature of 48.7 °C (119.7 °F) on July 20, 2025, setting a new all-time high for the station. Two nearby automated weather stations in the basin recorded temperatures over 50 °C (122 °F) the same day, including Mangxiaohu at 50.7 °C (123.3 °F). This marks one of the highest official temperatures ever recorded at a national meteorological station in China.
Source
Flash Flood Emergency declared in Fayette County, Illinois after 130–150 mm (5–6 inches) of rain

Jul 21 2025 at 07:59:48 UTC

A Flash Flood Emergency was issued for central Fayette County, Illinois between 23:08 local time (LT) on July 20, 2025, and 02:15 LT on July 21, after 130--150 mm (5--6 inches) of rain.
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At least 36 dead after tourist boat capsizes in Ha Long Bay, Vietnam

Jul 21 2025 at 06:34:20 UTC

36 people were reported dead after a tourist boat capsized in Vietnam's Ha Long Bay as strong winds near flipped it near the Đầu Gỗ Cave on July 19, 2025.
Source
Volcanic eruption at Sundhnúk crater row causes hazardous air quality in southwest Iceland

Jul 21 2025 at 05:00:09 UTC

Volcanic haze and elevated levels of sulfur dioxide (SO2) from the Sundhnúk crater range eruption are affecting the western half of Iceland, especially the southwesternmost regions. The Icelandic Meteorological Office forecasts persistent volcanic haze in the south and west through Monday, due to slow and variable winds.
Source

Global Disaster Alert and Coordination System
Tropical Cyclone Alerts

Near real-time alerts about natural disaster with a potential humanitarian impact

Green alert for tropical cyclone TEN-25. Population affected by Category 1 (120 km/h) wind speeds or higher is 0 (0 in Tropical Storm).

From 22/07/2025 to 22/07/2025, a Tropical Depression (maximum wind speed of 83 km/h) TEN-25 was active in NWPacific. The cyclone affects these countries: Japan, Taiwan, China (vulnerability Medium). Estimated population affected by category 1 (120 km/h) wind speeds or higher is 0 (0 in tropical storm).

Orange alert for tropical cyclone WIPHA-25. Population affected by Category 1 (120 km/h) wind speeds or higher is 5.426 million .

From 18/07/2025 to 22/07/2025, a Tropical Storm (maximum wind speed of 120 km/h) WIPHA-25 was active in NWPacific. The cyclone affects these countries: China, Viet Nam, Philippines (vulnerability Medium). Estimated population affected by category 1 (120 km/h) wind speeds or higher is 5.426 million .

Green alert for tropical cyclone 01-20252026-26. Population affected by Category 1 (120 km/h) wind speeds or higher is 0 (0 in Tropical Storm).

From 17/07/2025 to 18/07/2025, a Tropical Depression (maximum wind speed of 63 km/h) 01-20252026-26 was active in SWIndian. The cyclone affects these countries: [unknown] (vulnerability [unknown]). Estimated population affected by category 1 (120 km/h) wind speeds or higher is 0 (0 in tropical storm).