A severe flash flood caused by very heavy rainfall resulted in five confirmed deaths and left two children missing in Pennsylvania on Saturday, July 15, 2023. The deluge, measuring between 152 to 178 mm (6 – 7 inches) within 45 minutes, was said to have overwhelmed storm sewers, brooks, and streams.
The eruption of Shishaldin Volcano has intensified, the Alaska Volcano Observatory (AVO) announced at 05:52 UTC on July 16, 2023, and raised the Aviation Color Code to Orange. At 07:57 UTC, the Aviation Color Code was raised to Red and the Volcano Alert Level to WARNING.
A very strong earthquake registered by the USGS as M7.2 hit near the coast of Alaska Peninsula, U.S. at 06:48 UTC on July 16, 2023. The agency is reporting a depth of 32.6 km (20.2 miles). EMSC is reporting M7.4 at a depth of 10 km (6.2 miles).
A significant explosion occurred at Shishaldin Volcano in Alaska, U.S. at 09:09 UTC on July 14, 2023. The Aviation Color Code remains at Orange.
Volcanologists at the Alaska Volcano Observatory (AVO) are reporting increased activity at Shishaldin volcano. As a result, the Aviation Color Code was raised to Orange.
On Wednesday, July 12, 2023, the greater Chicago area was hit by a series of tornadoes and thunderstorms, causing significant disruption to air travel and damaging homes in several counties. The severe weather forced the temporary halt of all air traffic at O’Hare and Midway airports and prompted the evacuation of their control towers.
A historic downpour on Monday, July 10, 2023, unleashed a torrent of over 228.6 mm (9 inches) of rain across Vermont, leading to devastating floods, the worst the region has experienced in almost a century. The capital city, Montpelier, found itself in a precarious position as the Wrightsville Dam teetered on the brink of its capacity, a scenario unseen since its construction.
A destructive landslide tore through luxury homes in Rolling Hills Estates on the Palos Verdes Peninsula in Southern California on Monday, July 10, 2023. The pace of the landslide, which began on Saturday, increased through the weekend and led to the evacuation of residents.
A slow-moving storm system dumped more than 250 mm (10 inches) of rain over the state of New York on July 9, 2023, causing catastrophic flooding. The deluge led to at least one confirmed death in Highlands, Orange County, and triggered a state of emergency in both Orange and Ontario counties.
An intense derecho ripped across the Midwest on Thursday, June 29, 2023, unleashing life-threatening wind gusts of over 160 km/h (100 mph) and leaving more than 500 000 households without power across Iowa, Illinois, and Indiana. This potent line of thunderstorms caused significant property damage and affected millions of Americans.
