Alert to Pilots Around Chicago- New Arrival to PWK
Pilots transiting Lake Michigan shoreline beneath Chicago Class B should use caution for traffic at or below 2500 MSL on the PWK RNAV (GPS) RWY 30 approach. PWK RNAV (GPS) RWY 30 in use when KPWK ATIS includes arrivals to expect PWK RNAV (GPS) RWY 30 circle RWY 34. This new arrival procedure is added as a safety measure to avoid opposite direction operations at KPWK when arrivals on approach to KPWK RWY 16 conflict with opposite direction aircraft departing KPWK RWY 34. For questions call: 847-608-5591 PWK VFR Chart: https://www.faasafety.gov/files/notices/2024/Feb/Chart_KPWK.pdf PWK IFR Chart: https://www.faasafety.gov/files/notices/2024/Feb/IFR_Chart_PWK.pdf
Volcanic explosion penetrates both upper atmosphere and upper crust around the globe
The January 15, 2022 satellite view of the small, uninhabited South Pacific island known as Hunga Tonga-Hunga Ha‘apai, from NOAA's Geostationary Operational Environmental Satellite 17 (GOES-17). This looping video shows the intense series of eruptions that generated atmospheric shock waves, sonic booms, and tsunami waves. On January 15, 2022, the Hunga Tonga-Hunga Ha’apai (HTHH) volcano, 44 miles/70 kilometers south of the Tongan capital of Nuku’alofa, began erupting with a violent explosion. The eruption, one of the largest in the past century, pushed a plume of volcanic ash higher in the atmosphere than ever recorded, about 35 miles/56 kilometers into the sky. In addition to