Land and Rural Retreats St. Ignatius, Lake County, MT Farms and Ranches For Sale - 355 Acres
The solar wind speed at Earth normally lies around 300km/sec but increases when a coronal hole high speed stream (CH HSS) or coronal mass ejection (CME) arrives. During a coronal mass ejection impact, the solar wind speed can jump suddenly to 500, or even more than 1000km/sec.
How strong are Hurricane force winds? On the Beaufort Scale, a Force 8 Gale has wind speeds between 34 to 40 knots (Nautical miles per hour). (Multiply by 1.15 to get miles per hour, 39 to 46 mph; multiply again by 1.6 to get kilometres per hour, 62 to 74 km/h).