DIRECT CME EARTH IMPACT EXPECTED - 05/10/2017

By: Gordon Rutherford Tuesday, May 9, 2017 17:06:40 UTC :Product: Forecast Discussion :Issued: 2017 May 09 1230 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # CME DIRECT IMPACT EXPECTED :Product: Forecast Discussion :Issued: 2017 May 09 1230 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center . Solar Wind (24 hr Summary) Solar wind parameters reflected a nominal solar wind regime. Solar wind speeds averaged near 380 km/s. Total field strength (Bt) varied between 1-6 nT and Bz had a maximum southward deflection of -2 nT. The phi angle was mostly negative. Forecast Solar wind parameters are expected to be at near-background levels on day one (09 May). Solar wind parameters are then expected to become enhanced early on day two (10 May) due to the anticipated arrival of the 04 May CME, and remain enhanced into day three (11 May).