Joe Chapman, NV1W, writes on the Boston ARC mailing list:
News from today’s K7RA Solar Report (https://www.wm7d.net/
The latest from US Air Force forecasters Housseal and King at the USAF 557th Weather Wing shows predicted solar flux at 120, 115 and 110 on June 24-26, and Planetary A index of 8, 12 and 15. Field Day is actually on June 25-26, but it is useful to see the prediction for Friday. The planetary A index shoes a moderate but increasing geomagnetic instability.
Solar activity has been sinking all week, but it should still be fine for our purposes and better than the past few years of Field Days. The geomagnetic field is likely to be quiet to unsettled on Saturday, degrading to unsettled to active through mid-day Sunday, so it will probably be a little noisy as we’re trying to wring out those last few points.
Here on Earth, in Westwood Field Day is expected to be dry, warm, and humid, with temperatures in the 80’s to low 90’s, with a slight chance of a brief shower, but chances of a thunderstorm near zero. Drink lots of water and take breaks during setup and teardown. Here’s KD1CY’s SKYWARN coordination message: https://ema.arrl.org/2022/06/
Joe Chapman NV1W
Secretary, Boston Amateur Radio Club