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Propagation & Weather
Propagation
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Space Weather by SolarHam.net from VE3EN
Great collection of solar tools and information (lots of photos) to help hams fully understand current conditions.
NOAA Space Weather Prediction Page
The go-to guys for what’s in space http://www.swpc.noaa.gov/communities/radio-communications
Solar Terrestrial Activity Report
Jan Alvestad’s endless search for sunspots
http://www.solen.info/solar/
Sunrise/Sunset calculator for Arizona
Use that grey line for contest advantage
http://www.sunrisesunset.com/usa/Arizona.asp
N0NBH HF Propagation and Solar Data Tools
A fantastic collection of useful, real-time solar & propagation tools you can use, and gadgets to add to your ham website.
http://www.hamqsl.com/solar.html
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WX
NOAA National Weather Service
The go-to guys for what’s in the air
http://www.weather.gov/
Weather Underground
Fun reference site for all things wx-related, including customized forecasts
http://www.wunderground.com/
Vaisala Lightning Explorer
Map displays lightning strikes across US -- updated every 20 minutes.
http://thunderstorm.vaisala.com/explorer.html
Worldwide Lightning Location Network
University of Washington @ Seattle operates this worldwide network of 40 VLF sensors, with excellent displays on their website -- updated every 10 minutes.
http://www.wwlln.org/