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.

https://www.solarham.net/

 

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/