How to predict a great sunset
Three clues decide whether tonight's sky catches fire, and one of them is 100 km away.
2:48
Why Kp 5 Doesn't Mean You'll See the Aurora
Kp describes a planetary geomagnetic disturbance. Aurora viewing also depends on the oval, darkness and clouds where you are.
2:47
How to See a Meteor Shower
A shower advertised at 150 meteors an hour may yield far fewer in your backyard. Learn how radiant height, light and cloud change the count.
2:42
Will This Storm Hit Me?
The closest storm may be moving away. Learn to read direction, severe-weather probability and estimated arrival together.
2:44
Did It Hail at My House?
Compare eyewitness reports and radar-estimated hail size, understand their blind spots, and learn what a storm record can establish.
2:37
Severe Weather Outlook Risk Levels Explained
Decode Marginal through High, understand probabilities within 25 miles, and separate an outlook from a watch or warning.
2:34
How to Read Weather Radar
Decode radar colours, beam height, storm motion and future frames so a weather map tells you more than where the brightest patch is.
1:59
How Live Radar Reaches Your Phone
Follow a national radar scan from millions of values through verified tiles, nearby caches and GPU motion into one smooth loop.
2:35
What AQI and PM2.5 Mean
Understand fine particles, the uneven US AQI scale and why smoke overhead can tell a different story from the air near the ground.
2:18
How Rain Nowcasting Works
Why a forecast can say rain starts in twelve minutes, why that countdown can jump, and how to use a next-hour forecast sensibly.
2:33
Why Weather Apps Disagree
Two rain chances can reveal uncertainty. Learn how imperfect starting data, forecast choices and probability definitions create the gap.
The forecast that explains itself.
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