Where it came from · last 72 hours
Following your air backward
NOW
3 days ago
now
Tracing air backward…
DryMoist
near ground5,000 ft10,000 ft
Read your air's story
Where did your friends' air come from?
Look up · 0 to 40,000 ft
Your sky is a stack of layers
Each layer has its own clouds, water and wind.
What am I looking at?
The dots are the three heights we traced back three days. Layers stacked above you often come from different places.
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Around you · last 50 minutes
Rain shows on radar. Clouds don't.
Flip between Rain and Clouds to compare.
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The numbers · —
For the weather nerds
Dew point
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Humidity
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Wind
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Cloud base
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Why dew point, not humidity?
Relative humidity swings all day with the temperature. Dew point measures how much water is actually in the air, so it tracks what your skin feels.
How the air trail is traced
We start at your spot and follow the model winds backward three hours at a time for three days, at about 2,500, 5,000 and 10,000 ft. It runs in your browser on Open-Meteo data. Treat it as the general path: it gets less certain the further back it goes.
Coming next
The planet view: the jet stream and the big highs and lows that steer everything above you.
Why is it so…
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Data: Open-Meteo (CC BY 4.0) ·
NWS ·
radar via Iowa Environmental Mesonet ·
satellite via NASA GIBS ·
basemap OpenFreeMap © OpenMapTiles · map data and place search © OpenStreetMap contributors (search by Photon).
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