Forecast amount
Snow, 6 hours
For
How much snow will fall in each 6 hours, in inches on the ground: where a storm turns to snow, and how heavy.
.136 in
Forecast map / Forecast total
Forecast snow total map
Over US-395 - Coso Rest Area, California, where the map opens. The whole country
All the snow forecast from now to each frame, in inches: a storm’s whole snowfall, and the week’s. How to read it.
What the snow total map shows
All the snow forecast from now to each frame, in inches: a storm’s whole snowfall, and the week’s, adding up as it plays.
How to read it
- Under 1 in
- A dusting.
- 1 to 4 in
- A minor snow.
- 4 to 8 in
- A winter storm in most places.
- 8 to 12 in
- A major snowfall.
- Over 12 in
- Deep snow; in the mountains, the snowpack building.
What it is for
- See a storm’s whole snowfall before it starts.
- Plan for the mountains: fresh snow on the passes and ski areas.
- Judge the load on roofs and trees.
How it is made
The forecast maps are drawn from the national blend of the forecast models: the models joined into one forecast and corrected against what each place has measured, on a grid 1.6 miles across, the forecast the country’s forecasters start from. Each of its main runs, four a day, is read whole, laid onto the same grid of latitude and longitude as the radar at 2.8 miles a cell, and played forward from now.
A frame every 6 hours, each the total to then, played as a loop of 1 to 7 days. As data: /radar/now.json?show=fsnt, the times of its frames.
In the Field Book
- BlizzardFB-EVT-081
- Snowpack strataFB-WAT-031
Over a state
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With it
Alerts in forceWeather by stateForecast accuracyInstrument atlas
Beside it
Forecast, each night
Lows
For
The lowest temperature of each night for the next seven days: frost, freeze, and warm nights that bring no relief.
-20110 F