National Weather Service United States Department of Commerce

Arctic Blast Set to Arrive on Thanksgiving; Dangerous Wind Chills, Lake Effect Snow, Severe Thunderstorms

A significant arctic outbreak will arrive in the northern Rockies and northern Plains on Thanksgiving into Friday and advance farther south and east through much of the Plains and Midwest this weekend. Dangerous wind chill temperatures are expected with a significant long duration lake effect snow event possible downwind of the Great Lakes. Severe thunderstorms may be possible in the Southeast. Read More >

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General Information

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Example: https://www.weather.gov/wrh/timeseries?site=kslc

A table will appear with 48 hours worth of data from that station. A full list of elements that are chartable is below (Note - Data availability varies by station):

  • Temperature
  • Dew Point Temperature
  • Relative Humidity
  • Wind Chill
  • Wind Direction
  • Wind Speed and Gusts
  • Fuel Temperature
  • Fuel Moisture
  • Sea Level Pressure
  • Altimeter Setting
  • Station Pressure
  • Solar Radiation
  • Soil Temperature
  • Road Temperature
  • Road Sub-Surface Temperature
  • Accumulated Precipitation
  • One Minute Precipitation
  • Five Minute Precipitation
  • Ten Minute Precipitation
  • Fifteen Minute Precipitation
  • Thirty Minute Precipitation
  • One Hour Precipitation
  • Three Hour Precipitation
  • Six Hour Precipitation
  • Twenty four Hour Precipitation
  • Snow Depth
  • Snow Interval
  • Twenty four Hour Snowfall
  • Snow-Water Equivalent
  • Water Temperature

Clouds and Weather

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  • This can sometimes mean that conditions are clear, when a cloud base is above 12,000 feet.

Decoding Cloud Information:

  • Up to 3 layers (the lowest 3 layers) of clouds can be reported.
  • The first 3 letters of a cloud group describe the amount of sky coverage. The last 3 numbers indicate the base of that layer, above the ground x 100 feet.
  • SKC: Sky Clear.
  • CLR: No clouds below 12,000 feet above ground level, as detected by automatic equipment.
  • FEW: Few Clouds - Between 1/8 and 2/8 of the sky is covered by clouds.
  • SCT: Scattered Clouds - Between 3/8 and 4/8 of the sky is covered by clouds.
  • BKN: Broken Clouds - Between 5/8 and 7/8 of the sky is covered by clouds.
  • OVC: Overcast - 8/8 of the sky is covered by clouds.
  • VV: Vertical Visibility - An indefinite cloud ceiling caused by fog, rain, snow, etc.

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