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The international definition of fog is a visibility of less than 1 km (3,300 ft); mist is a visibility of between 1 km (0.62 mi) and 2 km (1.2 mi) and haze from 2 km (1.2 mi) to 5 km (3.1 mi). Fog and mist are generally assumed to be composed principally of water droplets, haze and smoke can be of smaller particle size.
New York City police and Office of Emergency Management vehicles parked near Times Square in New York City during a 2015 blizzard warning.. A blizzard warning (SAME code: BZW) is a hazardous weather statement issued by Weather Forecast Offices (WFO) of the National Weather Service (NWS) in the United States, which indicates heavy snowfall accompanied by sustained winds or frequent gusts of 35 ...
NOAA distributed this Northern Lights visibility prediction map. But viewers much further south are reporting seeing auroras in their areas. See the full map and description on the NOAA site.
They indicate the type of weather experienced during the past six hours. The weather types are limited to obstructions of visibility and precipitation. [5] Animations may depict a time series of station model conditions which is most often used to show recent changes in weather conditions and are useful in nowcasting and forecasting.
National winter weather forecast The map below shows the probability that an area could receive more than 4 inches of snow. Use the slider at the top left to toggle by day.
Conditions approaching a blizzard whiteout in Minnesota, on March 1, 2007. Note the unclear horizon near the center. Note the unclear horizon near the center. Low pressure systems moving out of the Rocky Mountains onto the Great Plains, a broad expanse of flat land, much of it covered in prairie , steppe and grassland , can cause thunderstorms ...
A surface weather analysis for the United States on October 21, 2006. By that time, Tropical Storm Paul was active (Paul later became a hurricane). Surface weather analysis is a special type of weather map that provides a view of weather elements over a geographical area at a specified time based on information from ground-based weather stations.
In the Milwaukee area, the Sunday forecast calls for mostly sunny skies most of the day, but a storm and scattered showers are expected to roll in around 4 p.m. that could result in cloud coverage ...