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Map of regions covered by the 122 Weather Forecast Offices. The National Weather Service operates 122 weather forecast offices. [1] [2] Each weather forecast office (WFO or NWSFO) has a geographic area of responsibility, also known as a county warning area, for issuing local public, marine, aviation, fire, and hydrology forecasts.
Convective outlooks are issued by the Storm Prediction Center in Zulu time (also known as Universal Coordinated Time or UTC). [29] The categories at right refer to the risk levels for the specific severe weather event occurring within 25 miles (40 km) of any point in the delineated region, as described in the previous section.
A high risk severe weather event is the greatest threat level issued by the Storm Prediction Center (SPC) for convective weather events in the United States. On the scale from one to five, a high risk is a level five; thus, high risks are issued only when forecasters at the SPC are confident of a major severe weather outbreak.
A map shows the temperature departures from historical average across the U.S. Temperatures will be above the historical averages across many northern areas of the United States this winter ...
Widespread heat has shattered records from coast to coast throughout the first half of summer, but the longest days of 2023 are in the rearview mirror and cooler weather is on the horizon.
This image is in the public domain because it was stored on the web servers of the U.S. Storm Prediction Center, which is part of National Weather Service.NWS-created images are automatically public domain in the U.S. since the NWS is a part of the U.S. government.
In 2023, a total of 7,127 wildfires burned across California, according to data from the California Department of Forestry and Fire Protection. As a result of those fires, 324, 917 acres burned ...
The most California tornadoes on a single day in the state was seven, which occurred on November 9, 1982. [58] In July 2004, a twister touched down in Sequoia National Park at an altitude of around 12,156 ft (3,705 m), making it the highest elevation for a confirmed tornado in the United States.