Search results
Results from the WOW.Com Content Network
The Advanced Weather Interactive Processing System (AWIPS) is a technologically advanced processing, display, and telecommunications system that is the cornerstone of the United States National Weather Service's (NWS) operations. [1]
Integrated Surface Database (ISD) is global database compiled by the National Oceanic and Atmospheric Administration (NOAA) and the National Centers for Environmental Information (NCEI) comprising hourly and synoptic surface observations compiled globally from ~35,500 weather stations; it is updated, automatically, hourly.
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.
The office schedules a required weekly test of the Specific Area Message Encoding system for public alert dissemination on all ten NOAA Weather Radio transmitters in the region each Wednesday at 11:00 a.m. and 7:00 p.m. Central Time; exceptions exist if there is a threat of severe weather that day within the listening area of any or all of the ...
An array of CODAR sites can be employed to obtain regional coverage. In a multiple radar configuration, spacing between two radar systems should be approximately 15 to 40 km for long-range open ocean mode and 8 to 20 km in short-range mode. [7] Typically, CODAR data are averaged over one hour to reduce the noisiness of the sea echo.
The evacuation of half a million people ahead of the hurricane was determined to be the largest evacuation in U.S. history at the time, according to a report by the National Weather Service (NWS).
A plan position indicator (PPI) is a type of radar display that represents the radar antenna in the center of the display, with the distance from it and height above ground drawn as concentric circles. As the radar antenna rotates, a radial trace on the PPI sweeps in unison with it about the center point. It is the most common type of radar ...
NOAA's National Weather Radar Testbed (NWRT) is a phased array radar (PAR) being tested and evaluated in Norman, Oklahoma. The NWRT was established to demonstrate the potential to simultaneously perform aircraft tracking, wind profiling, and weather surveillance as a multi-function phased-array radar (MPAR) .