weather.gov National Oceanic and Atmospheric Administration's National Weather Service Site Map News Organization Search NWS All NOAA Local forecast by "City, St" Sign-up for Email Alerts RSS Feeds Warnings Current By State/County... UV Alerts Observations Radar Satellite Snow Cover Surface Weather... Observed Precip Forecasts Local Graphical Aviation Marine Hurricanes Severe Weather Space Weather Fire Weather Text Bulletins By State By Message Type National Forecast Models Numerical Models Statistical Models... MOS Prod GFS-LAMP Prod Climate Past Weather Predictions Weather Safety Weather Radio Hazard Assmt... StormReady / TsunamiReady Skywarn™ Education/Outreach Information Center Tsunamis Publications... Contact Us FAQ Comments... Weather-Ready Nation NWS on Facebook NWS on Twitter NWS on YouTube Home > Glossary National Weather Service Glossary This glossary contains information on more than 2000 terms, phrases and abbreviations used by the NWS. Many of these terms and abbreviations are used by NWS forecasters to communicate between each other and have been in use for many years and before many NWS products were directly available to the public. It is the purpose of this glossary to aid the general public in better understanding NWS products. You can either type in the word you are looking for in the box below or browse by letter. Search: Browse by letter: # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z US Dept of Commerce National Oceanic and Atmospheric Administration National Weather Service 1325 East West Highway Silver Spring, MD 20910 Page Author: NWS Internet Services Team Disclaimer Information Quality Credits Glossary Privacy Policy Freedom of Information Act (FOIA) About Us Career Opportunities Page last Modified: 25 June, 2009 1:01 PM