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Local forecast by "City, St" or Zip Code   Advisories SIGMET/AIRMET » Java Tool US (CONUS) AWC Oceanic Center Weather Forecasts Convection » Convective SIGMETs CCFP NCWF Java Tool NCWF Loop Convective Outlook Convective Watches Mesoscale Discussion Turbulence Icing Winds/Temps » Winds/Temps Text Winds/Temps Images Prog Charts » High-Level (250-630) Mid-Level  (100-450) Low-Level (SFC-240) Surface TAF / FA » Area Forecasts TAF Java Tool TAF Request Forms Observations PIREPs » PIREP Java Tool PIREP Request Forms METARs » METAR Java Tool METAR Request Form Radar » Site Radar United States Radar Satellite » United States International Java Tools » FPT Application Flight Path Tool AIR/SIGMETs Convection TAFs PIREPs METARs Related Information Home » ADDS Home AWC Home Flight Folder Standard Briefing Aviation Testbed Aviation Links Contact Us FAQ Feedback » ADDS Feedback AWC Feedback Site Information » ADDS Site Info AWC Site Info

04 September 2008: On November 5, 2008 The AWC will eliminate the use of Above Ground Level (AGL) in Dallas and Chicago area forecasts See Technical Implementation Notice 08-70 for details. 06 August 2008: On 01 October 2008, The AWC will begin issuing the Graphical Airman’s Meteorological Advisory (G-AIRMET) as an operational product. See Technical Information Notice 08-40 (AMD) and Supplement for details. 22 April 2008: On November 5, 2008 the Terminal Aerodrome Forecast (TAF) format will change to incorporate the new 30-hour TAF. See Service Change Notice 08-15 and Supplement for details. The Aviation Digital Data Service (ADDS) makes available to the aviation community text, digital and graphical forecasts, analyses, and observations of aviation-related weather variables. ADDS is a joint effort of NCAR Research Applications Program (RAP), Global Systems Division (GSD) of NOAA's Earth System Research Laboratory (ESRL), and the National Centers for Environmental Prediction (NCEP) Aviation Weather Center (AWC).   Current AIR/SIGMETs: The National Weather Service operationally supports this site as well as the following operational products:  • METARs  • TAFs  • PIREPS  • AIR/SIGMETs  • Satellite  • Radar  • Analysis & Prognostic Charts  • Graphical wind & temperature charts  • National Convective Weather Forecast  • Current & Forecast Icing Potential  • Graphical Turbulence Guidance The Federal Aviation Administration funds and directs the continuing development of ADDS as well as other experimental products being developed by the FAA Aviation Weather Research Program (AWRP). The results of the latest ADDS development efforts along with new experimental AWRP algorithm results can be viewed on the experimental ADDS site.   Other News  (Updated: June 20, 2007) COSPAS-SARSAT will cease satellite monitoring of the 121.5 MHz frequency on February 1, 2009. If you fly an aircraft with an ELT, please visit www.sarsat.noaa.gov for further information. Turbulence     Icing     Convection     Winds/Temps     Progs     Java Tools METARs     TAFs     PIREPs     SIGMET/AIRMET     Satellite     Radar 0 Page loaded:   04:44 UTC 09:44 PM Pacific  |   10:44 PM Mountain  |   11:44 PM Central  |   12:44 AM Eastern NOAA's National Weather Service National Centers for Environmental Prediction Aviation Weather Center 7220 NW 101st Terr., Room 118 Kansas City, MO 64153-2371 Contact ADDS Internet Services Page last modified: September 15, 2008 Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities