AWH · Chapter 3
AWH 3-36
Page 3-36
Chapter 3, Overview of Aviation Weather Information 3-36 Space Weather Information Contained In: Type Summary Advisories Space Weather Advisory T Issued whenever space weather conditions exceed predefined ICAO thresholds for both moderate and severe impacts. Provides an observed or expected location for the impact and 6-, 12-, 18-, and 24-hour forecasts. Forecasts (See Space Weather Advisory) Tools 3.4.2.24 Products with Density Altitude Information Table 3-27. Weather Element: Density Altitude Type: text (T), graphic (G), image (I), voice (V) Density Altitude Information Contained In: Type Summary Observations ASOS, AWOS, and ATIS V Included in the ASOS and AWOS broadcasts (phone and radio) when density altitude exceeds the field elevation by more than 1,000 ft. A density altitude advisory (i.e., “check density altitude”) is broadcast on ATIS when appropriate. Analysis Advisories Forecasts Tools
Retrieved from ecfr.gov on July 18, 2026.