AWH 3-17

Chapter 3, Overview of Aviation Weather Information 3-17 3.4.2.3 Products with Wind Shear Information Table 3-6. Weather Element: Wind Shear Type: text (T), graphic (G), image (I), voice (V) Wind Shear Information Contained In: Type Summary Observations ATIS V LLWS and/or microburst is included in ATIS broadcast for 20 minutes following last report. PIREP/AIREP T, G, V Wind shear is included in the RMK section when reported. Analysis Advisories Convective SIGMET T, G Possible LLWS is implied within the convective SIGMET area. AIRMET T, G AIRMET Tango issued when non-convective LLWS potential below 2,000 ft AGL is occurring or expected to occur. LLWAS T A wind shear alert occurs when wind shear ±15 kt is detected. Forecasts TAF T, G Included in the non-convective LLWS group. AFD T Describes the weather conditions as they relate to a specific TAF or group of TAFs, including non-convective LLWS. Tools GFA Tool G Interactive website that includes overlay of AIRMET for non-convective LLWS. Flight Service Interactive Map G Interactive website that includes overlay of AIRMET for non-convective LLWS. 3.4.2.4 Products with Visibility Information Table 3-7. Weather Element: Visibility Type: text (T), graphic (G), image (I), voice (V) Visibility Information Contained In: Type Summary Observations METAR and SPECI (ASOS, AWOS, ATIS) T, G, V Visibility is reported in the body section of the METAR/SPECI. The visibility is reported in statute miles. PIREP/AIREP T, G, V Distance for visibility is reported by the pilot in statute miles. Weather Camera I A rough estimate could be inferred when known distance features are seen on the camera. Analysis Surface Analysis Chart G Certain surface analysis charts may include the reported visibility in the station plot model.