MAP NRST WPT AUX AIRPORT METAR TAF HAYWARD EXECUTIVE HAYWARD CA PUBLIC KHWD WIND DIR: 300  WIND SPD: 6 KT  VISIBILITY: 10SM  CLOUDS:  9000FT FEW  TEMPERATURE: 11 C DEW POINT: 1 C  ALTIMETER: 30.11  IN  ORIGINAL METAR TEXT:  SA KHWD 162154Z NONE 10L 10R 28R 28L KHWD 5 338 1 1652 200 46 13.7 2300 23.0 NAV1 116.00 115.40 NAV2  113.90 117.95 123.850 125.100  COM1 118.600 120.600 COM2 GS  123kts  DIS  53.2NM ETE  25:58  ESA  16800 ENGINE INFO DP STAR APR MAP WX WPT - WEATHER INFORMATION NORTH UP METAR window TAF window Figure 5-18. METAR and TAF data shown on an MFD. Broadcast Weather Products Versus Onboard  Weather Sensors Preflight Overview Track Progress of Significant Weather En Route Investigate Weather Phenomena Reported by Radio 5-13 more than ever, weather briefing is an activity that begins  prior to departure and continues until the flight is completed. airports. Since not all weather products can be viewed at once,  a key pilot skill is the ability to determine which weather  products to display at what times. A broadcast weather service allows you to see these products  in the cockpit. Most systems offer a movable cursor that  allows scrolling through the display to center on any location  along the route. This capability, combined with the MFD’s  range control, allows you to look for significant weather  anywhere along the planned route of flight prior to departure. Onboard weather sensor systems and broadcast weather  services contribute to the weather decision‑making process  in slightly different ways. Broadcast weather services provide  delayed information over a wider coverage area. Broadcast  weather services are useful for making strategic decisions  about which areas to fly into and which areas to avoid. Using  a broadcast weather product to attempt to find a hole in a line  of thunderstorms is inappropriate, since you cannot know if  the current location of the thunderstorm cells is the same as  when the broadcast weather product was generated. Onboard  weather sensor systems provide real‑time information about  weather phenomena in the immediate proximity of the  aircraft. Onboard weather sensor systems are useful when  making immediate, close-range decisions about flying in  the vicinity of potentially hazardous weather phenomena.  You must keep in mind the limitations of onboard weather  systems. The same scroll and range control features allow you to look  ahead and check for weather conditions along upcoming  portions of the flight route. Weather forecasts, such as TAFs,  SIGMETs, and AIRMETs, issued after departure can be  easily checked en route. You can use cockpit weather systems to further investigate  advisories received from HIWAS and other radio broadcasts.  Another practical use is to check the METAR for a destination  airport before flying in range of the airport’s ATIS broadcast.  When you suspect that changing weather conditions have  made continuation to the destination airport inadvisable, the  radar and satellite features can be used to search for alternate 