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1. Stump the Expert
December 2015

2. THANK YOU!
Together, we are stronger!
15+ years of innovation, collaboration, evolution, and
success!

3. Q&A

4. Weather Information
Function GetLatLngFromAddress(address)
Dim Lat, Lng, url
url = "http://maps.googleapis.com/maps/api/geocode/xml?address=" & address
Lat = GetXMLNodeValue(url, "result/geometry/location/lat")
Lng = GetXMLNodeValue(url, "result/geometry/location/lng")
GetLatLngFromAddress = Lat & "," & Lng
End Function
Function GetXMLNodeValue(url, nodePath)
Dim oXML, oNode, ret
Set oXML = CreateObject("Microsoft.XMLDOM")
oXML.async = False
Call oXML.load(url)
Set oNode = oXML.documentElement.selectSingleNode(nodePath)
ret = oNode.Text
GetXMLNodeValue = ret
End Function
Function GetMetarAviationWeather(address, variableName)
Dim latLng, lat, lng, url, nodePath
latLng = Split(GetLatLngFromAddress(address), ",")
lat = latLng(0)
lng = latLng(1)
url =
"https://www.aviationweather.gov/adds/dataserver_current/httpparam?dataSource=metars&requestType=retrieve&format=xml&r
adialDistance=20;" & lng & "," & lat & "&hoursBeforeNow=3"
nodePath = "data/METAR/" & variableName
GetMetarAviationWeather = GetXMLNodeValue(url, nodePath)
End Function
Dim variableName
variableName = "temp_c"
$w.temp = GetMetarAviationWeather($w.address, variableName)
variableName = "dewpoint_c"
$w.dp = GetMetarAviationWeather($w.address, variableName)
$w.rh = 100 - 5*($w.temp - $w.dp)

5. THANK YOU!