script variables
method used to obtain METAR string              $phetar['meth']
time to complete parsing                        $phetar['codetime']

station variables
METAR station ICAO code                         $phetar['station']
time that METAR string was produced (UTC, 24h)  $phetar['time']
station name                                    $phetar['name']
state (US only)                                 $phetar['state']
country where station is located                $phetar['country']
latitude in DD-MM-(SS)?[N|S]                    $phetar['latitude']
longitude in DDD-MM-(SS)?[E|W]                  $phetar['longitude']
elevation (m)                                   $phetar['elevation']
raw METAR string                                $phetar['rawdata']

wind variables
wind direrction [N|NW|W|SW|S|SE|E|NE|Calm]      $phetar['windcompass']
wind speed (MPH)                                $phetar['windspeed']
wind gust speed (MPH)                           $phetar['windgust']

weather condition variables
text description of conditions                  $phetar['conditions']
WMO code for amount of sky covered by cloud     $phetar['cloudcode']
text description of sky cover                   $phetar['skycond']
visibility in miles                             $phetar['visibility']
ceiling in feet                                 $phetar['ceiling']
WMO code for each weather type                  $phetar['wxcode'][[0-9]+]['full']
WMO code for each weather intensity             $phetar['wxcode'][[0-9]+]['intensity']
WMO code for each weather modifier              $phetar['wxcode'][[0-9]+)-1]['modifier']
WMO code for each weather phenomenon            $phetar['wxcode'][[0-9]+]['phenomenon']
number corresponding to intercept vector icon   $phetar['wid']

temperature variables
temperature in celcius                          $phetar['tempc']
temperature in fahrenheit                       $phetar['tempf']
windchill in celcius                            $phetar['windchillc']
windchill in fahrenheit                         $phetar['windchillf']
heat index in celcius (US)                      $phetar['heatindexc']
heat index in fahrenheit (US)                   $phetar['heatindexf']
humidex in celcius (Canada)                     $phetar['humidexc']
humidex in fahrenheit (Canada)                  $phetar['humidexf']

humidity variables
dew point in celcius                            $phetar['dewc']
dew point in fahrenheit                         $phetar['dewf']
percent relative humidity                       $phetar['relhumidity']

pressure variables
pressure in millibars                            $phetar['pressure']
pressure in inches of mercury                    $phetar['inhg']