anchor.diff:                  "precipitationAmountInInch": 0.02,
   				"freshSnowfallInCentimeter": 1,
   				"freshSnowfallInInch": 0.394,
  -				"pressureTendency": "STEADY",
  +				"pressureTendencyDescription": "STEADY",
                   "pressureTendencyCode": 4
                 },
                 {
  
positive.code:                 "observedUntil": "2016-10-15T08:00:00Z",
                  "observedPeriod": "PT3H",
                  "pressureChangeInHectoPascal": 2,
                  "pressureTendency": "INCREASING_THEN_STEADY",
                  "pressureTendencyCode": 1,
                  "precipitationAmountInMillimeter": 1.2,
                  "precipitationAmountInInch": 0.047
  
negative.code:                 "observedUntil": "2016-10-15T08:00:00Z",
                  "observedPeriod": "PT3H",
                  "pressureChangeInHectoPascal": 2.0,
                  "pressureTendencyDescription": "INCREASING_THEN_STEADY",
                  "pressureTendencyCode": 1,
                  "precipitationAmountInMillimeter": 1.2,
                  "precipitationAmountInInch": 0.047
  