Still no change in BP after deletion of all mqtt components and
reinstalling weewx !!
On Saturday, July 26, 2025 at 11:02:37 AM UTC-4 kufuu wrote:
> Weewx must have picked that up from a previous weather station,
> reinstalling weewx without all the mqtt stuff and it is still
> Outside Temperature 85.9°F
> Heat Index 93.8°F
> Wind Chill 85.9°F
> Dew Point 73.9°F
> Outside Humidity 68%
> Barometer 31.878 inHg ( N/A)
> Wind 0 mph N/A ( N/A)
> Rain Today 0.00 in
> Rain Rate 0.00 in/h
> Inside Temperature 71.6°F
> Inside Humidity 56%
>
> Log
> Jul 26 10:50:02 raspberrypi weewx[554] DEBUG weewx.drivers.ws28xx:
> handleHistoryData: appending history record 1: {'dateTime': 1753541400,
> 'inTemp': 22.0, 'inHumidity': 56, 'outTemp': 29.799999999999997,
> 'outHumidity': 69, 'pressure': 1012.5, 'rain': 0.0, 'windSpeed': 0.0,
> 'windDir': None, 'windGust': 0.0, 'windGustDir': None}
>
> And the console shows 29.90inHg
>
> Will let it run a while to see if anything changes.
>
>
> On Saturday, July 26, 2025 at 6:40:00 AM UTC-4 Tom Keffer wrote:
>
>> You didn't mention that you have an MQTT intermediary.
>>
>> Most likely whatever is receiving the MQTT packets is mapping type
>> "barometer_inHg" to the WeeWX observation type "barometer." They both have
>> roughly the same value.
>>
>> So, either your console is, in fact, reading gauge pressure (not
>> sea-level pressure), which would explain why it's lower, or whatever is
>> generating your MQTT packets is mapping values to the wrong MQTT types.
>>
>> Are you POSITIVE that the console is showing sea-level pressure? Unless
>> the LaCrosse knows something about altitude, it's probably showing gauge
>> pressure (possibly with a correction value).
>>
>> If you are positive, then look at whatever is generating the MQTT
>> packets. It's getting the values wrong.
>>
>> -tk
>>
>>
>> On Friday, July 25, 2025 at 1:45:21 PM UTC-7 [email protected] wrote:
>>
>>> weewx script
>>>
>>> Jul 25 15:55:47 weewx-weather weewx[2911] DEBUG user.mqtt: data:
>>> {'dateTime': '1753473300.0', 'inTemp_F': '73.58000000000001', 'inHumidity':
>>> '54.0', 'outTemp_F': '87.07999999999998', 'outHumidity': '66.0',
>>> 'pressure_inHg': '29.99951430125', 'rain_in': '0.0', 'windSpeed_mph':
>>> '0.44738837038786095', 'windDir': '22.5', 'windGust_mph':
>>> '1.3421651111635826', 'windGustDir': '22.5', 'interval_minute': '5.0',
>>> 'usUnits': '1.0', 'altimeter_inHg': '32.08486850330134', 'appTemp_F':
>>> '96.78463511145246', 'barometer_inHg': '31.986219029757965',
>>> 'cloudbase_foot': '4771.9496637540215', 'dewpoint_F': '74.31142147948229',
>>> 'heatindex_F': '95.85380134124786', 'humidex_F': '106.47314915297711',
>>> 'inDewpoint_F': '55.89516079858936', 'rainRate_inch_per_hour': '0.0',
>>> 'windchill_F': '87.07999999999998', 'windrun_mile': '0.037282364198988414',
>>> 'hourRain_in': '0.0', 'rain24_in': '0.050787401574803145', 'dayRain_in':
>>> '0.04062992125984252'}
>>>
>>>
>>> On Friday, July 25, 2025 at 3:14:59 PM UTC-4 Tom Keffer wrote:
>>>
>>>> See the wiki article on atmospheric pressure
>>>> <https://github.com/weewx/weewx/wiki/Barometer,-pressure,-and-altimeter>.
>>>> It's possible that your station is reporting "gauge" temperature. WeeWX
>>>> reports pressure corrected to sea level.
>>>>
>>>> If you're convinced that you're comparing the same type of pressure,
>>>> then check the entry for altitude.
>>>>
>>>> -tk
>>>>
>>>> On Fri, Jul 25, 2025 at 11:21 AM kufuu <[email protected]> wrote:
>>>>
>>>>> I just purchased an old but never used La Crosse WS2813u-it weather
>>>>> station with weewx 4.10.2 and the Barometric pressure is much higher on
>>>>> weewx than on the console, any thoughts ?
>>>>>
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>>>>>
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>>>>> .
>>>>>
>>>>
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