Correction , I have weewx set at 70ft elevation to try and match another weather station, sorry about that.
On Wednesday, August 20, 2025 at 6:50:00 PM UTC-4 kufuu wrote: > Im about 15 miles away > > On Wednesday, August 20, 2025 at 6:47:42 PM UTC-4 kufuu wrote: > >> My actual elevation is 1865ft , weewx is set to 0 >> >> Using configuration file /etc/weewx/weewx.conf >> REC: 2025-08-20 18:35:00 EDT (1755729300) 'altimeter': >> '29.856197863702114', 'appTemp': '84.16620032955495', 'barometer': >> '29.850973617639387', 'cloudbase': '1750.7310847902036', 'dateTime': >> '1755729300', 'dewpoint': '69.42478322692313', 'ET': 'None', 'heatindex': >> '77.86800000000002', 'humidex': '91.66911741879971', 'inDewpoint': >> '56.232061622715676', 'inHumidity': '56', 'inTemp': '72.86000000000001', >> 'interval': '5', 'maxSolarRad': '192.36417227192797', 'outHumidity': '78', >> 'outTemp': '76.82000000000002', 'pressure': '29.778039395', 'rain': '0.0', >> 'rainRate': '0.0', 'usUnits': '1', 'windchill': '76.82000000000002', >> 'windDir': 'None', 'windGust': '0.0', 'windGustDir': 'None', 'windrun': >> '0.0', 'windSpeed': '0.0' >> >> LOOP: 2025-08-20 18:35:44 EDT (1755729344) 'altimeter': >> '29.856197863702114', 'appTemp': '84.16620032955495', 'barometer': >> '29.850973617639387', 'cloudbase': '1750.7310847902036', 'dateTime': >> '1755729344', 'dewpoint': '69.42478322692313', 'ET': 'None', 'heatindex': >> '77.86800000000002', 'humidex': '91.66911741879971', 'inDewpoint': >> '56.232061622715676', 'inHumidity': '56', 'inTemp': '72.86000000000001', >> 'inTempBatteryStatus': '0', 'maxSolarRad': '189.6877965534115', >> 'outHumidity': '78', 'outTemp': '76.82000000000002', >> 'outTempBatteryStatus': '0', 'pressure': '29.778039395', 'rain': 'None', >> 'rainBatteryStatus': '0', 'rainRate': '0.0', 'rxCheckPercent': '100', >> 'usUnits': '1', 'windBatteryStatus': '0', 'windchill': '76.82000000000002', >> 'windDir': 'None', 'windGust': '0.0', 'windGustDir': 'None', 'windrun': >> 'None', 'windSpeed': '0.0' >> >> KPSK dublin VA >> >> >> *Current conditions at* Dublin / New River Valley (KPSK) *Lat: *37.13°N >> *Lon: *80.68°W*Elev: *2106ft. >> >> Mostly Cloudy >> >> 76°F >> >> 24°C >> >> *Humidity* >> 76% >> *Wind Speed* >> E 7 mph >> *Barometer* >> 29.95 in >> *Dewpoint* >> 68°F (20°C) >> *Visibility* >> 10.00 mi >> *Heat Index* >> 77°F (25°C) >> *Last update* >> 20 Aug 6:35 pm EDT >> >> *More Information:* >> >> Local Forecast Office <https://www.weather.gov/rnk>More Local Wx >> <http://forecast.weather.gov/obslocal.php?warnzone=VAZ013&local_place=2%20Miles%20N%20Dublin%20VA&zoneid=EDT&offset=14400>3 >> >> Day History <http://forecast.weather.gov/data/obhistory/KPSK.html>Hourly >> Weather >> Forecast >> <https://forecast.weather.gov/MapClick.php?lat=37.1333&lon=-80.6833&unit=0&lg=english&FcstType=graphical> >> >> >> >> On Wednesday, August 20, 2025 at 6:00:53 PM UTC-4 [email protected] >> wrote: >> >>> The three pressures on your LOOP was "altimeter", "barometer" and >>> "pressure". >>> If you set station altitude = 0 then you are telling your weather >>> station's barometer that it is located at sea level. >>> Therefore all three pressures shouldl read the same. >>> >>> "pressure" is just your local atmospheric pressure at your location's >>> altitude.. >>> "altimeter" is a sea level pressure that factors in your altitude above >>> sea level and "corrects" your local pressure (station pressure) and >>> calculates an equivalent pressure at sea level. >>> "barometer" is also a sea level pressure except it factors in your >>> station pressure "(pressure" in WeeWX) , local temperature and humidity >>> and "corrects" it to an equivalent pressure at sea level. >>> >>> I took a quick look at your weather station's manual and it appears that >>> your display console reads "relative pressure" only. So in your case if you >>> set station altitude = 0 in WeeWX, WeeWX's SLP correction will calculate a >>> correction = 0. It makes sense because you told WeeWX you are located at >>> sea level so there is no need to correct your "pressure" to sea level - you >>> are already at sea level! Therefore "pressure" = "barometer" at sea level ( >>> altitude = 0). >>> >>> I am not familiar with LaCrosse barometer operations- but I'll try to >>> help. Other LaCrosse owners can certainly jump in... >>> >>> Things to check. >>> >>> 1. What have you entered as your station altitude in WeeWX? Did you >>> ensure that the station altitude you entered in WeeWX is the altitude of >>> the barometric sensor (total height above sea level?) How did you calculate >>> your station altitude? >>> >>> 2. Your weather station manual makes no mention of sea level pressure >>> calculations, entering an altitude or elevation in your display console.or >>> using an offset. The manual implies that the console only displays relative >>> pressure? Can you confirm that? >>> >>> 3. How close are you to an official weather station at an airport? Can >>> you provide the ICAO code for it? Or the name of the airport? >>> >>> 4. Your July 31 LOOP altimeter and barometer readings appear to be >>> unseasonably high for typical summertime weather. >>> >>> 5. WeeWX is calculating altimeter correctly but WeeWX barometer seems >>> high compared to the Starpath online SLP calculator using the same input >>> parameters. WeeWX "barometer" should be close to be the same or less than >>> "altimeter" at the temperatures you reported. >>> >>> 6. Does your weather station use PC software from the manufacturer? If >>> so, what is it reporting currently for absolute pressure and relative >>> pressure? Can you adjust your absolute pressure? >>> >>> 7. Can you do another LOOP and give us the three pressures (altimeter, >>> barometer, and pressure)? >>> >>> At the same time you do a LOOP ,can you obtain the altimeter setting of >>> a close-by airport. And finally, can you obtain the elevation of that >>> airport. >>> >>> Summing up, we need: your station altitude, your weather station's >>> absolute pressure, relative pressure and the current WeeWX LOOP pressure >>> values (altimeter, barometer, and pressure) and the LOOP outside >>> temperature. In order to make some pressure comparisons and accuracy >>> checks. We would also need , the name(s) of any close-by airport(s) and how >>> close you are to these airports. lus we need the airport altimeter setting >>> reading and elevation. As Tom mentioned in the wiki, you have to be careful >>> about comparing your relative pressure on your display console with the >>> WeeWX "barometer" calculation. They could be two different things. >>> >>> Michael's advice is I think, correct. You probably need to re-calibrate >>> or at least verify if your station pressure/absolute value is accurate. >>> >>> On Wednesday, August 20, 2025 at 1:33:38 AM UTC+4 [email protected] >>> wrote: >>> >>>> >>>> Which obs_type "reads what is on the display", when altitude is set to >>>> 0? pressure, altimeter or barometer or all three? (It should be all three) >>>> When setting your altitude, pressure should always "read what is on the >>>> display", altimeter and barometer will change with the altitude you >>>> configure. >>>> >>>> You should calibrate your station to the real pressure provided by a >>>> reliable station near you, which is located at the same altitude. Then >>>> configure the altitude of the station in weewx, then choose the obs_types >>>> you want to have displayed in your report. Depending on what you choose, >>>> the may or may not "read what is on the display", which is perfectly fine >>>> for altimeter and barometer. >>>> kufuu schrieb am Dienstag, 19. August 2025 um 21:09:21 UTC+2: >>>> >>>>> If I put 0 altitude in weewx config then it reads what is on the >>>>> display, is there any way to correct or just leave it 0 ? >>>>> >>>>> On Thursday, July 31, 2025 at 9:29:40 AM UTC-4 kufuu wrote: >>>>> >>>>>> It can wait till then and good luck, >>>>>> >>>>>> On Thursday, July 31, 2025 at 9:06:30 AM UTC-4 kufuu wrote: >>>>>> >>>>>>> Let me redo this and put the dates in order, >>>>>>> LOOP: 2025-07-31 08:45:20 EDT (1753965920) 'altimeter': >>>>>>> '31.994965595814566', 'appTemp': '82.83203424777768', 'barometer': >>>>>>> '31.942483641883886', 'cloudbase': '2805.6732703464695', 'dateTime': >>>>>>> '1753965920', 'dewpoint': '70.70103761047554', 'ET': 'None', >>>>>>> 'heatindex': >>>>>>> '76.113', 'humidex': '90.81599237942409', 'inDewpoint': >>>>>>> '55.52280883736111', 'inHumidity': '58', 'inTemp': '71.06', >>>>>>> 'inTempBatteryStatus': '0', 'maxSolarRad': '357.687499228319', >>>>>>> 'outHumidity': '87', 'outTemp': '74.84', 'outTempBatteryStatus': '0', >>>>>>> 'pressure': '29.919783335', 'rain': '0.0', 'rainBatteryStatus': '0', >>>>>>> 'rainRate': '0.0', 'rxCheckPercent': '100', 'usUnits': '1', >>>>>>> 'windBatteryStatus': '0', 'windchill': '74.84', 'windDir': 'None', >>>>>>> 'windGust': '0.0', 'windGustDir': 'None', 'windrun': 'None', >>>>>>> 'windSpeed': >>>>>>> '0.0' >>>>>>> REC: 2025-07-31 08:45:00 EDT (1753965900) 'altimeter': >>>>>>> '31.994965595814566', 'appTemp': '82.83203424777768', 'barometer': >>>>>>> '31.942483641883886', 'cloudbase': '2805.6732703464695', 'dateTime': >>>>>>> '1753965900', 'dewpoint': '70.70103761047554', 'ET': 'None', >>>>>>> 'heatindex': >>>>>>> '76.113', 'humidex': '90.81599237942409', 'inDewpoint': >>>>>>> '55.52280883736111', 'inHumidity': '58.0', 'inTemp': '71.06', >>>>>>> 'inTempBatteryStatus': '0.0', 'interval': '5.0', 'maxSolarRad': >>>>>>> '351.7781598061274', 'outHumidity': '87.0', 'outTemp': '74.84', >>>>>>> 'outTempBatteryStatus': '0.0', 'pressure': '29.919783335', 'rain': >>>>>>> '0.0', >>>>>>> 'rainBatteryStatus': '0.0', 'rainRate': '0.0', 'rxCheckPercent': >>>>>>> '97.5', >>>>>>> 'usUnits': '1', 'windBatteryStatus': '0.0', 'windchill': '74.84', >>>>>>> 'windDir': 'None', 'windGust': '0.0', 'windGustDir': 'None', 'windrun': >>>>>>> '0.0', 'windSpeed': '0.0' >>>>>>> Traceback (most recent call last): >>>>>>> File "/usr/share/weewx/weewx/reportengine.py", line 248, in run >>>>>>> obj.start() >>>>>>> File "/usr/share/weewx/weewx/reportengine.py", line 465, in start >>>>>>> self.run() >>>>>>> File "/usr/share/weewx/weewx/reportengine.py", line 621, in run >>>>>>> ncopy += weeutil.weeutil.deep_copy_path(path, html_dest_dir) >>>>>>> File "/usr/share/weewx/weeutil/weeutil.py", line 1811, in >>>>>>> deep_copy_path >>>>>>> shutil.copy(path, d) >>>>>>> File "/usr/lib/python3.9/shutil.py", line 418, in copy >>>>>>> copyfile(src, dst, follow_symlinks=follow_symlinks) >>>>>>> File "/usr/lib/python3.9/shutil.py", line 264, in copyfile >>>>>>> with open(src, 'rb') as fsrc, open(dst, 'wb') as fdst: >>>>>>> PermissionError: [Errno 13] Permission denied: >>>>>>> '/var/www/html/weewx/seasons.css' >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- You received this message because you are subscribed to the Google Groups "weewx-user" group. 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