PWSmet Introduction

By: Kari Strenfel , 10:27 PM GMT on January 30, 2014

Hi PWS owners! I am Kari Strenfel, a meteorologist here at Weather Underground. I am starting a new blog where PWS owners in our community can go to discuss and share weather station pros and cons, sensor upgrades, maintenance and calibration techniques, and error/troubleshooting issues that may come up. I will try to post once a week or so with new issues or problems that may arise for our PWS owners. For those of you who aren't familiar with the Weather Underground PWS network, it is a network of weather stations that have been installed by our users at their homes, schools, universities, museums, etc. Some people have only one station, while others have multiple stations. They upload their data to Weather Underground and have access to all of their historical data (for free!). Since we here at Weather Underground love data, the more data the better! The more data we get, the better our forecast model becomes and we can create fine-scale forecasts to your location. Forecasts specific to your weather station (again for free!). Another benefit of joining our PWS network is being able to access your current and historical weather data on any mobile device, tablet, or desktop computer. Your data is also available on our weather apps.

Please send me any questions you may have on weather stations or joining our PWS network! In the meantime, here are some links for some more info :)

http://www.wunderground.com/weatherstation/about. asp

Have a weather station but not yet uploading to wunderground? Register your station here:
http://www.wunderground.com/personal-weather-stat ion/signup


The views of the author are his/her own and do not necessarily represent the position of The Weather Company or its parent, IBM.

Reader Comments

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32. ced100
9:29 PM GMT on December 30, 2016
I can see my PWS info on my desktop and through my smartwatch via WU. Why does the WU site say the PWS in not reporting? Thanks for your help.
Member Since: December 31, 1969 Posts: Comments:
31. crambazzle
1:23 PM GMT on December 16, 2016
Hi.

How long does it take for the Netatmo station to appear on your map?

Its almost too weeks since I set the station up.

Many thanks.
Member Since: December 31, 1969 Posts: Comments:
30. tstoke
2:38 PM GMT on November 26, 2016
Hello, I recently purchased the Ambient Weather WS-1001-WiFi Observer. I registered with WU and entered the station ID (KSCGREEN120) and password generated from WU and the station is not reporting....going on 24 hours now. Some confusion over which password I should use. Do I enter the assigned Station Key/Password from WU or the password I use for login to the website? Any other suggestions would be greatly appreciated.
Member Since: December 31, 1969 Posts: Comments:
29. giuali
9:57 AM GMT on September 16, 2015
My data isn't yet available in Weather Underground. How do you go about requesting that a Netatmo station be added? Please advise.
ID: ILAZIORO99
email: ga1944@me.com
Member Since: December 31, 1969 Posts: Comments:
28. Guvs
1:34 AM GMT on August 21, 2015
Hi Kari,

Just need to register my Netatmo to my account. The station number is IVICTORI799. Can you do that or is there anything I need to do?

Thanks,

Jim
Member Since: December 31, 1969 Posts: Comments:
27. georgegalbin
6:34 PM GMT on June 07, 2015
Hello,I am interested to monitor the system voltages at our remote weather stations. They are powered by solar panels and sometimes we get days of rain when the solar panel is not charging. One of these stations is Ambient Weather 1400IP. Maybe I could give up to the indoor temperature and convert it into voltage measurement?? Any suggestions?
Member Since: December 31, 1969 Posts: Comments:
26. cadlackey
2:50 AM GMT on May 30, 2015
Hows the Ambient Weather station holding up? Did you have to calibrate anything or adjust some offsets? I just bought this same system to replace my Acurite 2032C
Member Since: December 31, 1969 Posts: Comments:
25. Cloudyinthewest
1:53 AM GMT on May 14, 2015
Hello Kari,

Where may I purchase an anemometer?

Thank you,
Dave
Member Since: December 31, 1969 Posts: Comments:
24. estancialaposta
9:59 PM GMT on February 12, 2015
My PWS (IDEPARTA33) is installed on a ranch and frecuently during storms, internet fails for some minutes. Every fail takes more than 1 day to be able to see my PWS on wunderground. WHY????
Member Since: December 31, 1969 Posts: Comments:
23. ericbooth78
3:08 AM GMT on January 25, 2015
Weather station is not reporting
Member Since: December 31, 1969 Posts: Comments:
22. PML12
10:06 PM GMT on January 10, 2015
I installed a new Ambient Weather WS-1400-IP a few hours ago and registered with WU. But the WU says my station is not reporting. Please advise me on how to troubleshoot this problem. Thanks.
Member Since: December 31, 1969 Posts: Comments:
21. 760volvo
3:48 AM GMT on January 04, 2015
My PWS is reading only 4% humidity and other PWS around me are reading 97% 100% I have a la crosse ws2813uit station with a new thermo-hydro. I have rebooted the unit three times ad move the thermo closer to the console.

Thanks Rchard
Member Since: December 31, 1969 Posts: Comments:
20. scgrout
11:25 PM GMT on January 03, 2015
I purchased, installed and successfully connected an Ambient Weather WS-1001 to the weather underground. The WU web site and iPad app are fantastic. However, I would like to be able to download my weather station data for offline processing. I would like to download this off of WU since it is the only repository of data as data is not stored on the weather station and the weather station does not connect to a PC. The only repository for my weather data seems to be at WU. I do see that I can download from WU summary data for day/month/year. However I would like to download weeks or months worth of my hourly data from my PWS fed to WU. Is this possible?

Thank you,

Scott
Member Since: December 31, 1969 Posts: Comments:
19. Norbakke
7:47 AM GMT on December 14, 2014
I am not recieving rapid-fire update from Gulberwick,SHETLAND ISLANDS. What can I do to solve this?
Member Since: December 31, 1969 Posts: Comments:
18. cfd10
12:59 AM GMT on December 06, 2014
I have recently added a weather cam to my station. It is uploading and the image can be seen except on the dashboard page (www.wunderground.com/personal-weather-station/das hboard?ID=KARCLARK1#history)

What what have I missed?

cfd10
Member Since: December 31, 1969 Posts: Comments:
17. OldinaRidge
6:57 AM GMT on December 05, 2014
TASMANI113 is uploading data, which can be seen in the text file, but all that is showing is a blue circle. Do I have my settings wrong or is there something else I'm missing?
Member Since: December 31, 1969 Posts: Comments:
16. Thextreme
3:07 AM GMT on November 07, 2014
Hi I have added my pws to your site. I can see my pws if I am on your web page, but it is not listed as an option on my Weather Underground Android app. Pws I.D. is KWIWAUPU3.
Member Since: December 31, 1969 Posts: Comments:
15. picmanjoe
10:41 AM GMT on February 12, 2014
Quoting 10. Tmax:
Corrections for everyone to use. This will fix most of your errors.

http://www.ngdc.noaa.gov/geomag-web/#declination

Use the Google map to find your exact GPS

Now for the barometric pressure variance for above sea level stations. This is probably the most important one.

http://taja.dynip.com/baropres.htm

Questions: taja@taja.org

Faster to email me. I have helped hundreds setup their stations.
Quoting 6. Tmax:


Have a computer hooked to it that can handle a lot of information rapidly. Send data as fast as possible, generally with rapid fire its 2 seconds or thereabouts.


Thanks for the barometric pressure correction link. However, I don't understand how that's terribly useful as I assume most weather stations, like mine, correct the absolute barometric pressure read by the sensor to the sea level equivalent (assuming the user has entered correct sensor elevation into the system software) so that the relative difference between stations can be analyzed. So correction for barometric pressure in that sense doesn't seem to be necessary or useful, however I can see correcting the sensor reading to a standard of some sort (regular contract calibration or nearby NOAA weather station readings) would be a good idea. As for the rapidfire data upload, my Davis Vantage Vue doesn't read sensor data at anything faster than 10 sec, depending on the sensor. So for my system it makes little sense to upload data at 2 second intervals as I'll just be uploading the same data four times in a row until the system takes the next reading. Or am I missing something? Also, many folks, including me, can't afford a system, or live in a location, in which all sensors can be properly located for accurate readings. Regular calibration is a good thing, but there are so many variables involved in obtaining accurate readings that your tips will not have much impact on getting NWS to use PWS data in their models.
Member Since: December 31, 1969 Posts: Comments:
14. WunderAlertBot (Admin)
10:27 PM GMT on February 07, 2014
PWSmet has created a new entry.
13. riblet2000
7:29 PM GMT on February 03, 2014
This is all nice, but until WU fixes its display systems it is useless. For at least the last two weeks my local PWS conditions have been posted on the 'front forecast page' as well as on the weather gadget 15 minutes or more (sometimes hours) behind. What I mean is that even though my PWS is reporting as usual every 5 minutes and the data is clearly making it to WU as it is in the table for the station, the rest of your systems seem to be randomly pulling data from earlier in the day. Sometimes a page refresh will cause an even earlier row to be displayed. Ironically, the fullscreen rapidfire display appears to keep up even though my station is not sending rapidfire data, as does the PWS sticker to the right of the current conditions, which will show a different temp, etc.

When are you going to fix this? It has been reported but nobody seems to care. What is the use of all these PWS entries if you aren't going to bother to properly display the data? This happens on classic, 'new' and the beta pages.
Member Since: December 31, 1969 Posts: Comments:
12. Skyepony (Mod)
1:50 PM GMT on February 03, 2014
Local NWS here uses WUnderground PWS in their office. They have gone beyond weeding out just for temps that aren't near the neighbors. They have a little higher standards than here but have nearly all of the local ones I view through here tied into their network they monitor there.
Member Since: December 31, 1969 Posts: Comments:
11. theshepherd
12:50 PM GMT on February 03, 2014
Quoting 9. Tmax:


No, i am not affiliated with The Weather Channel or Wnderground. I have been a PWS operator for years as well as work for NOAA. So i can only tell you what i know and or have heard. Also i can not say 100% that no one uses the information but its mostly other weather watchers, chasers, other organizations like wunderground. However NOAA does not use much if any of the data because of the inaccuracies i spoke of. The data just isn't trustworthy enough. This is what i am being told from down the chain from the NWS. NWS usually uses data collected by the Hamweather Network and spotter organizations but even that is under so much scrutiny that it rarely makes it into a forecast other than to tell you what was observed. The difference between actual and observed is if they include that in the regional forecast and believe me to get that you better be accurate as they are damn picky. I am am atmospheric scientist i study the weather and forecast models. So i can say i want all of your data, give me give me but no matter what i do they aren't going to change things till 30,000 stations get a clue and calibrate calibrate calibrate. One day maybe they will get a clue that the PWS users generally know more than the NWS does. I know i do in my local community and that rubs them raw. I have really yet to see the Weather Channel even use the data provided by the PWS and since they own Wunderground why aren't they. Maybe that's the questions most should be asking.


You should quit while you're ahead.
Member Since: December 31, 1969 Posts: Comments:
10. Tmax
6:40 AM GMT on February 03, 2014
Corrections for everyone to use. This will fix most of your errors.

http://www.ngdc.noaa.gov/geomag-web/#declination

Use the Google map to find your exact GPS

Now for the barometric pressure variance for above sea level stations. This is probably the most important one.

http://taja.dynip.com/baropres.htm

Questions: taja@taja.org

Faster to email me. I have helped hundreds setup their stations.
Member Since: December 31, 1969 Posts: Comments:
9. Tmax
2:20 AM GMT on February 03, 2014
Quoting 8. theshepherd:


Thanks
You have answered all of my questions.


Edit:
Is your answer the official response for PWSmet and the Network?




No, i am not affiliated with The Weather Channel or Wnderground. I have been a PWS operator for years as well as work for NOAA. So i can only tell you what i know and or have heard. Also i can not say 100% that no one uses the information but its mostly other weather watchers, chasers, other organizations like wunderground. However NOAA does not use much if any of the data because of the inaccuracies i spoke of. The data just isn't trustworthy enough. This is what i am being told from down the chain from the NWS. NWS usually uses data collected by the Hamweather Network and spotter organizations but even that is under so much scrutiny that it rarely makes it into a forecast other than to tell you what was observed. The difference between actual and observed is if they include that in the regional forecast and believe me to get that you better be accurate as they are damn picky. I am am atmospheric scientist i study the weather and forecast models. So i can say i want all of your data, give me give me but no matter what i do they aren't going to change things till 30,000 stations get a clue and calibrate calibrate calibrate. One day maybe they will get a clue that the PWS users generally know more than the NWS does. I know i do in my local community and that rubs them raw. I have really yet to see the Weather Channel even use the data provided by the PWS and since they own Wunderground why aren't they. Maybe that's the questions most should be asking.
Member Since: December 31, 1969 Posts: Comments:
8. theshepherd
8:15 PM GMT on February 02, 2014
Quoting 6. Tmax:


Currently NO, due to the massive amount of data and most stations have something improperly setup no one uses the data really. It's not that complicated to set up a PWS and a few simple rules and calculations inside your weather program generally fixes it. I have a friend of mine from MIT set mine every January, and I would like to see all stations as accurately setup however that's a pipe dream as most do this as just a hobby and are not 100% serious about it. The seriousness of this cannot be stressed enough, correct for location on the Anemometer/Wind Direction to North with magnetic declination, adjust barometer for above sea level no matter if your 10ft or 10000ft adjust for it. Make sure your time is done by an atomic clock. Have a computer hooked to it that can handle a lot of information rapidly. Send data as fast as possible, generally with rapid fire its 2 seconds or thereabouts. You can get a general idea of what%u2019s going on around you if there are enough stations in your area though, so you can do your own forecasting model as you use wundermap you can watch the storm as it approaches and see how it affects stations underneath. To remedy the temperature problem use a fan aspirated box. You do not have to place it so high that way. I have been a meteorologist for better than 13 years now and have learned a few things along the way. To be taken seriously we need to get everyone on the same wavelength with accuracy. I detest the NWS for calling us the most inaccurate network on the planet and we got 30,000 while they have about 1400 or so. So not at this time is the answer I can give you. If you need help setting this data give me a buzz I will be happy to direct you to the page that can help you set your station as accurately as possible.


Thanks
You have answered all of my questions.


Edit:
Is your answer the official response for PWSmet and the Network?


Member Since: December 31, 1969 Posts: Comments:
7. KEEPEROFTHEGATE (Mod)
6:53 PM GMT on February 02, 2014
hi kari great blog

I have an old pro weather station still have array that works but the base is gone been trying to located someone that just sells the base for the station but no luck would love to be downloading data again to wu but have had no luck trying to get a replacement even went too tyco but it appears thay no longer have them

thanks for any help

Member Since: December 31, 1969 Posts: Comments:
6. Tmax
2:22 PM GMT on February 02, 2014
Quoting 5. theshepherd:


Do any climate models use WU's collection of data from these private weather stations?


Currently NO, due to the massive amount of data and most stations have something improperly setup no one uses the data really. It's not that complicated to set up a PWS and a few simple rules and calculations inside your weather program generally fixes it. I have a friend of mine from MIT set mine every January, and I would like to see all stations as accurately setup however that's a pipe dream as most do this as just a hobby and are not 100% serious about it. The seriousness of this cannot be stressed enough, correct for location on the Anemometer/Wind Direction to North with magnetic declination, adjust barometer for above sea level no matter if your 10ft or 10000ft adjust for it. Make sure your time is done by an atomic clock. Have a computer hooked to it that can handle a lot of information rapidly. Send data as fast as possible, generally with rapid fire its 2 seconds or thereabouts. You can get a general idea of what’s going on around you if there are enough stations in your area though, so you can do your own forecasting model as you use wundermap you can watch the storm as it approaches and see how it affects stations underneath. To remedy the temperature problem use a fan aspirated box. You do not have to place it so high that way. I have been a meteorologist for better than 13 years now and have learned a few things along the way. To be taken seriously we need to get everyone on the same wavelength with accuracy. I detest the NWS for calling us the most inaccurate network on the planet and we got 30,000 while they have about 1400 or so. So not at this time is the answer I can give you. If you need help setting this data give me a buzz I will be happy to direct you to the page that can help you set your station as accurately as possible.
Member Since: December 31, 1969 Posts: Comments:
5. theshepherd
7:45 PM GMT on February 01, 2014
Quoting 4. PWSmet:


Temperature The most common error in installing a weather station is associated with misplacing the thermometer sensor. Meteorologists define temperature as the temperature is the shade with plenty of ventilation. When placing your weather station, make sure:
-the thermometer sensor never receives direct sunlight
-the thermometer receives plenty of ventilation (it is not blocked from the wind)
-if the thermometer is placed above a roof-top, make sure it is at least 5 feet above the roof-top
-if the thermometer is placed above grass, again, it should be at least 5 feed above the grass surface
-the thermometer is at least 50 feet from the nearest paved surface

Temp sensors come with the standard weather station package. If you need to add additional temp sensors, you can order them from the manufacturer.


Do any climate models use WU's collection of data from these private weather stations?
Member Since: December 31, 1969 Posts: Comments:
4. Kari Strenfel , Meteorologist
5:30 PM GMT on January 31, 2014
Quoting 3. theshepherd:
Kari

I visited the WU weather station site you provided a link to.
WU depends on 30,000 of these type for collecting data?
Is there a separate temp sensor that I did not see?
Have you ever been on your roof in the summer?


What is the proper height above ground for a thermometer?

Do any climate models use your data?

Just asking.



Temperature The most common error in installing a weather station is associated with misplacing the thermometer sensor. Meteorologists define temperature as the temperature is the shade with plenty of ventilation. When placing your weather station, make sure:
-the thermometer sensor never receives direct sunlight
-the thermometer receives plenty of ventilation (it is not blocked from the wind)
-if the thermometer is placed above a roof-top, make sure it is at least 5 feet above the roof-top
-if the thermometer is placed above grass, again, it should be at least 5 feed above the grass surface
-the thermometer is at least 50 feet from the nearest paved surface

Temp sensors come with the standard weather station package. If you need to add additional temp sensors, you can order them from the manufacturer.
Member Since: December 31, 1969 Posts: Comments:
3. theshepherd
1:17 PM GMT on January 31, 2014
Kari

I visited the WU weather station site you provided a link to.
WU depends on 30,000 of these type for collecting data?
Is there a separate temp sensor that I did not see?
Have you ever been on your roof in the summer?


What is the proper height above ground for a thermometer?

Do any climate models use your data?

Just asking.

Member Since: December 31, 1969 Posts: Comments:
2. Tmax
8:55 AM GMT on January 31, 2014
Can't see this making much of a difference but your about to lose thousands of stations if you force the new beta edition on everyone. From tracking and replies and responses 85% give or take a percent or two do not want you to change to the new beta. With a vast majority saying they will shut down their data feeds if you do. Myself included and i have been a member forever. Sorry but you shouldn't mess with whats not broken. Not saying people shouldn't sign up but you need to tell them everything they are signing up for.
Member Since: December 31, 1969 Posts: Comments:
1. whitewabit
10:45 PM GMT on January 30, 2014
Though I don't have a weather station myself .. welcome .. can see this being a great service for those that do ..

Especially when problems occur with they're stations .. others may be able to help that have had the problem before ..
Member Since: December 31, 1969 Posts: Comments:

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