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Barometric Pressure Graph
Madis Value:	100%
Data Span:	7 Days
Average Barometer Error:	0.1 milliBars
Error Standard Deviation:	0.3 milliBars
Calculations/Data Courtesy of: Phillip Gladstone.

Temperature Graph
Madis Value:	100%
Data Span: 7 Days	24 Hours	Daytime	Nighttime
Average Temp. Error:	-0.6 °F	-0.1 °F	-0.4 °F
Error Standard Deviation:	1.7 °F	0.5 °F	1.6 °F
Calculations/Data Courtesy of: Phillip Gladstone.

Dewpoint Graph
Madis Value:	97%
Data Span: 7 Days	24 Hours	Daytime	Nighttime
Average Dew Point Error:	-0.4 °F	-0.1 °F	0.1 °F
Error Standard Deviation:	3.5 °F	0.7 °F	3.3 °F
Calculations/Data Courtesy of: Phillip Gladstone.

Relative Humidity Graph
Madis Value:	%  QC not available for Relative Humidity - For Data Purposes Only
Data Span: 7 Days	24 Hours
Average Humidity Error:
Error Standard Deviation:
Calculations/Data Courtesy of: Phillip Gladstone.

Wind Speed & Direction Graph
Madis Value:	64%
Today: 21 Dec 2024 Previous 7 Days: 14 Dec 2024 - 21 Dec 2024 Calculations/Data Courtesy of: Phillip Gladstone.

K3JAE's Weather Station (CWOP ID: AT066) is a proud member of the Citizen Weather Observer Program (CWOP). The above charts represent data reported to CWOP for Bruceton, TN (AT066 actuals in blue) with the predicted data based on surrounding stations (AT066 Comparative Analysis in red).

Data Quality:
The MADIS value represents the percentage of observations that have successfully passed the MADIS QC checks. If the Madis rating is within the acceptable limits, a green check will appear. Otherwise, a red x-mark will appear indicating that the data has not passed quality control.

Data Verification:
The data from this site is compared to other MADIS (Meteorological Assimilation Data Ingest System) stations, known only by MADIS, and verified through NWS and non-NWS data reporting stations. All data then is extrapolated and compared for accuracy. The data for each individual station is then graded and given a QC score (as explained above with the red X-mark or green check mark) as to it's accuracy. By clicking on the verification link below you can see other stations within proximity of each station to check for similar numbers. It is very important to understand that the stations shown are NOT the comparative stations used to verify the accuracy of each individual reporting station's data. Each station is individually verified by MADIS.

Errors:
If the above errors are POSITIVE, this means that the analysis variable is HIGHER than the reported variable. This means that the sensor is reading a variable lower than expected. If the above errors are NEGATIVE, this means that the analysis variable is LOWER than the reported variable. This means that the sensor is reading a variable higher than expected.

CWOP:
The Citizen Weather Observer Program (CWOP) is a private-public partnership with the National Oceanic & Atmospheric Administration (NOAA). Its three main goals are:

1. to collect weather data contributed by citizens;
2. to make that data available for any weather service interested in same; and
3. to provide feedback to the data contributors so that they have the tools to check and improve their data quality.

To verify the accuracy of this page feel free to verify the information sent to CWOP by clicking on the Quality Control Verification link.

Many thanks go to Phillip Gladstone at CWOP for his dedication to providing the needed accuracy and quality checks for the amateur weather observer.