Weather station

Davis Vantage Pro2 Plus

The Halethorpe Weather-Watch webpage is updated from recent data collected by a Davis Instruments Vantage Pro2 Plus weather station. Additional data is collected by a LabJack model U12, data acquisition and control device, with analog output temperature sensors. The weather data is processed, weather maps and metars downloaded, files organized and uploaded - all by Weather Display software.

39.24 N

76.7 W

86 ft
The weather station is located at 76°41'49.47" West & 39°14' 12.03" North at an altitude of 86 feet above sea level. Halethorpe, Maryland, postal zipcode 21227, is in Baltimore County. Located southwest of Baltimore City, near the intersection of I-95 and I-195.
In operation since: Aug 13, 2003 (5095 days)
Console - AC power adapter output 5VDC, 900ma with 3xC batteries. Sensors - solar panel with 1x3V Lithium battery. FARS - solar panel with 2xC batteries
2560 records at 1 minute interval ~ 42.5 hrs
Data from all sensors is updated to console every 2.5s
The weather station equipment is running on dedicate emachines model ET1331-40e computer. The computer has an AMD AthlonIIx2 220 dual core processor @ 2.80Ghz, 4GB DDR2 RAM, and 500GB HD, running on Windows7 64-bit operating system. Backup power provided by CyberPower 1350VA UPS.
Weather data is uploaded by the Comcast Arris TG862 modem. Xfinity speed test shows a download rate at 237.9 mbps and upload rate at 11.9 mbps. Website hosted by MDDHosting on a shared server which provides 1 CPU core, 1 GB RAM, 20 entry processes, 100 processes, 10 megabytes/sec disk I/O, 25 concurrent MySQL connections, 250,000 inodes (files/folders).
Meteotemplate -
Two D-Link model DCS-930L wireless cameras and hosting a BloomSky wireless camera
https://www.halethorpeweather.com/wx11.php




The indoor thermometer is part of the indoor console.
Range: 32 to 140°F
Resolution: 0.1°F
Accuracy: +/- 1°F
The indoor humidity sensor is part of the indoor console.
Range: 10% - 90%
Resolution: 1%
Accuracy: +/- 5%
Sensiron SHT31 temperature/humidity sensor in Davis 24-hour fan aspirated radiation shield.
Range: - 40 to + 150°F
Resolution: 0.1°F
Accuracy : +/- 0.5°F across entire range
Sensiron SHT31 temperature/humidity sensor in 24-hour fan aspirated radiation shield.
Range: 0 to 100%
Resolution: 1 %
Accuracy : +/- 2% across entire range
The pressure sensor is part of the indoor console
Range: 26 to 32"Hg
Resolution: 0.01" Hg
Accuracy : +/- 0.03" Hg at sea level
Davis Vantage Pro2 anemometer mounted at 26 ft above the ground.
Range: 2 to 150 mph
Resolution: 1 mph
Accuracy: +/- greater of 3 mph or 5%
Davis Vantage Pro2 anemometer mounted at 26 ft above the ground.
Range: 0 to 360°
Resolution: 1°
Accuracy: +/- 7°
Davis Vantage Pro2 rain collector with 0.01" tipping
Range: 0 to 99.99"
Resolution: 0.01"
Accuracy: +/- greater of 4% or 1 tip
Davis Vantage 2 Pro
Range: 0 to 1800 W/m²
Resolution: 1 W/m²
Accuracy: +/- 5% of full scale
Davis Vantage 2 Pro
Range: 0 to 16 index
Resolution: 0.1 index
Accuracy: +/- 5% of full scale
Hobby Boards 1-wire lightning counter
Range: 0 to 300 strikes per min
Resolution: 1 strike
Accuracy : unknown

Hosting: NAPLN™ lightning sensor
Equipment: TOA Precision Lightning Sensor™ model LPS-200
Range: Monitoring 10Km radius
LabJack U12 with LM335 temperature sensor buried 4" (10cm) below ground.
Range: -40 to 140°F
Resolution: 0.1°F
Accuracy : +/- 2°F
LabJack U12 with LM335 temperature sensor suspended at 4" (10cm) above the ground.
Range: -40 to 140°F
Resolution: 0.1°F
Accuracy : +/- 2°F


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