NH Weather Data uses a Davis Vantage Pro 1 Plus weather
station (cabled) which is mounted on a tripod with a 10 foot mast on the roof of
the building, putting the Anemometer apporx 40 feet in the air.
The Integrated Sensor Suite (ISS) sits 4 feet above the roof. We mounted the ISS/Anemometer in this location to avoid obstructions that would effect
our wind readings. The ISS also includes a rain gauge bucket heater to measure the moisture content of
snow fall and freezing rain we receive here, November through April (sometimes
earlier/later). It also has several additional sensors to measure the Ultraviolet
Index (UVI)
and Solar Radiation, in addition to the normal Temperature, Barometer and Humidity sensors. We use Virtual Weather Station software by Ambient to
process all of the data retrieved from the station, format it and prepare it for
uploading to our web server. The software also creates several different maps that
we use online, including our NH Mesonet map. It also tracks and downloads
airport Metar data from the National Weather Service and places that online. It
does quite a bit more, but I won't bore you with those details. We also use
WeatherFlash software to display real time weather data online, using
Macromedia flash technology. This information is presented using virtual gauges
and is updated every 5 seconds.
The Boltek Lightning Detection System (LDS) antenna
is mounted on the outside of the building, inside a custom made 9" long PVC tube
enclosure. This enclosure sits on top of a 10 foot PVC mast, which gets the
antenna approx 35 feet in the air, well above the roof line. The heart of the
detector system is the StormTracker PCI card installed in the computer. It processes the data
received from the antenna and determines the distance and direction of each
lightning strike. We then process the information using NexStorm software by
Astrogenic Systems. This software plots the lightning strikes on the map,
archives the data and sends the current data to the web server. The results are
what you see online, live lightning strike data, in just about real time. The
LDS is quite accurate within a 375 mile range, but will also detect lightning
strikes a lot further away then that. We've already tracked thunderstorms this
season well over 700 miles away, with dead on accuracy. We are still in the
process of getting this system calibrated and fine tuned, so expect better
things to come. Our station also transmits our lightning data to the StrikeStar
Lightning Detection Network. This network gathers lightning data from different
sensors around the country, analyzes the data for accuracy and plots the strikes
on a map of the United States. NH Weather Data is proud to be a part of this
project. We also offer lightning data on your cell phone/mobile device through
the Spark CLX interface. The computer the LDS is run on is a custom built 933 MHz Pentium 3 with
256K of ram, 40 GB hard drive, CD-RW burner and 4 USB ports.
The computer used to process all of our weather
data is a custom built 3.8GHz Pentium 4 dual processor with 1024 megs of ddr ram,
160GB hard drive, GeForce 5200 video, DVD/CD-RW burner and 8 USB ports.
All computers are
tied into a 100Mb ethernet network which consists of LinkSys routers & hubs
and a Motorola SB5100 cable modem. The
cable modem provides 24 hours real time connection to our web server to keep the
web site updated with current weather data, real time weather warnings and
dozens of other tasks. There are 5 other computers on the network
which are used to process other information vital to keeping the data flowing to
the web server. All computers, network equipment and weather equipment are
backed up with extended run UPS's and emergency generator power. This allows us
to keep things up and running, when everyone else is in the dark.
Our streaming WeatherCam #1 is a small bullet cam
from SuperCircuits and is mounted to view the Ammonoosuc River. WeatherCam #2 is
a Toshiba IK-WB21A, which has pan, tilt and 22x zoom functions. It is mounted in
a heated outdoor enclosure. Users can move the camera to view different areas.
Cam #1 images and
streaming video are processed through the ImageSalsa software, which overlays
the current weather data in real time and pipes it to the web server for your
viewing pleasure. MovieSalsa is used to make our daily weather video (Cam
#1) which
can be viewed online. ImageSalsa is also used to create our weather stickers,
that are available for you to place on your web site. Streaming video & PTZ
functions of the Toshiba camera is handled by webcamXP.
If you are interested in any of the software we
use on our site, you can purchase it through our web site. We offer many of the
software packages used here through various Affiliate Programs. If you purchase your
software through our site, we get a commission on each sale. This helps support
NH Weather Data, so it is a win-win situation for everyone!