AGS Field Weather
The weather data and forecast images (.jpg & .png) presented on this page are obtained from the National Weather Service (NWS) through it's XML services described here:
The XML data is obtained and presented by the AGS and used in accordance with:
This does not constitute an endorsement by the NWS of any information, products or services by the content provider. The NWS does not own or operate this site and is not responsible for site maintenance or data accuracy. Use this data at your own risk.
Sunrise and sunset azimuth angles are calculated based on the approximation equations by Professor Richard B Goldstein (retired) Providence College Math Department*.
Sunrise and sunset times and hourly azimuth angles are calculated based on the equations by C.B.Honsberg and S.G.Bowden, "Photovoltaics Education Website", www.pveducation.org, 2019. The following links are provided for reference*:
A wind barb is a graphical representation of wind speed and direction. The wind barbs on this page use miles per hour (mph) instead of knots (kt). A short barb represents 5 mph, a long barb 10 mph, a penant represents 50 mph. No Wind conditions are represented with just a reference circle. Wind speeds of greater than 0 mph and less than 2 mph are indicated by a reference circle and a staff. Wind direction is a 36 point compass (10° per point, north: 0°, east: 90°, south: 180°, west: 270°). Wind is always blowing "from" the barbs toward the reference circle.
Here is an example of a wind barb representing a 195 mph wind blowing from the WNW (300°)
3 penants * 50 mph/penant = 150 mph 4 long barbs * 10 mph/long barb = 40 mph 1 short barb * 5 mph/short barb = 5 mph total = 195 mph
An azimuth is the angle from north (compass bearing) that an observer must turn to find a celestial body in the sky. The observer then looks above the horizon the celestial body's elevation angle to find the object in the sky. For simplicity only the sun's azimuth angle is graphed to determine when the sun will be positioned behind the pilot's back.
XML Feed Files
The National Weather Service updates the databases used on this site on an an hourly basis at approximately 50 minutes past the hour. The files are cached locally on the site in accodance with the National Weather Service policy for data usage. Refreshing this page constantly will not get you the lastest forecast data or fresh data until it is available.
Current Weather Conditions and Foreasts
63.0 F (17.2 C)
- Humidity 73 %
- Wind South at 8.1 MPH (7 KT)
- Wind Gust 14 MPH (12 KT)
- Barometer 29.85 in. (1010.8 mb)
- Dew Point 54.0 F (12.2 C)
- Visiblility 10.00 miles
- CloudCover 39 %
- Last Updated on Oct 25 2021, 11:53 am EDT
Chance Showers then Mostly Sunny
- This Afternoon
- Mostly sunny, with a high near 68. South wind around 7 mph.
- A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 1am, then rain and possibly a thunderstorm after 1am. Low around 51. East wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
- Rain. High near 55. Northeast wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
- Tuesday Night
- Showers likely, mainly before 2am. Cloudy, with a low around 46. North wind 8 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
- A chance of showers before 8am. Partly sunny, with a high near 58. North wind around 9 mph. Chance of precipitation is 30%.
- Wednesday Night
- Partly cloudy, with a low around 39.