Current Dewpoint Contour Plot http://weather.unisys.com/surface/sfc_con_dewp.html
My name is Tom Watson. I found this site with images showing amazing perspectives of the current weather.
For the images below provided by http://weather.unisys.com/ there are explanations at.
http://weather.unisys.com/surface/details.html
http://weather.unisys.com/satellite/details.html
|
Current Dewpoint Contour Plot http://weather.unisys.com/surface/sfc_con_dewp.html
| Contour plot of the dewpoint temperature (F) for the contiguous US. The dewpoint temperature indicates the amount of moisture (or humidity) in the atmosphere. The amount of moisture in the atmosphere can affect how you feel and is used in the heat index computation (see above). Dewpoints above 65 reflect humid conditions. Summer dewpoints can reach the low 80s. Dewpoints above 50 mean that there is enough moisture in the atmosphere to generate thunderstorms. The higher the dewpoint, the easier storms form and the more potent they can become. An additional factor of low level wind convergence is also needed to help storms form (see below). Intense storms can form at dewpoints of 55 if the right conditions are in place including high convergence values. |
|
Water Vapor Satellite Image http://weather.unisys.com/satellite/sat_wv_us.html
| The water vapor image show an infrared band which is affected strongly by the presence of water vapor. Essentially, the image shows the altitude of the highest moist layer in the atmosphere. Bright areas reflect the location of high clouds either due to jet stream cloudiness or due to thunderstorm activity. The dark areas reflect the location of dry are at high altitudes. This is associated with dry air intrusion and sinking motion associated with high pressure systems. This image is a decent tracer of jet stream winds which will show up as bright streaks. |
|
Enhanced Infrared Satellite Image http://weather.unisys.com/satellite/sat_ir_enh_us.html
| This is an infrared image enhanced to highlight the cloud areas and the coldest cloud tops. Since, IR images could be used to determine cloud height, these images are enhanced to highlight the highest, coldest cloud tops. Areas of strong precipitation will show up as shades of cyan. Thunderstorms will show up in blue and green. In addition, the contrast of warmer clouds is increased so that low clouds will show up. A color bar at the bottom of the image will describe the enhancement scheme. The tick marks at the top of the bar represent 10 degree Celsius increments starting at 50C on the left and going to -110C on the right. |
|
Current Temperature Contour Plot http://weather.unisys.com/surface/sfc_con_temp.html
| Contour plot of temperatures (F) for the contiguous US. |
|
Current Sea Level Pressure Contour Plot http://weather.unisys.com/surface/sfc_con_pres.html
| Contour plot of sea level pressure (mb) for the contiguous US. The maximum and minimum values reflect the location of high and low pressure systems. |
