Monday, 18 March 2013 | Weather
We’re still in the process of getting this page organized — thanks for bearing with us.
One constant is likely to be the graphics that I regularly refer to in the Monday morning (10 AM) and Wednesday evening (6:30 PM) weather reports.
At right is an infra-red / visual image of the upper Midwest. Click to see the animation. It is a live link, updating roughly every 15 minutes, and switches between IR and visual at sunrise and sunset. Once you’ve clicked into it you can set the length of the loop in the upper left and control the replay speed and level of zoom in the menu bar at the top.
Here is a link to GOES-12 water vapor imagery. It is updated once a day, and captures goings-on in the upper part of the troposphere (“jet-stream level”) during the overnight period, between about 6 PM and 4 AM. This is the one I often describe on the Monday morning forecast. Once you’ve clicked-in, you might want to set the animation-speed slider further to the right to speed it up — this will render a very fluid image that’s useful for getting a sense of what’s going on in the upper atmosphere over continent.
I’ve not tested it yet to see if it updates, but you can check the date and time at the bottom of the image (time is in “UTC,” essentially Greenwich Mean Time, so subtract 6 hours for CST or CDT). Future posts will explain how to interpret what you see on WV imagery.
One last link that might be relevant to the 3/25 forecast: 7 day satellite retrospective from the SSEC.
If you’re interested in additional graphics, you might want to check out the UW’s SSEC Data and Imagery page.