1) Hit and hold the shift key and click on the reload button on your browser.
2) Hit F5
3) Right click on the map, choose to view map in new tab and then use technique(s) 1 or 2 above.
Data is for period ending 7am today
(Click on the area you are interested in)
Please Note that most of the Data I use to make these maps can also be found in the Links Section of this site.