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Surface Analysis Highs, lows, fronts, troughs, outflow boundaries, squall lines, drylines for much of North America, the Western Atlantic and Eastern Pacific oceans, and the Gulf of America.

Current US Surface Weather Map Current storm systems, cold and warm fronts, and rain and snow areas.

2 days ago · This interactive surface analysis page combines maps archived in recent years with the historical surface analysis archive (maps prior to May of 2005). Click on the calendar entry box near …

Weather maps of current conditions for the USA & Canada, regional weather observations, plus lightning maps, snowcover maps & more.

3 days ago · These maps are updated about 2 hours after their indicated analysis time. (The next updates will be the 0000Z maps at about 0200Z when this page will refresh automatically.)

North America, United States and Regional Surface Analysis Charts with Past 24 Hour Satellite Overlay. Radar Overlays are also Available Here.

Current Weather Maps Contained on this page are sets of large, high-resolution surface maps. They will produce optimal results when printed on an 11 x 17" printer such as the HP 5000 Laserjet or Epson …

Weatherlogics Surface Viewer The surface maps are updated four times per hour at +10, +20, +30, and +40 minutes past the hour. Even though the map updates numerous times per hour, all observations …

In the northern hemisphere, airflow will circulate clockwise around an area of high pressure. A "Low" is an area of lower pressure surrounded by areas of higher pressure. Clouds, precipitation, and high …