VISIT: Meteorological Interpretation Blog

On 4 February a shortwave tracked across the Upper Great Lakes towards the east, ahead of the shortwave, anomalously high moisture at low to mid-levels existed which contributed to a historic ice storm for the region. The NWS forecast office in Marquette, MI has a great web-page summarizing this event including pictures and the meteorological Continue Reading

As Winter Storm Harper passed through the northeast United States, the storm brought heavy precipitation in the forms of snow, rain, and freezing rain that produced significant ice accumulation on the ground. Storm total snowfall, rainfall and ice accumulations were observed in Connecticut, Massachusetts, and Rhode Island. Specifically snow and ice accumulations ranged from 1-11 Continue Reading

By Jorel Torres, Dan Bikos and Lewis Grasso A majority of National Weather Service (NWS) training is focused on satellite products for the CONtinental United States (CONUS). However, how can satellite products help NWS forecasters with satellite interpretation in Off CONUS locations such as Alaska? One goal is to use synthetic satellite imagery from the Continue Reading

J. Braun and Louis Grasso Figure 1: GOES-11 fog product for 8 UTC 2 March 2010. Identification of liquid water cloud layers that have temperatures below freezing is important for aviation safety. Brightness temperature differencing two channels may be used to identify liquid water cloud layers. Figure 1 (above)shows the channel difference between 3.9 and Continue Reading