Day: July 15, 2008

The North American Monsoon Season Has Begun

(Courtesy NOAA/NWS – July 15, 2008) Jeff Braun Strong heating over the elevated (Mexican Plateau) desert southwest CONUS causes an area of low pressure to form known as a thermal low.  Since the air pressure is relatively higher over the nearly adjacent ocean areas (Gulf of California and the Tropical Pacific) to the south and west, air flow (from high Continue Reading

Climatology Convection Heavy Rain and Flooding Issues Monsoon

Volcano Season is Year ‘Round

Jeff Braun Volcanoes, particularly volcanic ash, are major concerns to many of us in meteorology.  While the physical presence of the mountain and the energy expended during an eruption can be quite enormous, dangerous, and both life and property threating,  the atmospheric discharge of ash can also be a major hazard to aviation as well as the local Continue Reading

Aviation Weather Visibility Volcano Weather

(Experimental) Tropical Cyclone Formation Probability Product (TCFP)

Jeff Braun With the main portion of Tropical Cyclone Season still around the corner (it’s slowly winding up), we thought we’d point you to the next generation of the operational TCFP product at: http://rammb.cira.colostate.edu/projects/gparm/index.asp.  New features include: • Extended domain: The product has been extended to cover the Northern Hemisphere Central and West Pacific tropical cyclone basins. Continue Reading

Satellites Tropical Cyclones