Maritime Tropical Air Mass Brings Summer Storms over Sonora Desert
Maritime Tropical Air Mass Brings Summer Storms over Sonora Desert
Canadian Tundra is Source Region for Cold Dry Air Masses
Cold, Dry Air
from Canada
Brings
Frigid Winter Air
to the United States
Air-MassSource RegionsforNorth America
Air Masses Acquire the Temperature and Moisture Properties
of their Source Regions
Lake-Effect Snow Belts
Lake-Effect Snow
cP Air-Mass Modified As It Crosses the Ocean
Cumulus Clouds Developing when mT Air from the Gulf of MexicoMoves over Heated Land in the Summer
Average AnnualPrecipitationin Eastern two-thirdsof the United States
Monthly Precipitation Data for Tucson, Arizona;Summer Precipitation Results from MonsoonCaused by mT Air Mass from the Pacific Ocean
Temperatures and Dew-Points at Weather Stations in the United States
Surface
Weather Map
during 1989
Cold Wave
Caused
by cA Air
Even ModernFrost-Prevention MethodsMay Not Be Able to Save Florida Citrus Cropsduring Cold Waves
A Record 69 Inches of Lake-Effect Snow Fell in Chardon, OH in 1996
Snow Totalsfrom 1996Lake-Effect Storm