A forecast calling for snow when the temperature is above the freezing mark may seem impossible, but that is exactly what will take place across parts of the East through Wednesday.
How cold the air is in the upper levels of the atmosphere is more important to the survival of a snowflake than what the temperature is at the surface.
Once a snowflake forms, it can survive the trip to the ground if the atmosphere below that point is subfreezing. The snowflake will melt into a rain drop if it passes through a deep layer of air that is above freezing.
If the temperature near the surface is not significantly above freezing, the snowflake will not have time to melt until it actually touches the warmer ground.
If you still have doubts and live across the Northeast, just keep checking your thermometer as you see Wednesday's snow fall.
A spike in severe thunderstorms, capable of producing tornadoes, will follow a slow start to severe weather season in 2014.
A storm system will bring snow and ice to parts of the mid-Atlantic and the South through Monday.
After a chilly weekend, a milder week is ahead for the Cleveland area.
Rainy weather is expected midweek for the Detroit area.
No rain is in sight for southern California this week. Sunshine and mild weather will prevail.
Mother Nature will bring another blast of winter weather from Missouri to Delaware before spring arrives.
Snake River, WY (1906)
Minus 50 degrees -- lowest ever for March in 48 United States.
Mid Atlantic (1945)
Early "heat wave": Location: Temperature(F): Norfolk, VA 90 degrees Raleigh, NC 92 degrees Charlotte, NC 90 degrees Greensboro, NC 90 degrees Richmond, VA 91 degrees Sussex, NJ 90 degrees Hammonton, NJ 90 degrees Reading, PA 85 degrees (16th-17th) St. Patrick's Day snowstorm: New England, New York & Pennsylvania. Blue Hill Observatory outside Boston reported 12.6". Some spots had 20", crippling winds accompanied the storm.
Cheyenne, WY (1994)
A wind gust to 74 mph; a roof was blown off a mobile home in South Cheyenne; a tractor- trailer was blown over on I-25.