____________ air masses originate from the poles.

According to Seto and Shepherd (2009), one impact of the urban environment on climate is by which of these factors?

At what stage of mid-latitude cyclone formation has the system reached its maximum intensity?

What does IPCC stand for?

The ___________ risk category is characterized isolated severe thunderstorms, limited duration, winds 40 – 60 mph, hail up to 1”, and low tornado risk.

Mid-latitude cyclones occur as a result of which two clashing air masses?

_____________ a tropical cyclone in the North Atlantic and Northeast Pacific that has a maximum 1-minute sustained wind of 64 knots or greater.

How do meteorologists define a drought?

In tropical cyclones, the wind speeds and intensity increase as the central pressure decreases.

In the United States, warning agencies use a ______ – minute average wind speed to determine the intensity of a hurricane.