The State Organization Index provides an alphabetical listing of government organizations, including commissions, departments, and bureaus.
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Hurricanes are a rotating low-pressure tropical weather system. Systems with maximum sustained surface winds of less than 39 miles per hour (mph) are called tropical depressions. Those with maximum sustained winds of 39 mph or higher are called tropical storms. When a storm's maximum sustained winds reach 74 mph, it is called a hurricane. The Saffir-Simpson Hurricane Wind Scale is a 1 to 5 rating, or category, based on a hurricane's maximum sustained winds. The higher the category, the greater the hurricane's potential for property damage.
Hurricanes have the power to cause widespread devastation, and can affect both coastal and inland areas. Threats from hurricanes include:
Although the Atlantic hurricane season is officially June 1 through November 30, the most active time for these storms in Massachusetts is late August through September.
The National Weather Service issues tropical storm and hurricane watches and warnings to alert the public of potential hazardous conditions. It is important to understand the difference between a watch and a warning so you know what to do to stay safe.
Hurricane Watch — Hurricane conditions are possible within the next 48 hours.
Tropical Storm Watch — Tropical storm conditions are possible within the next 48 hours.
Hurricane Warning — Sustained winds ≥ 74 mph associated with a hurricane are expected to affect a specified area within 24 hours.
Tropical Storm Warning — Sustained winds of 39–73 mph associated with a tropical storm are expected to affect a specified area within 24 hours.