Thunderstorms pose a safety hazard in several ways. Lightning is the most dangerous part of a thunderstorm, and it kills more people than hurricanes and tornadoes combined. Thunderstorms produce heavy rain, which can cause flash flooding. The strong winds from a thunderstorm can also cause widespread damage. Each of these components requires specific precautions to minimize their danger.

A thunderstorm typically has a diameter of 15 miles and lasts for 30 minutes, which is much smaller than a hurricane or winter storm. The National Weather Service places specific criteria on a severe thunderstorm. These include thunderstorms that produce hail with a diameter of at least ¾ inch, wind gusts of at least 58 mph or a tornado. Severe thunderstorms comprise about 10 percent of all thunderstorms.

The NWS recommends that you stay indoors for 30 minutes after the last clap of thunder when you hear thunder less than 30 seconds after the lightning. This rule is known as the 30/30 lightning safety rule.

Avoid taking emergency shelter in structures that are vulnerable to high winds, such as a mobile home. Outdoors shelters such as sheds, pavilions and golf’s typically will not protect you from flying debris and lightning. Avoid and report downed power lines. Bring pets and livestock under shelter to protect them during hailstorms.

When a home or commercial building needs electrical work, many owners make the mistake of only getting a single estimate for the job. Getting multiple estimates may take longer than just having one Denver electrician visit the premises, but this extra time could lead to substantial savings and a better quality of workmanship.

There are several important aspects of any project that should be included in an electrical  estimate. Both material costs and labor costs should be specified. Any special fees for work permits or city inspections should also be listed. Sales tax and hazardous material fees should be indicated as well. In addition, the estimate should include a date that the amount is guaranteed through as well as a “not to exceed” price point.  . Any estimate should allow home and business owners to compare the quality of the materials used by different electrical contractors and getting multiple estimates in writing can help property owners compare the hourly labor rates of contractors as well as any other service fees.