Printer-Friendly Page | E-mail this Page
 
Severe Weather Alerts

Understanding the potential for bad weather can help you stay safe and prepare for possible power outages. The following are the various advisories which may be issued by the National Weather Service. Stay tuned to your local television or radio stations to keep abreast of changing weather conditions.
  • Wind Advisory: Sustained winds between 25 and 39 mph and/or gusts to 57 mph could occur.

  • Severe Thunderstorm Watch: Issued when the weather conditions are right for the development of a severe thunderstorm, which could produce winds of at least 58 mph, hail at least ¾" in diameter. A watch is issued to provide you with enough lead time to prepare for the storm.

  • Severe Thunderstorm Warning: A severe thunderstorm has actually been sighted by spotters or indicated on radar. The conditions are dangerous and pose a threat to life or property. You should take cover and go to a safe place until the warning has passed. Severe thunderstorms could spawn tornadoes which can cause extreme damage so stay abreast of the latest conditions.

  • Freezing Rain: Rain or drizzle that falls as a liquid but freezes on surfaces such as the ground, trees, power lines, cars, streets, etc.

  • Freezing Rain Advisory: Issued when freezing rain is forecast but a significant accumulation is not expected. However, small amounts can cause poor driving or walking conditions which heavy amounts can produce dangerous conditions by pulling down tees and power lines.

  • Winter Weather Advisory: When winter weather such as snow, sleet, freezing rain is expected to cause significant inconveniences and travel may be hazardous. Alerts may also come in the form of Snow Advisory, Freezing Rain Advisory, Sleet Advisory, etc.

  • Snow Advisory: Snow is on its way but the track and amount is uncertain.

  • Winter Storm Watch: The potential for heavy snow or significant ice accumulations exists.

  • Winter Storm Warning: A winter storm is producing or is forecasted to produce within a short period of time heavy snow or significant ice accumulations.

  • Blizzard Warning: Snow and strong winds combined will produce blinding snow, near zero visibility, deep drifts, and life-threatening wind chill for 3 hours or more. Frequent gusts could reach 35 mph or higher. You should seek shelter immediately and stay indoors until the storm passes.

  • Flood Watch: Conditions are conducive for a flood within 6 hours after heavy rains have ended.

  • Flood Warning: Flooding conditions are actually happening or are imminent in the warning area.

  • Flash Flood Watch: Flash flooding is possible. Flash flooding is caused by heavy or excessive rainfall in a short period of time, generally less than 6 hours. Flash floods can also occur should a dam fail depending on the type of dam and the time at which is breaks.

  • Flash Flood Warning: Flash flooding is in progress or imminent in the warning area. Flash flooding is caused by heavy or excessive rainfall in a short period of time, generally less than 6 hours. Flash floods can also occur should a dam fail depending on the type of dame and the time at which is breaks.

  • Tropical Storm Watch: Sustained winds between 39 and 73 mph are possible within the next 36 hours. This watch is issued to provide you with enough lead time to prepare for the storm.

  • Tropical Storm Warning: Tropical storm conditions are expected within the next 24 hours.

Back to Top