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Severe Thunderstorms

Millions in risk zone as tornado threat spans several states


Staff Writers

Tuesday, April 3, 2018, 14:02 - With a potent low now looking to take a faster track across the Midwest, forecasters are looking at an increased risk for severe storms on Tuesday from the Ohio Valley to the Lower and Mid-Mississippi Valley.

The main threat with these storms looks to be large hail and damaging winds - particularly over the Ohio Valley - but isolated tornadoes cannot be ruled out. Watch for these storms to fire up quickly through mid-Tuesday afternoon for the Mid-Mississippi Valley and Ohio Valley, racing eastward to the Appalachians through the evening.


Weather highlights:
  • A surface low will strengthen as it lifts north and east from the central Plains to the Upper Great Lakes Tuesday.
  • Tuesday: A Moderate Risk for thunderstorms producing widespread damaging winds, large hail, and a few tornadoes exists over parts of the Ohio Valley and Mid-South regions.
  • Wednesday: A marginal wind-damage threat will be possible along the Eastern Seaboard into northern Florida on Wednesday.
  • MONITOR WARNINGS, HERE

Click play to watch below: Storm track and timing



Tornado 101: Everything you need to know about staying safe


As the surface low strengthens north and east from the central Plains to the Upper Great Lakes, thunderstorms are expected to fire off along the lifting warm front -- moving across the Ohio Valley, according to the National Weather Service.

"A line of thunderstorms will organize along and ahead of the front extending from the western portions of the Ohio Valley into Southeast Texas," explains the agency in a statement. "Some of these storms could become severe especially from southwest Ohio to southeast Arkansas."

Click play to watch below: Future radar



An enhanced threat for thunderstorm-wind damage and tornadoes exists over parts of the Ohio Valley and Mid-South regions Tuesday.

Residents are advised to prepare for rapidly changing weather conditions and to be prepared to take cover when severe weather strikes. Below is a look at the three-day severe storm risk as issued by the Storm Prediction Center:

As the storm moves eastward, a marginal wind-damage threat will be possible along the Eastern Seaboard into northern Florida on Wednesday.

Updates on all weather watches and warnings can be monitored on the ALERTS page of our website, here.

Do you know the difference? Funnel cloud or tornado? See what sets them apart, below.


LIGHTNING SAFETY TIPS

  • Stay away from windows.
  • Unplug appliances.
  • Do not use the telephone.
  • Avoid running tap water.
  • Try to reach a safe building or vehicle (picnic shelters, dugouts and sheds are NOT considered safe).
  • Avoid high ground, water, tall, isolated trees and metal objects such as fences or bleachers.
  • If you are out on the water, get to land and find shelter immediately.

IF SOMEONE IS STRUCK BY LIGHTNING

  • Call for help / dial 911.
  • The injured person has received an electrical shock and may be burned or have other injuries.
  • People who have been struck by lightning do not retain an electrical charge and can be handled safely.
  • Give first aid. If the heart has stopped beating, a trained person should give CPR.

Environment Canada offers a 30-30 rule. If you can count 30 seconds or less between seeing a lightning flash and hearing the thunder, take shelter and stay there until 30 minutes after you last hear thunder. 


KEEP ON TOP OF ACTIVE WEATHER: Visit the Alerts section of the website


TORNADO SAFETY TIPS

  • Should a tornado develop, seek underground shelter when possible -- preferably in a basement.
  • In the absence of an underground room opt for a windowless interior room or hallway on the lowest level of a solid building.
  • Never try to outrun a tornado.
  • Keep cell phone and/or battery-operated radio handy so you can keep on top of tornado watches and warnings.
  • DO NOT go outside if a tornado is imminent or occurring in your area.

SEVERE WEATHER WARNING SIGNS

  • Large hail
  • Strong winds
  • Debris clouds and tree damage
  • Torrential rain 
  • Severe thunder/lightning
  • Dark, often greenish clouds
  • Funnel clouds

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