WOAY-TV (Oak Hill, WV): As severe weather season starts up once again, Meteorologist Christian Boteler brings the difference between the watches and warnings we see on a regular basis and why they are issued:
WATCHES: Watches for severe thunderstorms and tornadoes are issued by the National Weather Service (NWS) when the confidence of severe weather is above 50%, usually a day or two ahead of the forecasted weather. When a watch is issued, start preparing for the weather. This includes talking to family members about plans, where to take cover, and supplies you may need in case of severe weather. Supplies include food, water, a first-aid kit, batteries, flashlights, and a radio to stay informed in case of a power outage.
WARNINGS: Warnings are issued either during or minutes to hours before the event depending on the event. These will be issued once a storm reaches severe criteria, which will be discussed below. When warnings are issued, DO NOT PANIC! Grab your supplies and take cover immediately. Make sure to contact loved ones in the path of the storm to make sure they know to take cover. Grab your pets and children as well!
SEVERE WEATHER CRITERIA: For a Severe Thunderstorm Warning to be issued, gusts must be 58 mph or more or hail with a diameter of an inch or more must be produced. Once the criterion is met, the NWS will issue a warning for currently and imminently affected areas.
A Tornado Warning will be issued once a twister is observed either on the ground or by radar readings. Radar indicated tornado warnings are much more common and generally have more lead time. When these are issued, take cover in an enclosed area with no windows or outside walls and have blankets or a mattress to protect from debris.
