Within 36 hours
Sort of. A tornado warning means that either a tornado has already formed or may form very soon.
Such a thing is impossible to predict. A tornado warning itself is a prediction that the threat of a tornado is imminent. As soon as signs indicate that a tornado warning is warranted, then one is issued. So there is no way of nowing when a tornado warning is going to be issued until it actually happens.
A tornado warning is an advisory that is issued when a tornado has either been spotted or detected or that a thunderstorm in the area is likely to produce a tornado soon.
The most recent hurricane of the 2011 season is Hurricane Katia. This storm is in fact still active. Two other storms are active in the Atlantic: Tropical Storms Maria and Nate. Nate is expected to become a hurricane soon.
Yes. Advisories were issued on Sandy as soon as the storm formed in the Caribbean. Serious warnings were issued days before Sandy hit the east coast.
The written copy of the warning notice should be sent to both the child and parent as soon as possible after the issuing of the warning. This helps ensure that both parties are aware of the details of the warning and can address any concerns or take necessary actions promptly.
A tornado watch is issued if general conditions in a region (usually covering a state or two) are favorable for the formation of tornadoes. This usually means that severe thunderstorms will be forming in an area of strong wind shear. A tornado warning is issued for a county-sized area if a tornado or funnel cloud has been reported or detected or if signs within a thunderstorm indicate that one may form soon.
No. A tornado watch means the general weather conditions are favorable for tornadoes. If a tornado has been sighted then a tornado warning is issued.
the hurricane we just had was hurricane Irene and soon we are going to have hurricane Tiarra.(2012)
If a tornado is spotted or detected, or if a rotation is detected that is likely to lead to a tornado, that is when a warning is issued. A watch simply means that conditions are favorable for tornadoes, but does not mean that there is an imminent threat. So a tornado is more likely to strike when a warning is issued.
The most advanced tornado warning system belongs to the U.S. Doppler radar scans the wind an rain inside thunderstorms, which allows meteorologists to see if there is rotation in a storm which can produce a tornado. Weather spotters, firefighters, and police can report sightings of rotation in the clouds, funnel clouds, and tornadoes that touch down. If a tornado is spotted or is likely to form soon, then a tornado warning is issued. The warning will be broadcast over TV, radio, the internet, and smartphone apps. In some towns loud sirens will sound if a tornado warning is issued.
A warning is worse. It means that something (like a tornado) has been detected or the threat of one is imminent. A watch means the overall conditions are favorable to form bad weather (such as a tornado) in a general area.