Page 4 - Damage Indicators News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Friday there was severe weather in Maryland. National Weather Service has a specific surveying process to measure the wind speeds of a possibly tornadic storm.

What is the Enhanced Fajita Scale, how is it used, and why was it created

Adequate safe rooms or shelters to protect the children. and they do have them installed in many parts of the state. just so happens they do not have them at the tower plaza school or briarwood at this point either. we told you that the tornado was now considered an ef-5. it made us think about how does the national weather service make that determination, especially after the tornado has already come through? i want to bring in the weather channel's mike seidel for insight on this. it's fascinating. a lot of people assumed it yesterday and they finally made it official. how do they make it of...

We have a 28 damage indicators. we look at hotels, motels if they are damaged. multistory complexes. even gas station canopies. and as far as a home goes, a single or multifamily home, 1,000 to 5,000 square feet is on the chart and they look at various degrees of damage. if that home is completely gone, a total loss, it's gone down to the slab, the winds generally about 170 miles an hour. if houses were blown off their slabs, immediately that's ef-4 damage. to get to an ef-5 you have to have significant steel or concrete damage. and that's what they found initially yesterday around that briarw...

Power of the tornado. might it get upgraded to a five? and give us a little insight into the scale. we had melissa with us onset who said they didn't even have up to a five back in 1999. >> well, the thing about it is, in 1999 tornado came through moore, oklahoma. they did, in fact, they actually measured winds, over 300 miles an hour with that particular tornado. we don't believe we had actual measurements with doppler radar on this one. but what they'll do is storm survey teams will come in here from the national weather service and they'll look at the damage. and what they do is they have d...