What to do if you're camping when a tornado hits

In the woods off McCrae Lake near Georgian Bay,David Arama and about two dozencampers waited out a storm huddledbeneath overturned canoes.

Once the blistering winds had passed through, the group emerged to find their tents destroyed.

"Had we stayed inside our tents, we probably would have had mass casualties," Arama said.

Whether the group under his instruction had evaded a tornado or a microburst a violent rush of sinking air within a thunderstorm Arama still isn't sure.

Tornadic activity is definitely the last thing on Earth you want to be out in.- David Arama, WSC Survival School

But the owner of outdoor education company WSC Survival School Inc. said thatclose call in 2002served as a lasting reminder aboutthe importance ofrespectingextreme weather.

"Being out camping is a risk, and tornadic activity is definitely the last thing on Earth you want to be out in," he said. "I'll take a bear, angry mosquitoes you know, just about anything but a tornado."

With four tornadoes recently confirmed in Ottawa and surrounding areas, outdoor experts told CBC what campers should and should not do if they're caught in a tornado.

The tornadoes

Two of thoserecenttornadoeshit the south Ottawa suburb of Barrhaven on July 13.

The Northern Tornadoes Project (NTP), a research group founded by Western University, found both had a maximum estimated wind speed of 155 km/h.

At least 125 homes sustained damage from the tornadoes, which were categorized as EF-1 on the enhanced Fujita scale, a measure of tornado strength.

Another NTP investigation released the following Wednesday found two more tornadoes touched down in eastern Ontario on the same day.

One struck Embrun, Ont., while the other struck between Fournier and St-Bernardin, Ont.

Classified as EF-0, those tornadoes were not as destructive as the two in Barrhaven, according to the NTP, and only caused minor damage to trees, crops and roofs on several houses.

Certain trees can be dangerous

Even tornadoes of lower magnitudes are powerful enough to do significant property damage and kill or seriously injure people, Arama said.

Although the end result of gettingcaught inone may come down to "sheer luck," he said, campers canimprove their chances of survival.

If no buildings are available nearby, Arama recommended people seek shelter on the leeward, or downwindside of a large rock or rocky outcrop.

Because storms tend to move from west to east, sheltering on the southeast side of a rock could protect campers from anytrees that snap and fall in an eastward direction, Arama said.

"Not a guarantee, though," he said. "Even branches could be enough to kill you."

Monica Vaswani, a warning preparedness meteorologist with Environment Canada, said while severe thunderstorms do tend to move eastward, storm movement with respect to tornadoes is less predictable.

As a result, Arama said,awareness about surrounding tree species may be a lifesaver.

Seek out healthy hardwoods such as oak, maple and beech that are less likely to snap in a storm, he said.

In turn, he recommendedavoidingsofter treessuch as birch, pine and poplar.

"White pines are really notorious," he said. "They snap in half."

Jason Smith, a recreation program manager for multiple federally protected forests and grasslands in Colorado and Kansas, agrees.

In addition to seeking outsturdy tree species, Smith said to avoid burn areas and other places where the canopy may already be damaged.

If the immediate surroundings aren't wooded, he recommended droppinglow to the ground and seekingout a ditch.

Car camping

Anyone who has access to avehicle, Smith said,shoulddrive to a nearby town as soon as they are alerted to an incoming tornado.

"That doesn't mean try to outrun it," he said. "Because chances are you probably won't, and your vehicle may be hit by debris."

But if someone is already on the road or stranded in their vehicle, he said, they should pull over, duck below the windows and cover their head and neck with their hands.

Although it may be tempting, he said, drivers or pedestrians should never take shelter under a bridge or overpass, because the structure creates a "wind tunnel" that may suck dangerous debris through.

WATCH | Hawkesbury, Ont., trio survives severe thunderstorm in timber shelter:

Hawkesbury, Ont., trio survives severe thunderstorm in timber shelter

2 years ago

Duration 3:14

Warning: Video content may be disturbing to some viewers. Avid outdoorsman Tyson Peers was outside working on a timber shelter with his brother Cam Deslauriers, 12, and Cam's friend Miguel Larocque, 11, when a severe thunderstorm hit on May 21.

Smith summed up hisbest advice, however, as"know before you go."

"Make sure you're looking at where you're going to be," hesaid.

Several technologies make it easier than ever for campers even those who venturedeep intothe backcountry to stay on top of adverse weather, Arama said.

He recommended bringingalong a satellite tracking device or satellite phone, or purchasing a cellphone signal amplifier that can boost thesignal by up to 40 times.

That way, he said, campers can remain patched into the Environment Canada alert system.

"I believe they're a lifesaver," he said. "They do make a difference."