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SAN ANTONIO -- San Antonio hasn't received decent amounts of rain in a long time, and there isn't any precipitation forecasted for Bexar County. With fire fuels continuing to dry out over the long term, and warmer temperatures returning, the threat of fires continues to rise.

That's why, for the next 90 days, parts of Bexar County are under a burn ban.

Click here for a map of active wildfires.

County commissioners voted Tuesday to issue the ban for unincorporated areas of the county, due to drought conditions.

Reducing the potential for any burning becomes a very important point at this time, said Craig Roberts, the Bexar County fire marshal.

As the seasons move closer to summer, the temperatures start rising, San Antonio doesn't get rain, the humidity drops and wind speeds start picking up -- those are all factors that contribute to big fires, Roberts said.

So what exactly has been banned?

I would assume an open-flame fire, but I'm not sure what else that would include, said Susan Rang, a local who was out at Orsinger Park with her kids during spring break.

KENS 5 asked Rang if using the built-in grills at the park was allowed during the ban.

Maybe, but I'm not sure, Rang said.

According to the fire marshal, those grills shouldn't be used. Only unincorporated areas of Bexar County are under the ban; however, if someone is going to be cooking outside, the grill must have a lid -- since all it takes is one ember to ignite a fire.

If we have cooking devices that have closed lids, we will allow them, Roberts said. If they are just an open grill, we don't allow them, and we will issue citations for using them.

Household trash and domestic-waste materials can be burned during the ban, but only inside a burn barrel equipped with a wire-mesh screen, to prevent the spread of sparks.

The burn ban for parts of Bexar County was recommended to the commissioner's court after the Keetch-Byram Drought Index hit the trigger point. That's the scale used to measure the potential for wildfires in a given area; it measures from zero to 800.

As of March, Bexar County has passed the 400-point mark, and that number will likely go up, according to fire officials.

The burn ban runs from now until June 9, 2014. It will not affect Brackenridge or any of the other popular parks in the county.

Fire marshal Roberts said the ban could be lifted early, if conditions improve dramatically; however, the ban could also be extended, if the drought continues to grow.

Click here to read the press release sent out by the Bexar County Fire Marshal.

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