When Brett is holding the bottle of morphine the cap is off the bottle. When Chilli is holding the bottle the red seal is in place on the bottle.
There were multiple errors regarding the tornado. It's generally not one tornado that makes its way through a state. If that were the case, the destruction would be catastrophic. Tornados are very common in the mid-west. The firefighters would be used to dealing with the weather conditions. The conditions appeared to fit the criteria for a tornado watch instead of a warning, since it was still sunny outside. A warning indicates there was a funnel cloud spotted in the area. The fire department would not be locked down. Instead, they would likely be out looking for funnel clouds. And finally, it is unlikely a family would pack a cooler to head to the basement prior to any storms starting.