A320
Ground Event / Encounter Other / Unknown
Flight Crew Rejected Takeoff
Weather
We were proceeding down the runway and the Captain (CA) applied the brakes hard instead of lifting off and we came to an abrupt stop.  I immediately yelled to remain seated as I looked out my door to see if I saw any fire/smoke.  At that time the CA came on and said Flight Attendant (FA) stations and then immediately said Remain seated; Remain seated; Remain seated.  FA-D was assessing her door.  There was no immediate danger and at that time the CA called me.  He told me the takeoff was aborted due to a wind shear alert.  He asked if everything was ok; I told him yes and he said he would make an announcement.  I called the AFT to inform the crew what happened and they informed me that they assessed the situation from their doors.  When the CA was made aware of the tires deflating; he called and said stairs were being bought to the aircraft with busses.  We deplaned all passengers with no incidents.
An A320 Flight Attendant reported the Captain executed a rejected takeoff because of a windshear alert. Following the rejected takeoff at least some of the main gear tires deflated.