B737 Undifferentiated or Other Model
Flight Crew Last 90 Days 138; Flight Crew Type 7000
Aircraft Equipment Problem Critical; Deviation - Altitude Excursion From Assigned Altitude; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Issued New Clearance; Flight Crew Diverted; Flight Crew Landed As Precaution
Aircraft
We were on a large weather deviation to avoid a large line of weather. Passengers; and Cabin Crew; were all directed to be seated earlier; due to turbulence associated with the weather. At FL360 cruise; we received a Cabin Altitude Warning horn and immediately donned masks and established communications. Captain was Pilot Flying (PF). I immediately; as Pilot Monitoring (PM); notified ATC and informed them we were going to descend immediately; and also requested a turn further to the west to avoid turbulence; as we descended; so that we could increase our airspeed for the descent. We followed the QRH; and determined we could not control the cabin altitude. I believe the cabin was around 15;000' to 16;000'; and it was climbing fairly rapidly as we began descent. However; it did not appear to be an explosive depress situation. Masks were deployed in the cabin; per the Checklist/automatically; and I asked ATC what the closest airport was. We decided to divert to the closest field so as not to create a fuel situation by continuing to destination. After coordinating with Flight Attendants (FA); Passengers; ATC; and Dispatch via ACARS; we completed Checklists and landed uneventfully. We requested EMS to be standing by at gate in case any passengers needed medical attention.
B737 First Officer experienced a loss of cabin pressurization at FL360 while deviating around weather. ATC is advised and the flight descends to 10;000 feet diverts to the nearest suitable airport.