B757-200 flight crew reported diverting due to smoke in the cockpit.

Attributes
ACN	1573630
Time
Date	201808
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Route In Use	Vectors
Flight Plan	IFR
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Flying First Officer
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Events
Anomaly	Aircraft Equipment Problem Critical Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

We started climbing from 34000 feet to 36000 feet; working our way around thunderstorms. We got a strong acid smell and haze in cockpit. The first officer was [the] pilot flying. We put on oxygen masks and established communication. I instructed the first officer to fly the aircraft. I would talk to ATC and work the situation. I saw ZZZ on my screen and to the west; the weather was clear. I typed in direct ZZZ. I asked ATC what runway was in use. I pulled up the runway final approach fix. We flew maximum forward speed until a few miles from the final approach fix; coupled ILS auto land; flaps 25; [and] maximum auto brakes landing.

Original NASA ASRS Text

Title: B757-200 flight crew reported diverting due to smoke in the cockpit.

Narrative: We started climbing from 34000 feet to 36000 feet; working our way around thunderstorms. We got a strong acid smell and haze in cockpit. The First Officer was [the] Pilot Flying. We put on Oxygen Masks and established communication. I instructed the First Officer to fly the aircraft. I would talk to ATC and work the situation. I saw ZZZ on my screen and to the west; the weather was clear. I typed in direct ZZZ. I asked ATC what runway was in use. I pulled up the runway Final Approach Fix. We flew maximum forward speed until a few miles from the Final Approach Fix; coupled ILS auto land; flaps 25; [and] maximum auto brakes landing.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.