B737 flight crew reported they may have departed las with illegal winds.

Attributes
ACN	1675859
Time
Date	201908
Local Time Of Day	1201-1800
Place
Locale Reference	LAS.Airport
State Reference	NV
Environment
Light	Daylight
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 180 Flight Crew Type 8000
Person 2
Function	First Officer Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 356
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence

Narrative:

While taxiing out to 08L at A8; we were number three or two for departure. We heard a company aircraft tell tower that with the current winds they are stating to other aircraft in their takeoff clearance that they are unable to depart. Tower then came back and said the airport winds were now variable at 6 kts. And 'is that ok?' they said 'it is;' and from then on tower cleared (I think) two aircraft to takeoff and called the winds variable at 6 kts. They then cleared us to takeoff; and either didn't state the winds or called them variable at 6 kts too. I can't remember; but I do remember I was paying attention to what she was saying; especially about the winds. We departed uneventfully. The next day I wake up to a text from another company pilot telling me I may have departed illegally. I told them I was number two or so in line when I heard that conversation take place about the winds. They said it may have been someone else then. I felt the best action is to fill out this [report] just in case; however; I don't believe we departed illegally based on the tower's advisement of the winds.

Original NASA ASRS Text

Title: B737 flight crew reported they may have departed LAS with illegal winds.

Narrative: While taxiing out to 08L at A8; we were number three or two for departure. We heard a Company aircraft tell Tower that with the current winds they are stating to other aircraft in their takeoff clearance that they are unable to depart. Tower then came back and said the airport winds were now variable at 6 kts. and 'Is that OK?' They said 'It is;' and from then on Tower cleared (I think) two aircraft to takeoff and called the winds variable at 6 kts. They then cleared us to takeoff; and either didn't state the winds or called them variable at 6 kts too. I can't remember; but I do remember I was paying attention to what she was saying; especially about the winds. We departed uneventfully. The next day I wake up to a text from another Company Pilot telling me I may have departed illegally. I told them I was number two or so in line when I heard that conversation take place about the winds. They said it may have been someone else then. I felt the best action is to fill out this [report] just in case; however; I don't believe we departed illegally based on the Tower's advisement of the winds.

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.