2020年11月29日 · By definition, Cloud Ceiling is the height above the ground or water of the base of the lowest layer of cloud below 6000 meters (20,000 feet) covering more than half the sky. So does, Cloud Ceiling become Cloud base if it is covering less than half of the sky.

VFR cloud clearance requirements are listed in 14 CFR 91.155 and for Class E airspace specifies: Class E: Less than 10,000 feet MSL. Flight Visibility: 3 statute miles Distance From Clouds: 500 feet below, 1,000 feet above, 2,000 feet horizontal. At or above 10,000 feet MSL. Flight Visibility: 5 statute miles

So assuming you want to depart VFR, you would need 1,000' ceiling to depart. If you want to depart IFR, you can do so with 0 ceiling and 0 visibility. (Subject to any conditions in the Obstacle Departure Procedure §91.175 (f)(3)). §91.155 Basic VFR weather minimums.

2023年2月21日 · Also, in my opinion, the official ceiling reported in a METAR, for example, is not a cloud or group of clouds directly above the aircraft measured and defined as a ceiling by the pilot. Instead, it is a defined and regulatory based atmospheric condition that, if it is reported as being below 1000 ft. AGL, renders the entire surface area of the ...

2019年2月22日 · Here's the current METAR at KFLG: KFLG 210657Z AUTO 21010KT 3/4SM -SN BR VV010 M07/M09 A2961 RMK AO2 SLP044 P0003 T10721094 410331178 It doesn't have anything about cloud layers or "CLR", but...

2021年7月20日 · 91.155(c) adds the additional requirement of a 1000ft ceiling within the lateral boundaries of controlled airspace designated to the surface for an airport. 91.155(d) adds the additional requirement of 3 miles ground visibility within the lateral boundaries of the surface areas of Class B, Class C, Class D, or Class E airspace designated for an ...

2021年6月27日 · I think you're getting the concept of a "ceiling" confused with cloud clearance regulations. They're two different things. A "ceiling" is a layer of clouds that is greater than a certain density. At least in Class D airspace, you can't fly VFR at all unless either there is no ceiling, or the ceiling is more than 1,000 feet above the ground.

2016年3月4日 · a) visibility, 10 km or more, and the lowest visibility is not reported; b) no cloud of operational significance; c) no weather of significance to aviation as given in 4.4.2.3 and 4.4.2.6; information on visibility, runway visual range, present weather and cloud amount, cloud type and height of cloud base shall be replaced in all meteorological ...

2023年6月2日 · Weather minimums for class G during the day (below 1200'AGL) are 1SM vis. and clear of clouds. The categorical outlook (AIM 7-1-7) for IFR is 1sm to 3sm visibility and a ceiling of 500'AGL to 1000'AGL. Now if I want to takeoff from class G airspace during the day as VFR with 2SM of visibility and a ceiling of 700'AGL, am I allowed to do it?

As the dew point drops, the cloud ceiling falls. Combine that with rising terrain and accidents can happen. The spread between the dew point and the air temperature is a critical tool (the higher the better) for avoiding low ceilings.