Aviation Accident Report: United Air Lines Flight 4/Appendix 1
APPENDIX
United States Weather Bureau observations feeds at the Salt Lake City Airport from 10:00 to 11:30 p.m. on May 1, 1942.
| 10:00 p.m. | Classification contact; ceiling 2000 feet, overcast with scattered clouds at 1200 feet; visibility 8 miles limited to 3 miles to the southeast by light smoke; light rain; temperature 42, dew point 41; wind north-northwest, 18 m.p.h. |
| 10:12 pm. (Special) |
Classification instrument; ceiling 700 feet variable, overcast, with lower broken clouds; visibility 8 miles, limited to 3 miles to the southeast by light smoke; light rain; temperature 42, dew point 41; wind north-northwest, 20 m.p.h. |
| 10:30 p.m. | Classification contact; ceiling 1600 feet, overcast, with scattered clouds at 700 feet; visibility unlimited, limited to 3 miles to the southeast by light smoke; light rain; temperature 40, dew point 38; wind north-northwest, 20 m.p.h. |
| 11:00 p.m. | Classification contact; ceiling 1600 feet, overcast, with scattered clouds at 700 feet; visibility unlimited, limited to 3 miles to the southeast by light smoke; light rain; temperature 40, dew point 38; wind north-northwest, 20 m.p.h. |