By 2:30 p.m EWT (12:30 p.m MWT) the trough associated with the upper cold front had broadened somewhat and become orientated in a northwest-southeast direction extending from southeastern Montana through Western Nebraska.
Precipitation had spread eastward to Bismarck, N. D. and continued west of Bismarck with ceilings seven to twelve hundred feet Dickinson to Billings and visibilities two to four miles in light rain and light fog. Miles City reported overcast with ceilings estimated seven hundred feet and visibility one and one-half miles with light rain. Lower scattered clouds were reported at four to five hundred foot in the rain areas west of Golva, N. D.
Reports made at 11:30 a.m. MWT at stations in North Dakota and Montana were as follows:
| 11:30 a.m MWT Golva, N. D. |
Ceiling 900 feet, overcast, lower scattered clouds at 500 feet, visibility 5 miles, light rain, light fog, temperature 47, dewpoint 46, wind east 25, altimeter 29.58 |
| Miles City, Montana | Ceiling 800 feet, overcast, lower scattered clouds at 500 feet, visibility 7 miles, light rain, temperature 51, dewpoint 50, wind east-northeast 18, altimeter 29.51, overcast ragged, visibility 2½ miles southwest. |
| Custer, Montana | Ceiling estimated 1200 feet, overcast, visibility 5 miles, light rain, temperature 50, dewpoint 50, wind northeast 11, altimeter 29.50, overcast ragged, visibility 9 miles southeast. |
| Billings, Montana | Closed ceiling estimated 200 feet, overcast, visibility ¾ mile, variable, light rain, light fog, temperature 44, dewpoint 44, wind south-southwest 8, altimeter 29.51. |
| Miles City SPECIAL 11:52 a.m MWT |
Ceiling 700 feet, overcast, visibility 1½ miles, light rain, temperature 51, dewpoint 50, wind east-northeast 18, altimeter 29.51, overcast ragged. |
