MetTrailer Spring 2022 Fog Observations

Date is based on local time zone (CST). Min. T, Min. Visibility, Max. RH, and Min. WS is for the overnight/morning low visibility period, taken from the WXT536. Visibility is taken from the MiniOFS. Fog Occ. is if fog occurred on that day.

Date Min. T Min. Visibility Max. RH Min WS Fog Occ. Notes
2022/03/18 0.2 C 6.88 km (4.27 mi) 97.6 % 0.21 m/s No Fog occurred in Grand Forks and numerous spots in eastern ND and western Minnesota; nothing near Fargo
2022/03/19 -0.8 C 16.77 km (10.42 mi) 93.8 % 1.64 m/s No
2022/03/20 -0.1 C 10.1 km (6.28 mi) 100 % 0.10 m/s No Models pushed fog during morning, only occurred within isolated spots in western Minnesota
2022/03/21 5.10 C 31.5 km (19.8 mi) 70.4 % 0.38 m/s No
2022/03/22 -2.3 C 84 m (0.05 mi) 100 % 0.12 m/s Yes Fog occurred immediately following the passage of a quick clipper system between 6:20 UTC and 9:50 UTC. Once wind direction changed to NW, fog dissipated.
2022/03/23 0.40 C 28.0 km (17.4 mi) 94 % 5.06 m/s No
2022/03/24 -2.3 C 7.0 km (4.35 mi) 100 % 0.82 m/s No Surface stations in Fargo briefly reported fog/mist at 08:00 CDT this morning with visibilities lowering to 6 mi. No actual fog formed.
2022/03/25 0.20 C 17.9 km (11.1 mi) 78.8 % 4.73 m/s No
2022/03/26 -9.7 C 34.6 km (21.5 mi) 70.0 % 4.48 m/s No
2022/03/27 -13.3 C 35.2 km (21.9 mi) 77.9 % 1.06 m/s No
2022/03/28 -7.5 C 27.4 km (17.0 mi) 77.6 % 0.06 m/s No
2022/03/29 0.2 C 32.0 km (19.9 mi) 56.4 % 1.32 m/s No
2022/03/30 -0.1 C 342 m (0.21 mi) 100 % 0.12 m/s No Visibility reductions related to precipitation and blowing snow.
2022/03/31 -5.0 C 32.9 km (20.4 mi) 91.7 % 4.07 m/s No
2022/04/01 -5.9 C 10.0 km (6.23 mi) 97.1 % 0.69 m/s No
2022/04/02 -1.4 C 29.2 km (18.1 mi) 100 % 0.33 m/s No
2022/04/03 -3.6 C 23.1 km (14.4 mi) 99.3 % 0.13 m/s No
2022/04/04 -3.6 C 10.9 km (6.77 mi) 100 % 0.21 m/s No
2022/04/05 3.2 C 2.50 km (1.55 mi) 92.5 % 1.70 m/s No Visibility Reductions related to rain. Long-duration event next couple days will likely continue to reduce visibility.
2022/04/06 0.6 C 2.80 km (1.74 mi) 100 % 4.02 m/s No Continued rain/snow lowering visibilities
2022/04/07 NA NA NA NA NA Met. Trailer outage, no data
2022/04/08 -1.2 C 44.7 km (27.8 mi) 83.0 % 4.48 m/s No
2022/04/09 -3.0 C 15.6 km (7.88 mi) 100 % 0.06 m/s No
2022/04/10 4.3 C 9.8 km (6.09 mi) 80.0 % 1.71 m/s No
2022/04/11 0.4 C 26.2 km (16.3 mi) 96.9 % 0.07 m/s No
2022/04/12 1.1 C 7.0 km (4.35 mi) 87.0 % 0.30 m/s No
2022/04/13 2.2 C 1.81 km (1.12 mi) 100 % 0.61 m/s No Precipitation related visibility drops.
2022/04/14 -2.6 C 635 m (0.39 mi) 100 % 0.66 m/s No Continued Colorado Low precipitation.
2022/04/15 -9.8 C 321 m (0.20 mi) 93.9 % 4.54 m/s No Blowing snow on backside of Colorado Low.
2022/04/16 -7.5 C 32.6 km (20.3 mi) 85.1 % 2.38 m/s No
2022/04/17 -5.3 C 29.5 km (18.3 mi) 88.0 % 0.23 m/s No
2022/04/18 -4.9 C 225 m (0.14 mi) 100 % 6.92 m/s No Blowing snow/rain.
2022/04/19 -6.4 C 11.3 km (7.02 mi) 97.8 % 0.06 m/s No
2022/04/20 3.5 C 25.9 km (16.1 mi) 75.0 % 1.83 m/s No
2022/04/21 2.1 C 25.0 km (15.5 mi) 83.2 % 2.97 m/s No
2022/04/22

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