National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Weather observations for the past three days for
Macomb Municipal Airport
Imperial (Metric)
Date Time (cdt) Wind (mph) Vis. (mi.) Weather Sky Cond. Temperature (ºF) Relative Humidity Wind Chill (°F) Heat Index (°F) Pressure Precipitation (in)
Air Dwpt 6 hour altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
12 14:15 W 12 10.00 Fair CLR 78.4 59.9 53% 80 30.02 0.0
12 13:55 SW 10 10.00 Fair CLR 78.3 59.7 53% 80 30.03 0.0
12 13:35 W 9 10.00 Fair CLR 77.9 58.8 52% 79 30.03 0.0
12 13:15 SW 7 10.00 Fair CLR 77.4 59.9 55% 79 30.03 0.0
12 12:55 Calm 10.00 Fair CLR 77 60.3 77 61.5 56% 79 30.03 0.0
12 12:35 Calm 10.00 Fair CLR 76.3 59.9 57% 78 30.03 0.0
12 12:15 Calm 10.00 Fair CLR 76.1 60.4 58% 78 30.03 0.0
12 11:55 Calm 10.00 Fair CLR 75.9 58.8 56% 78 30.04 0.0
12 11:35 Calm 10.00 Fair CLR 75.2 59.2 58% 78 30.04 0.0
12 11:15 Calm 10.00 Fair CLR 75 59 58% 77 30.04 0.0
12 10:55 W 3 10.00 Fair CLR 74.3 59 59% 30.04 0.0
12 10:15 Calm 10.00 Fair CLR 72.7 60.4 66% 30.03 0.0
12 09:55 Calm 10.00 Fair CLR 72.1 61 68% 30.03 0.0
12 09:35 Calm 10.00 Fair CLR 71.1 60.8 70% 30.03 0.0
12 09:15 Calm 10.00 Fair CLR 70.2 60.4 71% 30.03 0.0
12 08:55 Calm 10.00 Fair CLR 69.1 61.3 76% 30.03 0.0
12 08:35 Calm 10.00 Fair CLR 68 60.6 77% 30.02 0.0
12 08:15 Calm 10.00 Fair CLR 66.4 59.5 79% 30.02 0.0
12 07:55 Calm 10.00 Fair CLR 65.7 61.2 85% 30.02 0.0
12 07:35 Calm 10.00 Fair CLR 64 60.4 88% 30.01 0.0
12 07:15 Calm 10.00 Fair CLR 62.6 60.3 92% 30 0.0
12 06:55 Calm 10.00 Fair CLR 61.2 59.9 62.6 57.2 96% 30 0.0
12 06:35 Calm 10.00 Fair CLR 59.9 59.2 97% 29.99 0.0
12 06:15 Calm 10.00 Fair CLR 58.6 58.1 98% 29.98 0.0
12 05:55 Calm 10.00 Fair CLR 57.4 57 99% 29.98 0.0
12 05:35 Calm 10.00 Fair CLR 57.4 57.2 99% 29.98 0.0
12 05:15 Calm 10.00 Fair CLR 57.6 57.2 99% 29.97 0.0
12 04:55 Calm 10.00 Fair CLR 57.2 57.2 100% 29.97 0.0
12 04:15 Calm 10.00 Fair CLR 57.7 57.7 100% 29.97 0.0
12 03:55 Calm 10.00 Fair CLR 57.6 57.6 100% 29.96 0.0
12 03:35 Calm 10.00 Fair CLR 58.1 58.1 100% 29.96 0.0
12 03:15 Calm 10.00 Fair CLR 58.8 58.3 98% 29.96 0.0
12 02:55 Calm 10.00 Fair CLR 59.2 58.5 97% 29.96 0.0
12 02:35 Calm 10.00 Fair CLR 59 58.6 99% 29.95 0.0
12 02:15 Calm 10.00 Fair CLR 59.2 59 99% 29.95 0.0
12 01:55 Calm 10.00 Fair CLR 60.1 59.9 99% 29.94 0.0
12 01:35 Calm 10.00 Fair CLR 60.3 59.9 99% 29.93 0.0
12 01:15 Calm 10.00 Fair CLR 60.8 59.9 97% 29.93 0.0
12 00:55 Calm 10.00 Fair CLR 62.6 60.3 72 62.6 92% 29.93 0.0
12 00:35 Calm 10.00 Fair CLR 63.7 60.1 88% 29.92 0.0
12 00:15 Calm 10.00 Fair CLR 64.8 61.2 88% 29.93 0.0
11 23:55 Calm 10.00 Fair CLR 65.7 63.5 93% 29.92 0.0
11 23:35 Calm 10.00 Fair CLR 67.1 63 87% 29.9 0.0
11 23:15 Calm 10.00 Partly Cloudy SCT048 69.1 62.1 78% 29.9 0.0
11 22:55 NW 10 10.00 Partly Cloudy SCT029 SCT035 SCT041 68.9 66.7 93% 29.88 0.0
11 22:35 Calm 10.00 Partly Cloudy SCT033 SCT041 67.5 67.5 100% 29.87 0.0
11 22:15 Calm 10.00 Partly Cloudy SCT041 67.1 67.1 100% 29.85 0.0
11 21:55 Calm 10.00 Fair CLR 67.6 67.5 99% 29.83 0.0
11 21:35 Calm 10.00 Fair CLR 68.4 68 99% 29.83 0.0
11 21:15 Calm 10.00 Fair CLR 69.3 68 96% 29.82 0.0
11 20:55 Calm 10.00 Fair CLR 70.2 68.2 93% 29.81 0.0
11 20:35 W 10 10.00 Fair CLR 71.2 68 90% 29.8 0.0
11 20:15 Calm 10.00 Partly Cloudy SCT110 71.6 68.9 91% 29.79 0.0
11 19:55 W 10 G 16 10.00 Partly Cloudy SCT110 72 69.1 91% 29.78 0.0
11 19:35 NW 13 G 17 10.00 Partly Cloudy SCT027 SCT044 71.8 69.8 94% 29.76 0.0
11 19:15 W 12 10.00 Mostly Cloudy SCT021 BKN027 BKN032 71.8 69.4 92% 29.73 0.0
11 18:55 W 13 G 17 10.00 Mostly Cloudy BKN021 BKN027 BKN090 71.2 69.3 85.1 71.1 94% 29.72 0.0 0.26
11 18:35 W 12 10.00 Partly Cloudy SCT027 SCT060 SCT070 71.6 69.8 94% 29.71 0.0
11 18:15 SW 14 G 20 10.00 Mostly Cloudy SCT060 SCT075 BKN100 72.9 71.4 95% 29.69 0.0
11 17:55 SW 17 G 29 10.00 Light Rain SCT036 SCT050 BKN080 73.9 72.7 96% 29.64 0.0 0.05
11 17:35 SW 20 G 24 10.00 Light Rain BKN036 BKN048 OVC100 74.7 72.9 94% 29.66 0.0 0.04
11 17:15 S 10 10.00 Light Rain SCT013 SCT025 BKN070 74.5 73.8 98% 29.66 0.0 0.01
11 16:55 NW 20 G 41 1.75 Rain SCT015 BKN025 OVC037 73.2 71.6 95% 29.68 0.0 0.21
11 16:35 W 3 G 17 10.00 Light Rain SCT048 BKN055 OVC100 82 77.4 86% 90 29.68 0.0
11 16:15 S 15 G 23 10.00 Overcast BKN050 OVC070 83.3 77.7 83% 93 29.65 0.0
11 15:55 S 16 G 23 10.00 Mostly Cloudy SCT050 BKN070 BKN080 84.2 77.9 81% 95 29.65 0.0
11 15:35 S 14 G 26 10.00 Mostly Cloudy SCT035 BKN050 BKN065 84.7 79.2 83% 98 29.66 0.0
11 15:15 S 16 G 26 10.00 Overcast SCT028 BKN036 OVC090 84.2 79.7 86% 97 29.67 0.0
11 14:55 S 15 G 21 10.00 Overcast SCT023 BKN028 OVC034 83.1 78.8 87% 94 29.69 0.0
11 14:35 S 17 G 22 10.00 Overcast BKN020 OVC026 82.9 78.3 86% 93 29.7 0.0
11 14:15 E 7 G 16 10.00 Overcast BKN020 OVC025 77.9 75.4 92% 80 29.71 0.0
11 13:35 SE 13 G 16 10.00 Overcast OVC015 75.7 73.6 93% 75 29.74 0.0
11 13:15 E 10 G 16 10.00 Overcast OVC013 73.4 72 95% 29.75 0.0
11 12:55 E 14 G 17 10.00 Light Rain OVC013 70.9 70.3 74.7 67.6 98% 29.76 0.0 0.01
11 12:35 NE 15 G 18 10.00 Light Rain BKN015 OVC055 72.9 71.8 96% 29.8 0.0
11 12:15 Calm 10.00 Overcast OVC055 73.9 72.9 96% 29.82 0.0
11 11:55 Calm 10.00 Mostly Cloudy BKN065 BKN070 73.9 72.5 95% 29.78 0.0
11 11:35 Calm 10.00 Fair CLR 73.8 72.1 95% 29.78 0.0
11 11:15 Calm 10.00 Fair CLR 73.8 71.8 94% 29.78 0.0
11 10:55 S 9 10.00 Partly Cloudy SCT070 73.9 71.4 92% 29.8 0.0
11 10:35 S 12 G 16 10.00 Fair CLR 74.3 71.2 90% 29.79 0.0
11 10:15 S 9 10.00 Fair CLR 74.3 71.6 91% 29.77 0.0
11 09:55 S 15 10.00 Fair CLR 74.3 71.2 90% 29.77 0.0 0.01
11 09:35 S 12 G 20 10.00 Partly Cloudy SCT050 74.7 70.9 88% 29.78 0.0
11 09:15 S 13 10.00 Partly Cloudy SCT036 SCT050 74.3 70.3 88% 29.79 0.0
11 08:55 S 16 10.00 Mostly Cloudy SCT042 SCT049 BKN060 73.4 70 89% 29.79 0.0
11 08:35 S 12 10.00 Mostly Cloudy BKN035 BKN043 72.1 69.3 91% 29.79 0.0
11 08:15 S 9 10.00 Mostly Cloudy BKN033 71.6 69.1 92% 29.79 0.0
11 07:55 S 3 10.00 Mostly Cloudy BKN033 BKN060 70.7 69.4 96% 29.78 0.0 0.01
11 07:35 Calm 10.00 Mostly Cloudy BKN035 69.3 68.5 98% 29.79 0.0
11 07:15 Calm 10.00 Partly Cloudy SCT037 SCT049 SCT060 68 68 100% 29.79 0.0
11 06:55 S 7 10.00 Overcast SCT005 BKN037 OVC065 67.6 67.6 67.6 66.7 100% 29.8 0.0 0.04
11 06:35 S 10 10.00 Mostly Cloudy SCT005 BKN036 BKN041 67.1 67.1 100% 29.78 0.0
11 06:15 S 10 10.00 Mostly Cloudy BKN005 BKN041 66.7 66.7 100% 29.78 0.0
11 05:55 S 8 10.00 Overcast OVC005 66.7 66.7 100% 29.78 0.0
11 05:35 S 14 10.00 Overcast OVC005 67.1 67.1 100% 29.79 0.0
11 05:15 SE 12 10.00 Overcast OVC005 67.1 67.1 100% 29.8 0.0
11 04:55 S 10 10.00 Overcast OVC005 67.1 67.1 100% 29.8 0.0
11 04:35 Calm 10.00 Overcast OVC005 67.1 67.1 100% 29.8 0.0
11 04:15 S 14 G 17 10.00 Overcast OVC005 67.1 67.1 100% 29.81 0.0
11 03:55 Calm 10.00 Overcast OVC005 66.9 66.9 100% 29.81 0.0 0.04
11 03:35 Calm 10.00 Overcast OVC005 66.9 66.9 100% 29.79 0.0
11 03:15 S 10 10.00 Mostly Cloudy BKN005 67.1 67.1 100% 29.79 0.0
11 02:55 Calm 10.00 Partly Cloudy SCT005 67.1 67.1 100% 29.79 0.0
11 02:35 Calm 10.00 Partly Cloudy SCT006 SCT009 SCT040 67.1 67.1 100% 29.8 0.0
11 02:15 SW 7 G 16 10.00 Light Rain BKN006 BKN038 OVC100 67.1 67.1 100% 29.82 0.0
11 01:55 SE 13 G 18 10.00 Light Rain SCT070 OVC100 66.7 66.7 100% 29.75 0.0 0.04
11 01:35 Calm 10.00 Rain SCT050 SCT070 OVC100 66.7 66.7 100% 29.79 0.0 0.03
11 01:15 Calm 10.00 Rain SCT070 OVC100 67.1 67.1 100% 29.81 0.0 0.01
11 00:55 Calm 7.00 Light Rain SCT070 OVC090 67.1 67.1 77 67.1 100% 29.8 0.0 0.09 2.98
11 00:35 Calm 7.00 Rain OVC100 67.1 67.1 100% 29.8 0.0 0.05
11 00:15 Calm 10.00 Light Rain BKN100 67.1 67.1 100% 29.78 0.0
10 23:55 Calm 10.00 Light Rain SCT070 SCT090 SCT110 67.1 67.1 100% 29.8 0.0 0.11
10 23:35 SW 16 G 23 7.00 Light Rain SCT055 BKN075 OVC090 67.1 67.1 100% 29.81 0.0 0.1
10 23:15 SW 14 G 20 7.00 Light Rain SCT065 SCT080 OVC090 68 68 100% 29.8 0.0 0.04
10 22:55 Calm 10.00 Light Rain SCT070 OVC090 68.4 68.4 100% 29.77 0.0 0.11
10 22:35 SW 12 G 21 7.00 Light Rain SCT049 BKN065 OVC095 68.4 68.4 100% 29.8 0.0 0.1
10 22:15 W 15 G 18 7.00 Light Rain SCT016 BKN039 OVC065 68.9 68.9 100% 29.8 0.0 0.06
10 21:55 W 13 G 28 1.50 Rain BKN013 OVC020 68.9 68.9 100% 29.78 0.0 2.4 2.62
10 21:35 W 5 G 14 1.25 Heavy Rain BKN007 OVC014 68.4 68.4 100% 29.72 0.0 1.74
10 21:15 W 14 G 23 1.00 Heavy Rain OVC010 68 68 100% 29.77 0.0 0.87
10 20:55 W 33 G 45 3.00 Heavy Rain and Windy SCT012 BKN046 OVC065 72 71.1 97% 29.78 0.0 0.15
10 20:35 Calm 7.00 Light Rain SCT046 BKN050 OVC065 72.7 71.4 96% 29.71 0.0 0.01
10 20:15 N 10 G 21 10.00 Light Rain SCT050 BKN060 OVC085 73 70.3 91% 29.73 0.0
10 19:55 Calm 7.00 Light Rain SCT048 SCT050 BKN085 75.4 73 92% 74 29.73 0.0 0.02
10 19:35 SE 7 10.00 Partly Cloudy SCT090 76.5 72.5 88% 77 29.72 0.0
10 19:15 Calm 10.00 Mostly Cloudy SCT070 BKN080 76.5 72.3 87% 77 29.73 0.0
10 18:55 Calm 10.00 Mostly Cloudy SCT070 BKN085 BKN120 77.2 71.8 82.2 70.2 84% 79 29.74 0.0 0.28
10 18:35 Calm 10.00 Mostly Cloudy SCT085 BKN100 BKN120 77 72 85% 78 29.75 0.0
10 18:15 Calm 10.00 Mostly Cloudy SCT070 BKN100 77.4 71.6 83% 79 29.74 0.0
10 17:55 Calm 10.00 Overcast OVC080 77.4 72.3 85% 79 29.74 0.0
10 17:35 Calm 10.00 Overcast OVC080 78.1 72.9 84% 81 29.74 0.0
10 17:15 Calm 10.00 Mostly Cloudy BKN080 78.3 71.8 81% 81 29.74 0.0
10 16:55 Calm 10.00 Fair CLR 76.6 72.5 87% 78 29.71 0.0
10 16:35 Calm 10.00 Fair CLR 72.3 70.2 93% 29.7 0.0
10 16:15 Calm 10.00 Partly Cloudy SCT075 SCT090 70.9 69.4 95% 29.72 0.0
10 15:55 Calm 10.00 Light Rain SCT050 BKN070 OVC085 70.7 69.1 95% 29.75 0.0 0.02 0.28
10 15:35 Calm 5.00 Light Rain SCT075 OVC095 70.7 69.3 95% 29.77 0.0 0.02
10 15:15 SW 8 10.00 Light Rain OVC095 70.5 69.6 97% 29.78 0.0 0.01
10 14:55 S 15 G 22 7.00 Light Rain OVC095 70.2 70 99% 29.78 0.0 0.09
10 14:35 S 15 G 20 7.00 Light Rain SCT075 OVC095 70.2 70.2 100% 29.79 0.0 0.05
10 13:55 SW 8 10.00 Light Rain SCT050 SCT075 OVC095 70.9 70.3 98% 29.8 0.0 0.17
10 13:35 SW 10 5.00 Light Rain SCT018 BKN055 OVC095 71.1 70.7 99% 29.82 0.0 0.15
10 13:15 W 17 G 35 2.50 Rain SCT020 BKN032 OVC044 72.1 70.5 95% 29.83 0.0 0.09
10 12:55 SW 15 G 20 10.00 Overcast BKN032 OVC043 82.4 74.5 87.4 77.4 77% 89 29.82 0.0
10 12:35 SW 16 10.00 Overcast BKN034 OVC041 83.3 74.5 75% 90 29.81 0.0
10 12:15 SW 20 G 30 10.00 Mostly Cloudy SCT035 BKN041 86.2 74.7 69% 95 29.8 0.0
10 11:55 SW 17 G 26 10.00 Partly Cloudy SCT036 86.5 74.7 68% 95 29.8 0.0
10 11:35 SW 17 G 24 10.00 Partly Cloudy SCT030 SCT070 85.8 74.5 69% 94 29.8 0.0
10 11:15 SW 15 10.00 Partly Cloudy SCT030 SCT070 86.9 75.6 69% 97 29.8 0.0
10 10:55 SW 15 G 22 10.00 Fair CLR 85.8 74.5 69% 94 29.79 0.0
10 10:35 SW 15 G 24 10.00 Fair CLR 85.3 74.5 70% 93 29.79 0.0
10 10:15 SW 16 G 21 10.00 Fair CLR 84.7 74.5 71% 93 29.8 0.0
10 09:55 SW 16 G 23 10.00 Fair CLR 83.7 74.1 73% 91 29.81 0.0
10 09:35 SW 16 G 22 10.00 Fair CLR 82.9 73.9 74% 89 29.81 0.0
10 09:15 SW 18 G 23 10.00 Fair CLR 81.3 73.6 77% 87 29.82 0.0
10 08:55 SW 14 G 20 10.00 Fair CLR 80.8 73.6 79% 86 29.83 0.0
10 08:35 SW 15 G 23 10.00 Fair CLR 81 73.8 79% 86 29.83 0.0
10 08:15 SW 14 G 22 10.00 Fair CLR 79.9 73.8 82% 84 29.84 0.0
10 07:55 SW 15 G 22 10.00 Fair CLR 79.2 73.9 84% 83 29.84 0.0
10 07:35 SW 14 10.00 Fair CLR 78.8 73.8 85% 82 29.84 0.0
10 07:15 SW 12 G 18 10.00 Fair CLR 77.9 73.8 87% 80 29.84 0.0
10 06:55 SW 13 7.00 Fair CLR 77.4 73.8 77.4 75.6 89% 79 29.83 0.0
10 06:35 S 9 10.00 Fair CLR 76.6 73.9 91% 77 29.83 0.0
10 06:15 S 10 10.00 Fair CLR 76.1 73.8 93% 76 29.83 0.0
10 05:35 SW 10 G 16 10.00 Fair CLR 76.3 73.6 91% 76 29.84 0.0
10 05:15 SW 10 G 17 10.00 Fair CLR 76.3 73.8 92% 76 29.84 0.0
10 04:55 SW 10 10.00 Fair CLR 76.1 73.9 93% 76 29.83 0.0
10 04:35 S 10 10.00 Fair CLR 76.3 73.8 92% 76 29.83 0.0
10 04:15 S 10 10.00 Fair CLR 76.3 73.6 91% 76 29.83 0.0
10 03:55 S 9 G 16 10.00 Fair CLR 76.5 73.6 91% 77 29.84 0.0
10 03:15 SW 9 10.00 Fair CLR 76.6 73.6 90% 77 29.85 0.0
10 02:55 S 8 10.00 Fair CLR 77 73.6 89% 78 29.85 0.0
10 02:35 Calm 10.00 Fair CLR 76.8 73.4 89% 78 29.86 0.0
10 02:15 Calm 10.00 Fair CLR 75.6 72.7 91% 75 29.87 0.0
10 01:55 Calm 10.00 Fair CLR 75.9 72.5 89% 76 29.86 0.0
10 01:35 Calm 10.00 Fair CLR 76.3 72.5 88% 77 29.87 0.0
10 01:15 Calm 10.00 Fair CLR 77 72.5 86% 78 29.88 0.0
10 00:55 Calm 10.00 Fair CLR 75.6 73 86.2 75.6 92% 75 29.88 0.0
10 00:35 Calm 10.00 Fair CLR 77 73.2 88% 78 29.88 0.0
10 00:15 Calm 10.00 Fair CLR 77.4 73.4 88% 79 29.89 0.0
09 23:55 Calm 10.00 Fair CLR 77.9 73.6 87% 80 29.89 0.0
09 23:35 Calm 10.00 Fair CLR 78.1 73.6 86% 81 29.89 0.0
09 23:15 Calm 10.00 Fair CLR 78.3 73.8 86% 81 29.89 0.0
09 22:55 Calm 10.00 Fair CLR 78.8 73.8 85% 82 29.89 0.0
09 22:35 Calm 10.00 Fair CLR 77.9 73.9 88% 80 29.89 0.0
09 22:15 Calm 10.00 Fair CLR 77.4 73.9 89% 79 29.88 0.0
09 21:55 Calm 10.00 Fair CLR 76.6 74.3 93% 77 29.88 0.0
09 21:35 Calm 10.00 Fair CLR 76.1 74.3 94% 76 29.88 0.0
09 21:15 Calm 10.00 Fair CLR 76.6 74.7 94% 77 29.87 0.0
09 20:55 Calm 10.00 Fair CLR 77.9 74.7 90% 80 29.87 0.0
09 20:35 Calm 10.00 Fair CLR 79.7 74.3 84% 84 29.88 0.0
09 20:15 Calm 10.00 Fair CLR 81.9 73.6 76% 88 29.88 0.0
09 19:55 Calm 10.00 Fair CLR 83.5 73.4 72% 90 29.88 0.0
09 19:35 Calm 10.00 Fair CLR 84.6 73.9 71% 92 29.88 0.0
09 19:15 S 3 10.00 Fair CLR 85.6 73.4 67% 93 29.89 0.0
09 18:55 S 10 10.00 Fair CLR 86.2 73.4 88 79.3 66% 94 29.88 0.0
09 18:35 S 7 10.00 Fair CLR 86.9 73.2 64% 94 29.88 0.0
09 18:15 SW 7 10.00 Fair CLR 87.3 73 63% 95 29.89 0.0
09 17:55 Calm 10.00 Fair CLR 87.3 73.4 64% 95 29.89 0.0
09 17:35 Calm 10.00 Fair CLR 87.8 72.9 61% 95 29.89 0.0
09 17:15 SW 9 10.00 Fair CLR 87.8 73.2 62% 96 29.89 0.0
09 16:55 Calm 10.00 Fair CLR 87.8 73.8 63% 96 29.9 0.0
09 16:35 SW 5 10.00 Fair CLR 87.4 73 62% 95 29.91 0.0
09 16:15 W 8 10.00 Fair CLR 87.6 74.5 65% 97 29.92 0.0
09 15:55 SW 6 10.00 Fair CLR 87.1 74.5 66% 96 29.93 0.0
09 15:35 SW 8 10.00 Fair CLR 86.9 73.9 65% 95 29.93 0.0
09 15:15 SW 8 10.00 Fair CLR 86.5 73.9 66% 95 29.93 0.0
09 14:55 W 9 10.00 Fair CLR 85.5 74.7 70% 94 29.92 0.0
09 14:35 SW 6 10.00 Fair CLR 84.9 72.7 67% 91 29.93 0.0
Date Time (cdt) Wind (mph) Vis. (mi.) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°F) Heat Index (°F) altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºF) Pressure Precipitation (in)