National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Weather observations for the past three days for
MANDAN
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.
29 21:15 N 15 10.00 Fair CLR 62.6 60.8 94% 29.56 0.0
29 20:55 N 13 G 22 10.00 A Few Clouds FEW090 62.6 60.8 94% 29.55 0.0
29 20:35 N 15 10.00 Partly Cloudy SCT090 62.6 62.6 100% 29.56 0.0
29 20:15 N 13 G 18 10.00 Partly Cloudy FEW027 FEW033 SCT085 62.6 62.6 100% 29.58 0.0
29 19:55 N 9 G 20 1.50 Thunderstorm in Vicinity Rain BKN026 BKN049 OVC065 62.6 62.6 100% 29.58 0.0
29 19:35 NW 13 G 20 10.00 Thunderstorm in Vicinity SCT060 SCT070 BKN120 66.2 62.6 88% 29.56 0.0
29 19:15 N 12 G 21 10.00 Fair CLR 66.2 62.6 88% 29.53 0.0
29 18:55 N 17 10.00 Fair CLR 66.2 62.6 88% 29.52 0.0
29 18:35 N 18 G 26 10.00 Fair CLR 68 64.4 88% 29.5 0.0
29 18:15 N 22 G 31 10.00 Fair and Breezy CLR 68 64.4 88% 29.52 0.0
29 17:55 NW 17 G 26 10.00 Fair CLR 68 64.4 88% 29.52 0.0
29 17:35 NW 22 G 29 10.00 Fair and Breezy CLR 69.8 66.2 88% 29.52 0.0
29 17:15 NW 23 G 31 10.00 A Few Clouds and Breezy FEW015 FEW021 69.8 66.2 88% 29.52 0.0
29 16:55 NW 21 10.00 Partly Cloudy and Breezy SCT015 BKN021 SCT045 73.4 69.8 89% 29.5 0.0
29 16:35 W 15 G 21 10.00 Mostly Cloudy SCT041 BKN047 BKN055 71.6 69.8 94% 29.5 0.0
29 16:15 NW 9 G 16 10.00 Thunderstorm in Vicinity BKN039 BKN045 BKN070 69.8 68 94% 29.49 0.0
29 15:55 NW 13 G 24 10.00 Thunderstorm in Vicinity FEW005 BKN046 OVC090 64.4 64.4 100% 29.48 0.0
29 15:35 NW 25 G 35 0.75 Thunderstorm Rain and Breezy BKN005 OVC023 68 68 100% 29.47 0.0
29 15:15 E 17 10.00 Thunderstorm in Vicinity FEW031 SCT048 BKN070 77 73.4 89% 78 29.44 0.0
29 14:55 E 14 10.00 Mostly Cloudy FEW026 SCT034 BKN050 78.8 73.4 84% 82 29.47 0.0
29 14:35 E 12 G 17 10.00 Mostly Cloudy SCT028 BKN049 80.6 73.4 79% 85 29.48 0.0
29 14:15 E 14 10.00 Mostly Cloudy BKN027 BKN033 BKN049 80.6 73.4 79% 85 29.49 0.0
29 13:55 E 13 10.00 Mostly Cloudy SCT024 BKN029 BKN033 78.8 73.4 84% 82 29.5 0.0
29 13:35 E 15 10.00 Mostly Cloudy SCT022 BKN030 BKN045 78.8 73.4 84% 82 29.52 0.0
29 13:15 E 12 G 22 10.00 Mostly Cloudy FEW020 SCT026 BKN046 78.8 75.2 89% 82 29.52 0.0
29 12:55 E 13 G 20 10.00 Mostly Cloudy SCT019 SCT026 BKN032 78.8 75.2 89% 82 29.54 0.0
29 12:35 E 13 G 20 10.00 Partly Cloudy FEW021 FEW025 SCT050 78.8 75.2 89% 82 29.55 0.0
29 12:15 E 15 10.00 Partly Cloudy FEW019 SCT032 SCT039 78.8 73.4 84% 82 29.56 0.0
29 11:55 E 13 G 18 10.00 Mostly Cloudy BKN017 BKN022 BKN032 77 75.2 94% 78 29.56 0.0
29 11:35 E 16 G 23 10.00 A Few Clouds FEW016 77 75.2 94% 78 29.55 0.0
29 11:15 E 15 G 22 10.00 Fair CLR 77 73.4 89% 78 29.54 0.0
29 10:55 E 15 10.00 Fair CLR 77 71.6 83% 78 29.54 0.0
29 10:35 NE 13 10.00 Fair CLR 73.4 71.6 94% 29.54 0.0
29 10:15 NE 13 10.00 Fair CLR 71.6 71.6 100% 29.55 0.0
29 09:55 N 14 10.00 Fair CLR 68 68 100% 29.56 0.0
29 09:35 NW 13 10.00 Partly Cloudy FEW028 FEW049 SCT075 66.2 66.2 100% 29.6 0.0
29 09:15 NW 9 10.00 Fair CLR 68 68 100% 29.58 0.0
29 08:55 N 8 10.00 A Few Clouds FEW008 68 68 100% 29.57 0.0
29 08:35 N 10 10.00 Fair CLR 66.2 66.2 100% 29.56 0.0
29 08:15 NE 7 10.00 Fair CLR 66.2 66.2 100% 29.57 0.0
29 07:55 SE 9 10.00 Fair CLR 64.4 64.4 100% 29.59 0.0
29 07:35 E 9 10.00 Fair CLR 64.4 64.4 100% 29.6 0.0
29 07:15 NE 10 G 16 10.00 A Few Clouds FEW100 FEW120 64.4 64.4 100% 29.58 0.0
29 06:55 N 9 10.00 Mostly Cloudy FEW050 SCT080 BKN110 64.4 64.4 100% 29.62 0.0
29 06:35 W 7 10.00 Mostly Cloudy FEW050 SCT065 BKN080 64.4 64.4 100% 29.63 0.0
29 05:55 W 7 10.00 A Few Clouds FEW110 64.4 64.4 100% 29.62 0.0
29 05:35 SW 5 10.00 Fair CLR 64.4 64.4 100% 29.63 0.0
29 05:15 Calm 10.00 Partly Cloudy FEW055 FEW065 SCT110 64.4 64.4 100% 29.61 0.0
29 04:55 Calm 10.00 Mostly Cloudy FEW055 SCT065 BKN120 66.2 66.2 100% 29.6 0.0
29 04:35 NW 3 10.00 A Few Clouds FEW120 66.2 66.2 100% 29.62 0.0
29 04:15 SW 7 10.00 A Few Clouds FEW120 68 68 100% 29.63 0.0
29 03:55 SW 7 10.00 Fair CLR 69.8 69.8 100% 29.63 0.0
29 03:35 S 7 10.00 A Few Clouds FEW090 69.8 69.8 100% 29.62 0.0
29 03:15 SW 12 10.00 Thunderstorm in Vicinity FEW090 69.8 69.8 100% 29.63 0.0
29 02:55 S 8 10.00 Fair CLR 69.8 69.8 100% 29.62 0.0
29 02:15 S 9 10.00 A Few Clouds FEW100 FEW120 71.6 71.6 100% 29.6 0.0
29 01:55 S 9 G 17 10.00 Fair CLR 71.6 71.6 100% 29.6 0.0
29 01:35 S 12 G 17 10.00 Partly Cloudy FEW028 FEW036 SCT110 71.6 71.6 100% 29.6 0.0
29 01:15 S 12 10.00 Fair CLR 71.6 71.6 100% 29.61 0.0
29 00:55 S 12 G 20 10.00 Partly Cloudy FEW024 SCT030 71.6 71.6 100% 29.6 0.0
29 00:35 S 10 10.00 A Few Clouds FEW029 71.6 71.6 100% 29.6 0.0
29 00:15 S 14 10.00 Fair CLR 71.6 71.6 100% 29.6 0.0
28 23:55 S 12 10.00 Fair CLR 73.4 73.4 100% 29.6 0.0
28 23:35 SE 9 10.00 Fair CLR 71.6 71.6 100% 29.59 0.0
28 23:15 SE 12 10.00 Fair CLR 71.6 71.6 100% 29.59 0.0
28 22:55 SE 9 10.00 Fair CLR 71.6 71.6 100% 29.59 0.0
28 22:35 SE 9 10.00 Fair CLR 73.4 71.6 94% 29.58 0.0
28 22:15 SE 9 10.00 Fair CLR 73.4 71.6 94% 29.57 0.0
28 21:55 SE 12 10.00 Fair CLR 73.4 71.6 94% 29.55 0.0
28 21:35 SE 9 10.00 Fair CLR 73.4 69.8 89% 29.55 0.0
28 21:15 SE 9 10.00 Fair CLR 75.2 69.8 83% 75 29.55 0.0
28 20:55 SE 10 G 17 10.00 Fair CLR 75.2 71.6 89% 75 29.55 0.0
28 20:35 SE 14 G 20 10.00 Fair CLR 77 71.6 83% 78 29.56 0.0
28 20:15 SE 12 G 22 10.00 A Few Clouds FEW120 78.8 71.6 79% 82 29.56 0.0
28 19:55 SE 13 10.00 Thunderstorm in Vicinity CLR 78.8 71.6 79% 82 29.56 0.0
28 19:35 SE 12 G 17 10.00 Fair CLR 78.8 71.6 79% 82 29.56 0.0
28 19:15 SE 13 10.00 Fair CLR 80.6 71.6 74% 85 29.56 0.0
28 18:55 E 14 10.00 Fair CLR 80.6 71.6 74% 85 29.56 0.0
28 18:35 E 15 10.00 Fair CLR 80.6 71.6 74% 85 29.57 0.0
28 18:15 E 15 10.00 Fair CLR 80.6 71.6 74% 85 29.58 0.0
28 17:55 SE 13 10.00 Fair CLR 80.6 71.6 74% 85 29.58 0.0
28 17:35 E 13 10.00 Fair CLR 80.6 71.6 74% 85 29.57 0.0
28 17:15 E 12 10.00 Fair CLR 80.6 73.4 79% 85 29.58 0.0
28 16:55 SE 12 10.00 Fair CLR 80.6 71.6 74% 85 29.58 0.0
28 16:35 SE 10 10.00 Fair CLR 80.6 71.6 74% 85 29.59 0.0
28 16:15 SE 8 10.00 Fair CLR 80.6 69.8 70% 84 29.59 0.0
28 15:55 SE 7 10.00 Fair CLR 78.8 68 70% 81 29.6 0.0
28 15:35 S 7 10.00 Fair CLR 78.8 68 70% 81 29.6 0.0
28 15:15 S 8 6.00 Fair with Haze CLR 77 68 74% 79 29.61 0.0
28 14:55 S 8 10.00 Fair CLR 78.8 66.2 65% 81 29.61 0.0
28 14:35 S 9 10.00 A Few Clouds FEW120 77 68 74% 79 29.61 0.0
28 14:15 SW 7 10.00 A Few Clouds FEW120 75.2 68 78% 76 29.62 0.0
28 13:55 SW 8 10.00 Partly Cloudy SCT120 75.2 68 78% 76 29.61 0.0
28 13:35 SW 10 10.00 A Few Clouds FEW120 75.2 68 78% 76 29.61 0.0
28 13:15 SW 8 10.00 Fair CLR 75.2 69.8 83% 75 29.6 0.0
28 12:35 SW 12 10.00 Fair CLR 75.2 69.8 83% 75 29.61 0.0
28 12:15 S 8 10.00 Fair CLR 75.2 69.8 83% 75 29.61 0.0
28 11:55 S 12 10.00 Fair CLR 73.4 69.8 89% 29.6 0.0
28 11:35 S 10 10.00 Fair CLR 71.6 68 88% 29.61 0.0
28 11:15 S 10 10.00 Fair CLR 69.8 68 94% 29.62 0.0
28 10:55 S 10 10.00 Fair CLR 68 68 100% 29.6 0.0
28 10:35 S 14 10.00 Fair CLR 68 68 100% 29.61 0.0
28 10:15 S 14 10.00 A Few Clouds FEW013 68 68 100% 29.61 0.0
28 09:55 S 13 10.00 Partly Cloudy SCT012 SCT018 66.2 66.2 100% 29.6 0.0
28 09:35 S 10 10.00 Overcast BKN013 OVC018 64.4 64.4 100% 29.62 0.0
28 09:15 S 15 10.00 Overcast OVC012 66.2 66.2 100% 29.59 0.0
28 08:55 SW 7 10.00 Overcast BKN008 OVC012 64.4 64.4 100% 29.6 0.0
28 08:35 SE 5 10.00 Overcast OVC006 62.6 62.6 100% 29.59 0.0
28 08:15 SE 16 G 25 10.00 Overcast OVC004 62.6 62.6 100% 29.56 0.0
28 07:55 SE 16 G 23 10.00 Overcast OVC004 60.8 60.8 100% 29.56 0.0
28 07:35 SE 20 G 30 10.00 Overcast OVC004 60.8 60.8 100% 29.56 0.0
28 07:15 SE 17 10.00 Mostly Cloudy SCT005 BKN009 60.8 60.8 100% 29.56 0.0
28 06:55 SE 15 10.00 Mostly Cloudy BKN005 60.8 60.8 100% 29.56 0.0
28 06:35 SE 8 10.00 Overcast OVC006 60.8 60.8 100% 29.58 0.0
28 05:55 SE 14 10.00 Fair CLR 59 59 100% 29.56 0.0
28 05:15 SE 13 G 18 10.00 Fair CLR 59 59 100% 29.55 0.0
28 04:55 SE 13 G 18 10.00 Fair CLR 57.2 57.2 100% 29.55 0.0
28 04:35 SE 12 10.00 Fair CLR 57.2 57.2 100% 29.55 0.0
28 04:15 SE 13 10.00 Fair CLR 57.2 57.2 100% 29.56 0.0
28 03:55 SE 9 10.00 Fair CLR 57.2 57.2 100% 29.57 0.0
28 03:35 SE 8 10.00 Fair CLR 57.2 57.2 100% 29.59 0.0
28 03:15 SE 9 10.00 Fair CLR 57.2 57.2 100% 29.58 0.0
28 02:55 SE 8 10.00 Fair CLR 57.2 57.2 100% 29.59 0.0
28 02:35 SE 7 10.00 Fair CLR 57.2 57.2 100% 29.59 0.0
28 02:15 SE 8 10.00 Fair CLR 57.2 57.2 100% 29.59 0.0
28 01:35 E 9 10.00 Fair CLR 57.2 57.2 100% 29.57 0.0
28 01:15 E 8 10.00 Fair CLR 57.2 57.2 100% 29.59 0.0
28 00:55 E 9 G 20 10.00 Fair CLR 57.2 57.2 100% 29.62 0.0
28 00:35 E 9 10.00 Partly Cloudy SCT016 57.2 57.2 100% 29.63 0.0
28 00:15 SE 6 G 14 10.00 Thunderstorm in Vicinity BKN016 BKN041 OVC070 57.2 57.2 100% 29.6 0.0
27 23:55 N 10 G 28 10.00 Thunderstorm in Vicinity Rain FEW008 SCT030 BKN043 55.4 55.4 100% 29.61 0.0
27 23:35 E 14 7.00 Thunderstorm in Vicinity Rain BKN028 BKN045 OVC070 55.4 55.4 100% 29.63 0.0
27 23:15 NE 8 2.50 Thunderstorm Rain SCT004 BKN026 OVC030 55.4 55.4 100% 29.71 0.0
27 22:55 W 43 1.50 Thunderstorm in Vicinity Rain and Windy SCT007 BKN019 OVC031 60.8 59 94% 29.69 0.0
27 22:35 SE 15 10.00 Thunderstorm in Vicinity BKN028 OVC035 73.4 69.8 89% 29.62 0.0
27 22:15 SE 17 G 25 10.00 Overcast SCT029 BKN035 OVC043 75.2 69.8 83% 75 29.61 0.0
27 21:55 SE 23 G 30 10.00 Overcast and Breezy SCT034 BKN042 OVC048 75.2 69.8 83% 75 29.58 0.0
27 21:35 SE 20 G 28 10.00 Overcast SCT035 BKN041 OVC055 75.2 69.8 83% 75 29.57 0.0
27 21:15 SE 21 10.00 Overcast and Breezy OVC034 75.2 69.8 83% 75 29.57 0.0
27 20:55 SE 16 G 24 10.00 Overcast OVC034 75.2 69.8 83% 75 29.58 0.0
27 20:35 SE 15 10.00 Overcast OVC033 75.2 69.8 83% 75 29.55 0.0
27 20:15 SE 16 10.00 Overcast OVC032 75.2 69.8 83% 75 29.57 0.0
27 19:55 SE 16 G 23 10.00 Overcast OVC032 75.2 69.8 83% 75 29.57 0.0
27 19:35 SE 13 G 21 10.00 Overcast SCT034 BKN047 OVC060 75.2 71.6 89% 75 29.6 0.0
27 19:15 SE 18 10.00 Overcast FEW036 BKN047 OVC055 75.2 71.6 89% 75 29.6 0.0
27 18:55 E 20 10.00 Mostly Cloudy FEW028 FEW035 BKN048 75.2 71.6 89% 75 29.6 0.0
27 18:35 SE 15 10.00 Overcast FEW031 SCT036 OVC046 75.2 71.6 89% 75 29.61 0.0
27 18:15 SE 10 G 23 10.00 Overcast SCT027 BKN038 OVC045 73.4 71.6 94% 29.62 0.0
27 17:55 SE 17 G 25 10.00 Overcast BKN028 BKN033 OVC043 75.2 71.6 89% 75 29.62 0.0
27 17:35 SE 14 G 21 10.00 Overcast OVC027 75.2 71.6 89% 75 29.62 0.0
27 17:15 SE 15 G 22 10.00 Overcast OVC026 75.2 71.6 89% 75 29.63 0.0
27 16:55 SE 18 G 25 10.00 Overcast BKN025 OVC033 73.4 71.6 94% 29.63 0.0
27 16:35 SE 15 G 24 10.00 Overcast BKN023 BKN030 OVC034 75.2 71.6 89% 75 29.63 0.0
27 16:15 SE 23 G 29 10.00 Overcast and Breezy BKN026 OVC032 75.2 71.6 89% 75 29.63 0.0
27 15:55 SE 21 G 29 10.00 Overcast and Breezy SCT023 OVC028 75.2 71.6 89% 75 29.63 0.0
27 15:35 SE 17 G 24 10.00 Overcast BKN023 OVC031 75.2 71.6 89% 75 29.64 0.0
27 15:15 SE 21 G 30 10.00 Overcast and Breezy OVC023 75.2 71.6 89% 75 29.63 0.0
27 14:55 SE 18 G 28 10.00 Overcast BKN020 BKN024 OVC032 75.2 71.6 89% 75 29.63 0.0
27 14:35 SE 22 10.00 Overcast and Breezy SCT020 OVC032 75.2 71.6 89% 75 29.64 0.0
27 14:15 SE 16 G 25 10.00 Overcast FEW018 SCT025 OVC032 73.4 71.6 94% 29.64 0.0
27 13:55 SE 16 10.00 Overcast SCT018 OVC028 71.6 71.6 100% 29.65 0.0
27 13:35 SE 16 G 24 10.00 Overcast BKN017 OVC025 71.6 71.6 100% 29.66 0.0
27 13:15 SE 16 G 26 10.00 Overcast OVC016 71.6 71.6 100% 29.66 0.0
27 12:55 S 20 G 28 10.00 Overcast OVC018 71.6 69.8 94% 29.66 0.0
27 12:35 SE 21 G 26 10.00 Overcast and Breezy BKN017 OVC022 73.4 71.6 94% 29.66 0.0
27 12:15 SE 21 G 28 10.00 Overcast and Breezy OVC015 71.6 69.8 94% 29.67 0.0
27 11:55 SE 18 10.00 Overcast OVC014 69.8 69.8 100% 29.67 0.0
27 11:35 SE 18 10.00 Overcast OVC013 69.8 69.8 100% 29.67 0.0
27 11:15 SE 20 G 29 10.00 Overcast OVC013 69.8 69.8 100% 29.67 0.0
27 10:55 SE 20 G 28 10.00 Overcast OVC013 68 68 100% 29.67 0.0
27 10:35 SE 20 10.00 Overcast OVC015 68 68 100% 29.69 0.0
27 10:15 SE 16 G 23 10.00 Overcast OVC016 68 68 100% 29.7 0.0
27 09:55 SE 16 10.00 Overcast BKN012 OVC018 66.2 66.2 100% 29.71 0.0
27 09:35 E 12 10.00 Overcast OVC016 66.2 66.2 100% 29.73 0.0
27 09:15 SE 13 10.00 Overcast OVC017 66.2 66.2 100% 29.73 0.0
27 08:55 SE 9 G 16 10.00 Overcast OVC016 66.2 66.2 100% 29.74 0.0
27 08:35 SE 10 10.00 Overcast OVC015 66.2 66.2 100% 29.74 0.0
27 08:15 SE 9 10.00 Overcast FEW013 OVC019 66.2 66.2 100% 29.75 0.0
27 07:35 SE 8 10.00 Overcast FEW013 OVC018 64.4 64.4 100% 29.76 0.0
27 07:15 SE 6 10.00 Overcast OVC018 64.4 64.4 100% 29.75 0.0
27 06:55 Calm 10.00 Overcast OVC017 64.4 64.4 100% 29.75 0.0
27 06:35 S 5 10.00 A Few Clouds FEW017 64.4 64.4 100% 29.74 0.0
27 06:15 SE 10 10.00 A Few Clouds FEW013 FEW055 64.4 64.4 100% 29.72 0.0
27 05:55 SE 12 G 20 10.00 Mostly Cloudy BKN014 BKN055 64.4 64.4 100% 29.71 0.0
27 05:15 E 15 10.00 Partly Cloudy SCT016 62.6 62.6 100% 29.71 0.0
27 04:55 E 10 10.00 A Few Clouds FEW018 62.6 62.6 100% 29.72 0.0
27 04:35 E 8 10.00 Fair CLR 62.6 62.6 100% 29.73 0.0
27 04:15 E 13 10.00 Fair CLR 62.6 62.6 100% 29.71 0.0
27 03:55 E 10 10.00 Fair CLR 62.6 62.6 100% 29.73 0.0
27 03:35 E 10 10.00 Fair CLR 62.6 62.6 100% 29.74 0.0
27 03:15 E 13 10.00 A Few Clouds FEW020 FEW120 62.6 62.6 100% 29.74 0.0
27 02:55 E 14 G 20 10.00 A Few Clouds FEW120 62.6 62.6 100% 29.75 0.0
27 02:35 E 15 10.00 Mostly Cloudy SCT038 BKN120 62.6 62.6 100% 29.75 0.0
27 02:15 E 13 10.00 Mostly Cloudy BKN038 BKN050 BKN090 62.6 62.6 100% 29.78 0.0
27 01:55 E 13 10.00 Overcast FEW035 BKN041 OVC080 62.6 62.6 100% 29.79 0.0
27 01:35 E 13 10.00 Overcast BKN040 OVC075 62.6 62.6 100% 29.8 0.0
27 01:15 E 13 10.00 Mostly Cloudy BKN040 62.6 62.6 100% 29.81 0.0
27 00:55 SE 10 G 16 10.00 Fair CLR 62.6 62.6 100% 29.82 0.0
27 00:35 SE 12 G 18 10.00 A Few Clouds FEW037 FEW048 62.6 62.6 100% 29.83 0.0
27 00:15 SE 12 10.00 Mostly Cloudy SCT033 BKN039 62.6 62.6 100% 29.84 0.0
26 23:55 SE 13 10.00 Overcast BKN034 OVC039 62.6 62.6 100% 29.84 0.0
26 23:15 E 12 10.00 Overcast OVC042 64.4 64.4 100% 29.85 0.0
26 22:35 SE 9 10.00 Overcast BKN028 OVC046 64.4 64.4 100% 29.86 0.0
26 22:15 SE 9 10.00 Overcast OVC047 64.4 64.4 100% 29.86 0.0
26 21:55 SE 9 10.00 Overcast OVC047 64.4 64.4 100% 29.84 0.0
26 21:35 SE 10 10.00 Overcast FEW037 OVC047 66.2 64.4 94% 29.85 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)