USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2026-01-12/12 UTC MPAS cell scale: 2.4 km FCST UTC UTC T Td Altim Spd Gust Dir Grid VVV RH1RH2RH3 T1T2T3 ACCUM HR DAY HR (C) (C) (in Hg)(kts)(kts)(deg)(deg) (*) (% wrt water) (C) (*) 0 12 12 -15.0 -17.6 28.66 10 20 169 7 000 62 48 35 -9 -9 -9 000 1 12 13 -14.8 -16.3 28.66 12 21 157 355 000 102 51 36 -9 -9 -9 000 2 12 14 -14.8 -16.0 28.67 12 21 153 351 000 105 50 36 -9 -9 -9 000 3 12 15 -14.6 -15.9 28.67 12 21 150 349 000 103 48 35 -9 -9 -9 000 4 12 16 -14.0 -15.5 28.67 11 20 147 346 000 102 49 36 -9 -9 -9 000 5 12 17 -13.2 -15.0 28.67 11 20 143 342 000 97 49 35 -9 -9 -9 000 6 12 18 -12.3 -15.2 28.68 12 21 142 340 000 86 47 36 -9 -9 -9 000 7 12 19 -11.6 -15.1 28.68 13 22 142 340 000 80 46 36 -9 -8 -8 000 8 12 20 -11.0 -14.8 28.67 13 22 141 339 000 77 45 35 -9 -8 -8 000 9 12 21 -10.6 -14.6 28.69 14 22 143 341 000 75 42 42 -8 -8 -8 000 10 12 22 -10.4 -14.5 28.71 15 22 142 340 000 75 41 56 -9 -8 -8 000 11 12 23 -10.3 -14.5 28.68 16 23 143 341 000 74 39 79 -9 -8 -8 000 12 13 00 -9.8 -13.9 28.69 16 22 144 343 000 74 36104 -8 -7 -7 000 13 13 01 -9.9 -14.0 28.69 15 22 145 344 000 75 38 99 -8 -7 -8 000 14 13 02 -10.1 -14.0 28.71 14 21 147 345 000 76 42104 -8 -7 -7 000 15 13 03 -10.4 -13.9 28.71 14 20 153 351 000 79 61106 -8 -8 -7 000 16 13 04 -10.9 -13.9 28.72 14 20 159 358 000 84 70107 -8 -7 -7 000 17 13 05 -11.5 -14.3 28.72 14 21 158 357 000 86 84109 -7 -7 -7 000 18 13 06 -11.3 -14.4 28.71 13 21 157 355 000 84 90108 -7 -7 -7 000 19 13 07 -11.3 -14.4 28.71 13 21 155 353 000 83 92110 -7 -7 -7 000 20 13 08 -10.5 -13.6 28.72 13 19 149 348 -001 83 98110 -7 -7 -7 000 21 13 09 -10.3 -13.8 28.72 12 19 154 353 -002 79105111 -7 -7 -7 001 22 13 10 -10.7 -13.7 28.73 13 19 161 359 000 84105110 -7 -7 -7 001 23 13 11 -11.0 -13.5 28.72 13 19 158 357 000 89103101 -7 -7 -8 012 24 13 12 -11.2 -13.3 28.73 12 19 161 0 000 92103107 -8 -7 -8 013 25 13 13 -11.3 -13.3 28.74 12 19 161 0 000 94103109 -7 -7 -8 011 26 13 14 -10.6 -12.5 28.75 12 18 156 354 000 93107110 -8 -7 -8 013 27 13 15 -10.2 -12.2 28.75 12 15 158 356 000 92105105 -8 -7 -8 009 28 13 16 -10.0 -12.2 28.74 11 14 157 356 000 91104108 -7 -7 -8 005 29 13 17 -9.7 -11.9 28.75 10 13 160 358 -001 90106110 -8 -8 -8 006 30 13 18 -9.6 -11.7 28.76 9 12 167 6 000 91106109 -8 -8 -9 009 31 13 19 -9.8 -12.3 28.76 9 11 171 10 000 88106112 -9 -8 -9 009 32 13 20 -9.9 -12.6 28.77 9 11 179 17 000 86107112 -9 -8 -9 006 33 13 21 -9.7 -13.1 28.78 8 9 183 21 000 81106112 -9 -8 -9 003 34 13 22 -9.4 -12.8 28.78 7 8 180 18 000 80106112 -9 -8 -9 001 35 13 23 -9.2 -12.6 28.78 6 6 181 20 000 80105112 -9 -9 -9 001 36 14 00 -9.1 -12.9 28.78 5 5 186 25 -001 77105110 -9 -9 -9 001 37 14 01 -9.4 -12.8 28.78 5 5 200 38 000 80104107 -9 -9 -9 001 38 14 02 -9.5 -12.7 28.78 5 5 208 46 000 83103101 -9 -9 -9 000 39 14 03 -9.9 -12.6 28.78 5 5 214 52 000 86100102 -9 -9 -9 000 40 14 04 -10.3 -12.2 28.78 4 5 218 57 000 94 98107 -9 -9 -9 000 41 14 05 -11.1 -12.6 28.79 4 4 219 58 000 98 94104 -9 -9 -9 000 42 14 06 -12.0 -13.3 28.79 4 5 213 52 -001 101 85104 -9 -9 -9 000 43 14 07 -12.8 -14.1 28.79 4 5 212 50 000 102 67105 -9 -9 -9 000 44 14 08 -13.5 -15.2 28.79 4 4 216 54 000 98 53 88 -9 -9-10 000 45 14 09 -13.3 -16.6 28.79 3 4 215 54 000 84 82 38 -9-10-10 000 46 14 10 -12.5 -17.5 28.79 1 2 233 71 000 71108 19 -9-11-10 000 47 14 11 -13.3 -17.9 28.79 1 5 244 83 000 75 81 24 -10-11 -9 000 48 14 12 -13.7 -17.0 28.79 2 5 242 80 000 85 58 31 -10-10-10 000 49 14 13 -14.6 -16.8 28.79 3 5 289 128 000 94 48 32 -11-10-10 000 50 14 14 -15.7 -16.1 28.79 5 5 296 135 000 115 50 29 -10-10-10 000 51 14 15 -15.7 -17.2 28.80 4 5 276 115 000 102 49 29 -10-10-10 000 52 14 16 -15.0 -18.2 28.81 4 6 248 86 -001 83 48 28 -10-10-10 000 53 14 17 -14.8 -16.5 28.81 5 6 230 68 000 99 49 27 -10-10-10 000 54 14 18 -14.6 -15.4 28.81 4 6 221 60 000 109 51 27 -11-11-11 000 55 14 19 -14.2 -15.3 28.81 4 6 211 50 000 105 58 26 -11-11-11 000 56 14 20 -13.6 -15.2 28.82 5 8 205 44 000 100 65 24 -11-11-11 000 57 14 21 -13.0 -14.8 28.84 6 8 205 44 000 97 64 24 -11-11-11 000 58 14 22 -12.4 -13.9 28.85 6 9 213 52 000 100 58 29 -11-11-11 000 59 14 23 -12.2 -13.9 28.86 8 10 224 63 000 98 56 51 -11-10-11 000 60 15 00 -11.8 -15.4 28.86 8 13 230 69 000 80 51 68 -10-10-10 000 61 15 01 -11.6 -15.5 28.86 9 14 238 76 000 77 84 41 -10-10-10 000 62 15 02 -11.8 -14.6 28.87 12 17 242 81 -001 87 95 63 -10 -9-10 000 63 15 03 -12.9 -15.0 28.88 14 19 238 77 -001 94 95 70 -11-10-10 000 64 15 04 -13.5 -14.6 28.88 15 21 241 79 -009 104 84 74 -11-10-10 000 65 15 05 -12.0 -12.7 28.89 14 21 239 78 -009 107111 82 -11-11-10 000 66 15 06 -12.1 -12.6 28.90 14 19 241 79 -009 110 80 83 -11-10-10 000 67 15 07 -13.8 -14.1 28.90 13 17 247 86 -007 114 83 61 -12-10-10 000 68 15 08 -12.8 -13.0 28.91 15 22 243 81 -009 113113 37 -13-12-10 000 69 15 09 -12.2 -12.4 28.91 16 23 238 76 -011 112102 29 -12-12-10 000 70 15 10 -12.4 -12.7 28.92 15 23 238 76 -006 112 95 28 -13-12-10 000 71 15 11 -13.4 -13.7 28.92 16 25 237 76 -004 114 87 31 -12-10-10 000 72 15 12 -15.8 -16.1 28.93 14 23 245 84 -006 116 70 71 -11 -9-10 000 73 15 13 -16.1 -16.5 28.94 13 22 246 85 -005 116 63 76 -12-10-10 000 74 15 14 -16.0 -16.4 28.95 12 21 241 80 -007 116 65 90 -11 -9-10 000 75 15 15 -15.9 -16.2 28.96 11 20 239 78 -006 116 78 80 -11-10-10 000 76 15 16 -15.5 -15.8 28.97 11 20 242 80 -007 116 87 73 -11 -9-10 000 77 15 17 -14.9 -15.7 28.97 10 17 253 91 -008 109 73 72 -11-10-10 000 78 15 18 -14.1 -15.9 28.98 11 17 254 93 -007 99 62 71 -12-10-10 000 79 15 19 -13.2 -15.2 28.99 12 17 244 83 -007 95 84 80 -13-11-10 000 80 15 20 -12.2 -13.4 29.00 12 16 240 79 -009 102 92 90 -13-11-10 000 81 15 21 -11.4 -11.7 29.01 12 15 235 73 -009 111 99 98 -13-12-10 000 82 15 22 -10.7 -11.2 29.01 12 14 237 75 -007 107110 92 -12-12-11 000 83 15 23 -11.6 -15.4 29.02 10 14 249 87 -005 78101 90 -11-11-12 000 84 16 00 -10.8 -13.1 29.03 10 15 252 90 -004 91105 85 -11-11-12 000 85 16 01 -10.6 -12.7 29.03 11 18 250 89 -004 92111 82 -11-11-12 000 86 16 02 -10.9 -11.6 29.03 11 18 242 81 000 105108 46 -11-11-12 000 87 16 03 -11.5 -12.6 29.03 11 15 240 79 000 102 98 32 -12-11-12 000 88 16 04 -11.4 -11.6 29.03 12 15 235 73 000 111 65 31 -12-10-11 000 89 16 05 -12.1 -12.3 29.04 12 17 228 66 003 112 97 29 -13-11-12 000 90 16 06 -11.9 -12.2 29.05 11 16 222 61 003 112112 66 -11-11-11 000 91 16 07 -11.0 -11.2 29.05 9 16 221 59 003 111112 51 -11-12-12 000 92 16 08 -10.9 -11.1 29.05 8 15 213 52 003 111109 84 -11-11-12 000 93 16 09 -11.1 -11.3 29.06 6 10 215 54 001 111107 86 -11-11-12 000 94 16 10 -11.4 -11.6 29.06 5 8 221 60 002 111107 95 -11-11-12 000 95 16 11 -11.5 -11.7 29.07 3 7 220 58 002 111105112 -10-11-12 000 96 16 12 -11.4 -11.5 29.07 4 6 211 49 003 111105116 -11-11-11 000 97 16 13 -11.4 -11.6 29.07 4 5 235 74 001 111 89113 -10-10-12 000 98 16 14 -11.0 -11.2 29.06 5 7 225 63 003 111 95116 -10-10-11 000 99 16 15 -10.6 -10.8 29.06 5 8 223 61 006 111 94116 -10-10-11 000 100 16 16 -10.2 -10.6 29.06 5 11 216 55 001 107 97116 -10-10-11 000 101 16 17 -10.0 -10.6 29.06 6 12 240 79 -002 105 85116 -8-10-11 001 102 16 18 -9.8 -10.6 29.06 6 11 240 78 -002 103 85116 -8 -9-11 000 103 16 19 -9.9 -10.7 29.07 7 8 218 57 -002 103 93113 -9 -9-11 000 104 16 20 -9.9 -10.7 29.07 6 8 201 39 000 103 99113 -9-10-11 000 105 16 21 -9.5 -10.3 29.07 5 8 199 37 000 102100112 -9-10-10 000 106 16 22 -8.7 -9.6 29.07 5 9 192 30 000 101104 97 -9-10-11 000 107 16 23 -8.5 -9.6 29.06 5 7 178 17 000 99103 86 -9-10-11 000 108 17 00 -8.3 -9.4 29.06 4 8 189 27 000 99108 86 -9-10-11 000 109 17 01 -8.6 -9.7 29.05 3 8 209 48 000 99107 77 -9-10-10 000 110 17 02 -8.8 -10.1 29.05 3 4 205 44 000 98102 75 -9-10-10 000 111 17 03 -9.2 -10.4 29.04 3 3 181 19 000 99101 84 -10-10-10 000 112 17 04 -9.7 -10.4 29.03 3 3 144 343 000 104 97 73 -10-10-10 000 113 17 05 -9.4 -9.5 29.03 4 5 137 335 000 109109 69 -10-11-10 000 114 17 06 -9.2 -9.3 29.02 5 6 157 355 001 109112 70 -10-11-11 000 115 17 07 -9.6 -9.8 29.01 7 8 175 14 000 109112 79 -10-12-13 000 116 17 08 -9.9 -10.1 29.01 8 10 180 19 000 110112 73 -11-12-13 000 117 17 09 -10.0 -10.2 29.00 8 12 185 23 000 110112 68 -11-12-13 000 118 17 10 -10.1 -10.3 29.00 9 12 192 30 001 110112 59 -11-12-13 000 119 17 11 -10.5 -10.7 28.99 10 12 175 14 000 110113 42 -11-13-14 000 120 17 12 -10.5 -10.7 28.98 11 14 174 12 000 110113 51 -11-12-11 000 * NOTES on units: VVV (vertical velocity) is given as tenths of a microbar per second at 700 hPa, with positive values indicating upward motion; ACCUM (accumulated precipitation, past 3h) is given as hundredths of a millimeter; RH1, RH2, and RH3 are the % RH at the surface, 1000', and 3000', respectively; T1, T2, and T3 are the temperatures at 500', 1000', and 1500', respectively. Gust is estimated according to the NCEP HRRR gust algorithm.