USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2025-12-19/00 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 19 00 -13.1 -15.5 28.75 16 23 214 53 000 72 52 46 -13-14-14 000 1 19 01 -14.8 -16.4 28.77 17 23 210 48 -002 101 63 43 -16-15-15 000 2 19 02 -14.9 -16.1 28.78 18 23 217 55 -006 105 65 39 -16-15-15 000 3 19 03 -15.0 -16.0 28.78 18 23 219 57 -009 108 64 36 -16-15-15 000 4 19 04 -15.2 -16.0 28.77 17 22 222 61 -012 110 64 36 -16-15-14 000 5 19 05 -15.3 -15.9 28.80 17 22 225 63 -013 112 63 37 -16-15-14 000 6 19 06 -15.5 -15.9 28.79 17 23 227 65 -014 115 63 38 -16-15-14 000 7 19 07 -15.5 -15.8 28.79 18 23 229 67 -014 116 64 41 -16-15-14 000 8 19 08 -15.4 -15.7 28.81 18 23 231 69 -015 116 67 46 -16-14-14 000 9 19 09 -15.6 -16.0 28.81 17 22 235 73 -017 116 71 50 -15-14-14 000 10 19 10 -15.9 -16.2 28.79 18 23 237 75 -007 116 64 53 -15-14-14 000 11 19 11 -15.8 -16.1 28.82 18 24 236 75 000 116 56 53 -15-13-13 000 12 19 12 -15.8 -16.1 28.81 18 25 237 75 000 116 52 52 -14-13-13 000 13 19 13 -15.9 -16.2 28.80 18 25 237 76 -003 116 50 41 -14-12-12 000 14 19 14 -15.9 -16.2 28.81 17 25 239 78 -001 116 51 36 -14-12-12 000 15 19 15 -15.9 -16.2 28.81 16 24 240 78 -006 116 52 38 -14-12-12 000 16 19 16 -15.6 -15.9 28.82 15 23 242 80 -005 116 54 38 -13-12-12 000 17 19 17 -15.1 -15.4 28.82 15 21 242 80 -006 116 55 38 -13-12-12 000 18 19 18 -14.7 -14.9 28.83 15 20 243 81 -008 115 56 35 -13-12-12 000 19 19 19 -14.0 -14.7 28.85 15 20 243 81 -009 110 56 31 -13-12-11 000 20 19 20 -13.4 -14.7 28.86 15 20 242 80 -008 102 53 30 -12-11-11 000 21 19 21 -13.0 -14.6 28.87 15 20 241 79 -005 100 51 35 -11-11-11 000 22 19 22 -12.8 -14.5 28.88 14 20 242 81 -002 98 51 34 -11-10-10 000 23 19 23 -12.5 -14.4 28.89 14 20 245 83 -001 96 51 34 -11-10-10 000 24 20 00 -12.4 -14.3 28.90 15 20 246 84 000 95 55 44 -11-10-10 000 25 20 01 -12.3 -14.2 28.92 15 20 250 88 -001 95 58 50 -10-10-11 000 26 20 02 -12.2 -14.2 28.95 15 21 250 88 000 94 56 44 -10-10-10 000 27 20 03 -12.2 -14.1 28.97 15 20 252 90 000 95 49 46 -10 -9-10 000 28 20 04 -12.3 -14.1 28.98 15 20 256 94 000 96 42 45 -10 -9-10 000 29 20 05 -12.5 -14.1 28.99 15 21 257 96 000 99 37 42 -10 -9-10 000 30 20 06 -12.7 -14.0 29.02 14 20 258 96 -001 101 33 43 -10 -9-10 000 31 20 07 -13.0 -14.1 29.04 14 19 259 97 -005 105 32 44 -10 -9-10 000 32 20 08 -13.4 -14.4 29.05 13 19 257 95 -007 106 30 42 -9 -9 -9 000 33 20 09 -14.2 -15.0 29.07 11 17 257 96 -009 109 28 37 -9 -8 -9 000 34 20 10 -14.2 -16.2 29.08 11 16 258 96 -009 96 27 38 -9 -8 -9 000 35 20 11 -14.3 -17.3 29.10 10 14 259 98 -009 85 25 42 -9 -9 -9 000 36 20 12 -14.1 -18.6 29.12 9 14 257 96 -007 70 25 41 -9 -9 -9 000 37 20 13 -14.0 -19.5 29.14 9 13 259 97 -001 62 25 40 -9 -9 -9 000 38 20 14 -13.9 -19.7 29.15 9 12 257 96 002 58 25 40 -9 -9 -9 000 39 20 15 -13.6 -19.5 29.17 8 11 264 102 003 56 24 41 -8 -9 -9 000 40 20 16 -13.3 -19.2 29.18 6 8 277 116 005 54 27 41 -9 -9-10 000 41 20 17 -12.5 -18.4 29.19 6 8 274 113 000 53 27 37 -8 -9-10 000 42 20 18 -11.6 -17.4 29.20 5 7 270 108 -003 52 25 35 -9 -9-10 000 43 20 19 -10.8 -16.5 29.20 4 6 270 109 -005 53 25 38 -9-10-10 000 44 20 20 -10.1 -15.4 29.21 4 7 276 115 -002 63 26 37 -9-10-11 000 45 20 21 -9.2 -10.5 29.22 4 5 266 104 000 98 26 33 -9-10-11 000 46 20 22 -8.8 -9.9 29.23 4 5 275 113 -001 99 26 35 -9-10-11 000 47 20 23 -8.6 -9.8 29.23 3 4 279 117 -002 98 32 36 -9-10-11 000 48 21 00 -8.3 -9.8 29.23 2 3 283 121 000 96 87 37 -9-11-12 000 49 21 01 -8.1 -9.9 29.23 1 3 318 156 000 93102 39 -9-11-12 000 50 21 02 -7.9 -9.9 29.23 2 3 12 210 000 91106 69 -9-10-12 000 51 21 03 -7.6 -11.4 29.22 4 4 328 166 000 77 91105 -9-10-12 000 52 21 04 -7.9 -9.7 29.21 5 6 358 196 -001 92 93111 -9-10-12 000 53 21 05 -8.0 -10.0 29.21 6 7 0 199 000 91 97106 -9-10-12 000 54 21 06 -9.4 -10.0 29.21 5 7 4 202 000 105 89100 -9-10-11 000 55 21 07 -10.9 -11.3 29.21 3 7 16 214 -001 110 88 94 -9-10-11 000 56 21 08 -11.5 -11.6 29.21 3 4 5 204 000 111 75 88 -9-10-11 000 57 21 09 -11.6 -11.7 29.20 3 4 7 205 000 111 78 93 -9-10-11 000 58 21 10 -11.6 -11.7 29.20 4 4 18 216 -001 111 82105 -9-10-11 000 59 21 11 -12.0 -12.2 29.19 2 3 38 237 -002 112 92105 -9-10-11 000 60 21 12 -12.8 -13.2 29.19 2 6 46 244 -003 112 89 98 -9-10-11 000 61 21 13 -12.3 -12.5 29.19 3 6 33 232 -001 112 97 92 -10-10-11 000 62 21 14 -12.0 -12.3 29.18 3 6 61 259 000 111 95 93 -9-10-11 000 63 21 15 -10.9 -11.6 29.18 4 5 80 278 001 107 91104 -9-10-11 003 64 21 16 -9.1 -10.1 29.18 4 5 58 256 006 100 98112 -9-10-11 019 65 21 17 -8.5 -9.7 29.17 4 6 47 246 002 98 98108 -9-10-11 042 66 21 18 -8.2 -9.6 29.17 4 5 46 244 -001 96 92107 -9-10-11 014 67 21 19 -8.2 -9.6 29.17 3 4 37 235 -001 96 96106 -9-10-11 004 68 21 20 -8.1 -9.4 29.17 3 3 40 238 000 96 95104 -9-10-11 003 69 21 21 -7.7 -9.2 29.17 3 4 44 243 000 94 92103 -9-10-11 002 70 21 22 -7.5 -9.3 29.17 4 4 40 238 000 92 97109 -9-10-11 005 71 21 23 -7.4 -9.2 29.16 4 4 36 235 000 91105107 -9-10-11 005 72 22 00 -7.3 -9.3 29.16 5 5 39 237 000 90103103 -9-10-11 004 73 22 01 -7.6 -9.1 29.16 5 6 41 239 -001 95110101 -9-10-11 002 74 22 02 -7.9 -8.6 29.15 5 5 46 244 001 102111 99 -9-10-11 001 75 22 03 -8.2 -9.0 29.14 5 5 54 252 000 101 91 94 -9-10-11 001 76 22 04 -8.3 -8.3 29.14 5 6 77 276 000 108 91 94 -9-10-11 000 77 22 05 -8.5 -9.4 29.14 5 5 69 267 -001 101 80 98 -10-10-11 000 78 22 06 -9.5 -9.5 29.14 4 5 76 274 000 109 86 95 -10-10-11 000 79 22 07 -9.9 -10.0 29.13 4 4 83 281 000 110 84 93 -9-10-11 000 80 22 08 -10.2 -10.3 29.13 5 6 90 289 000 110 83 99 -9-10-11 000 81 22 09 -10.9 -11.0 29.13 3 8 99 298 000 111 91 94 -9-10-11 000 82 22 10 -12.6 -15.2 29.13 5 9 121 319 000 87 72 91 -9-10-11 000 83 22 11 -13.5 -21.0 29.13 7 9 119 317 000 43 70 91 -9-10-11 000 84 22 12 -13.6 -14.6 29.13 7 10 122 321 000 105 37 90 -10-10-11 000 85 22 13 -13.4 -14.1 29.13 7 11 134 332 000 109 69 73 -10-11-12 000 86 22 14 -13.0 -13.9 29.12 7 10 136 334 000 106 76 39 -10-11-12 000 87 22 15 -12.6 -14.4 29.12 7 10 133 331 000 94 74 59 -9-11-12 000 88 22 16 -12.1 -14.5 29.12 7 10 131 329 000 89 77 75 -9-11-12 000 89 22 17 -11.3 -12.9 29.12 6 10 142 341 000 97 72 81 -10-11-12 000 90 22 18 -10.7 -12.3 29.13 5 10 163 1 000 96 71 80 -10-11-12 000 91 22 19 -10.1 -12.8 29.13 6 11 178 17 000 86 82 84 -10-11-12 000 92 22 20 -10.1 -12.8 29.13 7 11 190 29 -002 87 99 98 -10-11-12 000 93 22 21 -10.4 -13.0 29.13 7 12 192 31 -002 87 95 86 -10-11-12 000 94 22 22 -11.0 -12.1 29.14 7 10 180 19 -002 101102 92 -11-11-12 000 95 22 23 -10.4 -10.5 29.13 8 11 183 21 -004 111 96 97 -12-11-12 000 96 23 00 -10.7 -10.8 29.13 10 12 191 29 -004 111 96 96 -12-11-12 000 97 23 01 -10.8 -10.9 29.13 11 14 186 24 -005 111105 90 -12-12-12 000 98 23 02 -10.1 -10.7 29.13 11 14 188 26 -004 105113 91 -11-13-12 000 99 23 03 -10.3 -10.6 29.13 10 13 192 31 -004 109113 99 -11-13-13 000 100 23 04 -10.4 -10.7 29.13 10 12 198 37 -004 110113 93 -12-13-14 000 101 23 05 -9.9 -11.1 29.13 8 11 197 35 000 100113 88 -11-12-14 000 102 23 06 -10.7 -11.4 29.12 8 11 217 56 000 106 97 84 -12-12-12 000 103 23 07 -10.9 -11.1 29.12 11 14 224 62 -006 111113 85 -12-13-12 000 104 23 08 -10.9 -11.1 29.11 12 14 227 65 -007 111111 96 -12-12-13 000 105 23 09 -10.6 -11.7 29.11 11 15 244 82 -005 101112114 -11-12-13 005 106 23 10 -10.3 -10.7 29.10 13 17 233 71 -002 108113102 -11-12-13 006 107 23 11 -10.0 -10.2 29.10 15 18 234 72 -011 110112104 -11-12-13 008 108 23 12 -9.9 -10.2 29.09 13 17 231 69 -009 109112117 -11-12-13 011 109 23 13 -10.0 -11.1 29.09 13 17 232 71 -004 101112111 -11-12-13 014 110 23 14 -10.0 -10.2 29.08 12 16 227 65 -007 110112 70 -11-12-13 001 111 23 15 -9.9 -10.7 29.07 11 16 224 62 -002 103112 63 -11-12-13 001 112 23 16 -9.8 -10.1 29.07 11 14 218 56 -005 108112 63 -11-12-13 004 113 23 17 -9.7 -11.0 29.06 11 13 202 40 -002 99113 50 -11-12-14 001 114 23 18 -9.9 -11.0 29.06 9 10 203 41 -002 100113 47 -11-13-13 000 115 23 19 -10.1 -11.5 29.06 8 9 205 44 000 98101 46 -11-12-13 000 116 23 20 -10.0 -11.6 29.06 7 8 203 41 000 96 92 55 -11-12-12 000 117 23 21 -9.8 -11.3 29.07 7 8 203 42 001 97 98 55 -11-12-13 000 118 23 22 -9.8 -11.3 29.07 7 7 201 39 000 96 99 56 -11-12-13 000 119 23 23 -9.6 -11.6 29.06 6 6 198 36 000 93 57 56 -11-12-12 000 120 24 00 -9.6 -11.6 29.06 6 6 195 34 000 92 42 57 -11-11-12 000 * 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.