USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2026-10-12/00 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 12 00 -29.0 -33.9 28.95 0 2 277 116 000 60 60 79 -24-23-23 000 1 12 01 -27.1 -33.2 28.95 2 2 265 103 000 70 62 80 -24-23-23 000 2 12 02 -27.3 -33.0 28.96 1 1 294 132 000 73 65 80 -24-23-23 000 3 12 03 -27.3 -33.0 28.96 0 1 0 198 001 73 66 79 -23-23-22 000 4 12 04 -27.5 -33.2 28.96 1 2 13 212 000 72 67 79 -23-23-22 000 5 12 05 -27.6 -33.4 28.97 1 3 24 222 000 72 68 75 -23-22-22 000 6 12 06 -27.8 -33.6 28.96 1 2 52 250 000 71 69 72 -23-22-22 000 7 12 07 -27.7 -33.8 28.96 1 1 14 212 001 68 69 68 -23-22-22 000 8 12 08 -27.6 -33.9 28.96 0 1 68 266 000 66 69 61 -23-22-22 000 9 12 09 -27.7 -34.1 28.95 0 1 87 286 001 66 70 56 -23-22-22 000 10 12 10 -27.8 -34.1 28.94 2 3 134 332 000 66 70 47 -22-22-22 000 11 12 11 -28.5 -34.1 28.93 5 6 121 319 000 72 71 41 -22-22-21 000 12 12 12 -29.9 -34.7 28.92 7 8 111 309 000 76 72 41 -22-22-21 000 13 12 13 -30.3 -34.9 28.93 7 10 108 306 000 78 73 41 -22-22-21 000 14 12 14 -30.5 -34.8 28.91 8 10 105 303 001 79 73 38 -22-21-21 000 15 12 15 -30.3 -34.5 28.90 8 11 105 304 000 81 72 34 -22-21-21 000 16 12 16 -30.0 -34.0 28.89 9 12 108 306 004 83 71 33 -21-21-21 000 17 12 17 -28.6 -32.6 28.86 9 15 112 310 002 86 70 26 -21-21-21 000 18 12 18 -28.0 -31.8 28.84 9 15 111 309 -002 88 68 27 -21-20-20 000 19 12 19 -26.5 -30.7 28.81 9 16 114 313 000 84 66 24 -21-20-20 000 20 12 20 -25.6 -29.7 28.80 9 16 117 316 000 85 65 22 -21-20-20 000 21 12 21 -25.0 -29.0 28.78 11 17 122 320 000 86 64 20 -20-19-20 000 22 12 22 -24.6 -28.5 28.76 12 19 129 327 000 86 64 19 -20-19-19 000 23 12 23 -24.2 -28.1 28.74 13 20 136 334 000 87 62 19 -20-19-19 000 24 13 00 -24.3 -28.0 28.72 14 21 140 338 000 89 61 18 -20-19-19 000 25 13 01 -24.3 -27.9 28.71 15 23 142 340 000 89 61 20 -20-19-18 000 26 13 02 -24.3 -27.9 28.69 16 24 142 340 000 90 61 21 -21-19-18 000 27 13 03 -24.5 -28.0 28.67 16 24 147 345 000 90 55 21 -20-18-18 000 28 13 04 -25.0 -28.4 28.64 15 24 149 348 000 91 50 20 -20-18-17 000 29 13 05 -25.4 -28.9 28.63 14 25 152 351 -001 92 44 24 -19-18-17 000 30 13 06 -26.0 -29.3 28.61 14 25 156 354 000 94 42 22 -19-18-17 000 31 13 07 -26.6 -29.5 28.60 14 24 157 356 -001 98 40 18 -19-18-17 000 32 13 08 -27.4 -29.8 28.58 14 24 162 0 000 105 36 19 -19-17-16 000 33 13 09 -27.7 -29.9 28.56 14 25 164 3 000 108 34 19 -18-17-16 000 34 13 10 -27.6 -29.6 28.56 15 26 163 1 000 110 34 19 -18-17-16 000 35 13 11 -27.2 -29.3 28.55 15 26 163 2 000 108 34 20 -18-16-16 000 36 13 12 -27.1 -29.2 28.54 15 26 164 3 000 109 33 22 -18-16-15 000 37 13 13 -27.1 -29.2 28.53 15 26 165 3 000 109 34 26 -18-16-15 000 38 13 14 -27.1 -29.1 28.52 14 26 165 3 -001 110 32 28 -17-15-15 000 39 13 15 -26.9 -29.0 28.51 14 25 165 4 -001 108 30 28 -17-15-15 000 40 13 16 -27.0 -29.1 28.51 14 25 168 6 000 108 29 28 -17-14-15 000 41 13 17 -26.9 -29.1 28.50 14 23 169 8 000 107 26 31 -16-14-14 000 42 13 18 -26.5 -28.9 28.49 13 22 171 9 -001 104 24 30 -16-14-14 000 43 13 19 -26.0 -28.6 28.49 13 22 172 10 000 101 23 31 -16-14-14 000 44 13 20 -25.4 -28.2 28.48 13 22 172 11 000 98 22 32 -16-14-14 000 45 13 21 -24.7 -27.5 28.47 12 21 171 10 000 98 23 30 -15-14-14 000 46 13 22 -23.8 -26.8 28.47 12 20 169 8 000 95 24 27 -15-14-14 000 47 13 23 -23.2 -26.5 28.47 11 18 171 9 000 92 26 25 -15-14-14 000 48 14 00 -22.9 -26.3 28.47 10 17 173 12 000 90 28 25 -15-14-14 000 49 14 01 -22.8 -26.3 28.47 10 17 175 13 000 88 29 27 -15-14-14 000 50 14 02 -23.1 -26.8 28.47 10 16 175 13 000 87 33 26 -15-14-14 000 51 14 03 -23.7 -27.6 28.46 9 15 171 10 000 84 33 28 -15-14-13 000 52 14 04 -24.0 -28.4 28.46 9 14 164 3 000 78 31 30 -15-14-14 000 53 14 05 -24.4 -29.0 28.46 9 13 158 357 000 74 30 30 -15-14-14 000 54 14 06 -24.4 -29.1 28.46 9 12 151 349 000 73 32 31 -15-14-14 000 55 14 07 -24.4 -29.2 28.45 9 11 148 346 000 71 33 33 -15-15-14 000 56 14 08 -24.6 -29.3 28.46 8 11 147 345 001 72 34 34 -15-15-15 000 57 14 09 -24.6 -29.4 28.47 8 11 149 347 000 71 34 35 -15-15-15 000 58 14 10 -24.5 -29.6 28.47 8 10 142 340 000 69 34 35 -15-15-15 000 59 14 11 -24.2 -29.7 28.48 8 9 132 330 000 66 34 33 -15-15-14 000 60 14 12 -24.2 -30.0 28.48 8 9 119 318 -001 64 34 27 -15-15-14 000 61 14 13 -23.9 -30.2 28.50 7 8 117 316 -001 61 35 29 -15-15-14 000 62 14 14 -23.1 -30.3 28.51 6 7 121 319 -002 58 32 27 -15-14-14 000 63 14 15 -22.8 -30.3 28.51 6 7 136 334 -002 56 32 32 -15-14-14 000 64 14 16 -23.3 -30.4 28.52 7 9 152 350 000 55 32 41 -15-15-14 000 65 14 17 -23.7 -30.5 28.52 7 9 135 333 000 56 26 41 -15-15-14 000 66 14 18 -22.5 -30.4 28.53 6 7 120 318 000 51 22 39 -15-14-14 000 67 14 19 -20.8 -29.3 28.55 4 4 110 308 -001 53 21 37 -14-14-14 000 68 14 20 -19.5 -28.8 28.56 1 1 101 300 001 48 22 35 -13-13-13 000 69 14 21 -19.0 -28.9 28.57 2 4 81 280 000 45 26 33 -14-13-13 000 70 14 22 -18.7 -28.6 28.58 3 5 54 253 000 45 29 36 -13-13-13 000 71 14 23 -18.5 -27.6 28.59 2 5 33 231 000 49 33 38 -13-13-14 000 72 15 00 -18.5 -27.2 28.61 3 5 28 226 000 51 41 35 -14-14-14 000 73 15 01 -19.0 -27.1 28.61 3 5 53 251 000 55 40 35 -14-14-14 000 74 15 02 -18.6 -26.6 28.62 3 7 30 228 000 55 42 36 -14-13-13 000 75 15 03 -19.3 -26.5 28.62 4 7 26 224 000 60 40 36 -14-13-13 000 76 15 04 -19.9 -25.5 28.63 4 6 24 222 -001 70 45 39 -13-13-13 000 77 15 05 -20.3 -24.5 28.63 3 5 8 206 000 81 53 31 -13-13-13 000 78 15 06 -21.3 -23.6 28.64 4 6 358 196 000 98 57 22 -14-13-13 000 79 15 07 -22.8 -23.6 28.65 6 9 356 194 000 111 51 24 -15-14-14 000 80 15 08 -25.2 -25.8 28.65 7 10 354 192 000 125 43 34 -14-14-14 000 81 15 09 -24.3 -24.9 28.66 8 12 346 185 000 125 42 36 -15-14-13 000 82 15 10 -22.9 -23.5 28.67 8 13 343 181 000 124 41 35 -14-13-13 000 83 15 11 -22.7 -23.3 28.67 8 12 344 183 001 124 42 35 -14-13-13 000 84 15 12 -23.0 -23.7 28.68 7 10 343 181 000 124 42 39 -14-13-13 000 85 15 13 -25.0 -25.7 28.69 6 7 329 167 -001 126 42 41 -13-13-13 000 86 15 14 -23.2 -23.2 28.70 4 4 314 153 000 124 43 44 -13-13-14 000 87 15 15 -23.2 -23.2 28.71 4 4 343 182 000 124 41 45 -14-13-14 000 88 15 16 -26.2 -26.9 28.71 8 11 359 198 000 127 38 43 -13-13-13 000 89 15 17 -25.5 -26.2 28.73 7 12 355 194 000 127 38 41 -13-13-13 000 90 15 18 -24.3 -25.0 28.73 8 16 336 174 000 126 37 39 -13-13-13 000 91 15 19 -22.9 -23.5 28.75 9 15 324 163 000 124 36 38 -13-13-14 000 92 15 20 -22.2 -22.8 28.76 8 13 326 164 -002 123 41 38 -13-13-14 000 93 15 21 -22.2 -22.8 28.78 7 11 331 169 -002 123 41 34 -13-13-14 000 94 15 22 -21.8 -22.2 28.80 7 10 356 194 -003 123 32 37 -13-14-14 000 95 15 23 -20.2 -20.5 28.81 8 9 351 189 -005 121 33 32 -13-14-14 000 96 16 00 -19.5 -19.8 28.81 8 9 350 189 000 121 42 54 -13-14-14 000 97 16 01 -19.1 -19.4 28.82 6 7 344 183 002 120 48 97 -14-14-14 000 98 16 02 -18.6 -18.9 28.83 5 6 315 153 002 119 51100 -15-14-14 000 99 16 03 -18.5 -18.8 28.83 4 5 291 130 001 119 61100 -16-14-13 000 100 16 04 -18.8 -19.2 28.82 3 4 268 106 000 120 74102 -16-14-13 000 101 16 05 -19.3 -20.1 28.82 3 4 229 67 000 120 92 94 -17-14-12 000 102 16 06 -20.2 -21.0 28.82 4 4 208 47 000 121 82 94 -15-13-13 000 103 16 07 -21.8 -22.5 28.81 5 6 195 33 001 123 85 96 -13-12-13 000 104 16 08 -23.7 -24.5 28.80 6 9 167 6 000 124 83 93 -12-12-13 000 105 16 09 -22.0 -22.5 28.79 8 11 124 322 000 121 91 92 -12-13-13 000 106 16 10 -21.8 -22.3 28.78 9 12 117 316 000 121 82 93 -11-12-13 000 107 16 11 -21.5 -21.9 28.77 9 13 118 316 001 120 78 90 -11-13-13 000 108 16 12 -20.8 -21.3 28.75 9 13 118 316 000 120 78 88 -11-12-13 000 109 16 13 -19.8 -20.3 28.74 10 16 115 313 000 119 95 86 -11-12-13 000 110 16 14 -19.6 -20.1 28.73 10 18 119 317 001 120 91 89 -12-12-13 000 111 16 15 -18.9 -19.4 28.72 10 19 120 319 001 119 90 88 -11-12-13 000 112 16 16 -18.2 -18.6 28.70 10 19 125 323 002 118 95 86 -12-12-13 000 113 16 17 -17.4 -17.8 28.68 10 18 130 329 001 117 85 93 -12-12-13 000 114 16 18 -17.0 -17.5 28.66 9 17 137 336 001 117 86 86 -11-13-14 000 115 16 19 -17.2 -17.7 28.64 9 19 148 347 000 117 86 89 -12-13-14 000 116 16 20 -19.0 -19.4 28.62 9 17 169 7 000 120 88 88 -11-13-14 000 117 16 21 -20.0 -20.4 28.60 12 19 179 17 000 121 85 75 -11-13-13 000 118 16 22 -21.1 -21.5 28.58 14 22 183 21 000 123 69 72 -12-13-13 000 119 16 23 -22.3 -22.7 28.56 15 21 187 26 000 124 56 49 -12-12-13 000 120 17 00 -21.6 -21.9 28.54 16 22 191 29 000 123 84 37 -14-12-12 000 * 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.