USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2026-10-11/12 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 11 12 -35.1 -39.4 28.82 4 6 294 132 000 75 77 86 -25-24-23 000 1 11 13 -34.2 -35.7 28.83 7 10 273 111 000 116 76 87 -25-24-23 000 2 11 14 -33.6 -35.5 28.85 7 10 270 108 000 109 73 87 -25-24-24 000 3 11 15 -33.5 -35.5 28.85 7 9 272 110 000 108 72 85 -25-24-24 000 4 11 16 -32.5 -34.6 28.87 6 7 277 116 000 106 71 85 -24-24-24 000 5 11 17 -32.0 -34.5 28.88 6 7 273 111 000 102 69 83 -24-24-24 000 6 11 18 -30.9 -33.9 28.89 5 6 270 108 000 98 67 82 -25-25-24 000 7 11 19 -30.2 -33.8 28.89 4 5 273 111 001 92 65 83 -25-25-23 000 8 11 20 -30.3 -34.1 28.91 5 5 282 121 000 90 61 83 -25-24-23 000 9 11 21 -30.6 -34.7 28.92 6 7 272 110 001 85 57 86 -25-24-24 000 10 11 22 -30.7 -35.5 28.92 6 8 267 105 001 76 55 87 -25-24-23 000 11 11 23 -30.6 -35.1 28.93 6 8 263 101 001 80 57 87 -24-24-23 000 12 12 00 -30.6 -33.1 28.96 6 7 268 106 000 107 60 84 -24-24-23 000 13 12 01 -30.3 -32.0 28.96 5 6 269 107 001 117 62 83 -24-24-23 000 14 12 02 -29.2 -31.1 28.95 3 4 264 103 001 110 69 81 -25-24-23 000 15 12 03 -28.8 -31.8 28.96 2 2 273 112 000 97 75 82 -25-23-22 000 16 12 04 -28.8 -33.3 28.96 0 2 310 149 001 82 77 82 -24-23-23 000 17 12 05 -29.1 -34.5 28.97 0 2 324 162 000 74 79 82 -23-23-22 000 18 12 06 -29.2 -34.9 28.97 0 1 116 314 000 71 79 83 -23-23-22 000 19 12 07 -29.2 -35.0 28.97 1 2 93 292 000 70 79 83 -23-22-22 000 20 12 08 -29.1 -34.8 28.97 1 2 92 290 000 70 78 79 -23-22-22 000 21 12 09 -29.0 -33.8 28.96 2 3 83 281 000 77 78 75 -23-22-22 000 22 12 10 -29.1 -33.7 28.95 3 5 92 290 001 79 78 59 -22-22-21 000 23 12 11 -29.5 -33.8 28.94 4 6 100 298 000 83 76 45 -22-22-21 000 24 12 12 -29.8 -33.8 28.94 5 7 97 295 000 85 78 42 -22-22-22 000 25 12 13 -30.9 -34.7 28.94 7 9 101 299 000 86 76 40 -22-22-21 000 26 12 14 -31.1 -34.6 28.93 7 10 101 299 000 88 77 40 -22-21-21 000 27 12 15 -31.2 -34.6 28.92 8 11 102 300 000 89 76 38 -22-21-21 000 28 12 16 -30.7 -34.2 28.89 9 12 103 301 000 89 74 38 -22-21-21 000 29 12 17 -29.7 -33.3 28.89 9 13 104 303 004 90 72 38 -21-20-20 000 30 12 18 -28.7 -32.1 28.86 9 14 108 306 001 93 73 39 -21-20-20 000 31 12 19 -28.1 -31.1 28.84 9 15 112 311 002 98 71 37 -21-20-20 000 32 12 20 -27.9 -30.8 28.82 9 17 114 312 000 100 71 35 -21-20-20 000 33 12 21 -27.3 -30.2 28.80 10 18 122 321 000 99 69 35 -20-19-19 000 34 12 22 -26.8 -29.9 28.79 11 19 124 322 000 96 68 37 -20-19-19 000 35 12 23 -26.4 -29.8 28.78 12 21 126 325 001 93 65 39 -20-19-19 000 36 13 00 -26.0 -29.4 28.75 13 21 136 334 -004 92 60 38 -20-18-18 000 37 13 01 -26.1 -29.5 28.73 14 23 133 331 000 93 59 36 -20-19-18 000 38 13 02 -25.6 -29.2 28.70 15 25 133 331 000 91 59 34 -20-19-18 000 39 13 03 -25.4 -28.9 28.68 14 25 139 338 000 90 53 33 -20-18-17 000 40 13 04 -26.1 -29.1 28.67 14 25 148 346 000 97 42 35 -20-18-17 000 41 13 05 -26.8 -29.4 28.65 15 25 149 347 000 102 37 32 -20-18-16 000 42 13 06 -27.6 -30.0 28.64 15 26 153 351 000 106 36 25 -20-18-16 000 43 13 07 -28.1 -30.1 28.62 15 26 158 356 000 111 33 19 -19-18-17 000 44 13 08 -28.4 -30.3 28.59 16 27 159 357 000 112 29 17 -19-17-16 000 45 13 09 -28.5 -30.2 28.58 16 28 158 357 000 115 27 17 -19-17-16 000 46 13 10 -28.6 -29.9 28.57 16 29 159 358 000 120 26 18 -18-16-15 000 47 13 11 -28.5 -29.8 28.55 17 29 160 359 000 120 25 22 -18-16-15 000 48 13 12 -28.5 -29.8 28.54 16 28 165 3 000 120 23 27 -18-15-15 000 49 13 13 -28.4 -29.7 28.53 16 28 167 5 000 120 22 31 -18-15-14 000 50 13 14 -28.3 -29.6 28.52 16 29 166 4 000 120 21 31 -18-14-14 000 51 13 15 -28.2 -29.5 28.51 16 28 166 5 000 119 20 32 -17-14-14 000 52 13 16 -27.9 -29.4 28.49 16 27 169 7 000 116 19 31 -17-13-14 000 53 13 17 -27.3 -29.0 28.48 15 26 170 8 000 113 19 34 -16-13-13 000 54 13 18 -26.6 -28.5 28.47 15 26 172 11 -002 110 18 34 -16-13-13 000 55 13 19 -25.7 -27.8 28.46 15 25 173 12 -003 106 16 33 -16-12-13 000 56 13 20 -25.5 -27.1 28.46 14 24 175 14 000 112 17 31 -16-12-13 000 57 13 21 -24.6 -25.9 28.45 13 22 178 16 000 115 23 29 -16-12-13 000 58 13 22 -23.8 -25.5 28.45 13 22 180 19 000 110 29 30 -16-13-13 000 59 13 23 -23.5 -26.2 28.43 12 20 180 19 -001 98 24 30 -15-12-13 000 60 14 00 -23.1 -27.3 28.43 11 19 178 17 000 82 24 28 -15-13-13 000 61 14 01 -23.0 -27.9 28.42 11 18 182 21 000 75 21 29 -15-13-12 000 62 14 02 -23.6 -28.5 28.42 10 17 186 24 000 75 23 29 -14-13-13 000 63 14 03 -24.4 -29.2 28.41 10 16 182 21 000 75 23 27 -14-13-13 000 64 14 04 -24.5 -29.2 28.40 9 15 172 11 000 75 27 28 -14-13-13 000 65 14 05 -24.7 -29.6 28.40 8 13 169 8 000 71 27 27 -14-14-13 000 66 14 06 -24.8 -30.0 28.40 8 12 171 9 000 69 21 25 -14-13-13 000 67 14 07 -24.4 -29.9 28.39 7 11 165 3 -001 66 20 24 -14-14-13 000 68 14 08 -24.2 -29.9 28.39 7 10 155 353 000 64 20 23 -14-13-13 000 69 14 09 -23.1 -29.5 28.40 6 8 134 332 000 63 20 23 -14-13-13 000 70 14 10 -22.4 -28.5 28.40 4 4 117 315 -001 67 22 22 -14-13-13 000 71 14 11 -21.8 -28.1 28.41 2 4 139 337 000 64 23 16 -14-13-13 000 72 14 12 -21.4 -28.6 28.41 4 5 164 3 001 59 27 27 -14-13-13 000 73 14 13 -21.3 -28.3 28.41 5 5 151 349 000 60 43 35 -13-13-12 000 74 14 14 -20.3 -27.7 28.42 5 6 119 317 000 58 37 37 -13-13-12 000 75 14 15 -23.4 -25.6 28.43 8 12 81 279 001 97 20 28 -13-12-12 000 76 14 16 -21.9 -25.2 28.44 9 13 71 269 -002 86 28 46 -13-12-13 000 77 14 17 -19.3 -24.1 28.46 9 14 61 259 -004 71 98 96 -13-12-13 000 78 14 18 -17.9 -20.3 28.47 7 13 51 250 -003 95100100 -13-12-13 003 79 14 19 -16.3 -17.2 28.49 6 12 37 236 -003 112106 99 -12-12-14 002 80 14 20 -15.3 -16.3 28.50 4 10 50 248 -012 109109110 -12-13-14 001 81 14 21 -14.3 -15.6 28.52 2 6 57 255 -003 104110107 -13-13-13 002 82 14 22 -13.9 -15.4 28.54 4 5 58 256 -004 101113 64 -13-13-13 000 83 14 23 -14.0 -15.4 28.55 3 3 63 261 -001 101113 39 -13-13-13 000 84 15 00 -14.5 -15.7 28.56 5 6 37 236 -003 104114 37 -13-14-13 000 85 15 01 -14.8 -16.3 28.58 4 7 37 236 -005 102 73 26 -14-14-13 000 86 15 02 -15.7 -17.1 28.59 2 8 8 206 -001 104 51 26 -14-13-13 000 87 15 03 -16.7 -17.3 28.60 3 6 48 246 -002 117 72 29 -15-14-13 000 88 15 04 -17.5 -18.0 28.61 4 4 54 252 000 118 70 34 -15-14-14 000 89 15 05 -19.2 -19.9 28.62 4 7 12 211 -004 120 55 29 -15-14-14 000 90 15 06 -19.0 -19.6 28.63 6 9 333 172 -001 120 47 34 -16-14-13 000 91 15 07 -18.9 -19.4 28.65 6 9 312 151 -001 120 41 33 -17-14-13 000 92 15 08 -19.1 -19.6 28.65 5 8 298 136 001 120 36 36 -18-13-13 000 93 15 09 -19.7 -20.3 28.67 5 8 280 118 002 120 50 46 -17-14-13 000 94 15 10 -20.7 -21.3 28.67 5 6 263 102 -003 122 53 68 -15-13-13 000 95 15 11 -21.2 -21.9 28.68 5 7 240 78 001 122 35 76 -14-13-13 000 96 15 12 -22.3 -23.1 28.69 5 6 232 70 000 123 35 76 -14-13-14 000 97 15 13 -23.5 -24.3 28.69 5 5 221 59 000 124 38 81 -13-13-14 000 98 15 14 -24.6 -25.1 28.69 4 4 196 34 002 126 37 91 -13-14-14 000 99 15 15 -21.2 -21.9 28.69 3 7 108 307 001 112 41 95 -13-14-14 000 100 15 16 -19.3 -21.9 28.70 5 6 99 297 000 93 40 93 -13-13-14 000 101 15 17 -20.3 -22.9 28.70 6 7 105 304 000 91 40 70 -13-13-14 000 102 15 18 -19.7 -23.0 28.71 6 8 103 301 -004 84 48 41 -13-14-14 000 103 15 19 -20.4 -22.5 28.72 7 8 128 326 -001 99 63 28 -13-14-14 000 104 15 20 -19.3 -21.2 28.73 9 12 135 333 000 102 86 30 -14-14-13 000 105 15 21 -17.7 -18.3 28.73 6 14 142 340 -001 116105 35 -14-14-14 000 106 15 22 -17.9 -18.5 28.73 7 15 138 337 -001 118115 40 -13-15-14 000 107 15 23 -17.1 -17.5 28.73 7 14 138 336 002 117108 40 -13-14-13 000 108 16 00 -17.1 -17.6 28.74 8 16 120 319 001 117111 35 -13-14-14 000 109 16 01 -16.8 -17.2 28.74 9 16 115 313 001 117116 31 -14-15-14 000 110 16 02 -15.0 -15.8 28.74 10 15 112 311 000 111116 32 -14-15-14 000 111 16 03 -15.1 -15.7 28.73 8 12 116 314 000 112116 31 -14-15-15 000 112 16 04 -15.3 -15.6 28.73 7 12 119 317 001 116116 34 -14-15-16 000 113 16 05 -15.4 -15.8 28.73 6 11 127 326 -001 116116 39 -14-15-17 000 114 16 06 -15.7 -16.1 28.73 6 11 128 326 001 116116 55 -14-15-17 000 115 16 07 -15.9 -16.3 28.73 7 14 134 332 000 116117 68 -14-16-17 000 116 16 08 -16.4 -16.8 28.73 7 14 138 336 001 116117 61 -15-16-17 000 117 16 09 -16.8 -17.2 28.72 7 14 148 347 002 117117 69 -15-16-18 000 118 16 10 -16.7 -17.1 28.71 7 17 144 343 000 117118 61 -15-17-18 000 119 16 11 -16.6 -16.9 28.70 8 17 144 342 001 117118 66 -16-17-17 000 120 16 12 -16.8 -17.2 28.69 9 16 155 353 -001 117118 76 -16-17-17 000 * 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.