USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2026-05-01/12 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 01 12 -29.4 -35.8 28.60 20 40 151 349 000 34 23 58 -22-21-20 000 1 01 13 -27.7 -34.4 28.58 26 41 142 340 000 62 21 52 -23-21-20 000 2 01 14 -28.6 -35.1 28.55 26 42 149 347 -002 65 20 46 -23-21-19 000 3 01 15 -28.5 -34.9 28.53 27 42 149 347 -002 65 20 47 -23-21-20 000 4 01 16 -28.7 -34.9 28.50 25 41 152 350 -005 67 20 48 -22-20-19 000 5 01 17 -28.5 -34.7 28.47 24 40 152 351 -003 66 18 41 -22-20-19 000 6 01 18 -28.5 -34.8 28.48 24 39 157 356 -007 67 16 81 -21-19-18 000 7 01 19 -28.9 -35.1 28.44 24 39 159 357 -002 66 22 97 -20-18-17 000 8 01 20 -29.0 -35.0 28.42 22 35 160 358 -001 69 19 95 -19-17-16 000 9 01 21 -29.2 -35.2 28.42 19 34 159 358 001 69 13 98 -19-17-16 000 10 01 22 -29.2 -35.3 28.42 19 33 163 1 -002 67 13 99 -18-16-16 000 11 01 23 -28.8 -35.1 28.42 19 31 165 3 -002 66 26105 -17-15-16 000 12 02 00 -28.8 -34.9 28.40 18 29 168 6 000 68 56107 -17-15-16 000 13 02 01 -31.8 -37.3 28.39 15 30 173 11 003 75 59106 -15-15-16 000 14 02 02 -32.6 -37.8 28.40 13 29 172 11 001 77 58 95 -15-14-15 000 15 02 03 -29.8 -35.3 28.39 14 27 159 358 001 73 89 94 -14-13-14 000 16 02 04 -25.7 -31.6 28.38 13 26 147 346 004 67 86 77 -13-13-14 000 17 02 05 -22.5 -28.1 28.39 13 23 143 342 004 68 68 79 -12-12-13 000 18 02 06 -20.9 -25.9 28.38 12 23 144 343 003 72 60 75 -11-11-12 000 19 02 07 -19.1 -24.0 28.37 12 23 137 335 003 72 55 80 -11-11-11 000 20 02 08 -18.0 -22.6 28.36 12 22 134 333 000 73 54 96 -10-10-11 000 21 02 09 -17.4 -22.3 28.35 11 20 141 339 002 70 48 88 -9 -9-11 000 22 02 10 -18.2 -22.6 28.35 11 17 148 346 001 74 54 82 -9 -9-11 000 23 02 11 -18.2 -21.8 28.34 11 18 145 343 000 82 58 78 -9-10-11 000 24 02 12 -16.9 -19.6 28.34 10 18 142 340 000 91 63 83 -9-10-11 000 25 02 13 -15.9 -19.9 28.33 10 17 137 336 -001 76 60 84 -9 -9-11 000 26 02 14 -15.6 -19.8 28.33 9 15 137 336 000 74 57 75 -8 -9-10 000 27 02 15 -16.7 -21.0 28.33 10 14 142 340 000 71 55 72 -9 -9-10 000 28 02 16 -17.0 -21.2 28.32 9 14 147 345 000 74 57 92 -9-10-11 000 29 02 17 -16.5 -20.0 28.33 8 12 130 328 001 81 55 98 -10-10-11 000 30 02 18 -16.5 -17.7 28.34 7 11 58 256 -007 108 87100 -12-11-12 002 31 02 19 -17.5 -19.1 28.34 5 6 16 214 -006 104 91100 -12-11-12 008 32 02 20 -16.8 -18.6 28.35 4 8 359 197 001 101100107 -12-12-13 019 33 02 21 -16.9 -18.5 28.36 5 7 12 210 000 103103101 -12-14-13 031 34 02 22 -18.7 -19.9 28.38 8 11 20 218 002 111104111 -13-13-14 011 35 02 23 -19.0 -19.8 28.40 9 18 16 214 -005 115100111 -13-14-14 009 36 03 00 -20.1 -20.6 28.43 9 20 22 220 -004 119100 93 -14-14-15 003 37 03 01 -19.7 -20.2 28.46 10 17 47 245 -003 119 77109 -13-14-15 000 38 03 02 -19.2 -19.7 28.48 10 18 56 255 -004 120 90 78 -14-14-16 000 39 03 03 -19.6 -20.2 28.50 8 16 58 256 003 120108 97 -14-15-16 003 40 03 04 -19.7 -20.4 28.50 7 20 65 263 001 111 66 95 -13-15-16 001 41 03 05 -20.6 -21.4 28.52 8 18 74 272 -003 111 75101 -15-16-16 000 42 03 06 -20.2 -21.8 28.54 8 15 92 291 000 102 84111 -15-16-16 000 43 03 07 -18.9 -21.5 28.54 6 12 79 277 -006 90 76115 -14-15-16 000 44 03 08 -17.8 -21.1 28.55 5 10 104 302 -005 86 79120 -14-15-16 000 45 03 09 -17.4 -21.2 28.54 3 9 120 318 -004 81 79113 -14-15-16 000 46 03 10 -17.6 -20.9 28.54 4 9 150 348 000 84 87 88 -14-15-16 000 47 03 11 -19.9 -21.3 28.54 7 12 165 3 001 101 82 82 -14-14-16 000 48 03 12 -20.9 -21.7 28.54 8 11 170 8 000 110 81 74 -14-14-16 000 49 03 13 -20.6 -21.0 28.54 7 11 179 17 000 120 80 75 -13-14-15 000 50 03 14 -20.4 -20.5 28.54 6 9 182 20 000 119 69 76 -13-14-15 000 51 03 15 -18.7 -18.7 28.56 3 5 177 16 000 118 62 79 -12-13-15 000 52 03 16 -19.0 -19.0 28.57 4 4 275 114 002 118 60 81 -12-13-14 000 53 03 17 -20.7 -20.8 28.59 6 7 275 113 001 119 59 84 -12-13-14 000 54 03 18 -20.9 -21.2 28.62 9 11 281 119 001 119 60 88 -13-13-14 000 55 03 19 -20.6 -21.1 28.64 9 14 295 133 -002 120 61 94 -13-14-15 000 56 03 20 -19.9 -20.3 28.66 11 16 302 140 002 119 70102 -14-14-15 000 57 03 21 -20.0 -20.5 28.69 10 15 307 146 -001 119 78101 -14-15-16 000 58 03 22 -21.2 -21.7 28.72 10 17 336 174 000 121 88 98 -15-16-17 000 59 03 23 -22.2 -22.7 28.75 14 24 337 176 000 124 91 99 -16-16-17 000 60 04 00 -22.1 -22.5 28.78 15 23 332 170 001 123 97103 -17-16-17 000 61 04 01 -22.1 -22.5 28.81 13 19 325 163 -001 123 98103 -17-17-17 000 62 04 02 -22.1 -22.6 28.84 11 16 322 160 -002 122 98100 -16-17-18 002 63 04 03 -22.7 -23.2 28.86 8 13 324 162 001 124 99 87 -17-17-18 001 64 04 04 -25.0 -25.7 28.89 8 14 334 172 002 126 91 49 -18-18-18 000 65 04 05 -25.4 -26.0 28.91 9 13 343 182 000 126 69 39 -19-18-18 000 66 04 06 -26.4 -27.3 28.94 8 13 336 174 -003 121 67 43 -19-18-18 000 67 04 07 -25.4 -27.1 28.97 7 11 322 161 -002 107 61 51 -18-18-18 000 68 04 08 -23.7 -25.4 29.00 5 10 341 179 -002 106 68 68 -18-19-19 000 69 04 09 -23.8 -25.2 29.02 4 7 22 221 -002 108 68 72 -18-18-19 000 70 04 10 -22.7 -25.3 29.04 2 4 136 335 000 93 66 65 -17-18-19 000 71 04 11 -24.0 -26.4 29.05 7 14 104 302 000 93 75 72 -18-19-19 000 72 04 12 -25.2 -27.0 29.06 11 16 105 304 002 104 82 68 -18-18-18 000 73 04 13 -24.4 -26.2 29.07 11 18 107 306 -005 105 72 70 -17-17-17 000 74 04 14 -24.3 -26.1 29.07 11 19 115 314 -006 107 69 62 -16-16-17 000 75 04 15 -23.4 -25.4 29.07 13 22 123 322 -005 104 65 51 -14-16-16 000 76 04 16 -22.8 -25.0 29.08 15 25 127 325 -003 102 57 48 -14-15-16 000 77 04 17 -21.9 -22.4 29.08 15 26 132 330 000 120 56 41 -14-15-15 000 78 04 18 -21.2 -25.4 29.08 14 24 134 332 -001 78 55 35 -14-14-15 000 79 04 19 -20.4 -24.2 29.07 13 23 139 338 -001 82 45 44 -13-14-15 000 80 04 20 -19.9 -24.1 29.07 15 28 139 338 000 78 41 46 -13-13-14 000 81 04 21 -20.2 -25.2 29.06 17 31 138 336 000 73 40 52 -13-13-14 000 82 04 22 -19.5 -25.3 29.05 18 34 137 336 -002 66 36 53 -13-13-14 000 83 04 23 -19.2 -25.4 29.04 17 33 140 338 -004 62 37 47 -13-13-14 000 84 05 00 -19.0 -25.4 29.03 17 34 147 346 -002 61 34 39 -12-12-13 000 85 05 01 -19.5 -25.9 29.02 19 36 152 350 -002 62 30 43 -12-12-13 000 86 05 02 -20.2 -26.1 28.99 17 33 154 353 -003 65 30 37 -12-12-13 000 87 05 03 -18.8 -24.9 28.97 16 31 158 357 000 63 30 43 -12-12-12 000 88 05 04 -17.9 -24.5 28.96 15 28 168 6 001 59 27 50 -12-12-12 000 89 05 05 -18.7 -25.2 28.94 13 23 179 18 000 59 23 43 -11-11-11 000 90 05 06 -19.2 -25.8 28.92 12 24 177 15 001 58 19 37 -11-10-11 000 91 05 07 -18.9 -25.6 28.90 13 24 173 11 000 57 18 27 -10-10-11 000 92 05 08 -18.0 -24.4 28.89 12 23 170 8 000 59 31 31 -9-10-11 000 93 05 09 -17.6 -23.5 28.87 12 21 172 10 000 63 31 35 -9 -9-10 000 94 05 10 -18.1 -24.0 28.86 11 22 171 9 001 63 31 39 -9 -9-10 000 95 05 11 -18.6 -23.4 28.86 12 22 176 15 -001 74 41 45 -10 -9-10 000 96 05 12 -18.9 -23.1 28.85 11 22 187 26 000 79 47 50 -11 -9-10 000 97 05 13 -20.5 -23.7 28.84 11 21 195 34 000 90 44 49 -10 -9-10 000 98 05 14 -22.9 -24.9 28.83 11 22 198 37 000 105 48 44 -9 -9-10 000 99 05 15 -23.8 -25.2 28.82 12 20 188 26 002 112 47 46 -9 -9-10 000 100 05 16 -23.5 -24.8 28.82 12 21 184 22 001 114 55 47 -10 -9 -9 000 101 05 17 -23.5 -24.6 28.81 12 22 183 21 000 117 49 64 -9 -9 -9 000 102 05 18 -23.7 -24.6 28.80 12 21 186 24 001 120 47 63 -10 -8 -9 000 103 05 19 -24.5 -25.1 28.80 13 23 191 29 001 124 51 57 -11 -9 -9 000 104 05 20 -24.5 -25.2 28.80 13 24 192 31 001 123 56 53 -11 -9 -9 000 105 05 21 -24.6 -25.2 28.79 14 25 197 35 000 124 59 48 -12-10 -9 000 106 05 22 -24.3 -24.9 28.79 14 27 195 34 000 124 60 51 -12-10 -9 000 107 05 23 -24.5 -25.0 28.79 14 30 198 36 000 126 53 47 -12-10-10 000 108 06 00 -25.0 -25.5 28.79 14 30 205 43 -003 127 50 41 -12-10-10 000 109 06 01 -25.6 -26.0 28.78 15 30 208 46 -004 128 44 36 -13-10-10 000 110 06 02 -25.7 -26.2 28.78 15 31 207 45 -006 128 35 36 -14-11-11 000 111 06 03 -25.7 -26.2 28.78 16 31 208 46 -005 128 30 28 -15-11-11 000 112 06 04 -25.7 -26.2 28.78 17 32 208 47 -005 128 35 18 -16-12-11 000 113 06 05 -25.3 -25.7 28.78 18 33 207 46 -009 127 37 15 -17-13-12 000 114 06 06 -24.4 -24.8 28.78 19 37 205 44 -012 126 56 11 -17-14-12 000 115 06 07 -24.1 -24.6 28.77 19 37 205 43 -006 126 76 12 -18-15-12 000 116 06 08 -22.5 -23.0 28.77 20 36 203 42 -013 124 59 12 -17-15-14 000 117 06 09 -21.6 -22.1 28.77 20 35 201 40 -006 123 44 14 -17-15-14 000 118 06 10 -21.3 -21.7 28.76 21 35 199 37 -006 123 73 15 -18-15-13 000 119 06 11 -22.9 -26.2 28.75 20 35 207 46 -004 91 49 15 -17-15-14 000 120 06 12 -22.7 -23.1 28.74 20 34 206 44 000 124 44 15 -17-15-14 000 * 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.