USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2026-05-02/12 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 02 12 -22.1 -25.6 28.34 8 17 204 43 000 69 67 82 -10-10 -9 000 1 02 13 -19.3 -21.2 28.36 11 19 171 10 000 102 78100 -11-10-10 000 2 02 14 -19.1 -20.9 28.34 10 18 166 4 005 103 77103 -9 -9-10 000 3 02 15 -16.8 -19.0 28.35 9 16 162 0 000 97 92 99 -9-10-10 005 4 02 16 -16.3 -18.3 28.37 8 15 155 353 -011 99100107 -10-10-11 021 5 02 17 -15.1 -16.8 28.38 5 10 120 318 007 100102110 -10-11-12 080 6 02 18 -14.2 -15.4 28.40 7 16 43 241 -004 105 94101 -12-12-13 046 7 02 19 -14.9 -15.7 28.40 7 12 30 229 -004 110 96105 -12-13-13 008 8 02 20 -16.3 -16.9 28.42 10 14 29 227 000 115100106 -13-13-14 011 9 02 21 -16.9 -17.7 28.44 8 16 11 210 -007 114 95101 -13-14-14 007 10 02 22 -16.5 -17.1 28.47 11 25 16 215 -009 114 99 94 -14-15-15 009 11 02 23 -16.8 -18.3 28.48 11 21 6 205 -011 104 78 83 -14-14-15 001 12 03 00 -18.6 -20.4 28.51 11 25 13 211 002 102 78108 -15-15-16 000 13 03 01 -19.9 -20.4 28.53 11 28 34 233 008 119 75 81 -16-16-16 000 14 03 02 -20.4 -20.9 28.54 12 32 46 245 013 121 91 99 -16-16-17 000 15 03 03 -19.9 -20.3 28.55 15 34 36 235 019 120 94 92 -16-16-17 001 16 03 04 -20.4 -20.8 28.56 14 34 35 233 019 121 90 88 -16-17-17 002 17 03 05 -20.2 -20.7 28.59 11 24 45 244 -017 120 87 88 -16-17-17 001 18 03 06 -21.8 -22.3 28.60 9 20 95 294 004 122 80 98 -16-16-17 001 19 03 07 -20.5 -21.7 28.61 8 18 92 290 000 112 78110 -17-16-17 000 20 03 08 -20.0 -21.7 28.62 7 11 97 296 -003 104 86 98 -16-16-17 000 21 03 09 -19.8 -21.5 28.63 5 8 103 301 -001 102 96 96 -15-16-17 000 22 03 10 -18.8 -21.3 28.64 4 9 113 311 -003 94 99101 -15-17-17 000 23 03 11 -18.5 -21.0 28.64 2 8 131 329 -005 93101 96 -16-16-16 000 24 03 12 -18.6 -19.9 28.65 4 9 168 6 -002 104 91 81 -15-15-16 000 25 03 13 -19.7 -20.0 28.65 5 8 160 359 -002 114 84 83 -14-15-16 000 26 03 14 -20.0 -20.0 28.67 6 8 132 330 -001 119 88 84 -15-15-16 000 27 03 15 -19.4 -19.4 28.68 3 6 114 312 003 119 81 91 -14-15-16 000 28 03 16 -20.5 -20.5 28.69 4 6 247 86 003 120 99 94 -15-16-17 000 29 03 17 -20.0 -20.0 28.72 4 6 243 81 -006 120 93102 -15-16-16 000 30 03 18 -20.7 -20.8 28.74 5 7 258 97 -002 118 90 96 -15-16-16 000 31 03 19 -20.1 -20.7 28.76 5 6 266 104 002 113 93 95 -15-16-17 000 32 03 20 -19.8 -20.7 28.77 3 7 260 98 000 108 93 97 -16-16-17 000 33 03 21 -19.6 -20.7 28.78 3 7 268 106 000 106 94 92 -16-16-17 000 34 03 22 -20.0 -21.0 28.80 3 8 296 134 000 107 99 92 -16-17-17 000 35 03 23 -21.9 -21.9 28.83 6 9 310 149 001 121108 88 -16-17-18 000 36 04 00 -23.2 -23.7 28.85 9 13 322 160 001 123107 85 -16-18-18 000 37 04 01 -23.7 -24.2 28.87 9 13 299 137 003 124111 86 -17-18-18 000 38 04 02 -23.8 -24.3 28.90 9 14 295 134 003 124109 82 -17-18-19 000 39 04 03 -24.2 -24.8 28.92 8 11 277 115 001 124107 89 -18-18-19 000 40 04 04 -24.0 -24.3 28.93 6 9 258 96 002 124108 75 -18-18-19 000 41 04 05 -24.8 -25.1 28.95 5 7 271 110 001 125112 59 -19-19-20 000 42 04 06 -24.1 -24.2 28.96 4 5 266 104 000 125114 66 -18-19-20 000 43 04 07 -23.7 -23.7 28.98 2 4 232 70 000 124108 72 -18-19-19 000 44 04 08 -23.3 -23.3 28.99 4 5 127 326 001 124101 74 -18-19-19 000 45 04 09 -25.0 -25.2 29.01 7 9 102 300 000 125 89 72 -18-19-19 000 46 04 10 -25.1 -25.5 29.02 7 10 96 294 000 125 82 69 -18-19-19 000 47 04 11 -24.7 -24.9 29.04 6 8 106 304 001 125 72 72 -18-18-19 000 48 04 12 -24.5 -24.6 29.05 6 8 117 316 000 124 70 73 -18-18-19 000 49 04 13 -25.1 -25.5 29.06 8 10 127 326 001 124 74 76 -18-18-19 000 50 04 14 -24.8 -25.3 29.07 10 14 131 329 001 125 76 76 -17-18-19 000 51 04 15 -24.0 -24.5 29.08 10 16 128 327 000 124 76 71 -17-18-19 000 52 04 16 -23.8 -24.2 29.08 11 17 137 335 -001 124 71 51 -17-17-18 000 53 04 17 -23.4 -23.9 29.08 12 20 131 330 000 122 63 50 -17-17-18 000 54 04 18 -23.3 -23.7 29.07 13 22 128 327 000 124 64 56 -17-17-18 000 55 04 19 -23.3 -23.8 29.06 14 25 128 327 001 124 61 59 -17-17-17 000 56 04 20 -22.5 -22.9 29.05 15 26 127 325 000 123 44 50 -17-16-16 000 57 04 21 -22.4 -22.8 29.04 15 26 129 327 000 123 45 42 -16-16-16 000 58 04 22 -22.4 -22.8 29.04 15 26 133 331 002 123 46 38 -16-16-16 000 59 04 23 -22.6 -23.0 29.03 14 25 141 339 004 124 44 37 -16-16-16 000 60 05 00 -23.6 -24.1 29.03 13 23 155 353 001 125 40 34 -16-16-16 000 61 05 01 -24.1 -24.6 29.02 14 25 166 4 000 126 41 32 -16-16-16 000 62 05 02 -23.6 -24.1 29.00 15 25 169 7 003 125 53 31 -17-16-16 000 63 05 03 -23.5 -24.0 28.98 14 25 181 20 -001 125 76 30 -17-16-16 000 64 05 04 -23.6 -24.1 28.97 15 28 184 23 000 125109 28 -18-16-16 000 65 05 05 -22.9 -23.3 28.96 17 29 180 19 004 125116 29 -18-17-17 000 66 05 06 -23.0 -23.5 28.94 17 29 187 26 000 125116 39 -18-17-16 000 67 05 07 -22.9 -23.3 28.93 17 29 191 29 -001 125117 47 -17-17-16 000 68 05 08 -23.2 -23.6 28.92 17 29 195 34 -001 125112 44 -18-16-16 000 69 05 09 -24.1 -24.5 28.90 17 27 196 34 000 126108 39 -18-16-16 000 70 05 10 -24.8 -25.3 28.87 16 27 195 33 000 127 97 36 -18-15-16 000 71 05 11 -25.3 -25.8 28.86 13 25 203 42 000 128 93 27 -17-15-16 000 72 05 12 -25.3 -25.8 28.84 12 22 210 48 003 127 90 21 -16-15-15 000 73 05 13 -24.1 -24.6 28.83 11 19 210 48 001 126 82 23 -16-15-15 000 74 05 14 -24.2 -24.8 28.82 9 15 202 40 004 126 66 28 -15-14-14 000 75 05 15 -24.7 -25.3 28.81 9 16 188 26 002 125 59 23 -15-14-15 000 76 05 16 -24.3 -24.8 28.80 10 19 177 16 002 125 53 17 -15-14-14 000 77 05 17 -24.7 -25.3 28.79 11 20 179 18 001 126 35 16 -15-14-14 000 78 05 18 -24.5 -25.0 28.78 12 21 180 19 001 126 17 16 -15-14-14 000 79 05 19 -24.4 -25.0 28.78 12 21 181 20 -001 126 19 15 -15-14-14 000 80 05 20 -24.3 -26.0 28.77 11 19 181 20 001 109 18 17 -14-14-14 000 81 05 21 -23.7 -25.6 28.77 11 19 180 18 000 106 29 19 -15-14-14 000 82 05 22 -23.2 -24.5 28.76 11 18 185 23 -001 111 35 20 -15-14-14 000 83 05 23 -23.8 -24.8 28.76 11 18 193 31 -003 117 31 21 -15-14-14 000 84 06 00 -23.8 -25.4 28.75 11 17 205 44 002 109 43 21 -15-15-14 000 85 06 01 -21.9 -22.3 28.74 10 17 209 48 000 123 57 21 -15-15-14 000 86 06 02 -21.1 -21.5 28.73 10 17 212 51 000 122 84 19 -16-15-14 000 87 06 03 -20.3 -20.7 28.71 11 19 212 51 000 121 87 18 -16-15-14 000 88 06 04 -19.9 -20.4 28.71 11 19 212 50 000 121 86 19 -17-15-13 000 89 06 05 -19.8 -20.3 28.69 11 19 214 52 000 121 59 21 -16-14-13 000 90 06 06 -20.9 -21.3 28.67 11 19 220 58 001 122 65 20 -16-14-12 000 91 06 07 -20.6 -21.1 28.65 11 19 223 61 000 122 72 22 -16-15-13 000 92 06 08 -21.0 -21.4 28.64 12 19 220 59 -002 122 68 17 -17-14-12 000 93 06 09 -21.1 -21.5 28.63 11 17 213 52 -002 122 65 18 -17-14-13 000 94 06 10 -21.0 -21.4 28.61 10 17 221 60 -001 122 49 26 -17-13-12 000 95 06 11 -20.6 -21.1 28.59 11 15 228 67 002 122 37 28 -16-13-12 000 96 06 12 -20.8 -21.2 28.58 11 14 229 67 000 122 29 28 -15-13-13 000 97 06 13 -21.4 -21.8 28.56 11 14 221 59 -002 123 28 27 -14-13-13 000 98 06 14 -22.1 -22.5 28.55 10 12 222 61 000 123 17 38 -13-13-13 000 99 06 15 -22.2 -22.7 28.52 9 12 220 58 000 124 23 54 -12-13-13 000 100 06 16 -22.5 -22.9 28.51 8 10 215 53 000 124 34 78 -13-13-13 000 101 06 17 -23.4 -23.9 28.49 7 8 218 56 000 125 39 84 -13-13-13 000 102 06 18 -24.6 -25.2 28.48 7 8 204 42 000 127 57 82 -15-14-14 000 103 06 19 -26.0 -26.8 28.46 6 7 205 43 -001 128 32 81 -15-13-13 000 104 06 20 -26.8 -27.7 28.44 5 6 212 51 000 129 20 77 -13-13-13 000 105 06 21 -27.1 -28.0 28.43 7 8 211 49 001 128 27 69 -13-13-14 000 106 06 22 -28.4 -29.3 28.41 6 8 202 41 000 131 49 71 -16-13-13 000 107 06 23 -27.8 -28.5 28.40 6 8 210 49 001 131 65 74 -16-13-13 000 108 07 00 -26.5 -27.3 28.39 7 8 203 41 -001 129 71 78 -15-13-14 000 109 07 01 -25.9 -26.5 28.37 5 9 209 47 001 124 93 86 -14-14-14 000 110 07 02 -25.0 -25.8 28.36 6 8 191 29 000 125 98 86 -16-14-14 000 111 07 03 -27.3 -28.0 28.35 4 5 199 37 -001 129 92 90 -18-14-14 000 112 07 04 -27.2 -27.4 28.33 3 3 244 83 -001 129 85 87 -17-14-14 000 113 07 05 -26.0 -26.0 28.32 3 4 239 78 -001 127 85 78 -17-14-14 000 114 07 06 -27.5 -28.2 28.30 7 9 244 82 000 128 83 80 -15-13-14 000 115 07 07 -26.9 -27.9 28.29 4 6 222 60 000 129103 67 -18-14-14 000 116 07 08 -26.5 -27.4 28.28 3 3 239 78 000 129106 76 -19-14-14 000 117 07 09 -25.8 -26.5 28.27 1 2 282 120 -001 128107 77 -20-14-14 000 118 07 10 -25.5 -26.3 28.27 3 4 22 220 000 128105 68 -20-14-14 000 119 07 11 -26.1 -26.5 28.26 5 6 354 192 000 129 73 71 -22-14-14 000 120 07 12 -25.7 -26.2 28.25 6 8 339 177 001 128 77 71 -21-14-15 000 * 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.