USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2026-06-12/12 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 12 12 -37.8 -42.0 28.79 2 2 272 110 000 78 67 34 -28-28-28 000 1 12 13 -34.1 -36.3 28.78 3 4 205 43 000 103 60 31 -28-28-28 000 2 12 14 -34.1 -37.1 28.80 3 5 193 31 000 96 53 30 -28-28-28 000 3 12 15 -34.0 -37.5 28.81 3 4 176 15 000 90 52 29 -28-28-28 000 4 12 16 -34.0 -37.5 28.82 3 3 158 356 000 90 49 31 -28-28-28 000 5 12 17 -34.6 -35.8 28.83 2 2 119 318 000 116 41 32 -28-28-28 000 6 12 18 -34.5 -34.9 28.82 2 3 120 318 000 124 39 30 -28-28-28 000 7 12 19 -35.1 -36.6 28.85 3 3 131 329 000 113 39 29 -28-28-27 000 8 12 20 -35.0 -35.7 28.82 5 6 113 311 000 124 37 28 -28-27-27 000 9 12 21 -34.6 -35.1 28.81 6 8 100 298 001 127 43 31 -28-27-27 000 10 12 22 -34.4 -34.5 28.81 5 7 95 294 001 132 49 38 -27-27-27 000 11 12 23 -34.0 -34.1 28.84 5 7 95 293 000 132 56 47 -27-27-27 000 12 13 00 -33.6 -33.8 28.82 4 5 99 298 000 129 62 56 -27-28-27 000 13 13 01 -33.1 -33.5 28.82 3 3 116 314 000 125 69 65 -28-28-27 000 14 13 02 -33.1 -33.4 28.84 3 5 146 345 000 126 63 77 -28-27-27 000 15 13 03 -33.3 -33.5 28.84 6 9 163 2 000 128 62 83 -27-27-27 000 16 13 04 -34.5 -34.5 28.84 6 8 147 345 000 136 70 86 -27-27-27 000 17 13 05 -35.6 -35.6 28.84 7 9 130 328 001 138 72 90 -27-27-27 000 18 13 06 -35.7 -35.8 28.84 9 11 126 324 000 138 81 91 -27-27-27 000 19 13 07 -35.5 -35.7 28.83 9 11 124 322 000 138 80 89 -27-27-27 000 20 13 08 -35.3 -35.7 28.83 9 11 122 320 000 134 82 85 -27-27-27 000 21 13 09 -35.2 -35.8 28.83 9 11 123 321 001 129 88 84 -26-27-27 000 22 13 10 -35.2 -35.9 28.83 9 12 123 321 000 128 91 81 -26-27-27 000 23 13 11 -35.2 -36.1 28.84 9 13 122 320 000 126 90 77 -26-26-26 000 24 13 12 -35.2 -36.3 28.83 10 13 120 318 000 124 88 73 -26-26-26 000 25 13 13 -35.2 -36.3 28.83 10 14 118 317 000 124 86 69 -26-26-26 000 26 13 14 -35.1 -36.3 28.82 10 15 118 317 000 124 85 65 -26-26-26 000 27 13 15 -35.0 -36.2 28.83 10 16 118 316 000 125 82 63 -25-26-26 000 28 13 16 -34.8 -36.1 28.82 11 17 117 315 000 126 78 62 -25-25-26 000 29 13 17 -34.7 -36.0 28.81 11 17 115 313 000 126 75 59 -25-25-25 000 30 13 18 -34.6 -35.9 28.79 11 18 112 311 000 126 73 56 -25-25-25 000 31 13 19 -34.3 -35.7 28.80 11 18 112 311 000 124 69 54 -25-25-25 000 32 13 20 -34.1 -35.4 28.79 11 19 113 311 000 124 64 51 -25-24-24 000 33 13 21 -33.9 -35.2 28.77 12 19 112 310 000 124 62 48 -25-24-24 000 34 13 22 -33.5 -34.9 28.76 12 20 111 310 000 124 60 48 -24-24-23 000 35 13 23 -33.2 -34.6 28.75 12 20 111 309 000 123 56 43 -24-23-23 000 36 14 00 -32.7 -34.2 28.73 12 21 111 310 000 121 53 35 -24-23-22 000 37 14 01 -32.2 -34.0 28.71 13 21 111 309 000 117 51 33 -24-22-22 000 38 14 02 -31.5 -33.6 28.70 13 21 110 309 000 113 49 34 -23-22-21 000 39 14 03 -31.7 -33.6 28.68 13 22 112 310 000 116 46 36 -23-21-21 000 40 14 04 -31.6 -33.4 28.67 14 23 111 309 000 117 44 42 -23-21-20 000 41 14 05 -31.3 -33.0 28.65 14 24 111 309 000 117 44 58 -22-20-19 000 42 14 06 -30.9 -32.7 28.63 15 25 112 311 000 116 43 75 -22-20-19 000 43 14 07 -30.2 -32.1 28.61 15 26 113 312 000 113 42 73 -21-19-18 000 44 14 08 -29.6 -31.8 28.58 16 27 113 311 000 110 39 70 -21-18-18 000 45 14 09 -29.1 -31.4 28.56 16 26 110 308 000 108 39 70 -21-18-17 000 46 14 10 -28.0 -30.7 28.54 16 26 110 309 000 102 31 69 -20-18-17 000 47 14 11 -27.1 -30.2 28.52 16 27 110 308 001 97 60 78 -20-19-17 000 48 14 12 -26.3 -29.4 28.52 17 27 110 309 000 96 88 81 -20-19-18 000 49 14 13 -25.9 -28.6 28.49 16 26 113 311 000 99101 98 -20-19-19 003 50 14 14 -25.2 -27.5 28.47 16 25 116 315 000 104105 99 -19-19-18 003 51 14 15 -25.0 -27.0 28.47 16 25 114 313 000 108103 99 -19-19-18 003 52 14 16 -24.6 -26.6 28.46 16 26 110 309 -003 108100 94 -19-18-17 002 53 14 17 -24.5 -26.1 28.44 16 25 106 304 -002 112 97 98 -18-17-16 001 54 14 18 -24.1 -26.1 28.43 15 23 100 298 -001 107 98 98 -18-16-16 001 55 14 19 -23.7 -25.0 28.42 12 18 97 295 -005 115 95101 -18-16-16 000 56 14 20 -22.8 -23.4 28.42 9 14 93 291 -004 123 94103 -17-15-16 000 57 14 21 -22.3 -23.2 28.42 8 11 86 285 000 118 95103 -16-16-16 002 58 14 22 -22.2 -23.4 28.43 7 9 77 275 001 115 95103 -16-16-16 006 59 14 23 -21.9 -23.1 28.43 6 8 66 265 001 113 93101 -15-16-16 008 60 15 00 -21.2 -21.8 28.44 4 6 60 258 000 117 94103 -15-16-17 002 61 15 01 -20.5 -21.0 28.46 3 6 48 246 -006 117107107 -16-17-17 002 62 15 02 -20.0 -20.7 28.46 1 4 41 240 000 112 94108 -16-16-17 004 63 15 03 -19.2 -20.2 28.47 2 3 40 238 -001 111100104 -16-17-18 005 64 15 04 -19.9 -20.6 28.49 5 7 52 250 000 114103105 -16-17-18 007 65 15 05 -22.2 -22.7 28.51 5 12 24 222 000 119109115 -17-18-19 006 66 15 06 -22.5 -22.8 28.51 6 17 0 199 -003 121101109 -19-18-19 004 67 15 07 -23.6 -24.1 28.52 9 18 358 196 -005 123102112 -20-19-19 001 68 15 08 -24.5 -25.0 28.53 11 23 0 199 000 126122111 -21-21-20 002 69 15 09 -25.2 -25.8 28.55 10 23 20 218 -013 127103115 -21-22-22 001 70 15 10 -26.0 -26.5 28.55 10 18 39 238 -009 127 93104 -21-21-20 000 71 15 11 -26.7 -27.4 28.55 9 15 33 231 -009 128100 68 -21-21-21 000 72 15 12 -26.5 -27.0 28.56 10 16 29 227 -009 127 93 80 -21-21-22 000 73 15 13 -25.7 -26.2 28.57 7 20 31 229 -007 121102 99 -21-22-23 001 74 15 14 -25.0 -25.3 28.56 5 14 67 266 -003 123103104 -21-21-22 002 75 15 15 -26.4 -26.6 28.57 7 16 79 278 -007 126105102 -20-21-22 001 76 15 16 -25.9 -26.4 28.56 10 17 83 282 -008 126103106 -20-21-21 001 77 15 17 -25.4 -25.9 28.56 11 19 90 288 -005 126101107 -20-20-21 000 78 15 18 -24.3 -24.9 28.55 11 18 100 298 000 126 93 99 -19-20-20 001 79 15 19 -23.6 -24.1 28.54 10 16 108 306 006 125 91101 -18-19-20 001 80 15 20 -23.6 -24.1 28.52 10 16 116 314 009 125 89102 -18-18-19 001 81 15 21 -23.2 -23.7 28.50 10 18 118 317 008 124 84101 -18-18-19 001 82 15 22 -21.5 -22.0 28.49 12 21 109 308 003 122 96 97 -19-18-18 000 83 15 23 -20.9 -21.3 28.46 12 23 103 301 -002 122108 91 -18-19-18 000 84 16 00 -19.6 -20.1 28.44 14 25 99 297 -006 120101 87 -17-18-17 000 85 16 01 -18.9 -19.8 28.43 15 25 97 295 -008 113 98 91 -17-17-17 006 86 16 02 -18.7 -19.9 28.41 15 24 100 298 -007 109102 88 -16-17-16 012 87 16 03 -18.3 -19.4 28.38 14 21 109 308 002 111 81 81 -16-14-14 007 88 16 04 -18.3 -18.7 28.36 17 26 110 309 -001 118 89 84 -16-15-14 001 89 16 05 -17.4 -19.0 28.34 20 29 116 315 000 104 87 95 -15-14-14 002 90 16 06 -17.2 -18.9 28.31 20 30 112 311 -005 102 93 98 -14-13-14 012 91 16 07 -17.0 -18.8 28.29 21 32 110 309 000 101103102 -15-14-15 031 92 16 08 -18.5 -20.5 28.29 19 30 95 293 008 101107104 -16-15-16 058 93 16 09 -18.8 -20.5 28.28 14 25 87 286 000 104109104 -16-17-18 041 94 16 10 -19.6 -20.9 28.28 12 19 94 292 -007 110115113 -17-17-18 015 95 16 11 -19.9 -20.8 28.28 9 14 82 281 -011 115108104 -16-17-18 005 96 16 12 -20.1 -20.6 28.28 5 7 89 287 -011 120100101 -15-16-17 002 97 16 13 -19.8 -20.1 28.29 5 8 81 279 -007 119 99119 -15-16-16 000 98 16 14 -19.2 -19.8 28.28 8 14 87 285 000 119 94105 -15-15-16 001 99 16 15 -18.8 -19.3 28.28 11 17 87 286 -023 119 93101 -15-15-16 001 100 16 16 -17.9 -18.3 28.27 10 19 100 299 -009 118102106 -15-15-16 000 101 16 17 -18.7 -19.2 28.27 11 20 93 291 012 119113 99 -16-16-16 002 102 16 18 -18.2 -18.6 28.25 16 29 69 267 033 118105 79 -15-15-15 007 103 16 19 -16.7 -17.7 28.25 19 30 61 259 019 110104 81 -15-16-15 015 104 16 20 -16.3 -17.5 28.25 20 29 59 258 036 107 98 79 -15-15-15 018 105 16 21 -16.1 -17.1 28.24 19 28 55 253 024 108 93 76 -15-15-15 016 106 16 22 -16.0 -17.1 28.23 21 29 53 251 024 107 87 72 -15-14-15 009 107 16 23 -16.4 -17.1 28.21 22 31 55 254 027 112 88 64 -15-14-14 005 108 17 00 -16.0 -17.6 28.18 28 37 55 253 052 102 87 49 -15-15-13 001 109 17 01 -16.9 -18.4 28.19 18 30 62 260 018 104 94 70 -15-15-15 001 110 17 02 -17.0 -18.8 28.19 14 25 77 275 012 101 96 89 -14-15-16 005 111 17 03 -16.4 -18.7 28.17 13 27 99 297 001 94 95106 -14-15-16 014 112 17 04 -16.8 -19.1 28.15 13 27 110 309 -001 95 86114 -13-14-15 008 113 17 05 -17.4 -19.3 28.14 14 29 108 307 009 100 90107 -13-14-15 001 114 17 06 -17.2 -19.3 28.12 14 27 111 309 014 98 84101 -13-14-15 002 115 17 07 -16.1 -18.9 28.09 16 30 116 315 013 90 77 94 -13-13-14 000 116 17 08 -15.3 -18.7 28.08 18 29 114 312 010 84 76 89 -13-13-14 000 117 17 09 -15.3 -17.8 28.07 18 30 115 314 007 93 81 84 -13-14-14 000 118 17 10 -15.6 -19.9 28.05 18 32 113 312 004 76 86 77 -13-14-14 000 119 17 11 -16.7 -20.6 28.05 19 31 109 307 002 81 60 84 -14-13-14 000 120 17 12 -16.1 -20.1 28.04 18 29 110 308 000 80 75 99 -14-14-15 002 * 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.