USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2026-01-10/12 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 10 12 -8.6 -9.7 29.03 5 14 10 209 000 94 90 88 -8 -9-10 000 1 10 13 -8.3 -8.5 29.03 9 15 356 195 000 108110 89 -8-10-11 000 2 10 14 -8.7 -8.9 29.04 8 14 359 197 000 108101 87 -8 -9-10 000 3 10 15 -8.0 -8.2 29.04 9 13 355 193 001 108106 89 -9 -9-10 000 4 10 16 -7.8 -8.0 29.05 8 12 1 200 001 108110 87 -8-10-11 000 5 10 17 -7.5 -8.2 29.05 8 11 0 198 000 101110 85 -9-10-11 000 6 10 18 -7.3 -8.6 29.05 8 11 356 194 001 96110 85 -9-10-11 000 7 10 19 -7.1 -8.5 29.04 8 10 5 203 001 95109 87 -8-10-11 000 8 10 20 -7.8 -8.1 29.05 7 9 2 201 001 106 94 80 -8 -9-10 000 9 10 21 -8.0 -8.0 29.05 5 7 359 198 001 108 97 84 -8 -9-10 000 10 10 22 -7.7 -7.7 29.05 5 6 2 201 000 108 90 93 -8 -9-10 000 11 10 23 -7.3 -7.3 29.03 4 6 1 199 000 107 84106 -8 -9-10 000 12 11 00 -6.8 -7.9 29.02 3 3 3 202 -001 97 85115 -8 -9-10 000 13 11 01 -6.5 -8.2 29.02 3 3 24 222 -001 92 82111 -8 -9-10 000 14 11 02 -6.6 -8.1 29.01 3 3 36 234 000 94 93113 -8 -9-10 000 15 11 03 -6.9 -8.1 29.02 2 3 49 247 000 96 79114 -8 -9-10 000 16 11 04 -7.0 -8.1 29.01 3 4 57 255 001 97 82112 -8 -9-10 000 17 11 05 -8.1 -8.6 29.00 2 5 82 281 001 107 81 97 -8 -9-10 000 18 11 06 -9.0 -9.4 28.98 3 6 97 296 000 108 82 94 -8 -9-10 000 19 11 07 -10.3 -10.8 28.96 3 7 111 309 000 110 81104 -8 -9-10 000 20 11 08 -11.1 -11.6 28.94 5 10 113 312 000 110 84 97 -8 -9-10 000 21 11 09 -11.2 -11.6 28.93 6 11 111 309 001 110 85 95 -8 -9-10 000 22 11 10 -11.6 -12.0 28.91 7 11 120 318 000 110 83 95 -8 -9-10 000 23 11 11 -11.7 -12.0 28.89 8 13 119 318 000 111 86 89 -8 -9-11 000 24 11 12 -12.0 -12.3 28.88 8 15 129 327 000 111 89 83 -8 -9-11 000 25 11 13 -11.2 -11.4 28.86 10 15 138 337 -001 111 93 77 -9-10-11 000 26 11 14 -10.4 -10.6 28.86 11 14 136 334 -001 110 91 76 -9-10-11 000 27 11 15 -10.0 -10.2 28.84 12 17 130 328 000 110 96 74 -10-10-11 000 28 11 16 -9.1 -9.9 28.81 14 19 125 324 001 102111 67 -10-11-11 000 29 11 17 -9.6 -10.9 28.79 15 20 121 319 000 98100 60 -10-11-12 000 30 11 18 -9.4 -10.8 28.78 15 21 122 321 003 97107 56 -10-11-13 000 31 11 19 -8.9 -10.6 28.76 16 20 123 322 002 93112 53 -10-12-13 000 32 11 20 -8.9 -10.7 28.75 15 20 127 325 000 93112 52 -10-12-13 000 33 11 21 -8.4 -10.2 28.74 17 21 125 324 000 93111 49 -10-11-13 000 34 11 22 -8.2 -10.1 28.73 17 21 124 323 000 92110 50 -10-11-12 000 35 11 23 -8.5 -10.5 28.72 16 22 128 326 000 92107 45 -10-11-13 000 36 12 00 -8.5 -10.6 28.71 16 23 130 329 000 90107 41 -10-11-12 000 37 12 01 -8.0 -9.8 28.70 17 23 133 331 000 92111 37 -9-11-12 000 38 12 02 -7.9 -9.3 28.69 18 24 131 330 000 95110 39 -9-11-12 000 39 12 03 -7.9 -9.3 28.68 18 23 125 323 000 96111 31 -9-11-12 000 40 12 04 -7.9 -8.8 28.67 17 22 128 327 000 101111 28 -9-10-12 000 41 12 05 -8.1 -8.7 28.67 18 23 131 329 000 103111 28 -9-10-12 000 42 12 06 -8.2 -9.5 28.66 17 23 125 323 000 97111 30 -9-11-12 000 43 12 07 -8.5 -9.1 28.66 17 23 128 326 001 104111 31 -9-11-12 000 44 12 08 -9.8 -11.7 28.66 17 26 126 324 000 93105 30 -10-11-12 000 45 12 09 -9.6 -11.5 28.65 17 26 129 328 000 93111 32 -10-11-12 000 46 12 10 -10.2 -10.9 28.65 16 26 131 329 -002 105112 33 -10-12-11 000 47 12 11 -10.6 -11.2 28.64 16 27 132 331 000 107 99 32 -10-11 -9 000 48 12 12 -10.6 -11.3 28.63 18 28 130 328 002 105 79 30 -11-10 -8 000 49 12 13 -10.8 -11.8 28.62 19 30 126 325 000 103 70 32 -11-10 -8 000 50 12 14 -10.5 -11.6 28.62 21 30 125 323 000 101 52 46 -11 -9 -7 000 51 12 15 -10.3 -12.4 28.61 22 30 127 326 -005 91 44 99 -10 -7 -7 000 52 12 16 -10.7 -13.0 28.61 20 29 128 326 000 90 79 86 -9 -7 -8 000 53 12 17 -10.3 -13.0 28.61 19 28 123 321 -001 86103 86 -9 -7 -8 000 54 12 18 -9.8 -12.6 28.60 17 24 124 323 000 85 95 91 -7 -7 -8 000 55 12 19 -9.0 -11.0 28.60 16 20 123 321 -002 91100 95 -6 -7 -8 000 56 12 20 -8.4 -9.5 28.60 14 19 123 321 -002 99 95 93 -6 -7 -7 000 57 12 21 -7.5 -8.3 28.61 13 19 116 314 -001 102101 89 -7 -7 -8 000 58 12 22 -7.1 -7.9 28.61 13 18 114 312 -001 100100 86 -6 -7 -8 000 59 12 23 -6.8 -7.6 28.61 13 19 112 311 000 100104 86 -7 -7 -8 000 60 13 00 -6.2 -6.8 28.61 14 19 112 311 001 101105 86 -6 -7 -8 000 61 13 01 -5.2 -5.9 28.60 14 19 111 309 002 99101100 -6 -7 -8 000 62 13 02 -4.7 -5.4 28.60 16 20 107 306 006 98107111 -6 -7 -8 000 63 13 03 -4.4 -5.2 28.60 15 18 109 308 006 97107111 -5 -7 -8 003 64 13 04 -4.1 -5.2 28.60 13 17 100 298 -002 94102111 -5 -6 -7 002 65 13 05 -3.9 -4.8 28.60 13 16 96 294 000 96106111 -5 -6 -7 002 66 13 06 -4.6 -4.9 28.60 10 14 91 289 -002 102102104 -5 -6 -7 000 67 13 07 -5.0 -5.0 28.61 8 11 93 291 -003 105 95108 -5 -6 -7 000 68 13 08 -5.0 -5.1 28.61 6 8 115 314 -002 105105110 -5 -6 -7 002 69 13 09 -4.2 -4.4 28.62 11 15 22 220 -004 103106110 -5 -6 -7 078 70 13 10 -4.7 -4.9 28.63 10 13 34 232 -002 103 96103 -5 -6 -7 013 71 13 11 -5.2 -6.0 28.64 12 18 16 214 -007 98 97107 -6 -7 -8 018 72 13 12 -6.6 -6.8 28.64 9 17 1 199 -004 106100 96 -6 -7 -8 003 73 13 13 -6.7 -7.1 28.65 7 17 34 232 -003 103 96109 -6 -7 -8 008 74 13 14 -6.4 -6.7 28.65 8 14 46 244 -004 105100108 -6 -7 -8 007 75 13 15 -5.4 -6.2 28.65 8 11 56 254 000 99105112 -6 -7 -8 050 76 13 16 -5.5 -6.2 28.66 9 14 46 244 -005 100107112 -6 -7 -8 036 77 13 17 -5.9 -6.7 28.67 9 12 38 236 -002 99108111 -7 -8 -9 008 78 13 18 -5.9 -6.8 28.67 9 13 40 239 000 98108112 -7 -8 -9 023 79 13 19 -5.8 -6.8 28.67 9 12 33 231 000 97108113 -7 -8 -9 015 80 13 20 -5.5 -6.8 28.68 7 11 52 251 002 94104113 -7 -8 -9 003 81 13 21 -5.3 -6.5 28.68 7 10 72 270 -001 94104113 -6 -8 -9 004 82 13 22 -5.3 -6.6 28.68 12 13 71 269 -002 93103112 -6 -8 -9 009 83 13 23 -5.2 -6.3 28.69 11 12 73 271 000 95107112 -6 -8 -9 013 84 14 00 -4.9 -6.3 28.69 11 12 71 269 000 93107108 -6 -8 -9 014 85 14 01 -4.9 -6.2 28.68 11 13 73 271 001 94107112 -6 -8 -9 015 86 14 02 -4.7 -6.0 28.68 10 13 72 271 -001 94107111 -6 -7 -8 014 87 14 03 -4.9 -6.3 28.68 10 13 81 279 -001 93 95110 -6 -7 -8 004 88 14 04 -4.8 -5.7 28.68 8 12 76 274 -002 97107112 -6 -7 -8 008 89 14 05 -4.9 -5.7 28.68 10 12 68 267 000 98107111 -6 -7 -8 043 90 14 06 -5.7 -6.3 28.68 8 10 69 267 000 100106 94 -6 -7 -8 011 91 14 07 -5.4 -6.1 28.69 10 11 57 256 000 100108106 -6 -8 -9 033 92 14 08 -6.3 -6.9 28.69 6 9 63 262 -005 102105101 -7 -8 -9 004 93 14 09 -6.2 -6.4 28.70 7 9 56 254 -016 106101 93 -7 -7 -8 003 94 14 10 -5.9 -6.2 28.70 6 11 50 249 -004 103108 90 -7 -8 -9 001 95 14 11 -6.4 -6.5 28.70 8 10 50 249 004 106 98 90 -7 -8 -8 001 96 14 12 -6.5 -6.6 28.70 6 8 38 236 -001 106105 94 -7 -8 -9 000 97 14 13 -6.8 -6.9 28.69 1 5 17 215 -001 106108100 -8 -8 -9 000 98 14 14 -7.2 -7.3 28.69 2 4 25 223 -005 107107101 -7 -8 -9 000 99 14 15 -7.2 -7.6 28.69 2 4 10 209 000 104 98107 -7 -8 -9 000 100 14 16 -7.0 -7.8 28.69 3 6 10 208 000 100 89108 -7 -8 -9 000 101 14 17 -6.2 -8.0 28.69 4 8 12 210 000 91 92112 -7 -8 -9 000 102 14 18 -6.0 -8.1 28.69 4 9 21 219 000 89 86113 -7 -8-10 000 103 14 19 -5.9 -8.4 28.69 7 9 28 226 000 85 97112 -7 -8 -9 000 104 14 20 -5.8 -8.5 28.69 5 8 25 223 -004 83 81111 -7 -8 -9 000 105 14 21 -5.8 -7.8 28.69 5 7 47 245 000 89 85113 -7 -8 -9 000 106 14 22 -5.7 -7.9 28.69 4 8 43 242 -001 88 91113 -7 -8 -9 001 107 14 23 -5.5 -7.9 28.69 5 7 50 248 000 86 99113 -7 -8-10 000 108 15 00 -5.5 -7.8 28.69 4 6 61 260 -001 86100113 -7 -8 -9 000 109 15 01 -5.4 -7.0 28.68 6 9 73 272 000 91107113 -7 -8 -9 014 110 15 02 -5.3 -6.7 28.68 8 10 80 278 000 93108113 -6 -8 -9 002 111 15 03 -5.4 -6.8 28.67 8 10 88 287 000 93105113 -7 -8 -8 000 112 15 04 -5.3 -6.7 28.66 8 11 96 294 002 94 98112 -6 -8 -9 005 113 15 05 -5.3 -6.2 28.66 7 9 63 262 003 97108112 -6 -8 -9 049 114 15 06 -5.8 -7.5 28.67 3 6 44 242 001 92106112 -7 -8 -9 038 115 15 07 -5.6 -6.2 28.67 5 7 74 272 000 100 98111 -7 -8 -8 020 116 15 08 -8.2 -8.5 28.67 3 5 95 293 000 107 85101 -6 -7 -8 000 117 15 09 -7.4 -8.7 28.67 3 5 107 305 000 95 87 96 -6 -7 -8 000 118 15 10 -6.5 -6.9 28.66 2 2 116 314 002 103 78 96 -6 -7 -8 000 119 15 11 -7.0 -7.5 28.67 2 4 151 350 000 102 80 93 -5 -7 -8 000 120 15 12 -9.6 -9.9 28.67 3 5 144 343 000 109 95 91 -6 -7 -8 000 * 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.