USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2026-01-30/00 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 30 00 -9.7 -11.0 28.58 13 19 113 311 000 96 94 94 -8 -8 -8 000 1 30 01 -8.9 -9.7 28.57 16 20 88 286 -004 102102 95 -9 -8 -8 020 2 30 02 -9.0 -9.7 28.59 15 20 88 287 -009 104104 93 -9 -8 -7 005 3 30 03 -8.8 -9.3 28.57 15 19 88 287 -009 106104 92 -8 -8 -7 006 4 30 04 -8.6 -9.2 28.58 14 18 88 287 -007 104103 94 -8 -7 -7 015 5 30 05 -8.4 -9.0 28.59 13 18 88 286 -006 103103 95 -7 -7 -7 017 6 30 06 -8.4 -9.0 28.57 13 16 88 286 -006 104103 94 -7 -7 -7 014 7 30 07 -8.3 -8.8 28.56 11 15 84 282 -006 105104 94 -7 -7 -7 010 8 30 08 -7.8 -8.3 28.58 10 14 81 280 -008 105102 92 -7 -7 -7 009 9 30 09 -7.5 -7.7 28.57 9 12 75 274 -007 106 98 95 -7 -6 -7 008 10 30 10 -7.3 -7.4 28.58 7 10 83 281 -006 107 98 95 -7 -7 -7 007 11 30 11 -7.0 -7.1 28.58 8 10 86 284 -005 107 99 97 -6 -7 -7 007 12 30 12 -6.9 -7.0 28.59 9 11 83 281 -004 106 98 95 -6 -6 -7 011 13 30 13 -6.9 -7.1 28.58 9 13 77 275 -001 107 97 95 -6 -6 -7 009 14 30 14 -6.7 -6.9 28.59 10 14 73 272 000 106 96 91 -6 -6 -7 008 15 30 15 -6.6 -6.7 28.60 10 14 74 272 -001 106 95 94 -6 -6 -7 007 16 30 16 -6.3 -6.4 28.61 10 13 69 268 -002 106 91 97 -6 -5 -7 010 17 30 17 -6.0 -6.2 28.62 9 11 66 264 -005 105 93 95 -6 -6 -7 013 18 30 18 -5.7 -5.9 28.62 9 11 62 260 -008 104 95 94 -6 -6 -7 014 19 30 19 -5.2 -5.5 28.63 9 13 53 252 -008 103 95 91 -6 -6 -7 014 20 30 20 -4.8 -5.2 28.64 9 13 50 248 -009 102 97 94 -6 -6 -7 013 21 30 21 -4.7 -5.1 28.64 9 14 51 250 -007 101101 93 -6 -6 -7 012 22 30 22 -4.4 -5.0 28.65 10 13 46 244 -009 99104 94 -6 -7 -7 016 23 30 23 -4.4 -4.9 28.66 13 19 43 241 -006 100106 94 -6 -7 -7 012 24 31 00 -4.3 -4.7 28.66 15 20 41 239 -007 101107 96 -5 -6 -6 012 25 31 01 -4.5 -5.0 28.67 15 18 49 247 -003 100107104 -6 -7 -7 014 26 31 02 -4.3 -4.8 28.68 16 21 54 253 -003 100107108 -5 -7 -7 014 27 31 03 -4.5 -4.8 28.69 18 23 58 257 005 102106110 -5 -6 -7 025 28 31 04 -4.2 -4.3 28.68 20 25 47 245 009 104106105 -5 -6 -7 024 29 31 05 -4.4 -4.5 28.69 22 27 38 237 013 104105 97 -5 -6 -7 023 30 31 06 -4.5 -4.8 28.71 23 30 39 237 023 103106 97 -5 -6 -7 029 31 31 07 -4.6 -4.9 28.72 22 29 39 237 027 103106 99 -5 -6 -7 040 32 31 08 -4.9 -5.1 28.73 22 28 39 237 025 104107100 -6 -6 -7 043 33 31 09 -5.0 -5.4 28.75 21 31 34 233 024 102107101 -6 -7 -8 043 34 31 10 -5.2 -5.5 28.76 21 29 35 233 020 102107100 -6 -7 -8 044 35 31 11 -5.4 -5.7 28.77 21 30 34 232 020 103107100 -6 -7 -8 045 36 31 12 -5.6 -5.9 28.79 22 31 32 231 021 104107 98 -6 -7 -8 042 37 31 13 -5.7 -6.1 28.80 23 32 30 229 022 103107 97 -6 -7 -8 039 38 31 14 -5.8 -6.1 28.81 23 32 32 231 016 104107102 -6 -7 -8 042 39 31 15 -5.9 -6.0 28.82 23 32 32 230 021 105108100 -7 -8 -8 031 40 31 16 -6.2 -6.3 28.83 23 32 29 227 007 106108 99 -7 -8 -8 013 41 31 17 -6.2 -6.4 28.84 21 30 31 229 004 106108100 -7 -8 -9 012 42 31 18 -6.2 -6.3 28.86 20 28 32 230 002 106108105 -7 -8 -9 011 43 31 19 -6.1 -6.3 28.87 20 27 31 229 -001 105108103 -7 -8 -9 011 44 31 20 -5.9 -6.3 28.88 20 27 33 232 004 103108102 -7 -8 -9 010 45 31 21 -5.9 -6.4 28.89 20 27 35 234 000 102108101 -7 -8 -9 012 46 31 22 -5.8 -6.1 28.90 19 25 46 244 000 104108104 -7 -8 -9 016 47 31 23 -5.6 -6.0 28.90 18 22 54 252 000 102108110 -7 -8 -9 017 48 01 00 -5.3 -5.8 28.90 17 23 55 253 006 101108110 -6 -7 -9 026 49 01 01 -5.3 -5.8 28.91 17 23 45 243 000 101108108 -6 -7 -9 020 50 01 02 -5.0 -5.5 28.90 19 26 44 242 007 100107101 -6 -7 -8 029 51 01 03 -5.2 -5.7 28.89 22 28 52 250 008 101107 95 -6 -7 -8 037 52 01 04 -5.1 -5.6 28.89 21 27 54 253 014 101107 92 -6 -7 -8 034 53 01 05 -5.0 -5.4 28.89 20 25 50 248 009 102107 98 -6 -7 -8 037 54 01 06 -4.9 -5.2 28.88 18 24 48 246 002 103107103 -6 -7 -8 031 55 01 07 -5.1 -5.2 28.88 18 23 47 245 001 105107108 -6 -7 -8 027 56 01 08 -5.1 -5.2 28.88 17 22 45 244 001 104107111 -6 -7 -8 027 57 01 09 -5.1 -5.2 28.87 16 22 39 237 001 105107110 -6 -7 -8 028 58 01 10 -5.1 -5.2 28.87 15 21 37 235 -002 105107110 -6 -7 -7 024 59 01 11 -5.0 -5.1 28.87 15 20 27 225 000 105106105 -6 -6 -7 018 60 01 12 -4.9 -5.2 28.88 15 25 2 200 -007 103107110 -6 -7 -8 007 61 01 13 -5.2 -5.7 28.88 14 24 2 200 000 101107112 -6 -7 -8 007 62 01 14 -5.8 -6.6 28.88 17 26 23 221 -003 99108112 -7 -8 -9 002 63 01 15 -6.0 -6.4 28.89 16 21 8 206 000 103108113 -7 -8 -9 005 64 01 16 -6.0 -6.8 28.90 15 20 359 197 -001 99108113 -7 -8 -9 009 65 01 17 -5.9 -6.3 28.89 13 18 12 210 001 103108113 -7 -8 -9 002 66 01 18 -5.6 -6.2 28.89 14 18 7 206 000 101108112 -7 -8 -9 003 67 01 19 -5.5 -6.0 28.88 14 19 6 204 000 101108112 -6 -8 -8 005 68 01 20 -5.2 -5.8 28.88 13 17 4 203 000 100108112 -6 -7 -8 003 69 01 21 -4.9 -6.2 28.89 12 15 341 179 002 93107112 -6 -7 -8 008 70 01 22 -5.0 -6.0 28.89 11 13 355 193 001 96107112 -6 -7 -8 005 71 01 23 -4.9 -6.0 28.89 9 13 353 192 000 95 98112 -6 -7 -8 005 72 02 00 -4.8 -5.8 28.89 9 11 353 192 000 96104112 -6 -7 -8 005 73 02 01 -4.8 -6.0 28.89 8 11 356 194 001 94 93112 -6 -7 -8 008 74 02 02 -4.6 -6.5 28.88 7 13 347 185 002 88 92112 -5 -6 -8 000 75 02 03 -4.6 -6.4 28.87 7 11 5 204 001 89100112 -6 -7 -8 000 76 02 04 -4.9 -6.0 28.86 7 10 13 211 001 95 98112 -6 -7 -8 001 77 02 05 -4.9 -5.7 28.85 6 9 27 225 001 98105112 -6 -7 -8 000 78 02 06 -5.1 -6.0 28.85 6 7 39 237 -001 98 99111 -6 -7 -8 001 79 02 07 -5.1 -5.9 28.84 3 7 53 252 002 99107109 -6 -7 -8 001 80 02 08 -5.6 -6.2 28.84 5 8 50 248 000 101101108 -6 -7 -8 000 81 02 09 -5.5 -5.6 28.83 6 8 69 267 000 105 98106 -6 -7 -7 000 82 02 10 -5.7 -5.8 28.83 6 9 78 276 000 105 99108 -6 -6 -7 000 83 02 11 -5.8 -6.5 28.82 8 14 91 289 -003 100 98107 -6 -6 -6 001 84 02 12 -5.5 -6.0 28.81 12 18 88 286 -003 102101104 -6 -6 -6 001 85 02 13 -5.3 -5.4 28.80 15 20 89 288 -002 105 99105 -6 -5 -5 002 86 02 14 -5.1 -5.4 28.79 16 20 91 290 -002 103102101 -6 -5 -5 005 87 02 15 -5.0 -5.1 28.79 16 20 94 292 -004 105105106 -5 -5 -5 005 88 02 16 -4.7 -4.9 28.78 15 19 97 295 -003 104105100 -5 -5 -5 005 89 02 17 -4.4 -4.5 28.77 14 20 99 298 -001 104105 94 -5 -5 -5 005 90 02 18 -4.1 -4.2 28.77 15 18 94 292 -002 104104 94 -4 -4 -4 009 91 02 19 -3.8 -3.8 28.77 13 15 85 283 -012 104104 97 -4 -4 -5 014 92 02 20 -3.0 -3.3 28.77 10 12 74 272 -011 100104 98 -4 -5 -5 035 93 02 21 -2.2 -2.9 28.78 9 12 43 241 -008 96104 99 -3 -4 -5 033 94 02 22 -2.0 -2.8 28.78 10 13 31 229 -008 96 99100 -3 -4 -5 035 95 02 23 -2.2 -2.8 28.79 11 13 18 216 -006 97100108 -3 -4 -5 029 96 03 00 -2.7 -3.0 28.79 12 16 0 199 -005 100105108 -4 -5 -6 039 97 03 01 -3.3 -3.8 28.80 16 21 10 208 -005 99105109 -4 -5 -6 020 98 03 02 -3.6 -4.3 28.80 16 22 12 211 -009 98106107 -5 -6 -7 008 99 03 03 -3.8 -4.6 28.79 15 21 12 211 -010 97 97 92 -5 -6 -7 003 100 03 04 -4.2 -5.2 28.78 11 18 12 210 -010 95 96 90 -5 -6 -6 002 101 03 05 -4.4 -5.2 28.77 7 13 23 222 000 97 90 89 -5 -5 -6 000 102 03 06 -6.4 -6.7 28.76 5 12 56 255 -003 105102 92 -4 -6 -6 000 103 03 07 -6.8 -7.0 28.76 8 16 94 292 -002 105104 81 -5 -6 -7 000 104 03 08 -6.2 -6.4 28.75 9 19 108 306 -002 106106 84 -5 -6 -7 000 105 03 09 -5.3 -5.4 28.73 14 19 99 298 -001 105 99 92 -5 -6 -7 000 106 03 10 -5.4 -5.6 28.72 12 18 100 299 000 105100 89 -5 -6 -7 000 107 03 11 -7.3 -7.5 28.70 9 18 113 311 -003 107 85 88 -4 -5 -6 000 108 03 12 -8.0 -8.2 28.68 9 19 121 319 -004 107 72 86 -4 -5 -6 000 109 03 13 -7.3 -8.2 28.67 11 19 126 324 -002 99 70 86 -4 -5 -5 000 110 03 14 -6.7 -7.7 28.65 12 21 128 326 -002 97 73 82 -4 -4 -5 000 111 03 15 -6.2 -7.4 28.62 12 23 128 327 -004 96 76 84 -4 -4 -5 000 112 03 16 -5.8 -7.8 28.60 12 23 127 326 000 88 76 84 -4 -4 -4 000 113 03 17 -5.4 -7.4 28.59 12 21 136 334 000 87 79 85 -4 -4 -4 000 114 03 18 -5.2 -7.4 28.57 13 23 144 343 002 86 80 83 -4 -4 -4 000 115 03 19 -4.3 -7.1 28.56 14 24 143 342 001 80 75 88 -4 -5 -5 000 116 03 20 -4.1 -6.8 28.55 14 21 152 351 003 81 76 88 -3 -4 -6 000 117 03 21 -4.1 -6.1 28.55 13 20 156 355 003 86 84 92 -4 -5 -6 003 118 03 22 -3.5 -5.9 28.55 11 19 150 348 -003 82 80 93 -4 -5 -6 003 119 03 23 -3.5 -6.4 28.55 9 15 142 340 -003 79 83 97 -4 -5 -6 004 120 04 00 -3.7 -6.1 28.55 8 11 153 352 -002 83 89 97 -5 -6 -7 007 * 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.