USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2026-02-01/12 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 -6.4 -7.2 28.89 7 17 53 251 000 97 95 91 -6 -6 -7 000 1 01 13 -6.3 -6.4 28.88 14 20 30 228 -006 106107 97 -6 -7 -8 011 2 01 14 -6.3 -6.4 28.89 15 21 30 229 -005 106107 91 -6 -7 -7 004 3 01 15 -6.3 -6.4 28.89 16 22 29 227 -003 106107 89 -6 -7 -7 004 4 01 16 -6.1 -6.2 28.88 17 23 25 223 000 106103 92 -6 -7 -7 007 5 01 17 -5.8 -5.9 28.88 16 22 23 222 -003 105104 94 -6 -7 -7 005 6 01 18 -5.3 -5.4 28.87 16 21 20 218 -008 105105 99 -6 -7 -7 005 7 01 19 -4.9 -5.0 28.89 15 19 17 215 -007 105107108 -6 -7 -8 006 8 01 20 -4.7 -4.8 28.90 13 18 13 211 -004 105107110 -6 -7 -8 005 9 01 21 -4.7 -4.7 28.88 12 17 8 207 -005 104107110 -5 -7 -8 005 10 01 22 -4.4 -4.7 28.90 11 17 11 209 000 102107110 -5 -6 -7 004 11 01 23 -4.3 -4.5 28.90 11 16 13 211 -002 103106110 -5 -6 -7 003 12 02 00 -4.1 -4.5 28.87 10 15 17 215 -002 100103110 -5 -6 -7 004 13 02 01 -3.8 -4.4 28.87 9 13 13 211 -010 99106110 -5 -6 -7 005 14 02 02 -3.9 -4.3 28.87 8 12 17 216 -007 101106108 -5 -6 -7 003 15 02 03 -3.9 -4.3 28.87 7 11 28 227 -004 101106103 -5 -6 -7 003 16 02 04 -3.9 -4.3 28.87 8 11 46 244 -003 101106106 -5 -6 -7 004 17 02 05 -3.8 -3.9 28.86 9 11 43 241 -002 103106106 -4 -6 -7 008 18 02 06 -3.9 -4.0 28.85 11 13 30 229 -002 104106103 -5 -5 -7 012 19 02 07 -4.2 -4.3 28.84 10 13 25 224 -002 104106107 -5 -6 -7 010 20 02 08 -4.4 -4.5 28.83 10 13 26 225 -005 104106106 -5 -6 -7 008 21 02 09 -4.5 -4.6 28.83 10 14 29 227 -005 104103109 -5 -6 -7 009 22 02 10 -4.6 -4.6 28.82 10 15 21 219 -009 104106109 -5 -6 -6 010 23 02 11 -4.5 -4.6 28.81 9 15 35 234 -007 104106107 -5 -6 -6 004 24 02 12 -4.4 -4.5 28.80 12 19 11 210 -010 104105103 -5 -6 -6 000 25 02 13 -4.3 -4.8 28.79 9 15 8 206 -007 100106101 -5 -6 -6 006 26 02 14 -4.4 -4.6 28.79 7 10 35 234 -006 103103101 -5 -6 -6 021 27 02 15 -4.3 -4.6 28.79 8 10 58 256 -005 102102100 -5 -6 -6 038 28 02 16 -4.1 -4.3 28.79 10 13 62 260 -005 103104 98 -5 -6 -6 039 29 02 17 -3.8 -4.1 28.77 11 17 63 261 -007 102106103 -5 -6 -6 035 30 02 18 -3.7 -4.1 28.77 15 19 28 226 -008 101106101 -5 -6 -7 045 31 02 19 -4.0 -4.3 28.77 16 22 25 223 -006 101104100 -5 -6 -7 025 32 02 20 -4.1 -4.2 28.77 18 23 23 221 -007 104106100 -5 -6 -7 021 33 02 21 -3.9 -4.2 28.77 18 23 23 222 -005 102106 99 -5 -6 -7 018 34 02 22 -3.7 -3.8 28.77 17 23 19 218 -006 103106 98 -5 -6 -7 013 35 02 23 -3.4 -3.5 28.76 17 24 20 219 -003 102105100 -4 -5 -6 012 36 03 00 -3.2 -3.3 28.76 16 23 23 221 -006 103105106 -4 -5 -6 014 37 03 01 -3.3 -3.3 28.76 16 21 24 222 000 103105103 -4 -5 -6 010 38 03 02 -3.3 -3.4 28.76 13 19 19 217 -002 103105103 -4 -5 -6 006 39 03 03 -3.2 -3.3 28.75 11 17 21 220 -001 103105106 -4 -5 -6 007 40 03 04 -3.1 -3.1 28.74 8 11 17 216 -014 103105104 -4 -5 -5 003 41 03 05 -3.0 -3.1 28.73 7 11 44 242 006 103105 94 -4 -4 -6 001 42 03 06 -2.9 -3.0 28.73 9 12 63 262 -003 102104106 -3 -4 -5 005 43 03 07 -3.0 -3.4 28.72 10 12 78 277 -002 100105108 -4 -5 -6 002 44 03 08 -3.3 -3.4 28.71 12 16 87 285 -003 103105102 -4 -5 -6 000 45 03 09 -3.6 -4.0 28.69 10 16 70 268 -005 100101103 -4 -5 -6 000 46 03 10 -3.4 -3.5 28.67 8 14 79 277 -003 103105101 -4 -5 -5 000 47 03 11 -3.3 -3.4 28.66 12 16 91 289 -007 103101 87 -3 -4 -6 000 48 03 12 -3.1 -3.1 28.65 10 16 84 283 -003 103100 96 -3 -4 -5 000 49 03 13 -3.3 -3.8 28.64 11 17 98 297 -010 99104108 -4 -4 -5 000 50 03 14 -4.3 -4.7 28.63 11 19 128 326 000 101104 95 -3 -4 -4 000 51 03 15 -3.0 -4.3 28.63 11 18 141 339 000 92103 98 -3 -4 -4 000 52 03 16 -3.9 -4.1 28.62 10 21 140 339 -002 102 89 88 -2 -3 -4 000 53 03 17 -3.9 -4.0 28.61 11 20 129 327 000 103 84104 -2 -2 -3 000 54 03 18 -3.7 -4.2 28.60 10 19 120 318 000 100 84 98 -2 -2 -3 000 55 03 19 -3.5 -4.0 28.59 10 17 120 318 001 99 89 95 -2 -3 -3 000 56 03 20 -3.3 -3.7 28.58 9 16 122 320 001 100 89 89 -3 -3 -3 000 57 03 21 -3.1 -3.6 28.58 8 14 133 331 000 98 89 78 -3 -3 -3 000 58 03 22 -2.9 -3.5 28.58 8 14 142 341 001 97 88 76 -3 -3 -4 000 59 03 23 -3.4 -3.4 28.59 8 13 149 348 000 103 84 78 -3 -3 -3 000 60 04 00 -3.4 -3.4 28.59 9 14 168 6 002 103 82 81 -3 -3 -3 000 61 04 01 -3.8 -3.8 28.59 10 15 169 7 -001 104 85 89 -3 -3 -3 000 62 04 02 -4.1 -4.2 28.59 10 14 182 20 -004 104 82 83 -3 -3 -3 000 63 04 03 -4.4 -4.5 28.59 10 13 182 20 002 104 81 89 -3 -3 -3 000 64 04 04 -4.6 -4.6 28.59 9 12 187 25 003 104 79 97 -3 -3 -4 000 65 04 05 -4.5 -4.6 28.59 8 10 191 30 003 104 81103 -3 -3 -4 005 66 04 06 -4.8 -4.9 28.59 6 8 192 30 002 104 87104 -3 -4 -4 014 67 04 07 -5.0 -5.3 28.60 6 8 192 30 002 103 89104 -3 -4 -5 013 68 04 08 -4.9 -5.2 28.60 6 7 188 26 000 102 92104 -3 -4 -5 014 69 04 09 -4.8 -5.3 28.61 5 8 195 34 000 101 95105 -4 -4 -5 021 70 04 10 -4.8 -5.3 28.61 4 7 206 44 000 101 96104 -4 -4 -5 026 71 04 11 -4.7 -5.2 28.62 3 7 217 55 -001 100 97108 -4 -5 -5 037 72 04 12 -4.7 -5.2 28.63 2 5 257 95 -002 100 99107 -4 -5 -5 049 73 04 13 -4.6 -5.2 28.64 2 2 336 174 -003 100101103 -4 -5 -6 051 74 04 14 -4.7 -5.1 28.64 3 5 9 207 -003 101103 99 -5 -5 -6 037 75 04 15 -4.5 -4.9 28.65 3 4 1 199 -002 100 98100 -5 -5 -6 030 76 04 16 -4.2 -4.7 28.65 3 4 349 188 -003 100 98101 -4 -5 -6 034 77 04 17 -3.9 -4.6 28.66 3 5 339 177 -002 99100101 -4 -5 -6 031 78 04 18 -3.6 -4.3 28.67 5 8 323 161 000 97104101 -5 -5 -6 023 79 04 19 -3.5 -4.4 28.68 8 9 317 156 000 96104104 -5 -6 -6 023 80 04 20 -3.7 -4.6 28.69 11 12 324 162 000 96106105 -5 -6 -6 015 81 04 21 -4.0 -4.8 28.71 12 15 332 170 -001 96107108 -5 -6 -7 023 82 04 22 -4.3 -5.3 28.72 14 17 336 174 -001 96107108 -6 -7 -7 026 83 04 23 -4.7 -5.8 28.73 14 18 337 175 -001 95100108 -6 -7 -7 018 84 05 00 -4.9 -6.1 28.73 14 18 339 177 000 94107103 -6 -7 -8 011 85 05 01 -4.6 -5.7 28.73 12 16 348 187 -001 94107101 -6 -7 -8 006 86 05 02 -4.6 -5.7 28.74 12 15 0 198 000 95103 97 -6 -7 -8 012 87 05 03 -4.9 -5.9 28.74 11 15 5 203 000 96 98 97 -6 -7 -8 013 88 05 04 -4.9 -5.6 28.74 8 13 17 215 001 98106103 -6 -7 -8 007 89 05 05 -4.9 -5.4 28.75 9 13 35 233 001 101106104 -6 -7 -8 012 90 05 06 -4.9 -5.0 28.75 9 12 40 239 000 104107104 -6 -7 -8 008 91 05 07 -5.3 -5.4 28.75 8 12 41 239 000 105107106 -6 -7 -8 005 92 05 08 -5.5 -5.9 28.75 8 11 55 253 002 102106112 -6 -7 -8 003 93 05 09 -5.8 -6.1 28.75 8 12 76 274 001 103 96112 -7 -7 -8 001 94 05 10 -6.2 -6.4 28.75 7 11 88 286 002 106 90 96 -7 -7 -8 000 95 05 11 -6.9 -7.1 28.75 7 10 94 293 001 107 92 98 -6 -7 -7 000 96 05 12 -9.1 -9.3 28.75 6 13 100 298 -001 108102 97 -6 -7 -8 000 97 05 13 -9.2 -9.5 28.75 7 11 101 300 -003 108 95 95 -6 -7 -8 000 98 05 14 -8.3 -8.6 28.74 6 10 104 303 -001 107 92 94 -6 -7 -8 001 99 05 15 -7.6 -7.8 28.74 6 12 102 300 000 107100 96 -6 -7 -8 001 100 05 16 -7.6 -7.8 28.74 6 13 115 313 -001 107107 95 -6 -7 -9 001 101 05 17 -6.0 -6.5 28.73 6 11 115 314 000 102107 90 -6 -7 -9 001 102 05 18 -6.0 -6.4 28.73 5 10 124 322 -001 104103 93 -6 -7 -8 000 103 05 19 -6.9 -7.0 28.73 5 10 115 313 -003 106 98 93 -6 -7 -8 000 104 05 20 -6.7 -6.8 28.73 4 8 94 293 -002 106 99 97 -6 -7 -8 000 105 05 21 -6.4 -6.5 28.73 5 9 87 286 000 106 95100 -6 -7 -8 000 106 05 22 -5.9 -6.2 28.74 6 8 83 282 -002 104 98 93 -6 -7 -8 000 107 05 23 -5.7 -6.1 28.74 6 10 87 285 -003 102101 95 -6 -7 -8 000 108 06 00 -6.0 -6.0 28.73 7 9 91 289 -003 106102 88 -6 -7 -8 000 109 06 01 -5.8 -5.9 28.73 7 10 81 279 001 106101 91 -6 -7 -8 000 110 06 02 -5.9 -5.9 28.73 6 9 83 281 001 106100 99 -6 -7 -8 000 111 06 03 -6.2 -6.6 28.72 5 9 100 299 000 104 97101 -6 -7 -8 000 112 06 04 -7.1 -7.3 28.71 6 9 107 305 001 106 97 95 -6 -7 -8 000 113 06 05 -7.8 -8.0 28.71 7 10 107 305 000 107101 93 -6 -7 -8 000 114 06 06 -8.5 -8.9 28.71 6 9 94 293 001 107101 92 -6 -7 -8 000 115 06 07 -9.6 -10.0 28.71 5 9 95 293 000 108105 87 -6 -7 -8 000 116 06 08 -10.6 -11.0 28.71 5 10 100 298 000 109107 87 -6 -7 -8 000 117 06 09 -9.0 -9.2 28.71 5 9 108 307 000 108104 89 -6 -7 -7 000 118 06 10 -8.6 -8.9 28.71 4 8 105 304 000 108107 84 -6 -7 -8 000 119 06 11 -7.7 -8.0 28.71 5 8 109 308 000 107 91 89 -6 -7 -7 000 120 06 12 -8.1 -8.5 28.70 5 8 97 296 000 107 84 97 -6 -6 -7 000 * 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.