USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2025-12-23/00 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 23 00 -7.6 -9.4 29.10 8 9 215 53 000 98 94 78 -11-11-12 000 1 23 01 -9.3 -10.2 29.10 10 11 212 51 000 101112 67 -11-12-13 000 2 23 02 -9.4 -10.6 29.09 10 11 208 46 -003 99113 67 -11-12-13 000 3 23 03 -9.6 -10.7 29.10 10 11 210 49 -004 100113 64 -11-12-13 000 4 23 04 -10.4 -10.6 29.10 10 12 214 52 -004 109 99 73 -12-12-12 000 5 23 05 -11.0 -11.4 29.09 10 12 212 50 -005 108 84 83 -12-12-12 000 6 23 06 -11.7 -12.3 29.10 9 12 211 49 -005 108 84 85 -12-12-13 000 7 23 07 -12.4 -12.7 29.09 9 11 210 48 -005 112 82 87 -12-12-13 000 8 23 08 -13.0 -13.2 29.08 8 10 202 40 -003 113 90 88 -12-13-13 000 9 23 09 -13.1 -13.3 29.08 5 8 203 41 -003 113114 86 -12-13-15 000 10 23 10 -12.1 -13.4 29.08 7 9 199 38 -002 102108 77 -12-13-15 000 11 23 11 -12.0 -12.5 29.07 7 9 194 32 000 109109 52 -13-13-15 000 12 23 12 -12.0 -12.4 29.08 5 9 202 41 001 109108 52 -12-14-15 000 13 23 13 -13.4 -13.6 29.08 7 10 202 41 000 114110 38 -12-14-15 000 14 23 14 -14.2 -14.5 29.09 7 10 208 47 001 114 45 44 -13-13-14 000 15 23 15 -15.3 -15.7 29.09 6 10 194 32 002 115 44 41 -13-13-14 000 16 23 16 -15.2 -17.3 29.09 6 12 176 15 -001 97 40 44 -14-13-13 000 17 23 17 -15.0 -15.2 29.09 9 13 144 343 000 115 43 44 -14-13-13 000 18 23 18 -13.8 -14.7 29.09 10 14 158 356 -001 107 52 42 -14-13-14 000 19 23 19 -13.5 -14.2 29.09 11 15 171 10 000 108 42 42 -14-14-14 000 20 23 20 -13.2 -14.8 29.10 11 16 180 18 000 99 54 44 -14-14-14 000 21 23 21 -13.5 -16.5 29.10 10 15 179 17 000 87 53 44 -14-14-14 000 22 23 22 -13.8 -17.3 29.10 11 16 184 23 -001 82 53 43 -14-14-14 000 23 23 23 -14.3 -17.2 29.09 12 16 193 32 -005 87 53 41 -15-14-14 000 24 24 00 -14.7 -16.8 29.08 12 17 200 38 -011 97 56 36 -15-15-14 000 25 24 01 -14.7 -16.5 29.09 13 18 207 45 -009 98 64 38 -16-15-14 000 26 24 02 -14.7 -16.5 29.09 14 19 208 47 -010 99 68 47 -16-15-15 000 27 24 03 -14.8 -16.2 29.08 14 19 209 48 -011 103 68 43 -16-15-15 000 28 24 04 -14.9 -16.3 29.07 14 19 209 48 -011 103 68 47 -16-15-15 000 29 24 05 -15.1 -16.4 29.06 13 17 210 49 -013 104 71 39 -16-15-15 000 30 24 06 -15.4 -16.3 29.05 12 16 215 54 -017 110 72 43 -16-15-15 000 31 24 07 -15.6 -16.0 29.04 11 15 218 56 -017 116 72 44 -16-15-15 000 32 24 08 -15.8 -16.1 29.03 11 13 217 55 -006 116 70 49 -15-15-15 000 33 24 09 -16.0 -16.3 29.02 10 12 209 48 005 116 74 52 -15-15-15 000 34 24 10 -16.4 -16.7 29.01 8 11 197 36 008 117 77 62 -15-15-15 000 35 24 11 -16.5 -16.8 29.01 8 11 187 26 -001 117 75 74 -15-15-15 000 36 24 12 -16.8 -17.2 29.01 8 11 182 20 000 117 74 65 -15-15-16 000 37 24 13 -17.2 -17.5 29.01 8 11 178 17 001 118 61 51 -15-15-16 000 38 24 14 -17.5 -17.8 29.02 8 13 178 16 000 118 65 66 -15-15-16 000 39 24 15 -17.4 -17.7 29.01 8 14 176 14 000 118 59 60 -14-15-15 000 40 24 16 -17.2 -17.8 29.02 8 13 179 17 001 115 50 67 -14-14-15 000 41 24 17 -16.7 -17.9 29.02 8 14 178 16 001 107 40 66 -14-14-15 000 42 24 18 -15.8 -18.2 29.02 8 14 179 17 001 94 57 43 -14-14-15 000 43 24 19 -15.1 -18.0 29.02 9 15 174 13 001 90 67 40 -14-14-15 000 44 24 20 -14.5 -17.9 29.02 9 14 168 6 000 84 78 34 -14-14-15 000 45 24 21 -14.0 -17.7 29.02 9 13 157 355 000 81 54 33 -14-14-14 000 46 24 22 -13.6 -17.0 29.03 9 12 145 343 000 83 44 32 -14-14-14 000 47 24 23 -13.1 -16.6 29.03 9 12 133 331 001 82 36 29 -13-13-13 000 48 25 00 -13.0 -17.6 29.04 9 13 129 327 001 72 34 36 -13-13-13 000 49 25 01 -13.1 -17.9 29.05 10 15 127 326 000 71 37 30 -13-13-13 000 50 25 02 -13.0 -17.2 29.06 11 16 121 319 000 76 56 45 -12-12-12 000 51 25 03 -12.8 -15.9 29.06 11 18 119 318 000 84 46 47 -12-12-12 000 52 25 04 -12.8 -15.6 29.07 12 19 124 323 001 87 35 54 -12-11-11 000 53 25 05 -13.2 -15.8 29.08 11 19 137 336 000 90 35 55 -12-11-11 000 54 25 06 -13.8 -16.3 29.08 11 20 140 339 000 92 31 52 -12-11-11 000 55 25 07 -14.3 -16.9 29.08 11 21 145 343 002 91 30 53 -11-10-10 000 56 25 08 -14.6 -17.8 29.09 11 20 147 345 002 85 28 54 -11-10-10 000 57 25 09 -14.8 -17.9 29.09 11 20 145 344 002 85 30 63 -10 -9-10 000 58 25 10 -14.6 -17.4 29.10 11 20 143 341 001 88 33 58 -9 -9-10 000 59 25 11 -14.7 -17.8 29.11 11 19 144 342 002 85 37 59 -9 -9-10 000 60 25 12 -14.9 -18.7 29.11 11 19 151 349 001 79 37 54 -9 -9-10 000 61 25 13 -15.0 -19.3 29.11 10 17 156 354 000 74 36 56 -8 -9-10 000 62 25 14 -14.6 -19.4 29.12 10 17 159 357 001 70 38 55 -8 -9-10 000 63 25 15 -14.1 -19.3 29.12 9 16 159 358 001 66 38 51 -8 -8 -9 000 64 25 16 -13.6 -18.8 29.13 8 14 160 358 000 66 39 52 -7 -8 -9 000 65 25 17 -12.8 -17.7 29.13 8 14 162 0 000 68 40 53 -7 -8 -9 000 66 25 18 -11.6 -16.4 29.13 8 13 160 359 000 68 39 50 -7 -8 -9 000 67 25 19 -10.4 -15.3 29.13 7 12 158 357 001 67 37 48 -7 -8 -9 000 68 25 20 -9.5 -14.4 29.14 6 11 158 357 001 67 36 45 -7 -8 -8 000 69 25 21 -8.8 -14.4 29.14 6 9 159 357 001 62 35 43 -6 -7 -8 000 70 25 22 -8.3 -13.8 29.14 5 8 163 1 001 63 36 39 -6 -7 -8 000 71 25 23 -7.9 -13.7 29.15 5 7 168 6 000 61 35 38 -6 -7 -8 000 72 26 00 -8.1 -13.2 29.15 6 8 175 14 000 66 35 36 -6 -7 -8 000 73 26 01 -8.2 -12.8 29.16 6 8 181 19 000 69 35 36 -6 -7 -8 000 74 26 02 -8.2 -12.5 29.16 5 6 185 23 000 72 34 34 -6 -7 -7 000 75 26 03 -8.4 -11.9 29.16 5 7 192 31 000 78 32 34 -6 -6 -8 000 76 26 04 -9.0 -11.7 29.15 5 7 197 35 001 84 29 35 -6 -6 -7 000 77 26 05 -9.7 -12.1 29.15 6 8 197 35 001 87 32 38 -6 -6 -7 000 78 26 06 -10.5 -12.5 29.15 6 9 197 35 001 91 32 38 -7 -6 -7 000 79 26 07 -11.5 -13.3 29.15 6 9 196 34 002 93 31 35 -7 -7 -7 000 80 26 08 -12.0 -13.6 29.16 6 10 192 30 003 97 33 37 -7 -7 -8 000 81 26 09 -12.4 -13.8 29.15 6 10 190 29 001 99 34 39 -7 -7 -8 000 82 26 10 -12.6 -13.8 29.15 6 10 188 27 000 101 34 40 -7 -7 -8 000 83 26 11 -12.6 -14.0 29.15 6 10 186 24 000 98 34 38 -7 -7 -8 000 84 26 12 -12.4 -14.5 29.15 6 9 187 26 -001 90 33 35 -7 -7 -8 000 85 26 13 -12.2 -15.0 29.15 6 9 191 29 -001 84 33 36 -7 -7 -8 000 86 26 14 -11.9 -15.6 29.15 6 9 190 28 -001 76 33 37 -7 -7 -8 000 87 26 15 -11.7 -15.8 29.14 6 9 193 32 -002 72 33 37 -7 -7 -8 000 88 26 16 -11.3 -15.7 29.14 6 9 196 35 -002 67 33 37 -7 -7 -8 000 89 26 17 -10.8 -15.0 29.13 6 9 196 34 -001 68 32 37 -7 -7 -8 000 90 26 18 -10.2 -14.0 29.13 6 9 200 39 000 72 33 37 -7 -7 -8 000 91 26 19 -9.6 -13.3 29.13 5 8 205 43 000 75 33 37 -7 -7 -8 000 92 26 20 -9.0 -12.7 29.13 5 8 208 46 000 77 33 36 -7 -7 -8 000 93 26 21 -8.7 -12.4 29.12 5 8 205 43 000 77 32 36 -7 -7 -8 000 94 26 22 -8.6 -11.9 29.12 6 8 206 44 000 80 33 35 -7 -7 -8 000 95 26 23 -8.8 -11.3 29.12 6 7 206 44 000 87 33 34 -7 -7 -8 000 96 27 00 -8.9 -11.3 29.12 6 8 203 42 000 88 35 34 -7 -8 -8 000 97 27 01 -9.3 -11.1 29.11 6 8 199 37 000 93 36 35 -7 -8 -8 000 98 27 02 -9.9 -10.6 29.11 7 8 199 37 000 105 31 34 -7 -8 -8 000 99 27 03 -10.1 -10.3 29.10 7 8 203 41 000 109 30 35 -7 -7 -9 000 100 27 04 -10.5 -10.7 29.10 7 8 203 42 000 110 29 33 -7 -8 -8 000 101 27 05 -10.8 -10.9 29.09 7 10 201 40 000 111 47 36 -7 -8 -9 000 102 27 06 -11.5 -11.8 29.09 7 8 202 40 000 111 47 40 -7 -8 -9 000 103 27 07 -12.3 -12.5 29.08 7 10 198 36 000 112 45 44 -7 -8 -8 000 104 27 08 -12.6 -12.9 29.08 7 8 194 32 000 113 43 48 -7 -7 -8 000 105 27 09 -13.0 -13.3 29.08 6 8 188 27 001 113 42 50 -7 -7 -8 000 106 27 10 -13.6 -13.9 29.08 6 9 183 21 001 114 45 49 -7 -8 -8 000 107 27 11 -14.1 -14.5 29.08 6 9 178 16 000 114 47 47 -7 -8 -9 000 108 27 12 -14.2 -14.6 29.08 7 10 173 11 000 114 48 45 -7 -8 -9 000 109 27 13 -14.3 -14.7 29.08 6 10 170 8 000 114 48 42 -7 -8 -9 000 110 27 14 -14.1 -14.5 29.08 6 10 166 5 000 114 47 38 -7 -8 -9 000 111 27 15 -13.7 -14.0 29.08 7 9 165 4 001 114 45 31 -7 -8 -8 000 112 27 16 -13.0 -13.2 29.08 7 8 165 3 001 113 43 28 -7 -8 -8 000 113 27 17 -12.2 -12.4 29.08 7 8 160 358 000 112 44 28 -7 -8 -8 000 114 27 18 -11.8 -12.0 29.09 7 8 162 0 000 112 42 27 -7 -7 -8 000 115 27 19 -11.2 -11.4 29.10 7 9 164 2 001 111 40 26 -7 -7 -8 000 116 27 20 -10.6 -10.8 29.10 7 9 166 4 000 111 37 25 -7 -7 -8 000 117 27 21 -10.1 -10.2 29.11 7 9 167 5 000 110 38 24 -6 -7 -8 000 118 27 22 -9.4 -10.3 29.12 6 9 164 3 000 102 35 23 -6 -7 -7 000 119 27 23 -9.0 -10.5 29.13 6 9 162 0 000 96 34 22 -6 -7 -7 000 120 28 00 -9.1 -10.2 29.13 7 9 164 2 000 99 33 22 -6 -7 -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.