USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2026-01-13/12 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 13 12 -9.5 -10.7 28.72 10 15 172 10 000 95 96 95 -7 -7 -7 000 1 13 13 -9.6 -10.3 28.72 11 16 159 357 000 105103102 -7 -7 -7 009 2 13 14 -10.7 -11.2 28.73 10 15 160 359 000 107103104 -7 -7 -7 005 3 13 15 -10.9 -11.3 28.73 11 15 157 355 000 109106107 -6 -7 -7 002 4 13 16 -9.4 -10.1 28.72 10 12 151 350 000 103107110 -7 -7 -7 002 5 13 17 -8.7 -9.5 28.75 8 9 153 352 000 102107110 -7 -7 -8 002 6 13 18 -8.4 -9.2 28.73 8 8 161 359 000 101106111 -6 -7 -8 003 7 13 19 -8.3 -9.2 28.75 7 7 165 3 000 101107111 -6 -7 -8 005 8 13 20 -8.1 -8.9 28.74 6 6 167 5 001 101108111 -7 -7 -8 003 9 13 21 -7.9 -8.7 28.75 6 6 170 8 000 101107111 -7 -7 -8 003 10 13 22 -7.8 -8.7 28.77 6 6 172 10 000 100104111 -7 -7 -8 008 11 13 23 -7.7 -8.7 28.76 6 6 173 12 000 99106111 -7 -8 -8 014 12 14 00 -7.9 -8.8 28.76 5 6 175 13 000 99105111 -8 -8 -8 008 13 14 01 -8.1 -9.2 28.76 5 5 182 20 000 98104110 -8 -8 -8 005 14 14 02 -8.5 -9.8 28.76 6 6 187 26 000 97104107 -8 -8 -8 005 15 14 03 -9.1 -10.6 28.77 6 7 189 28 000 96104103 -8 -8 -8 003 16 14 04 -9.6 -11.1 28.77 7 7 188 27 000 97103 99 -7 -8 -8 001 17 14 05 -9.9 -11.2 28.77 6 7 190 28 000 99102103 -7 -8 -8 001 18 14 06 -10.5 -11.8 28.77 5 6 184 22 -001 99101101 -8 -8 -8 001 19 14 07 -9.9 -11.8 28.77 5 5 177 15 -002 93102102 -8 -8 -9 000 20 14 08 -9.9 -12.5 28.77 5 5 180 18 -001 88102102 -8 -8 -9 001 21 14 09 -10.2 -13.0 28.78 5 6 189 27 -003 86103104 -8 -8 -9 001 22 14 10 -11.5 -13.6 28.77 5 6 190 29 -001 92102107 -8 -8 -9 002 23 14 11 -11.4 -13.7 28.77 5 7 195 33 001 90103104 -8 -8 -9 003 24 14 12 -11.5 -13.7 28.78 5 7 196 34 001 91103105 -8 -9 -9 003 25 14 13 -12.2 -14.6 28.79 6 8 188 27 000 90100104 -9 -9 -9 002 26 14 14 -12.6 -14.7 28.79 6 8 188 26 000 93 93106 -9 -9 -9 001 27 14 15 -12.7 -14.8 28.79 6 9 192 30 000 93 68108 -9 -9 -9 000 28 14 16 -12.6 -15.1 28.79 6 9 197 36 000 90 43104 -9 -9 -9 000 29 14 17 -12.2 -15.9 28.80 6 9 199 38 000 79 36 88 -9 -9 -9 000 30 14 18 -11.8 -16.3 28.81 8 11 200 39 000 73 39 75 -9 -9 -9 000 31 14 19 -11.8 -15.9 28.81 9 12 204 42 001 76 42 56 -10 -9 -9 000 32 14 20 -11.6 -15.9 28.82 9 13 206 45 000 74 40 40 -10-10-10 000 33 14 21 -11.2 -15.1 28.82 11 17 209 47 000 77 53 32 -10-10-10 000 34 14 22 -10.8 -14.2 28.82 11 18 206 44 000 80 66 35 -10-10-10 000 35 14 23 -11.3 -13.8 28.83 11 17 211 50 001 89 61 45 -10-10-10 000 36 15 00 -11.5 -14.4 28.84 12 21 207 46 001 86 72 46 -10-10-10 000 37 15 01 -11.5 -14.4 28.84 14 25 200 38 000 86 43 46 -10-10-10 000 38 15 02 -11.6 -14.2 28.85 14 25 205 44 -002 88 36 47 -10 -9-10 000 39 15 03 -12.1 -15.3 28.86 13 21 212 50 -006 84 34 48 -10 -9-10 000 40 15 04 -12.6 -15.0 28.86 13 20 218 56 -005 91 37 37 -10 -9-10 000 41 15 05 -13.0 -14.7 28.87 12 19 225 63 -007 98 38 35 -10 -9-10 000 42 15 06 -13.4 -14.6 28.87 12 19 230 68 -007 104 40 33 -10 -9-10 000 43 15 07 -14.0 -14.8 28.87 12 19 232 70 -006 109 38 32 -10 -9-10 000 44 15 08 -15.0 -15.6 28.87 11 17 234 72 -007 112 37 31 -10 -9-10 000 45 15 09 -15.8 -16.2 28.87 11 17 235 74 -009 116 38 30 -10 -9-10 000 46 15 10 -16.4 -16.8 28.87 11 16 234 72 -009 116 43 28 -11-10-10 000 47 15 11 -16.7 -17.1 28.87 11 16 232 71 -007 117 45 26 -11-10-10 000 48 15 12 -17.0 -17.4 28.86 10 17 231 69 -004 117 45 26 -11-10-10 000 49 15 13 -16.7 -17.4 28.86 11 17 230 68 -001 114 45 26 -11-10-10 000 50 15 14 -16.2 -17.7 28.87 10 16 227 66 007 104 44 28 -11-10-10 000 51 15 15 -15.8 -17.8 28.88 9 13 229 67 008 97 47 39 -11-11-11 000 52 15 16 -14.8 -17.6 28.88 11 16 236 74 012 89 44 41 -11-11-10 000 53 15 17 -14.5 -17.4 28.89 10 15 235 74 005 87 49 42 -11-11-11 000 54 15 18 -13.9 -17.1 28.89 9 14 238 77 001 84 96 39 -11-11-11 000 55 15 19 -13.2 -16.8 28.88 10 14 238 76 001 81 79 42 -11-11-11 000 56 15 20 -12.5 -16.4 28.88 10 16 238 76 000 78 74 67 -10-10-11 000 57 15 21 -11.7 -16.1 28.89 11 17 241 80 000 73 79 92 -10-10-11 000 58 15 22 -11.2 -15.8 28.90 12 18 244 83 000 72 64 91 -10-10-11 000 59 15 23 -11.4 -15.3 28.90 13 18 246 84 001 76 62 88 -10-10-11 000 60 16 00 -11.2 -13.4 28.90 12 21 240 78 001 92 97 72 -11-10-12 000 61 16 01 -11.7 -13.4 28.90 13 20 240 78 000 97 95 80 -11-10-12 000 62 16 02 -11.6 -13.0 28.90 13 19 243 81 000 100 97 67 -11-10-12 000 63 16 03 -11.0 -12.4 28.90 13 19 243 82 001 99101 73 -12-10-12 000 64 16 04 -11.4 -12.7 28.90 12 17 242 80 -001 100 81 87 -12-11-11 000 65 16 05 -11.5 -11.9 28.90 12 16 244 82 -002 110 73 80 -12-11-11 000 66 16 06 -12.0 -12.5 28.90 12 16 240 78 001 109112 52 -13-12-12 000 67 16 07 -11.8 -12.0 28.90 12 19 234 73 003 112113 25 -12-13-12 000 68 16 08 -11.5 -11.8 28.90 14 20 233 71 009 111113 29 -12-13-11 000 69 16 09 -11.7 -11.9 28.90 14 22 224 62 007 112112 27 -12-12-12 000 70 16 10 -12.0 -12.2 28.90 12 20 216 54 004 112109 29 -13-12-12 000 71 16 11 -12.3 -12.6 28.91 9 17 220 58 002 112109 26 -11-12-12 000 72 16 12 -13.4 -13.7 28.91 7 12 237 75 001 113103 26 -11-11-12 000 73 16 13 -13.8 -14.0 28.91 5 6 249 87 003 114102 42 -10-11-12 000 74 16 14 -14.0 -14.2 28.91 5 6 275 113 001 114 64 75 -10-11-11 000 75 16 15 -14.7 -14.9 28.91 4 5 265 103 000 115 45 74 -10-10-11 000 76 16 16 -15.2 -15.4 28.91 3 6 245 83 000 115 56 73 -10-10-11 000 77 16 17 -14.6 -15.3 28.91 3 8 245 84 -002 111 70 67 -10-10-11 000 78 16 18 -13.5 -14.7 28.90 4 7 254 92 000 104 79 43 -10-10-11 000 79 16 19 -13.0 -13.8 28.91 4 5 243 81 002 107 39 41 -10-10-11 000 80 16 20 -13.1 -13.4 28.91 2 3 216 54 000 111 51 33 -10-11-11 000 81 16 21 -12.4 -12.6 28.91 2 3 189 27 000 111112 27 -11-12-11 000 82 16 22 -10.3 -11.0 28.92 2 5 165 3 000 104112 48 -11-12-12 000 83 16 23 -9.4 -10.4 28.92 2 4 159 358 000 100112 48 -11-12-13 000 84 17 00 -9.2 -10.2 28.92 4 4 174 12 000 100112 50 -10-12-13 000 85 17 01 -9.3 -10.4 28.91 4 4 177 15 000 99112 58 -11-12-13 000 86 17 02 -9.3 -10.7 28.91 3 3 163 1 000 97112 62 -11-12-13 000 87 17 03 -9.5 -10.7 28.91 3 3 140 339 000 99112 50 -11-12-13 000 88 17 04 -9.8 -10.4 28.91 3 3 125 323 000 104113 32 -11-12-13 000 89 17 05 -10.3 -10.4 28.91 3 3 122 321 000 110113 23 -11-12-14 000 90 17 06 -10.5 -10.9 28.90 3 3 135 333 000 108113 29 -11-13-14 000 91 17 07 -10.5 -11.2 28.90 4 4 154 353 000 105113 56 -12-13-13 000 92 17 08 -10.8 -11.3 28.89 3 3 155 354 000 107114 98 -12-13-13 000 93 17 09 -10.7 -11.5 28.89 4 6 161 359 000 104113103 -12-13-13 000 94 17 10 -10.9 -11.4 28.89 6 6 146 345 000 108113104 -12-13-12 001 95 17 11 -11.4 -12.1 28.88 5 5 153 352 000 107102102 -12-12-11 000 96 17 12 -12.5 -13.0 28.88 4 8 160 358 000 110109102 -13-11-11 000 97 17 13 -12.1 -12.8 28.87 5 6 175 13 -001 107108104 -12-11-11 001 98 17 14 -12.9 -13.3 28.86 7 9 186 24 000 113102106 -12-11-11 002 99 17 15 -13.0 -13.3 28.85 6 10 180 18 -001 113107106 -10-11-11 005 100 17 16 -12.4 -12.9 28.84 7 11 170 9 000 109108108 -10-11-11 005 101 17 17 -11.7 -12.5 28.84 8 12 171 10 000 106108108 -10-10-11 006 102 17 18 -11.2 -12.2 28.83 9 12 175 13 000 103106106 -10-10-11 006 103 17 19 -10.8 -11.6 28.82 10 13 175 13 000 104100109 -10 -9-10 002 104 17 20 -10.3 -11.0 28.82 10 12 174 12 001 106101110 -9 -9-10 001 105 17 21 -10.0 -10.7 28.82 10 12 178 17 000 104101108 -10 -9-10 003 106 17 22 -9.5 -10.0 28.82 9 10 179 17 000 105100109 -10 -9-10 001 107 17 23 -9.2 -9.6 28.81 10 10 179 17 000 107100107 -10 -9-10 001 108 18 00 -8.8 -9.0 28.81 9 9 182 20 000 108 94108 -10 -9-10 001 109 18 01 -8.4 -8.9 28.80 8 9 179 17 -001 105 97110 -10 -9-10 002 110 18 02 -8.5 -8.8 28.79 8 9 179 18 000 106 99109 -10 -9-10 003 111 18 03 -8.6 -9.0 28.78 8 10 180 19 000 105103109 -10-10-10 002 112 18 04 -8.3 -8.9 28.78 8 10 183 21 000 104111104 -9-10-10 003 113 18 05 -8.3 -8.8 28.77 8 10 187 26 000 105111102 -9-11-11 005 114 18 06 -8.3 -8.7 28.77 6 8 189 27 001 105109104 -9-10-11 006 115 18 07 -8.4 -8.8 28.77 8 8 186 24 000 105110107 -9-10-11 004 116 18 08 -8.7 -9.0 28.77 7 7 201 39 000 106104109 -9-10-11 002 117 18 09 -8.8 -9.2 28.77 6 9 205 44 001 106110108 -9-10-10 004 118 18 10 -9.1 -9.3 28.77 7 9 194 32 000 109106110 -9-10-10 003 119 18 11 -9.3 -9.5 28.76 7 9 197 36 000 109 99108 -9 -9-10 002 120 18 12 -9.8 -10.0 28.76 7 8 189 27 002 109 93114 -9 -9-10 001 * 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.