USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2025-12-07/00 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 07 00 -4.8 -5.8 29.36 14 17 55 254 000 98 93 91 -8 -8 -9 000 1 07 01 -6.4 -6.6 29.35 15 18 49 247 -002 104109103 -8 -9-10 012 2 07 02 -6.3 -6.8 29.36 16 17 53 251 -005 102109103 -8 -9-10 018 3 07 03 -6.3 -6.8 29.35 15 18 56 255 -007 102109105 -7 -9-10 014 4 07 04 -6.4 -7.0 29.33 16 18 61 259 -003 102109104 -8 -9 -9 020 5 07 05 -6.5 -7.0 29.33 16 19 63 261 002 102109106 -7 -8 -9 043 6 07 06 -6.1 -7.0 29.34 14 17 51 249 004 98106112 -7 -8 -9 125 7 07 07 -5.9 -6.7 29.33 13 16 47 246 003 99108111 -7 -8 -9 075 8 07 08 -6.0 -6.8 29.31 12 15 29 228 004 99108112 -7 -8-10 041 9 07 09 -6.3 -7.0 29.31 12 15 37 235 004 100109109 -7 -9 -9 032 10 07 10 -6.3 -7.0 29.31 13 18 50 248 003 100108107 -7 -8 -9 031 11 07 11 -6.3 -7.1 29.30 15 18 50 248 005 100109113 -7 -8 -9 040 12 07 12 -6.5 -7.2 29.29 15 18 38 236 005 101109109 -7 -9-10 053 13 07 13 -6.9 -7.5 29.28 15 20 43 241 002 102107107 -8 -9-10 046 14 07 14 -7.2 -7.6 29.28 14 19 54 252 -001 105106113 -8 -9 -9 031 15 07 15 -7.5 -7.7 29.28 13 17 56 255 -006 107106 87 -8 -9 -9 008 16 07 16 -7.6 -7.8 29.28 12 16 63 262 -008 107104 83 -8 -9 -9 007 17 07 17 -7.6 -7.7 29.27 12 15 74 273 -002 107101 75 -8 -9-10 001 18 07 18 -7.3 -7.4 29.25 12 15 84 283 000 107 97 71 -8 -9-10 000 19 07 19 -7.0 -7.2 29.25 11 13 87 285 -002 105100 70 -8 -9 -9 000 20 07 20 -6.8 -6.9 29.24 12 13 85 283 003 106102 76 -8 -9 -9 000 21 07 21 -6.2 -7.0 29.24 11 13 80 279 001 99109 83 -8 -9 -9 003 22 07 22 -5.8 -7.2 29.24 10 11 81 280 -001 94109 86 -7 -9 -9 004 23 07 23 -5.5 -7.1 29.23 8 8 96 294 000 92108 86 -7 -8 -9 002 24 08 00 -5.2 -7.2 29.24 5 6 124 322 000 88106 87 -6 -8 -9 002 25 08 01 -5.0 -7.3 29.25 6 6 162 0 000 86103104 -6 -8 -9 001 26 08 02 -4.9 -7.9 29.26 6 6 194 33 002 81 95102 -6 -8 -9 001 27 08 03 -5.3 -6.9 29.28 10 11 177 15 002 92 97112 -7 -8 -9 000 28 08 04 -5.7 -7.0 29.29 10 11 188 27 003 94 91112 -7 -8 -9 001 29 08 05 -6.7 -7.6 29.30 11 13 200 39 001 99 88 99 -8 -8 -9 005 30 08 06 -6.5 -7.1 29.31 12 16 195 33 003 102103114 -8 -9-10 034 31 08 07 -7.1 -7.2 29.33 12 14 213 51 002 107 99 98 -8 -9-10 000 32 08 08 -7.6 -7.7 29.35 12 17 224 62 003 107109 88 -8-10-10 001 33 08 09 -8.0 -8.1 29.37 13 18 228 67 008 108105 88 -9-10-10 001 34 08 10 -8.3 -8.5 29.39 13 19 231 70 012 108105 87 -9-10-10 000 35 08 11 -8.8 -8.9 29.40 13 18 235 74 009 109 99 89 -10-10-10 000 36 08 12 -8.9 -9.0 29.42 13 17 238 76 010 109101 93 -10-10-10 000 37 08 13 -9.2 -9.4 29.44 13 19 241 79 008 109 94 88 -10 -9-10 000 38 08 14 -8.9 -9.0 29.45 15 18 241 80 008 109 99 68 -10 -9-10 000 39 08 15 -8.7 -8.9 29.47 15 22 240 79 007 109 87 68 -10 -9-10 000 40 08 16 -8.8 -8.9 29.49 14 21 237 75 007 109 97 65 -10 -9-10 000 41 08 17 -8.7 -8.9 29.50 12 18 241 79 -002 108 99 64 -9 -9-10 000 42 08 18 -7.6 -8.4 29.51 12 18 255 94 -006 101102 57 -8 -9-10 000 43 08 19 -6.9 -8.0 29.53 13 16 273 111 -006 97110 83 -8 -9-11 000 44 08 20 -6.7 -8.3 29.54 13 15 268 106 -005 92105 77 -8 -9-11 000 45 08 21 -7.0 -8.7 29.55 13 14 265 103 -005 92109 71 -8-10-11 000 46 08 22 -7.0 -8.1 29.57 10 12 262 100 -002 98110 80 -8-10-11 000 47 08 23 -7.2 -8.8 29.58 9 11 267 106 000 94110 83 -8-10-11 000 48 09 00 -7.9 -7.9 29.58 8 10 269 108 000 108 80 78 -9-10-11 000 49 09 01 -8.1 -9.5 29.59 7 10 268 107 -001 95 86 70 -9-10-11 000 50 09 02 -8.1 -10.4 29.59 7 10 264 102 -002 89 80 56 -9-10-10 000 51 09 03 -8.3 -10.5 29.60 7 9 257 95 001 88 78 67 -9 -9-10 000 52 09 04 -8.4 -10.0 29.60 5 7 256 94 000 95 77 61 -9 -9-10 000 53 09 05 -8.8 -10.0 29.60 4 6 265 104 004 98 70 58 -8 -9-10 000 54 09 06 -9.6 -10.6 29.60 4 5 275 113 002 101 75 64 -8 -9-10 000 55 09 07 -9.7 -10.3 29.59 2 3 285 124 003 105 70 64 -8 -9-10 000 56 09 08 -9.9 -10.4 29.58 0 3 312 150 -006 106 67 64 -8 -9-10 000 57 09 09 -10.3 -10.7 29.58 3 8 58 257 003 106 85 61 -8-10-10 000 58 09 10 -11.4 -11.8 29.57 7 11 68 266 000 111 71 58 -9 -9-10 000 59 09 11 -10.8 -11.0 29.55 7 11 69 268 000 111 69 51 -9 -9-10 000 60 09 12 -12.4 -12.7 29.54 8 13 81 279 000 112 73 49 -9 -9-10 000 61 09 13 -11.3 -11.5 29.53 11 15 83 281 000 111 73 37 -9 -9-10 000 62 09 14 -10.6 -10.9 29.51 11 16 83 281 001 110 85 44 -10 -9-10 000 63 09 15 -9.9 -10.1 29.49 12 17 81 279 -004 110 95 92 -8 -9-10 000 64 09 16 -9.3 -9.5 29.47 12 17 82 281 -003 109 80 84 -8 -8-10 000 65 09 17 -8.6 -8.7 29.45 14 18 79 277 002 108 83 65 -9 -8-10 000 66 09 18 -7.9 -8.1 29.44 15 18 85 284 001 108 85 81 -9 -8-10 000 67 09 19 -7.6 -7.7 29.42 14 17 87 286 -001 107 87 87 -9 -8 -9 000 68 09 20 -7.5 -8.3 29.41 13 18 84 283 002 101 95 80 -9 -9 -9 000 69 09 21 -7.3 -8.4 29.39 15 21 85 284 002 98 88 62 -8 -9-10 000 70 09 22 -7.2 -9.0 29.37 16 23 86 284 -002 91 90 56 -8 -9-10 000 71 09 23 -7.0 -8.7 29.36 19 25 88 286 000 91 74 50 -8 -9-10 000 72 10 00 -7.1 -9.6 29.34 19 25 92 290 -004 85 68 47 -8 -9-10 000 73 10 01 -7.6 -9.8 29.32 19 25 94 292 -005 87 61 53 -9 -9-10 000 74 10 02 -7.6 -9.6 29.30 18 23 94 292 -005 90 68 59 -9 -9-10 000 75 10 03 -7.7 -9.1 29.28 17 21 97 296 -006 96 72 73 -9 -9 -9 000 76 10 04 -7.8 -9.0 29.25 16 21 99 298 -008 97 85 79 -8 -8 -9 000 77 10 05 -7.9 -8.9 29.23 15 21 93 291 -007 99 97 80 -8 -8 -9 000 78 10 06 -7.8 -8.7 29.21 15 22 90 289 -008 100 97 87 -7 -8 -9 000 79 10 07 -7.7 -8.3 29.19 15 22 91 289 -005 103 83 86 -7 -8 -8 000 80 10 08 -7.6 -7.8 29.17 15 21 90 288 -002 107 76 79 -7 -8 -8 000 81 10 09 -7.7 -7.8 29.15 14 21 87 285 000 107 89 88 -7 -7 -8 000 82 10 10 -8.0 -8.1 29.13 13 20 97 295 002 108 91 88 -7 -7 -7 002 83 10 11 -8.2 -8.4 29.12 15 23 95 293 002 108 92 84 -7 -7 -7 000 84 10 12 -8.2 -8.3 29.10 15 22 96 295 001 108 90 85 -6 -6 -6 000 85 10 13 -8.4 -8.6 29.08 14 23 101 299 001 108 91 86 -6 -6 -6 000 86 10 14 -7.8 -8.5 29.06 17 25 97 295 002 102101 85 -6 -6 -7 001 87 10 15 -7.4 -8.2 29.04 16 24 96 294 000 101107 87 -7 -7 -7 003 88 10 16 -6.9 -7.6 29.02 17 25 97 296 -002 101103 88 -6 -7 -6 003 89 10 17 -6.1 -6.2 29.01 16 22 92 291 -004 106107 89 -6 -7 -7 002 90 10 18 -5.9 -6.1 28.99 16 23 95 293 -006 105101 92 -6 -6 -7 010 91 10 19 -5.6 -6.0 28.98 16 23 89 288 -012 103104 94 -6 -7 -7 022 92 10 20 -5.1 -5.6 28.96 16 22 84 282 -013 101103 97 -6 -6 -7 048 93 10 21 -4.5 -4.9 28.95 16 20 87 285 -009 101103 97 -6 -6 -6 041 94 10 22 -3.6 -4.0 28.94 16 19 84 282 -010 99106102 -5 -6 -7 039 95 10 23 -3.2 -3.3 28.93 16 18 73 272 -010 102105108 -4 -5 -6 026 96 11 00 -3.0 -3.0 28.91 16 20 69 267 000 103105107 -4 -5 -6 016 97 11 01 -2.6 -2.6 28.90 17 21 59 257 -002 102105101 -4 -5 -5 019 98 11 02 -2.9 -3.3 28.89 14 16 16 214 -002 99105 99 -4 -5 -6 046 99 11 03 -3.3 -3.9 28.88 14 17 24 222 007 98100103 -4 -5 -5 022 100 11 04 -3.6 -4.1 28.87 13 17 40 238 -006 100 99108 -5 -5 -6 011 101 11 05 -3.8 -4.0 28.85 14 19 47 245 -011 102 98109 -5 -5 -6 009 102 11 06 -3.7 -3.9 28.85 12 14 50 248 -008 102106108 -4 -6 -7 004 103 11 07 -3.5 -4.0 28.84 11 14 57 255 -006 100101109 -4 -5 -6 014 104 11 08 -3.5 -3.9 28.83 8 12 41 240 -001 100105110 -4 -5 -6 049 105 11 09 -3.9 -4.0 28.82 9 15 30 228 -006 104106107 -5 -6 -6 071 106 11 10 -4.4 -4.6 28.82 8 10 20 218 -008 103106110 -5 -6 -7 013 107 11 11 -4.5 -4.6 28.82 8 12 24 223 -002 104107111 -5 -7 -8 030 108 11 12 -4.6 -5.0 28.82 10 12 12 210 -002 102107111 -5 -7 -8 032 109 11 13 -4.8 -5.3 28.82 7 8 7 205 -001 100 98111 -6 -7 -8 017 110 11 14 -4.9 -5.3 28.82 7 10 5 203 000 102 91111 -6 -7 -8 020 111 11 15 -4.9 -4.9 28.83 7 9 10 208 -001 105101111 -6 -7 -8 004 112 11 16 -4.8 -5.0 28.83 7 8 3 201 -002 103 94111 -6 -7 -8 006 113 11 17 -4.6 -5.3 28.84 6 8 8 206 000 98 91110 -6 -6 -8 003 114 11 18 -4.2 -5.3 28.85 6 7 0 199 001 95 94109 -5 -6 -8 002 115 11 19 -4.1 -5.3 28.86 7 8 357 195 -001 94 96110 -5 -6 -7 013 116 11 20 -3.7 -4.7 28.87 7 9 339 178 000 95106111 -5 -6 -7 019 117 11 21 -3.5 -5.2 28.89 9 11 309 147 000 89102111 -5 -6 -7 015 118 11 22 -3.3 -4.7 28.90 11 14 320 158 000 91 98110 -5 -6 -7 005 119 11 23 -3.4 -4.5 28.92 13 17 283 121 001 94104108 -5 -6 -7 031 120 12 00 -3.4 -4.2 28.93 17 23 282 120 001 97105110 -5 -6 -7 068 * 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.