USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2026-01-29/12 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 29 12 -14.2 -17.5 28.67 10 18 118 316 000 68 76 88 -10-10-10 000 1 29 13 -14.4 -17.6 28.65 13 20 102 301 000 85 88 92 -10-10-10 001 2 29 14 -15.0 -18.3 28.66 13 21 104 302 000 84 90 89 -10-10-10 000 3 29 15 -14.8 -18.2 28.65 13 21 102 301 002 83 89 90 -10 -9 -9 000 4 29 16 -14.5 -17.8 28.63 13 21 102 300 002 84 91 92 -10 -9 -9 000 5 29 17 -14.1 -17.3 28.63 14 22 102 300 002 85 94 92 -9 -9 -9 000 6 29 18 -13.1 -16.0 28.61 15 21 101 299 003 87 93 93 -9 -9 -8 001 7 29 19 -12.0 -14.5 28.60 14 21 98 296 002 90 93 95 -9 -8 -8 002 8 29 20 -11.1 -13.0 28.61 15 21 96 294 003 95 94 96 -9 -8 -8 006 9 29 21 -10.2 -11.5 28.62 14 20 93 292 003 100 96 96 -9 -8 -7 008 10 29 22 -9.4 -10.3 28.61 14 19 90 288 001 102 99 96 -9 -8 -7 008 11 29 23 -8.9 -9.8 28.57 13 17 89 288 000 101 99 98 -9 -8 -8 013 12 30 00 -8.6 -9.6 28.59 13 16 91 290 -001 100 98 97 -8 -7 -8 020 13 30 01 -8.7 -9.6 28.58 12 15 88 287 -002 101 99 95 -8 -7 -8 018 14 30 02 -8.7 -9.5 28.58 12 15 84 282 -003 102 98 93 -8 -7 -7 006 15 30 03 -8.6 -9.2 28.60 11 14 78 276 -006 104 99 91 -8 -7 -7 004 16 30 04 -8.3 -8.8 28.60 11 14 78 277 -008 105102 92 -7 -7 -7 004 17 30 05 -8.2 -8.7 28.59 10 14 82 280 -009 105106 91 -7 -7 -7 007 18 30 06 -7.9 -8.4 28.59 10 14 80 278 -011 105103 98 -7 -7 -7 007 19 30 07 -7.6 -7.8 28.59 10 14 82 280 -010 107107 98 -7 -7 -7 004 20 30 08 -7.4 -7.6 28.59 10 14 79 278 -009 107100 97 -7 -7 -8 006 21 30 09 -7.4 -7.6 28.58 9 13 82 280 -008 107 98100 -6 -7 -7 007 22 30 10 -7.4 -7.6 28.59 10 13 82 280 -007 107 99 98 -7 -7 -7 009 23 30 11 -7.3 -7.4 28.59 10 13 80 278 -009 107 97 96 -6 -6 -7 009 24 30 12 -7.1 -7.2 28.59 10 15 67 265 -007 107 96 95 -6 -6 -7 009 25 30 13 -7.1 -7.2 28.60 11 15 68 266 -010 107 98 92 -6 -7 -7 010 26 30 14 -6.8 -7.0 28.61 11 15 65 263 -008 106 96 94 -7 -6 -7 011 27 30 15 -6.6 -6.8 28.62 10 15 64 262 -007 106 96 95 -6 -6 -7 015 28 30 16 -6.4 -6.6 28.61 10 14 63 262 -009 105 99 96 -6 -7 -8 021 29 30 17 -6.2 -6.7 28.61 9 14 59 258 -007 103100 95 -6 -7 -8 029 30 30 18 -6.0 -6.5 28.63 9 12 56 254 -005 102103 93 -7 -7 -7 020 31 30 19 -5.9 -6.6 28.64 11 17 36 235 -004 100101 89 -7 -7 -8 018 32 30 20 -5.7 -6.3 28.65 12 20 38 237 -005 101108 85 -7 -8 -8 010 33 30 21 -5.7 -6.2 28.67 12 19 46 245 -013 101105 92 -7 -7 -8 006 34 30 22 -5.4 -6.0 28.67 11 16 44 243 -007 100106 94 -7 -7 -8 004 35 30 23 -5.3 -6.1 28.68 10 17 51 249 000 98101102 -6 -7 -8 003 36 31 00 -5.1 -6.0 28.69 10 16 46 244 -006 97105 95 -6 -7 -8 005 37 31 01 -5.0 -6.1 28.70 11 17 47 245 -011 96103 94 -6 -7 -8 003 38 31 02 -5.2 -6.1 28.71 12 19 53 251 -013 97103 99 -6 -7 -7 003 39 31 03 -5.3 -6.1 28.72 13 21 58 257 -008 99102102 -6 -7 -8 003 40 31 04 -5.5 -5.8 28.72 17 23 60 259 -002 103105106 -6 -7 -8 011 41 31 05 -5.3 -5.4 28.72 18 26 49 247 -003 105107100 -6 -7 -8 011 42 31 06 -5.2 -5.4 28.73 22 30 40 238 002 105107 97 -6 -7 -8 006 43 31 07 -5.3 -5.4 28.74 24 32 36 234 010 105107 95 -6 -7 -8 008 44 31 08 -5.4 -5.6 28.75 24 32 34 232 013 105107 99 -6 -7 -8 012 45 31 09 -5.7 -5.8 28.76 23 31 35 233 020 105107101 -6 -7 -8 019 46 31 10 -6.0 -6.1 28.78 21 30 36 235 023 106107102 -6 -7 -8 031 47 31 11 -6.1 -6.3 28.79 20 30 35 234 017 105108104 -7 -7 -8 042 48 31 12 -6.3 -6.6 28.80 21 30 36 234 014 105108104 -7 -8 -9 045 49 31 13 -6.5 -6.8 28.82 21 30 35 233 015 106108104 -7 -8 -9 042 50 31 14 -7.0 -7.2 28.84 21 30 35 234 016 106108103 -7 -8 -9 036 51 31 15 -7.1 -7.3 28.85 21 30 33 231 010 107108107 -8 -8 -9 024 52 31 16 -7.0 -7.2 28.87 21 30 31 230 006 106108102 -8 -8 -9 016 53 31 17 -6.9 -7.1 28.88 21 30 30 228 -002 106108102 -8 -8 -8 019 54 31 18 -6.7 -6.9 28.88 22 30 28 226 -003 106108 86 -7 -8 -8 012 55 31 19 -6.7 -6.8 28.88 22 29 32 230 001 106109105 -8 -8 -8 009 56 31 20 -6.6 -7.0 28.90 21 29 34 232 -007 104109104 -8 -9 -9 011 57 31 21 -6.5 -6.8 28.91 19 25 42 241 -008 104109106 -7 -9-10 011 58 31 22 -6.1 -6.6 28.92 18 25 37 236 002 102108106 -7 -8 -9 016 59 31 23 -6.1 -6.5 28.93 18 25 41 239 004 102108104 -7 -8 -9 014 60 01 00 -5.9 -6.5 28.94 20 26 41 239 002 101108 97 -7 -8 -9 012 61 01 01 -5.9 -6.4 28.93 21 28 38 236 007 101108 95 -7 -8 -9 011 62 01 02 -5.6 -6.0 28.93 22 28 38 237 012 102107 87 -7 -8 -9 012 63 01 03 -5.7 -6.0 28.93 22 28 35 234 010 103108 84 -7 -8 -8 010 64 01 04 -5.7 -6.1 28.93 21 28 35 233 002 103108 87 -7 -8 -9 011 65 01 05 -5.9 -6.3 28.93 21 27 31 230 -004 103103 88 -7 -8 -8 016 66 01 06 -6.0 -6.5 28.94 17 23 37 235 -006 102105 96 -7 -8 -9 026 67 01 07 -5.8 -6.3 28.94 17 21 42 240 -002 102103 97 -7 -7 -9 032 68 01 08 -5.9 -6.4 28.95 15 22 39 237 -004 102108103 -7 -8 -9 030 69 01 09 -5.7 -5.8 28.96 15 18 42 240 -007 105108112 -6 -8 -8 026 70 01 10 -5.9 -6.1 28.95 14 20 38 237 -016 105108101 -7 -8 -9 020 71 01 11 -6.0 -6.1 28.95 13 18 38 236 -012 106108111 -7 -8 -9 016 72 01 12 -5.9 -6.1 28.95 12 17 37 235 -001 106108111 -6 -7 -9 019 73 01 13 -5.9 -6.0 28.95 11 16 38 236 -013 106107107 -6 -7 -8 014 74 01 14 -5.9 -6.1 28.95 10 15 34 232 -022 106108111 -6 -7 -8 009 75 01 15 -5.9 -6.1 28.95 10 16 29 228 -009 105107108 -6 -7 -8 011 76 01 16 -5.8 -6.0 28.95 9 15 40 238 -005 105107110 -6 -7 -8 009 77 01 17 -5.7 -5.8 28.95 10 15 34 232 -004 105107100 -6 -7 -8 007 78 01 18 -5.4 -5.5 28.95 10 15 33 231 -010 105107103 -6 -7 -8 004 79 01 19 -4.9 -5.0 28.95 10 14 29 227 -007 105107110 -6 -7 -8 011 80 01 20 -4.6 -4.7 28.95 11 15 9 207 000 104107106 -5 -7 -7 009 81 01 21 -4.5 -4.7 28.95 11 13 4 202 000 103107106 -5 -6 -7 009 82 01 22 -4.4 -4.4 28.96 9 11 11 210 -003 104106109 -5 -6 -7 005 83 01 23 -4.3 -4.3 28.96 10 11 20 219 -004 104106108 -5 -6 -7 005 84 02 00 -4.2 -4.4 28.95 9 11 23 221 000 103106107 -5 -6 -7 006 85 02 01 -4.2 -4.6 28.94 10 12 37 235 -002 101105106 -5 -6 -7 008 86 02 02 -4.1 -4.3 28.94 10 14 49 248 -004 102106 89 -5 -6 -7 003 87 02 03 -4.3 -4.3 28.93 13 15 44 242 -005 104106100 -5 -6 -6 005 88 02 04 -4.4 -4.5 28.92 13 15 51 249 -006 104101 98 -5 -6 -6 005 89 02 05 -4.2 -4.3 28.91 13 15 47 245 -008 104102104 -5 -6 -6 005 90 02 06 -4.4 -4.5 28.91 13 16 50 248 -004 104 99107 -5 -5 -6 003 91 02 07 -4.4 -4.5 28.90 13 16 54 252 -004 104 96107 -4 -5 -5 003 92 02 08 -4.3 -4.4 28.89 11 14 53 252 -004 104101103 -4 -5 -6 006 93 02 09 -4.2 -4.3 28.89 11 14 58 256 -008 104 98107 -4 -5 -5 003 94 02 10 -4.2 -4.3 28.89 10 13 62 260 -017 104 97105 -4 -4 -5 002 95 02 11 -3.8 -3.9 28.88 10 14 73 271 -017 103100101 -4 -4 -5 004 96 02 12 -3.4 -3.5 28.88 9 14 78 276 -006 103104105 -3 -4 -5 026 97 02 13 -3.2 -3.4 28.87 9 12 67 266 -007 102101102 -3 -4 -5 061 98 02 14 -3.1 -3.3 28.87 8 10 65 263 -008 102103103 -3 -4 -5 076 99 02 15 -3.1 -3.1 28.86 8 11 75 274 -001 102103105 -3 -4 -5 052 100 02 16 -2.9 -2.9 28.85 8 13 75 273 -006 103104106 -3 -4 -5 021 101 02 17 -2.8 -2.8 28.85 16 21 40 238 -004 102104106 -3 -4 -5 031 102 02 18 -2.8 -2.9 28.85 14 20 32 231 -006 103104106 -3 -4 -5 009 103 02 19 -3.0 -3.1 28.86 13 19 16 215 -004 103104106 -4 -4 -5 012 104 02 20 -2.8 -2.9 28.86 14 20 24 223 -007 103105106 -4 -5 -5 012 105 02 21 -2.7 -3.2 28.87 15 21 25 223 000 98104103 -4 -5 -5 012 106 02 22 -2.9 -3.3 28.88 15 22 24 223 -004 100105100 -4 -5 -5 014 107 02 23 -2.7 -3.0 28.88 15 22 26 224 -013 100104104 -4 -4 -4 006 108 03 00 -3.0 -3.0 28.88 13 20 26 224 -003 103105106 -4 -5 -5 007 109 03 01 -3.1 -3.1 28.88 13 19 25 224 -003 103104106 -4 -4 -5 009 110 03 02 -3.0 -3.1 28.88 12 18 28 226 002 103104106 -4 -4 -4 012 111 03 03 -3.0 -3.1 28.87 14 22 24 222 002 103104 94 -4 -4 -5 002 112 03 04 -3.0 -3.0 28.87 12 18 12 210 -003 103105100 -4 -5 -5 000 113 03 05 -3.4 -3.4 28.86 14 19 10 209 000 103105 95 -4 -4 -5 005 114 03 06 -3.4 -3.4 28.86 15 21 13 211 000 103105 92 -4 -5 -5 010 115 03 07 -3.4 -3.5 28.87 14 19 15 214 -005 103105102 -4 -4 -6 013 116 03 08 -3.6 -3.6 28.87 13 21 16 215 -005 103105 99 -4 -5 -6 002 117 03 09 -3.8 -3.8 28.86 13 19 9 207 -011 103102 88 -4 -5 -5 002 118 03 10 -4.1 -4.2 28.86 12 17 13 211 -012 104100 89 -4 -5 -6 000 119 03 11 -4.3 -4.4 28.86 10 15 17 215 -008 104104 92 -5 -5 -6 000 120 03 12 -4.8 -4.9 28.86 8 14 13 211 -003 104102 98 -5 -5 -6 000 * 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.