USAP Roosevelt Island (ARI) site lat/lon = (-79.3633,-161.6268) cell lat/lon = (-79.3634,-161.6464) Forecast initialized at 2026-01-28/12 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 28 12 -11.0 -12.2 28.85 3 5 39 237 000 95 94 95 -8 -9-10 000 1 28 13 -12.5 -13.1 28.84 6 7 23 221 002 111100100 -8 -9-10 000 2 28 14 -12.9 -13.2 28.85 4 7 50 248 -001 113 99101 -9 -9-10 000 3 28 15 -12.3 -12.5 28.83 4 7 57 255 001 112 98 97 -9 -9-10 000 4 28 16 -11.8 -12.0 28.84 4 6 60 258 001 112 98 92 -9 -9-10 000 5 28 17 -11.5 -11.6 28.84 4 5 69 267 000 111 99 92 -9 -9-10 000 6 28 18 -10.9 -11.1 28.83 5 5 73 271 000 111 98 90 -9 -9-10 000 7 28 19 -10.3 -10.8 28.81 5 7 73 271 000 107101 85 -9 -9-10 000 8 28 20 -10.1 -10.6 28.80 5 6 74 273 000 106103 76 -9 -9-10 000 9 28 21 -9.7 -10.2 28.81 5 6 76 274 000 106104 69 -9 -9-10 000 10 28 22 -9.3 -9.9 28.82 6 6 80 278 000 105103 70 -9 -9-10 000 11 28 23 -9.3 -9.4 28.78 6 7 85 283 000 109101 73 -9 -9-10 000 12 29 00 -9.2 -9.2 28.76 7 7 89 288 -001 109 96 74 -9 -9-10 000 13 29 01 -9.4 -9.5 28.76 7 7 85 283 000 109 92 75 -9 -9-10 000 14 29 02 -9.7 -10.1 28.75 8 9 86 284 000 106 90 78 -9 -9-10 000 15 29 03 -10.1 -11.7 28.76 9 11 87 286 000 96 89 81 -9 -9 -9 000 16 29 04 -10.8 -13.2 28.76 9 13 91 289 000 89 88 83 -9 -9 -9 000 17 29 05 -11.5 -14.4 28.74 10 14 93 291 000 85 87 86 -9 -9 -9 000 18 29 06 -12.0 -15.4 28.72 10 14 95 293 000 81 87 92 -9 -9-10 000 19 29 07 -12.5 -16.1 28.71 10 15 99 297 000 79 88 94 -9 -9-10 000 20 29 08 -12.9 -16.9 28.70 10 16 102 301 000 77 89 96 -9 -9-10 001 21 29 09 -13.1 -17.2 28.70 11 17 103 301 000 76 90 96 -9 -9-10 001 22 29 10 -13.3 -17.3 28.69 12 19 102 301 000 77 83 95 -9 -9-10 001 23 29 11 -13.5 -17.4 28.67 13 20 101 300 000 78 89 96 -10 -9-10 001 24 29 12 -13.5 -17.3 28.66 13 20 100 299 001 79 91 95 -10 -9-10 002 25 29 13 -13.5 -17.1 28.65 13 21 100 299 002 81 94 94 -9 -9 -9 004 26 29 14 -13.0 -16.1 28.64 15 22 98 296 000 85 97 95 -9 -9 -9 010 27 29 15 -12.6 -15.2 28.64 15 22 97 296 -003 89 99 92 -9 -9 -9 016 28 29 16 -12.1 -14.6 28.62 16 23 97 296 -003 90100 90 -9 -9 -8 005 29 29 17 -11.9 -14.0 28.60 15 22 98 296 -006 92100 89 -9 -9 -8 006 30 29 18 -10.9 -12.5 28.60 14 19 99 297 -007 96 99 95 -9 -8 -8 008 31 29 19 -10.1 -11.3 28.60 13 17 98 297 -006 100101 95 -9 -8 -8 013 32 29 20 -9.6 -10.6 28.60 12 16 84 282 -007 101103 92 -9 -8 -7 017 33 29 21 -9.2 -10.2 28.60 12 15 78 276 -008 101102 94 -9 -8 -7 014 34 29 22 -8.8 -9.7 28.60 13 15 75 273 -010 102 98 92 -9 -7 -8 013 35 29 23 -8.6 -9.4 28.59 13 16 72 270 -008 102101 92 -9 -8 -8 015 36 30 00 -8.3 -9.0 28.58 13 16 77 275 -009 102 99 92 -9 -8 -8 017 37 30 01 -7.9 -8.6 28.58 13 15 75 274 -012 102 98 92 -9 -7 -8 019 38 30 02 -7.8 -8.3 28.58 13 15 76 275 -012 103 99 93 -8 -7 -8 021 39 30 03 -7.5 -8.0 28.58 13 16 73 271 -010 104 98 95 -8 -7 -8 018 40 30 04 -7.1 -7.6 28.58 13 17 74 272 -011 103 96 99 -7 -7 -7 008 41 30 05 -7.1 -7.8 28.58 11 14 70 269 -011 101 97 93 -7 -7 -7 006 42 30 06 -7.2 -7.8 28.58 11 13 71 270 -014 102 97 91 -7 -7 -7 009 43 30 07 -7.2 -7.7 28.58 10 12 71 270 -014 102 96 95 -7 -7 -7 015 44 30 08 -7.4 -7.9 28.58 9 12 74 272 -011 104 97 95 -7 -7 -7 012 45 30 09 -7.4 -8.0 28.58 9 14 75 274 -006 103 96 90 -6 -7 -7 014 46 30 10 -7.4 -7.7 28.58 9 15 74 272 -002 105 94 94 -7 -6 -7 014 47 30 11 -7.5 -7.7 28.59 11 16 73 271 -001 107 96 90 -6 -7 -7 013 48 30 12 -7.7 -7.8 28.59 10 14 74 272 -003 107 97 88 -7 -6 -7 010 49 30 13 -7.3 -7.5 28.60 10 14 67 265 -007 107 93 94 -7 -6 -7 010 50 30 14 -7.1 -7.2 28.61 9 13 66 264 -017 107 94100 -6 -6 -7 010 51 30 15 -7.0 -7.2 28.62 10 15 67 266 -007 107101105 -6 -7 -8 010 52 30 16 -6.4 -6.5 28.63 10 16 64 262 -012 106107102 -7 -7 -8 004 53 30 17 -6.1 -6.4 28.64 12 18 63 261 -003 104107110 -7 -7 -8 011 54 30 18 -6.1 -6.3 28.64 13 20 51 250 004 105108110 -7 -8 -8 010 55 30 19 -6.1 -6.3 28.64 13 20 52 250 -006 105102109 -7 -7 -8 008 56 30 20 -5.9 -6.1 28.65 11 21 52 251 -014 104108 93 -7 -8 -8 004 57 30 21 -6.0 -6.0 28.66 12 18 43 242 -003 106108 97 -7 -8 -8 002 58 30 22 -5.6 -5.7 28.68 12 17 47 245 -002 105108 95 -7 -7 -8 000 59 30 23 -5.6 -5.7 28.69 11 16 58 256 000 105103100 -7 -7 -8 001 60 31 00 -5.1 -6.6 28.70 11 17 81 279 001 92 89110 -6 -6 -7 000 61 31 01 -5.5 -6.8 28.71 11 18 62 260 000 94107109 -7 -7 -8 000 62 31 02 -5.4 -5.9 28.71 14 20 57 256 003 102107109 -6 -7 -8 002 63 31 03 -5.7 -6.2 28.71 18 26 54 253 012 102107108 -7 -7 -8 003 64 31 04 -5.5 -5.8 28.72 21 29 41 240 016 103107109 -6 -7 -8 011 65 31 05 -5.9 -6.0 28.72 22 30 42 241 021 106108110 -7 -8 -9 014 66 31 06 -6.0 -6.3 28.74 20 28 45 243 012 104108111 -7 -8 -9 024 67 31 07 -6.1 -6.5 28.75 19 28 46 245 005 103108110 -7 -8 -8 049 68 31 08 -5.9 -6.3 28.76 21 30 39 237 008 104107110 -6 -7 -8 058 69 31 09 -5.6 -6.0 28.78 23 33 28 226 008 103107108 -6 -7 -8 051 70 31 10 -5.9 -6.0 28.79 24 34 20 218 007 105108101 -6 -7 -8 044 71 31 11 -6.1 -6.3 28.81 25 34 15 214 011 105108 94 -7 -8 -8 031 72 31 12 -6.5 -6.8 28.83 23 32 15 213 008 104108 95 -7 -8 -9 026 73 31 13 -6.8 -7.3 28.85 22 31 15 214 003 103109 95 -8 -8 -9 024 74 31 14 -6.9 -7.5 28.87 21 30 17 215 001 102109 94 -8 -9 -9 029 75 31 15 -7.0 -7.5 28.89 20 28 17 215 002 103109 92 -8 -9 -9 026 76 31 16 -6.9 -7.3 28.91 20 27 19 217 004 104109 91 -8 -9 -9 018 77 31 17 -6.9 -7.1 28.92 19 27 19 217 002 106109 96 -8 -9 -9 012 78 31 18 -6.7 -6.9 28.93 19 28 16 215 -008 106109100 -8 -9 -9 009 79 31 19 -6.5 -6.7 28.95 16 25 23 221 -014 106108104 -7 -8 -9 006 80 31 20 -6.4 -6.5 28.96 12 18 35 233 -015 106108110 -7 -8 -9 008 81 31 21 -5.7 -6.5 28.97 8 15 48 246 007 99101111 -7 -7 -8 002 82 31 22 -5.6 -6.4 28.98 10 14 81 279 001 99108 99 -7 -8 -9 000 83 31 23 -5.6 -6.9 28.98 11 15 77 276 -009 94 99104 -6 -8 -9 000 84 01 00 -5.8 -6.7 28.99 12 15 73 271 -004 98 98 98 -7 -7 -8 000 85 01 01 -5.9 -6.8 28.99 10 14 72 270 -001 98 85101 -6 -6 -7 000 86 01 02 -5.8 -6.4 28.99 12 15 82 280 -007 100 90 98 -6 -6 -7 000 87 01 03 -5.3 -6.5 28.98 13 20 75 274 -007 94 97 94 -6 -7 -8 000 88 01 04 -4.7 -6.0 28.97 15 22 68 266 -004 93 98 91 -5 -6 -7 000 89 01 05 -5.6 -6.1 28.98 14 21 72 271 -002 102 98 86 -5 -6 -7 000 90 01 06 -5.6 -5.8 28.98 14 20 73 272 -009 105100 92 -5 -6 -7 000 91 01 07 -5.4 -5.5 28.98 12 18 62 261 -005 105 95107 -5 -6 -7 000 92 01 08 -7.1 -7.3 28.98 6 13 78 276 -004 107 97 87 -5 -6 -7 000 93 01 09 -6.6 -6.7 28.99 7 13 74 273 -002 106 94 92 -5 -6 -7 000 94 01 10 -7.2 -7.3 29.00 5 13 79 277 -001 107100108 -5 -6 -7 000 95 01 11 -6.1 -6.3 29.00 5 12 72 270 -004 106 99108 -5 -6 -6 000 96 01 12 -5.3 -5.5 28.99 5 14 69 267 -005 105105107 -5 -5 -6 004 97 01 13 -5.1 -5.2 28.99 6 14 71 270 -004 105106107 -5 -6 -6 006 98 01 14 -4.6 -4.7 28.98 9 16 88 286 008 104104 97 -5 -5 -5 006 99 01 15 -4.5 -4.8 28.98 11 15 85 283 -001 101105107 -5 -5 -5 002 100 01 16 -4.5 -5.0 28.97 13 18 86 284 -004 100105100 -5 -5 -5 004 101 01 17 -4.2 -4.7 28.96 12 17 90 288 000 99102102 -4 -4 -5 001 102 01 18 -4.3 -4.6 28.94 15 20 88 287 000 102 94 99 -5 -4 -4 000 103 01 19 -3.7 -4.6 28.93 15 23 83 281 -006 96104 85 -4 -5 -6 000 104 01 20 -3.0 -3.7 28.91 18 27 72 270 -005 96104 76 -4 -4 -5 000 105 01 21 -2.3 -2.9 28.91 18 26 67 266 -002 96103 95 -3 -4 -5 000 106 01 22 -1.7 -2.1 28.90 18 24 64 263 -005 98104 98 -3 -4 -4 002 107 01 23 -1.6 -1.9 28.88 17 21 61 260 -010 99102 92 -3 -3 -2 001 108 02 00 -1.4 -1.8 28.88 15 19 63 261 -007 97103 94 -2 -3 -2 000 109 02 01 -1.3 -1.6 28.87 13 16 68 267 -008 98 97102 -2 -2 -3 000 110 02 02 -1.2 -1.6 28.86 12 14 68 266 -010 97102103 -2 -2 -3 000 111 02 03 -1.2 -1.6 28.85 10 15 66 265 -004 97102103 -2 -2 -3 000 112 02 04 -1.3 -1.6 28.83 11 16 68 267 -008 98102103 -2 -2 -3 000 113 02 05 -1.4 -1.4 28.82 11 16 61 259 -007 101102103 -2 -2 -3 000 114 02 06 -1.4 -1.4 28.81 9 15 59 257 -004 101102104 -1 -2 -3 001 115 02 07 -1.3 -1.3 28.80 10 14 58 256 -007 101102104 -2 -2 -3 000 116 02 08 -1.3 -1.3 28.80 7 13 51 249 -001 101103 99 -2 -3 -3 000 117 02 09 -1.6 -1.6 28.79 6 12 80 278 000 101103 97 -2 -3 -3 001 118 02 10 -2.1 -2.3 28.78 5 11 74 272 -005 100 98101 -1 -2 -2 005 119 02 11 -2.0 -2.0 28.77 8 11 86 284 -003 102 94104 -1 -1 -2 006 120 02 12 -2.0 -2.0 28.76 8 11 99 297 001 102100104 -1 -2 -2 015 * 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.