USAP Shackleton Glacier site lat/lon = (-85.0800,-175.3800) cell lat/lon = (-85.0689,-175.3710) Forecast initialized at 2025-12-21/00 UTC MPAS cell scale: 2.3 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 21 00 -19.2 -26.2 29.00 1 1 189 14 000 60 59 61 -17-17-19 000 1 21 01 -15.8 -21.7 29.00 2 2 45 229 -002 67 45 62 -16-17-18 000 2 21 02 -15.2 -21.4 29.00 1 3 57 242 000 65 46 62 -16-17-18 000 3 21 03 -14.9 -21.3 28.99 1 2 30 215 002 61 46 61 -16-17-18 000 4 21 04 -15.0 -19.4 29.00 2 2 7 191 000 68 45 60 -15-17-18 000 5 21 05 -15.4 -19.4 29.02 2 3 349 173 000 76 43 54 -16-17-18 000 6 21 06 -15.7 -21.3 29.01 2 4 95 280 -001 64 52 54 -15-17-18 000 7 21 07 -15.6 -24.6 29.01 0 4 51 236 000 48 74 53 -16-17-18 000 8 21 08 -16.7 -21.1 29.02 3 4 186 11 000 75 77 57 -16-17-18 000 9 21 09 -17.7 -20.0 29.01 5 5 153 338 000 96 79 60 -16-17-18 000 10 21 10 -17.8 -21.7 29.03 5 5 114 299 000 77 82 65 -17-17-18 000 11 21 11 -17.6 -20.5 29.03 4 4 92 277 000 88 81 75 -16-17-18 000 12 21 12 -17.7 -22.4 29.01 5 5 60 244 001 69 64 68 -16-17-18 000 13 21 13 -17.7 -22.4 29.01 5 5 51 236 001 70 64 68 -16-17-19 000 14 21 14 -17.7 -22.9 29.02 6 6 37 222 000 64 57 68 -16-17-18 000 15 21 15 -17.8 -22.5 29.03 6 6 24 209 000 69 63 67 -16-17-18 000 16 21 16 -17.8 -23.1 29.03 4 4 31 216 000 63 63 65 -16-17-18 000 17 21 17 -17.3 -23.6 29.02 3 3 25 209 000 58 51 60 -16-17-18 000 18 21 18 -16.6 -23.7 29.01 3 3 58 242 000 56 52 59 -16-17-18 000 19 21 19 -16.5 -23.1 29.02 2 2 82 267 000 57 55 59 -16-17-19 000 20 21 20 -16.1 -22.5 29.02 3 3 67 251 000 51 53 57 -16-17-18 000 21 21 21 -15.7 -22.0 29.01 4 4 75 259 000 53 49 56 -16-17-18 000 22 21 22 -15.2 -20.5 29.01 3 4 88 273 000 64 46 57 -15-17-18 000 23 21 23 -14.9 -20.2 29.00 2 3 92 276 000 68 45 59 -15-17-18 000 24 22 00 -14.7 -18.9 28.99 0 1 339 164 001 79 43 57 -15-16-18 000 25 22 01 -15.0 -21.5 29.00 1 1 296 120 001 63 43 56 -15-16-17 000 26 22 02 -15.1 -21.6 29.00 0 1 346 171 001 61 44 53 -15-16-17 000 27 22 03 -15.1 -19.6 28.99 0 1 47 232 001 70 48 50 -15-16-17 000 28 22 04 -15.2 -19.3 28.99 0 1 42 227 000 75 54 48 -15-16-17 000 29 22 05 -15.4 -19.2 28.98 0 1 47 231 001 82 55 47 -15-16-17 000 30 22 06 -15.5 -19.7 28.98 1 1 31 216 000 79 55 49 -15-16-17 000 31 22 07 -15.7 -22.3 28.98 2 2 33 218 000 62 53 52 -15-16-17 000 32 22 08 -16.2 -23.2 28.98 3 3 34 219 000 55 51 55 -15-16-17 000 33 22 09 -16.5 -23.6 28.98 4 4 42 227 000 53 49 56 -15-16-18 000 34 22 10 -16.8 -24.3 28.97 4 4 42 227 000 51 49 57 -15-17-18 000 35 22 11 -16.9 -24.7 28.97 4 4 43 228 000 51 49 58 -15-17-18 000 36 22 12 -17.1 -24.9 28.98 4 7 47 231 000 51 49 58 -16-17-18 000 37 22 13 -17.1 -25.0 28.98 4 9 49 233 000 51 50 57 -16-17-18 000 38 22 14 -17.4 -25.1 28.99 4 10 43 228 000 50 52 53 -16-17-18 000 39 22 15 -17.1 -25.0 28.98 3 9 34 219 000 53 52 52 -16-17-18 000 40 22 16 -17.0 -24.8 28.98 2 10 27 212 000 56 51 52 -16-17-18 000 41 22 17 -16.8 -24.8 28.98 2 11 28 213 000 54 51 53 -16-17-18 000 42 22 18 -16.6 -24.6 28.98 2 9 24 208 000 54 51 54 -16-17-18 000 43 22 19 -16.6 -23.3 28.98 3 5 14 199 000 54 48 51 -16-17-17 000 44 22 20 -16.1 -22.0 28.98 3 3 25 209 000 57 44 50 -16-16-17 000 45 22 21 -15.4 -21.2 28.98 2 2 50 235 000 61 42 49 -15-16-17 000 46 22 22 -14.9 -20.7 28.98 2 3 83 267 000 60 42 48 -15-16-17 000 47 22 23 -14.5 -19.7 28.99 2 4 105 290 000 60 42 48 -15-16-17 000 48 23 00 -14.2 -19.1 28.99 2 4 115 299 000 63 41 48 -15-16-17 000 49 23 01 -14.1 -18.9 28.99 2 4 136 321 001 62 38 48 -14-15-17 000 50 23 02 -14.2 -19.5 28.99 3 4 155 340 001 58 40 48 -14-15-17 000 51 23 03 -14.3 -19.9 29.00 3 3 143 327 001 56 44 47 -14-15-16 000 52 23 04 -14.4 -20.3 29.00 3 3 130 315 000 56 45 49 -14-15-16 000 53 23 05 -14.1 -24.0 29.00 1 1 120 304 000 43 40 49 -14-15-16 000 54 23 06 -14.5 -23.5 28.99 0 3 331 156 001 48 37 48 -14-15-16 000 55 23 07 -15.3 -21.8 28.99 5 5 30 214 000 53 36 47 -14-15-16 000 56 23 08 -15.5 -22.9 28.99 6 6 35 219 000 45 37 48 -14-15-16 000 57 23 09 -16.0 -23.3 29.00 6 6 25 209 001 47 41 45 -14-15-16 000 58 23 10 -16.0 -24.0 29.01 5 5 38 222 -002 45 42 44 -14-15-16 000 59 23 11 -15.8 -25.5 29.02 4 4 21 205 003 43 38 42 -14-15-16 000 60 23 12 -16.5 -24.7 29.02 5 5 4 189 -002 46 40 42 -14-15-16 000 61 23 13 -16.5 -24.5 29.02 5 8 24 208 008 45 39 41 -14-15-16 000 62 23 14 -15.5 -25.9 29.03 4 16 78 263 000 39 36 39 -13-15-16 000 63 23 15 -15.9 -23.2 29.04 9 20 98 283 000 47 32 42 -13-14-16 000 64 23 16 -15.7 -24.0 29.04 7 7 17 202 000 38 32 40 -13-14-15 000 65 23 17 -15.1 -24.6 29.06 4 18 50 234 005 39 31 40 -13-14-16 000 66 23 18 -14.8 -22.4 29.06 8 18 68 252 -004 43 30 36 -13-14-15 000 67 23 19 -13.3 -20.9 29.07 11 27 101 286 -001 49 30 37 -13-14-15 000 68 23 20 -14.5 -20.3 29.08 6 6 49 234 -010 59 30 36 -13-14-15 000 69 23 21 -13.7 -20.9 29.08 6 9 19 204 025 44 28 36 -12-13-14 000 70 23 22 -13.6 -19.5 29.09 10 15 282 107 002 62 43 50 -12-13-14 000 71 23 23 -12.5 -17.6 29.10 10 12 12 197 057 67 39 48 -12-12-13 000 72 24 00 -11.9 -20.2 29.12 2 9 345 170 -055 47 35 51 -12-13-13 000 73 24 01 -10.1 -18.6 29.12 25 36 121 305 010 45 36 39 -10-11-12 000 74 24 02 -10.3 -18.6 29.14 20 33 125 310 013 47 38 37 -10-11-13 000 75 24 03 -10.6 -19.6 29.15 23 35 114 298 034 42 28 40 -10-11-13 000 76 24 04 -11.0 -19.6 29.16 24 33 102 286 028 45 30 33 -11-12-13 000 77 24 05 -10.3 -20.3 29.15 25 38 106 290 -025 37 36 33 -11-12-13 000 78 24 06 -10.9 -19.4 29.16 24 41 119 304 001 45 30 30 -10-11-12 000 79 24 07 -10.9 -20.2 29.18 30 41 115 300 -015 42 32 27 -10-11-12 000 80 24 08 -10.8 -19.5 29.17 38 46 126 310 006 45 23 26 -10-10-11 000 81 24 09 -10.6 -19.3 29.20 19 37 149 334 013 44 27 28 -9-10-12 000 82 24 10 -10.7 -21.1 29.21 34 42 120 305 025 36 24 27 -10-10-11 000 83 24 11 -11.0 -20.7 29.23 31 40 110 295 007 39 26 28 -10-10-11 000 84 24 12 -11.1 -19.9 29.23 21 28 121 305 006 43 21 29 -9-10-11 000 85 24 13 -11.7 -19.9 29.23 15 34 138 322 010 46 20 27 -9-10-11 000 86 24 14 -11.5 -20.6 29.23 18 37 129 314 -026 42 19 22 -10-10-11 000 87 24 15 -11.7 -20.0 29.21 14 34 141 325 -048 45 21 23 -10-11-12 000 88 24 16 -13.0 -19.0 29.21 6 26 117 302 -011 54 30 31 -11-12-13 000 89 24 17 -11.5 -19.6 29.20 15 33 137 322 -007 46 25 30 -10-11-12 000 90 24 18 -11.6 -19.3 29.19 13 24 97 282 -007 48 30 31 -11-11-13 000 91 24 19 -11.1 -19.2 29.18 19 31 106 290 -014 47 35 25 -10-11-13 000 92 24 20 -10.7 -18.4 29.18 18 25 103 287 002 50 32 25 -9-11-12 000 93 24 21 -10.6 -18.1 29.18 11 20 92 276 -002 49 31 25 -9-11-12 000 94 24 22 -10.7 -18.3 29.18 4 12 35 220 -001 41 37 25 -9-11-13 000 95 24 23 -10.5 -17.9 29.18 4 10 346 170 -003 40 36 29 -9-11-12 000 96 25 00 -9.9 -17.6 29.17 1 7 273 98 -003 53 32 26 -10-11-12 000 97 25 01 -9.6 -18.3 29.17 2 3 34 219 -002 47 37 26 -9-11-12 000 98 25 02 -10.1 -15.1 29.17 7 8 220 45 001 64 31 27 -10-11-12 000 99 25 03 -10.3 -15.8 29.16 5 6 78 263 003 55 38 27 -9-11-12 000 100 25 04 -9.6 -20.5 29.16 2 2 39 223 000 38 33 28 -9-11-12 000 101 25 05 -10.6 -17.3 29.15 1 5 189 13 002 60 34 27 -10-11-12 000 102 25 06 -11.1 -17.5 29.15 1 4 81 265 002 61 33 26 -9-11-12 000 103 25 07 -11.1 -20.1 29.14 2 5 49 234 000 48 40 25 -10-11-12 000 104 25 08 -11.5 -20.5 29.14 1 7 100 285 000 48 37 24 -10-11-12 000 105 25 09 -12.0 -19.8 29.14 2 8 172 356 001 54 43 23 -10-11-12 000 106 25 10 -13.5 -18.9 29.14 6 11 178 2 002 61 42 24 -10-11-11 000 107 25 11 -12.9 -18.1 29.14 12 15 189 14 001 65 41 22 -10-11-12 000 108 25 12 -12.7 -18.2 29.14 14 21 191 15 001 64 35 23 -10-11-12 000 109 25 13 -12.7 -18.5 29.13 15 22 192 16 000 63 32 24 -10-11-12 000 110 25 14 -12.7 -18.6 29.13 17 23 192 16 -001 62 33 25 -10-11-12 000 111 25 15 -12.9 -18.5 29.13 15 22 188 13 -001 64 33 25 -10-11-12 000 112 25 16 -13.0 -18.4 29.14 11 21 186 11 000 64 33 30 -10-11-12 000 113 25 17 -13.3 -18.4 29.14 6 17 188 12 001 61 32 31 -10-11-12 000 114 25 18 -12.9 -18.3 29.14 4 15 190 15 001 61 32 31 -10-11-12 000 115 25 19 -12.1 -19.4 29.14 1 8 41 226 -001 57 34 29 -11-11-12 000 116 25 20 -12.4 -18.2 29.14 4 4 24 208 000 54 32 28 -11-11-12 000 117 25 21 -11.6 -18.2 29.15 2 6 25 210 000 56 35 26 -11-11-12 000 118 25 22 -11.0 -17.4 29.15 1 7 127 312 -001 61 42 26 -10-12-12 000 119 25 23 -11.1 -15.4 29.15 3 3 33 217 -003 64 42 27 -10-11-12 000 120 26 00 -10.6 -15.5 29.16 2 2 32 217 -004 61 36 28 -10-11-12 000 * 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.