USAP Shackleton Glacier site lat/lon = (-85.0800,-175.3800) cell lat/lon = (-85.0689,-175.3710) Forecast initialized at 2025-12-22/00 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 22 00 -18.4 -25.4 28.99 2 2 168 353 000 59 59 61 -16-17-18 000 1 22 01 -14.8 -20.8 28.98 2 3 75 259 001 65 60 64 -16-17-18 000 2 22 02 -14.5 -20.5 28.98 1 5 109 294 004 66 58 61 -15-17-18 000 3 22 03 -14.5 -20.1 28.95 1 3 146 331 001 68 61 60 -15-17-18 000 4 22 04 -14.5 -18.9 28.96 2 3 51 236 002 69 53 56 -15-16-17 000 5 22 05 -15.0 -17.9 28.97 2 3 326 151 000 85 52 55 -15-16-17 000 6 22 06 -15.4 -19.1 28.96 4 4 74 258 001 76 57 56 -15-16-17 000 7 22 07 -15.4 -22.2 28.95 3 4 21 205 -001 56 61 55 -15-17-18 000 8 22 08 -15.9 -21.4 28.95 2 3 352 176 -001 69 63 52 -16-17-18 000 9 22 09 -16.2 -22.3 28.95 1 2 87 271 000 66 62 57 -16-17-18 000 10 22 10 -16.9 -23.2 28.96 5 5 66 251 001 56 60 56 -16-17-18 000 11 22 11 -16.9 -24.8 28.96 4 4 50 235 000 50 60 56 -16-17-18 000 12 22 12 -17.2 -24.3 28.96 5 5 52 236 002 52 60 53 -16-17-18 000 13 22 13 -17.3 -24.1 28.95 5 5 60 245 000 52 57 49 -16-17-18 000 14 22 14 -17.1 -24.0 28.97 5 5 55 240 000 51 54 50 -16-17-18 000 15 22 15 -16.2 -24.9 28.98 3 7 48 233 000 50 57 50 -16-17-18 000 16 22 16 -16.4 -25.0 28.97 2 8 78 263 001 51 56 48 -16-17-18 000 17 22 17 -16.3 -25.0 28.97 2 3 57 242 001 50 54 46 -16-17-18 000 18 22 18 -16.0 -24.9 28.96 2 8 62 247 000 49 54 46 -16-17-18 000 19 22 19 -16.0 -23.4 28.97 3 10 85 270 000 49 49 44 -15-17-18 000 20 22 20 -15.4 -23.2 28.97 2 7 72 256 000 47 47 44 -15-16-18 000 21 22 21 -15.0 -21.9 28.98 2 8 77 262 000 48 44 45 -15-16-17 000 22 22 22 -14.6 -21.1 28.98 3 4 56 240 000 47 43 46 -15-16-17 000 23 22 23 -14.3 -20.0 28.97 1 2 61 245 000 53 41 45 -15-16-17 000 24 23 00 -14.2 -19.9 28.97 1 2 166 350 000 64 41 43 -14-16-17 000 25 23 01 -14.0 -18.4 28.97 1 2 117 301 001 74 38 40 -14-15-16 000 26 23 02 -13.9 -18.8 28.97 1 2 78 262 001 63 34 39 -14-15-16 000 27 23 03 -13.9 -20.3 28.97 1 3 126 310 000 57 31 39 -14-15-16 000 28 23 04 -14.1 -20.0 28.96 1 6 217 42 005 65 43 41 -14-15-16 000 29 23 05 -14.6 -19.2 28.96 5 5 13 198 002 68 38 41 -14-15-16 000 30 23 06 -14.7 -20.9 28.96 6 6 48 232 -005 54 39 42 -14-15-16 000 31 23 07 -15.0 -20.9 28.97 6 6 63 248 007 54 60 41 -14-16-17 000 32 23 08 -14.7 -22.5 28.98 10 14 116 300 000 46 53 42 -14-16-17 000 33 23 09 -15.1 -22.5 28.98 7 8 143 328 -007 42 43 47 -14-15-17 000 34 23 10 -14.6 -24.1 28.98 3 7 351 175 -008 46 43 51 -14-15-17 000 35 23 11 -16.3 -23.1 28.99 7 7 61 246 -007 50 42 51 -14-15-16 000 36 23 12 -15.1 -25.4 29.00 3 11 72 257 005 42 37 50 -14-15-16 000 37 23 13 -16.4 -24.0 29.01 7 15 88 273 -001 44 36 46 -14-15-16 000 38 23 14 -15.3 -25.8 29.02 4 10 91 276 000 40 36 48 -14-15-16 000 39 23 15 -15.9 -23.4 29.03 11 19 111 295 000 50 37 47 -14-15-16 000 40 23 16 -15.4 -23.0 29.04 12 20 106 290 012 50 33 44 -14-15-16 000 41 23 17 -15.1 -22.2 29.05 13 20 112 296 004 53 30 43 -13-14-16 000 42 23 18 -14.7 -23.2 29.05 4 9 68 253 -008 43 35 40 -14-15-16 000 43 23 19 -15.3 -21.4 29.04 6 6 347 171 001 55 28 37 -13-14-15 000 44 23 20 -14.2 -21.1 29.05 8 8 30 215 -012 52 32 39 -14-15-16 000 45 23 21 -13.9 -20.5 29.05 4 6 23 207 052 48 29 34 -13-14-15 000 46 23 22 -12.5 -22.7 29.07 0 3 216 41 011 41 22 35 -12-13-14 000 47 23 23 -12.1 -18.5 29.07 12 22 221 46 -006 58 39 28 -11-13-14 000 48 24 00 -12.3 -20.0 29.09 9 11 26 210 018 48 35 46 -12-13-14 000 49 24 01 -12.3 -17.6 29.10 5 9 315 139 015 62 39 59 -12-13-14 000 50 24 02 -11.6 -19.2 29.11 6 24 291 115 046 41 39 55 -11-12-13 000 51 24 03 -10.8 -17.7 29.12 9 27 186 11 -022 51 39 46 -10-12-13 000 52 24 04 -11.0 -17.6 29.13 9 29 220 44 015 52 41 49 -11-12-13 000 53 24 05 -10.9 -17.5 29.14 12 25 202 27 -035 55 42 49 -10-12-13 000 54 24 06 -11.0 -18.9 29.15 10 21 234 59 026 44 41 53 -10-12-13 000 55 24 07 -11.9 -17.5 29.17 8 20 225 49 035 58 40 48 -11-12-13 000 56 24 08 -11.5 -19.1 29.18 12 33 197 21 002 47 37 40 -11-12-13 000 57 24 09 -11.4 -19.4 29.18 20 27 102 287 -044 48 21 32 -9-10-11 000 58 24 10 -11.2 -20.0 29.19 20 38 124 309 -015 43 25 39 -10-11-12 000 59 24 11 -11.8 -20.7 29.20 30 40 111 296 004 43 26 31 -10-11-12 000 60 24 12 -12.1 -20.6 29.20 29 37 124 309 049 46 25 32 -11-11-12 000 61 24 13 -12.0 -21.1 29.18 34 43 122 307 004 43 26 29 -10-11-12 000 62 24 14 -11.8 -21.2 29.18 34 41 121 305 010 41 20 25 -9-10-11 000 63 24 15 -11.7 -20.8 29.19 26 36 113 297 031 43 22 27 -10-11-12 000 64 24 16 -12.5 -20.0 29.19 11 24 92 276 046 49 29 32 -11-12-13 000 65 24 17 -11.9 -20.0 29.18 18 27 105 290 000 47 28 32 -10-12-13 000 66 24 18 -12.5 -19.6 29.19 4 14 62 247 005 47 36 30 -10-12-14 000 67 24 19 -11.8 -20.8 29.20 1 6 146 331 000 47 39 35 -11-12-13 000 68 24 20 -12.3 -17.0 29.20 8 9 206 31 -003 69 38 32 -11-12-13 000 69 24 21 -12.0 -16.8 29.20 7 9 206 31 001 67 40 35 -11-12-13 000 70 24 22 -11.5 -17.3 29.19 10 12 209 34 000 61 37 32 -10-12-13 000 71 24 23 -11.4 -16.1 29.18 0 4 89 273 005 67 39 28 -11-12-13 000 72 25 00 -11.5 -16.0 29.18 4 5 13 198 003 68 37 28 -11-12-13 000 73 25 01 -11.2 -15.9 29.18 1 3 8 193 000 66 33 29 -11-12-13 000 74 25 02 -11.2 -15.9 29.18 3 3 36 220 002 61 37 29 -11-12-13 000 75 25 03 -11.2 -16.4 29.17 1 9 112 297 001 68 44 28 -11-12-13 000 76 25 04 -11.4 -17.2 29.16 4 4 71 256 004 56 38 30 -11-12-13 000 77 25 05 -11.6 -18.1 29.15 3 6 206 30 004 57 35 33 -11-12-13 000 78 25 06 -12.7 -16.6 29.14 5 8 184 9 001 73 33 33 -10-11-12 000 79 25 07 -12.2 -19.1 29.14 0 9 243 68 003 59 39 32 -10-12-13 000 80 25 08 -12.8 -19.9 29.14 0 7 46 230 000 58 39 31 -11-12-13 000 81 25 09 -13.2 -21.4 29.14 3 4 36 220 001 52 43 32 -11-12-13 000 82 25 10 -13.3 -21.7 29.14 2 7 39 223 000 51 46 32 -11-12-13 000 83 25 11 -13.8 -21.3 29.14 1 10 145 330 000 57 45 32 -11-13-13 000 84 25 12 -14.1 -21.3 29.14 3 12 173 357 000 59 44 32 -11-13-13 000 85 25 13 -15.2 -20.9 29.14 5 15 177 2 000 62 43 33 -12-13-13 000 86 25 14 -15.4 -20.5 29.13 7 16 180 5 000 64 41 36 -12-13-13 000 87 25 15 -15.1 -20.6 29.13 5 13 181 6 000 61 42 35 -12-13-13 000 88 25 16 -14.5 -19.5 29.13 9 15 179 4 -004 67 40 34 -12-13-14 000 89 25 17 -14.0 -19.0 29.13 10 18 181 6 -002 68 39 34 -12-13-14 000 90 25 18 -13.5 -18.4 29.13 12 18 183 8 000 69 38 35 -11-13-14 000 91 25 19 -13.3 -18.1 29.12 8 18 182 6 000 69 37 34 -11-13-14 000 92 25 20 -13.1 -17.9 29.13 4 15 171 355 -002 64 38 33 -12-13-14 000 93 25 21 -12.4 -19.3 29.13 0 10 43 228 -002 59 39 31 -12-13-14 000 94 25 22 -12.2 -18.3 29.13 2 5 10 195 -002 56 39 33 -11-12-13 000 95 25 23 -12.0 -17.7 29.13 4 4 5 190 -001 56 37 34 -11-12-13 000 96 26 00 -11.7 -16.6 29.13 4 5 24 209 -002 62 35 33 -11-12-13 000 97 26 01 -11.2 -16.9 29.13 3 4 59 244 -001 54 38 32 -11-12-13 000 98 26 02 -11.1 -17.2 29.13 3 4 152 337 -001 53 36 33 -11-12-13 000 99 26 03 -11.4 -17.3 29.13 3 5 108 293 -001 54 37 32 -11-12-13 000 100 26 04 -11.4 -17.7 29.13 4 6 54 239 000 52 39 31 -11-12-13 000 101 26 05 -11.5 -19.1 29.13 5 5 52 237 000 43 43 31 -11-12-13 000 102 26 06 -10.8 -21.7 29.13 1 2 65 249 003 39 40 34 -11-12-13 000 103 26 07 -11.6 -22.1 29.14 3 3 45 229 000 40 39 34 -11-12-13 000 104 26 08 -12.9 -20.2 29.14 6 6 43 228 000 46 39 36 -11-12-13 000 105 26 09 -13.1 -21.1 29.15 6 6 48 233 000 42 41 36 -11-12-13 000 106 26 10 -13.1 -21.7 29.15 6 6 63 247 000 41 40 36 -12-12-13 000 107 26 11 -13.4 -22.7 29.16 5 5 47 232 000 40 43 38 -12-12-13 000 108 26 12 -13.4 -23.6 29.16 2 6 38 222 000 42 47 38 -12-13-13 000 109 26 13 -14.0 -22.6 29.16 1 9 138 323 001 51 42 37 -12-12-14 000 110 26 14 -14.1 -22.7 29.15 1 9 124 309 000 51 43 33 -12-13-14 000 111 26 15 -14.3 -22.0 29.15 2 9 148 333 001 56 44 32 -12-13-14 000 112 26 16 -14.2 -21.9 29.15 1 7 48 232 000 55 43 33 -12-13-14 000 113 26 17 -14.8 -21.1 29.15 4 4 12 197 -001 56 42 33 -12-13-14 000 114 26 18 -14.3 -20.2 29.16 5 5 20 204 -002 57 38 40 -12-13-13 000 115 26 19 -13.3 -19.9 29.17 3 3 39 223 000 58 36 39 -12-13-14 000 116 26 20 -12.5 -20.1 29.18 2 5 174 358 001 55 37 39 -12-13-14 000 117 26 21 -12.7 -16.7 29.18 5 8 170 355 000 74 40 36 -11-13-14 000 118 26 22 -12.3 -17.6 29.18 2 3 43 227 000 60 44 32 -12-13-14 000 119 26 23 -11.8 -18.0 29.18 2 3 26 211 000 54 40 31 -11-13-13 000 120 27 00 -11.3 -18.4 29.18 1 3 123 308 001 54 38 32 -11-12-13 000 * 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.