USAP Shackleton Glacier site lat/lon = (-85.0800,-175.3800) cell lat/lon = (-85.0689,-175.3710) Forecast initialized at 2026-04-30/00 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 30 00 -28.2 -32.6 28.29 5 5 95 280 -003 86 86 91 -25-26-27 000 1 30 01 -27.0 -32.0 28.34 11 17 143 327 -034 77 49 55 -25-25-26 000 2 30 02 -29.6 -32.6 28.33 7 8 5 190 -018 99 53 64 -25-26-28 000 3 30 03 -29.6 -31.1 28.34 5 8 13 197 -043 116 80 79 -26-27-28 000 4 30 04 -32.0 -32.7 28.38 12 12 207 32 004 135114 88 -30-29-29 000 5 30 05 -30.1 -32.2 28.39 4 13 24 208 014 107 93 82 -30-30-29 000 6 30 06 -33.4 -35.2 28.44 7 9 137 322 -004 118104 86 -30-30-30 000 7 30 07 -33.9 -35.1 28.46 8 10 161 345 009 130125 79 -30-32-30 000 8 30 08 -34.2 -36.0 28.47 7 7 123 308 001 122115 83 -31-31-31 000 9 30 09 -33.2 -35.5 28.53 6 12 97 282 -004 112113 93 -31-32-31 000 10 30 10 -32.0 -34.9 28.55 4 6 59 244 -005 101106 88 -32-32-32 000 11 30 11 -32.6 -34.5 28.58 0 6 78 263 -004 112121 87 -32-33-32 000 12 30 12 -33.3 -34.8 28.61 3 6 40 225 -004 117121 84 -32-33-33 000 13 30 13 -33.6 -35.2 28.64 4 6 29 214 -002 117113 94 -33-33-33 001 14 30 14 -34.1 -35.9 28.69 2 6 75 259 -004 114116 99 -33-33-33 000 15 30 15 -34.4 -36.0 28.71 3 7 99 283 001 116115101 -33-33-33 000 16 30 16 -34.7 -36.4 28.73 3 6 47 232 000 114115 99 -33-33-33 000 17 30 17 -35.5 -38.0 28.74 6 6 32 217 000 104115107 -33-33-34 000 18 30 18 -33.9 -37.4 28.75 3 4 30 215 -001 94109104 -32-33-34 000 19 30 19 -34.7 -38.0 28.77 7 7 31 215 -006 93102 89 -32-33-33 000 20 30 20 -34.7 -39.2 28.78 8 8 28 213 -001 79 82104 -32-32-32 000 21 30 21 -34.2 -39.8 28.79 6 6 32 217 002 71104 91 -32-33-32 000 22 30 22 -34.5 -39.6 28.79 6 7 36 221 002 76 93 73 -32-32-32 000 23 30 23 -34.8 -39.2 28.79 6 6 34 219 004 83 78 69 -31-32-32 000 24 01 00 -34.4 -39.4 28.79 6 6 37 222 001 79 73 70 -32-32-33 000 25 01 01 -34.4 -39.3 28.79 5 5 36 220 000 80 74 70 -31-32-32 000 26 01 02 -34.4 -40.5 28.80 4 6 36 220 000 71 74 75 -31-32-32 000 27 01 03 -34.4 -40.9 28.80 5 6 31 216 000 67 80 82 -31-31-32 000 28 01 04 -34.6 -41.2 28.81 3 8 44 229 000 66 81 80 -31-32-32 000 29 01 05 -34.7 -40.4 28.81 4 8 39 224 000 73 83 71 -31-31-32 000 30 01 06 -34.5 -40.7 28.82 4 9 44 229 000 69 81 69 -31-31-31 000 31 01 07 -34.3 -40.9 28.82 5 9 37 222 000 66 71 67 -31-31-31 000 32 01 08 -33.9 -41.1 28.82 4 10 47 231 001 61 61 60 -31-31-31 000 33 01 09 -34.1 -40.9 28.81 4 12 41 225 002 64 59 60 -31-31-31 000 34 01 10 -34.8 -40.9 28.81 2 12 77 261 002 69 62 58 -31-31-31 000 35 01 11 -35.4 -41.2 28.82 2 13 121 306 001 71 66 56 -31-31-31 000 36 01 12 -35.6 -41.5 28.82 2 9 103 287 001 70 64 53 -31-31-30 000 37 01 13 -35.2 -41.8 28.81 1 11 82 267 000 65 61 50 -31-30-30 000 38 01 14 -35.3 -41.9 28.81 1 9 118 303 001 65 55 46 -31-30-30 000 39 01 15 -35.4 -41.7 28.80 2 9 102 286 001 67 54 45 -30-30-30 000 40 01 16 -35.6 -41.7 28.79 3 10 128 312 002 69 53 44 -30-30-30 000 41 01 17 -36.0 -41.9 28.78 4 11 142 326 002 72 53 42 -30-30-30 000 42 01 18 -36.0 -42.2 28.77 5 16 133 317 002 69 51 40 -30-30-30 000 43 01 19 -34.1 -41.9 28.76 3 12 96 281 002 57 49 39 -29-29-29 000 44 01 20 -34.6 -41.8 28.75 4 12 111 295 003 61 47 37 -29-29-29 000 45 01 21 -34.4 -41.3 28.74 4 14 125 309 002 63 45 35 -29-29-29 000 46 01 22 -33.0 -41.3 28.74 5 19 97 281 004 53 42 33 -29-29-29 000 47 01 23 -32.1 -41.1 28.73 5 11 52 237 002 50 39 31 -29-28-28 000 48 02 00 -32.2 -41.0 28.72 4 16 117 301 000 51 41 31 -28-28-28 000 49 02 01 -31.5 -40.8 28.71 5 17 78 263 000 48 41 31 -28-28-28 000 50 02 02 -31.3 -40.8 28.70 6 16 71 256 000 47 40 29 -28-28-28 000 51 02 03 -31.1 -40.5 28.70 6 23 68 253 000 47 39 27 -28-27-28 000 52 02 04 -31.9 -40.9 28.70 7 18 52 237 000 47 39 24 -28-27-27 000 53 02 05 -31.3 -40.8 28.68 6 19 62 247 000 47 39 21 -27-27-27 000 54 02 06 -31.1 -41.0 28.67 6 17 48 233 000 45 38 20 -27-27-27 000 55 02 07 -31.4 -41.2 28.67 5 20 51 235 000 46 37 18 -27-27-26 000 56 02 08 -31.6 -41.2 28.66 7 19 45 229 002 45 36 18 -27-26-26 000 57 02 09 -30.4 -41.1 28.65 6 17 46 230 004 41 33 16 -27-26-26 000 58 02 10 -30.1 -41.0 28.65 5 16 66 250 002 40 32 14 -26-25-26 000 59 02 11 -29.9 -40.8 28.65 5 17 49 234 002 41 31 13 -25-25-25 000 60 02 12 -30.2 -40.1 28.64 8 27 56 240 001 38 29 12 -25-24-24 000 61 02 13 -27.7 -38.7 28.63 6 18 54 239 002 36 34 11 -24-23-23 000 62 02 14 -27.7 -37.4 28.61 9 17 26 211 002 37 34 10 -23-22-21 000 63 02 15 -26.6 -35.7 28.62 6 6 12 197 000 46 31 11 -23-22-21 000 64 02 16 -26.3 -35.2 28.63 5 5 28 213 -001 48 26 21 -22-21-20 000 65 02 17 -25.5 -36.2 28.64 6 6 42 227 006 36 33 21 -21-22-20 000 66 02 18 -24.4 -34.5 28.65 7 13 58 243 004 39 40 28 -20-21-20 000 67 02 19 -26.6 -35.0 28.67 10 10 26 211 -004 43 35 34 -20-20-20 000 68 02 20 -23.3 -34.6 28.70 5 5 8 192 004 39 33 36 -20-20-20 000 69 02 21 -23.6 -33.6 28.70 7 7 71 256 -001 39 34 46 -20-20-19 000 70 02 22 -21.7 -32.4 28.71 5 19 84 269 -003 41 38 44 -19-20-19 000 71 02 23 -23.6 -32.3 28.74 8 22 73 258 001 45 40 39 -19-19-19 000 72 03 00 -24.3 -33.1 28.75 9 24 59 243 007 42 40 35 -19-19-19 000 73 03 01 -23.1 -32.7 28.76 7 28 95 279 005 43 41 38 -19-19-19 000 74 03 02 -22.5 -31.5 28.77 5 28 94 279 005 49 42 35 -19-19-19 000 75 03 03 -23.2 -32.0 28.78 7 23 66 251 002 48 42 41 -19-18-18 000 76 03 04 -23.7 -31.9 28.78 8 20 55 240 000 48 40 39 -18-18-17 000 77 03 05 -21.6 -30.7 28.79 6 15 46 230 -007 49 36 33 -18-18-17 000 78 03 06 -21.9 -30.5 28.79 7 19 58 242 004 48 38 33 -17-17-17 000 79 03 07 -22.3 -30.1 28.79 9 19 47 231 001 48 41 35 -16-17-17 000 80 03 08 -21.3 -29.5 28.80 2 19 121 305 -001 53 41 35 -16-16-17 000 * 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.