USAP Shackleton Glacier site lat/lon = (-85.0800,-175.3800) cell lat/lon = (-85.0689,-175.3710) Forecast initialized at 2026-05-01/00 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 01 00 -40.9 -48.7 28.81 5 5 106 290 -001 57 57 67 -37-38-37 000 1 01 01 -42.6 -47.2 28.78 9 13 78 263 008 80 62 63 -35-36-36 000 2 01 02 -40.1 -45.7 28.75 10 12 40 225 007 67 47 61 -33-32-33 000 3 01 03 -37.1 -42.7 28.75 1 6 104 289 -002 73 54 57 -33-33-32 000 4 01 04 -39.7 -41.0 28.76 6 9 143 327 003 122 66 56 -33-32-32 000 5 01 05 -36.6 -42.3 28.73 5 5 27 211 003 72 60 55 -32-32-31 000 6 01 06 -34.7 -41.9 28.75 5 5 40 225 001 61 54 51 -31-31-31 000 7 01 07 -36.8 -41.9 28.76 5 8 109 293 000 77 48 52 -32-31-30 000 8 01 08 -35.0 -41.9 28.73 5 8 30 215 002 62 51 49 -30-31-31 000 9 01 09 -36.1 -42.6 28.75 8 8 30 215 001 61 46 48 -30-30-30 000 10 01 10 -34.2 -41.7 28.74 6 8 46 230 002 59 49 48 -31-31-30 000 11 01 11 -34.3 -41.4 28.75 5 12 74 259 001 61 49 48 -30-30-30 000 12 01 12 -34.2 -41.6 28.75 3 16 87 271 001 59 49 48 -30-30-30 000 13 01 13 -33.7 -41.4 28.74 5 10 60 244 002 57 46 49 -30-30-30 000 14 01 14 -33.0 -41.1 28.73 5 8 43 228 003 55 45 47 -30-30-29 000 15 01 15 -33.1 -41.2 28.72 6 12 53 237 002 55 46 46 -29-30-30 000 16 01 16 -35.1 -41.5 28.71 8 8 35 220 001 62 44 46 -29-29-29 000 17 01 17 -33.9 -40.4 28.71 5 11 53 238 002 65 46 44 -29-30-29 000 18 01 18 -33.7 -41.2 28.69 7 15 55 240 004 57 46 42 -29-30-29 000 19 01 19 -33.8 -41.1 28.67 7 12 55 239 002 56 46 40 -28-29-29 000 20 01 20 -34.3 -41.7 28.66 8 8 38 222 004 53 45 39 -29-29-28 000 21 01 21 -32.6 -40.6 28.65 6 7 36 220 003 55 43 37 -29-29-28 000 22 01 22 -34.5 -41.6 28.64 8 8 42 226 001 56 42 35 -28-29-28 000 23 01 23 -32.1 -40.4 28.64 6 8 39 224 002 53 41 33 -28-28-28 000 24 02 00 -31.9 -40.6 28.63 6 13 63 247 002 51 43 31 -28-29-28 000 25 02 01 -31.7 -40.3 28.62 6 11 44 229 002 51 43 31 -28-28-27 000 26 02 02 -32.0 -40.5 28.62 3 5 29 214 003 52 41 28 -28-28-26 000 27 02 03 -32.2 -40.9 28.61 4 12 43 228 004 51 41 24 -27-28-27 000 28 02 04 -33.3 -41.4 28.60 8 8 28 212 003 49 40 22 -28-28-26 000 29 02 05 -31.1 -40.4 28.60 5 5 32 217 000 48 40 23 -28-28-26 000 30 02 06 -30.8 -40.5 28.61 6 20 53 237 006 45 36 17 -27-27-27 000 31 02 07 -31.6 -41.2 28.61 8 18 56 241 006 40 34 15 -27-26-27 000 32 02 08 -31.1 -41.0 28.61 9 20 62 247 001 37 30 15 -26-25-25 000 33 02 09 -29.9 -39.9 28.61 9 30 62 247 007 36 32 16 -26-24-24 000 34 02 10 -29.8 -39.2 28.60 12 30 66 250 000 36 32 22 -24-23-23 000 35 02 11 -28.1 -37.4 28.60 11 29 60 245 -006 36 40 35 -24-22-22 000 36 02 12 -27.3 -36.0 28.60 10 32 75 259 -007 39 38 29 -22-21-21 000 37 02 13 -27.5 -35.7 28.60 7 33 118 303 -010 49 38 43 -21-20-20 000 38 02 14 -26.4 -32.6 28.60 9 31 154 338 -018 59 39 44 -21-20-19 000 39 02 15 -25.4 -34.1 28.60 6 31 81 266 -011 48 43 53 -20-20-19 000 40 02 16 -25.0 -33.0 28.60 6 29 88 273 000 52 44 62 -20-19-19 000 41 02 17 -25.0 -32.3 28.60 8 25 43 228 -004 52 44 47 -19-18-18 000 42 02 18 -22.9 -30.7 28.60 6 13 30 215 -014 51 45 52 -20-18-18 000 43 02 19 -21.5 -30.7 28.60 4 21 43 228 -017 48 44 45 -18-18-16 000 44 02 20 -22.0 -30.0 28.59 3 24 60 245 -051 55 41 42 -17-17-16 000 45 02 21 -24.0 -28.6 28.59 7 13 182 7 -005 75 41 35 -16-16-15 000 46 02 22 -18.2 -24.8 28.60 23 28 207 32 009 60 37 53 -13-14-14 000 47 02 23 -16.0 -23.4 28.57 25 25 236 61 -076 54 33 51 -10-12-13 000 48 03 00 -17.6 -23.9 28.62 29 34 226 51 009 62 36 47 -13-12-13 000 49 03 01 -19.4 -25.4 28.65 4 5 334 159 -027 67 60 54 -15-17-14 000 50 03 02 -14.7 -22.7 28.61 19 45 48 232 -317 49 37 44 -11-11-12 000 51 03 03 -13.8 -22.8 28.65 28 41 90 274 -155 45 24 33 -11-11-12 000 52 03 04 -14.8 -21.4 28.68 23 35 128 312 287 58 38 45 -10-12-13 000 53 03 05 -16.9 -24.5 28.72 26 31 200 25 000 53 42 68 -15-15-16 000 54 03 06 -17.3 -23.9 28.69 18 26 205 30 000 59 37 45 -14-14-14 000 55 03 07 -17.3 -23.7 28.69 9 10 210 34 047 54 41 55 -12-14-15 000 56 03 08 -16.2 -24.5 28.70 27 30 207 32 044 48 36 51 -12-13-14 000 57 03 09 -16.3 -23.5 28.68 24 28 208 32 033 55 37 43 -12-14-15 000 58 03 10 -17.0 -24.0 28.68 25 27 205 30 -015 57 38 50 -14-13-14 000 59 03 11 -19.0 -25.6 28.68 1 6 194 19 037 64 33 39 -15-14-15 000 60 03 12 -20.1 -26.7 28.68 11 13 38 222 007 56 36 43 -14-14-14 000 61 03 13 -20.6 -27.9 28.67 7 7 30 214 041 52 34 40 -14-14-14 000 62 03 14 -19.4 -27.7 28.67 9 9 41 226 -010 43 35 39 -15-14-14 000 63 03 15 -18.7 -26.5 28.68 10 20 26 210 007 44 34 41 -14-14-14 000 64 03 16 -17.3 -27.5 28.70 4 11 41 226 005 43 37 40 -16-15-15 000 65 03 17 -20.7 -26.8 28.71 11 13 20 205 -007 58 35 42 -14-15-15 000 66 03 18 -20.6 -27.5 28.73 9 9 78 263 -005 53 36 45 -15-15-15 000 67 03 19 -20.0 -28.2 28.72 9 34 31 215 001 44 41 50 -14-14-15 000 68 03 20 -19.9 -26.8 28.70 13 43 79 263 030 52 40 52 -14-14-15 000 69 03 21 -18.8 -26.5 28.70 14 33 3 187 041 48 32 47 -14-14-14 000 70 03 22 -19.7 -27.2 28.73 6 6 35 219 -072 55 47 46 -15-16-17 000 71 03 23 -19.9 -27.3 28.74 6 9 62 247 057 53 43 59 -16-16-17 000 72 04 00 -22.1 -27.5 28.73 10 13 320 145 005 65 43 44 -16-16-16 000 73 04 01 -19.1 -27.4 28.77 17 35 126 310 150 47 48 50 -15-18-18 000 74 04 02 -17.2 -25.3 28.79 29 36 132 316 -031 50 32 41 -14-15-16 000 75 04 03 -16.2 -24.5 28.79 25 26 126 310 037 48 26 42 -13-14-15 000 76 04 04 -14.4 -24.9 28.81 31 33 87 272 089 36 27 45 -13-15-17 000 77 04 05 -16.4 -25.3 28.88 12 18 54 239 -031 40 31 40 -17-16-17 000 78 04 06 -18.1 -25.7 28.93 13 14 266 91 -192 50 35 44 -14-16-17 000 79 04 07 -18.3 -25.2 28.99 7 7 270 95 -067 51 37 46 -15-16-17 000 80 04 08 -20.0 -25.5 29.05 5 8 195 19 -039 67 49 61 -16-17-18 000 81 04 09 -20.2 -26.4 29.08 8 20 357 182 -001 57 45 74 -17-17-18 000 82 04 10 -21.2 -27.8 29.12 9 10 25 210 013 54 40 76 -18-18-19 000 83 04 11 -23.6 -28.4 29.15 8 15 164 348 -010 71 59 85 -18-18-20 000 84 04 12 -23.6 -29.4 29.17 9 22 119 303 000 62 46 87 -19-20-21 000 85 04 13 -23.3 -30.3 29.17 2 14 49 234 002 62 47 90 -20-20-20 000 86 04 14 -26.1 -32.2 29.17 7 7 0 184 001 63 64 76 -22-22-20 000 87 04 15 -25.5 -31.9 29.16 6 9 78 262 008 62 53 70 -22-21-20 000 88 04 16 -24.6 -30.8 29.16 5 9 63 247 007 67 54 63 -22-21-20 000 89 04 17 -26.2 -31.9 29.16 7 19 119 304 002 66 54 54 -20-21-20 000 90 04 18 -23.8 -31.3 29.16 5 16 65 249 -001 58 51 51 -20-21-20 000 91 04 19 -23.7 -31.4 29.16 4 17 41 226 001 57 50 50 -20-21-20 000 92 04 20 -25.3 -32.2 29.15 1 14 14 198 000 62 50 46 -20-21-20 000 93 04 21 -25.9 -32.3 29.15 5 5 349 174 -005 65 47 43 -20-20-21 000 94 04 22 -26.1 -32.9 29.14 6 6 358 183 003 62 44 43 -21-20-20 000 95 04 23 -24.9 -34.8 29.13 0 7 188 12 000 45 46 46 -21-20-21 000 96 05 00 -28.7 -33.0 29.13 12 25 182 6 009 76 47 46 -20-21-22 000 97 05 01 -26.5 -32.7 29.13 1 16 25 210 -007 66 47 48 -21-21-22 000 98 05 02 -27.8 -32.5 29.13 1 18 153 337 000 78 50 50 -22-22-22 000 99 05 03 -28.3 -32.3 29.13 0 14 26 211 -002 83 47 49 -22-22-22 000 100 05 04 -30.2 -33.8 29.12 7 14 166 350 -006 87 50 52 -23-22-22 000 101 05 05 -30.7 -34.6 29.11 13 25 174 359 000 85 54 50 -22-23-23 000 102 05 06 -28.3 -33.9 29.09 17 28 178 2 -001 71 48 55 -22-22-23 000 103 05 07 -29.0 -34.2 29.08 15 28 176 1 001 74 50 58 -23-23-23 000 104 05 08 -29.8 -34.5 29.06 14 29 176 0 000 79 52 55 -23-24-23 000 105 05 09 -28.5 -34.4 29.05 20 31 179 4 000 69 48 54 -23-23-24 000 106 05 10 -28.7 -34.6 29.03 19 31 179 3 000 69 49 56 -23-23-24 000 107 05 11 -28.6 -34.6 29.01 20 32 179 3 001 68 49 56 -24-24-24 000 108 05 12 -28.2 -34.3 29.00 21 32 180 5 001 67 49 55 -24-24-24 000 109 05 13 -28.5 -34.5 28.98 19 32 179 4 000 69 50 53 -24-24-24 000 110 05 14 -28.9 -34.7 28.96 18 32 178 3 000 70 51 54 -25-25-25 000 111 05 15 -29.7 -35.0 28.95 14 31 177 2 -001 75 52 54 -25-25-25 000 112 05 16 -30.5 -35.4 28.94 11 30 175 0 -001 76 51 56 -25-25-25 000 113 05 17 -31.6 -36.1 28.92 9 28 176 0 000 77 51 55 -25-25-25 000 114 05 18 -30.3 -35.1 28.91 4 21 173 358 001 80 56 55 -25-25-24 000 115 05 19 -30.3 -35.3 28.90 4 21 170 355 000 78 55 57 -25-25-25 000 116 05 20 -30.3 -35.4 28.89 4 21 172 357 000 76 54 57 -25-25-25 000 117 05 21 -32.3 -36.7 28.88 9 24 172 357 000 78 52 57 -25-25-25 000 118 05 22 -32.4 -36.9 28.88 10 29 175 0 000 77 50 56 -25-25-25 000 119 05 23 -32.5 -36.8 28.87 9 27 174 359 000 80 53 57 -25-25-25 000 120 06 00 -31.0 -35.7 28.86 5 20 169 354 000 81 57 57 -25-26-25 000 * 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.