Byrd Surface Camp (NBY) site lat/lon = (-80.0182,-119.5864) cell lat/lon = (-80.0315,-119.6607) Forecast initialized at 2025-12-21/00 UTC MPAS cell scale: 4.2 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 -18.1 -21.8 28.94 6 7 257 138 001 89 95 91 -19-21-22 000 1 21 01 -18.5 -21.4 28.95 5 7 267 147 000 92 96 92 -20-21-22 000 2 21 02 -18.7 -21.4 28.94 4 7 281 162 000 94 99 89 -20-21-22 000 3 21 03 -19.3 -21.7 28.95 4 7 298 179 000 96100 85 -19-21-22 000 4 21 04 -20.2 -22.2 28.95 5 8 306 186 000 103106 88 -19-21-22 000 5 21 05 -21.2 -22.5 28.94 5 8 310 190 000 113112 88 -20-21-22 000 6 21 06 -22.2 -23.0 28.95 5 8 307 188 000 123114 92 -20-21-22 000 7 21 07 -23.4 -24.1 28.93 5 8 318 198 000 125122 89 -20-22-22 000 8 21 08 -23.3 -23.7 28.94 5 9 312 193 000 125124 91 -21-22-23 000 9 21 09 -21.7 -23.1 28.93 4 7 305 186 -001 110125 89 -21-23-24 001 10 21 10 -20.8 -23.0 28.95 4 6 284 164 -001 101125 92 -22-23-25 001 11 21 11 -22.2 -24.2 28.91 5 8 6 246 000 104107109 -22-23-23 001 12 21 12 -22.5 -24.2 28.93 6 7 5 245 000 109102124 -21-22-23 000 13 21 13 -22.2 -24.1 28.91 6 9 352 233 000 106110122 -22-22-23 002 14 21 14 -21.8 -24.1 28.92 6 11 339 219 000 101110122 -21-22-23 000 15 21 15 -21.1 -23.6 28.92 6 7 318 198 000 98104123 -21-22-24 000 16 21 16 -20.2 -22.8 28.92 4 6 288 168 000 96103122 -21-22-24 000 17 21 17 -19.8 -22.5 28.92 5 6 282 162 -001 95113123 -21-22-24 000 18 21 18 -19.5 -22.4 28.92 4 6 265 146 000 93114119 -21-22-24 001 19 21 19 -19.3 -22.7 28.91 4 6 246 126 000 88108118 -21-22-24 000 20 21 20 -19.0 -22.4 28.91 5 5 245 126 000 88107123 -20-22-23 001 21 21 21 -19.1 -22.9 28.91 6 6 251 131 000 84102122 -20-22-23 002 22 21 22 -19.2 -23.1 28.91 5 6 252 133 000 84101119 -20-22-23 000 23 21 23 -19.1 -23.0 28.90 5 7 254 135 -001 83101120 -20-22-23 000 24 22 00 -18.9 -22.7 28.90 5 8 255 135 -001 84101114 -20-22-23 001 25 22 01 -19.0 -23.1 28.90 4 9 241 121 000 82 90120 -20-21-23 000 26 22 02 -18.9 -21.7 28.91 7 8 224 104 000 93110123 -20-22-23 004 27 22 03 -19.8 -22.7 28.91 7 10 228 109 000 92 93118 -21-22-23 002 28 22 04 -20.6 -23.0 28.91 5 11 219 99 000 98101120 -21-22-23 000 29 22 05 -21.3 -23.3 28.90 4 11 238 119 000 103105118 -21-22-24 001 30 22 06 -22.4 -23.7 28.90 4 11 255 135 000 113 94113 -21-22-23 000 31 22 07 -23.5 -24.5 28.90 5 9 279 159 000 119 99117 -21-22-24 000 32 22 08 -23.7 -24.9 28.89 5 7 278 159 000 117107115 -21-22-24 000 33 22 09 -24.1 -25.0 28.88 5 6 299 179 000 121104116 -21-22-24 000 34 22 10 -24.7 -25.5 28.88 6 6 314 194 000 126104113 -21-22-24 000 35 22 11 -24.4 -25.0 28.88 5 6 320 200 000 126104113 -21-22-24 001 36 22 12 -24.1 -25.2 28.88 4 5 325 205 000 119105114 -21-22-24 001 37 22 13 -23.5 -25.0 28.87 4 4 337 217 000 111107115 -21-22-24 001 38 22 14 -23.0 -24.8 28.87 4 4 349 229 000 107112118 -21-22-24 000 39 22 15 -22.2 -24.3 28.86 4 5 353 234 000 103111119 -21-22-24 000 40 22 16 -21.2 -23.1 28.85 5 6 348 229 000 105106116 -21-23-23 000 41 22 17 -20.6 -22.5 28.84 5 7 352 232 000 103104116 -21-22-23 000 42 22 18 -20.0 -22.3 28.84 6 7 354 235 000 99101117 -21-22-23 000 43 22 19 -19.7 -22.4 28.83 7 7 354 235 000 94102116 -21-22-23 000 44 22 20 -19.4 -22.4 28.83 7 8 354 234 000 91113112 -21-22-23 000 45 22 21 -19.1 -22.2 28.82 7 8 353 234 000 91111108 -20-22-23 000 46 22 22 -18.9 -22.0 28.83 7 8 356 236 000 90112102 -20-22-23 000 47 22 23 -18.8 -21.9 28.83 7 8 358 239 000 89111 95 -20-21-23 000 48 23 00 -18.7 -21.9 28.82 7 9 0 240 000 89110 90 -20-21-22 000 49 23 01 -18.7 -21.9 28.82 7 9 3 244 000 89108 86 -20-21-22 000 50 23 02 -19.0 -22.0 28.81 6 9 9 249 000 90104 86 -20-21-22 000 51 23 03 -19.6 -22.4 28.82 6 9 21 261 000 92100 85 -20-21-21 000 52 23 04 -20.5 -23.0 28.82 6 10 29 270 000 98 93 83 -20-21-21 000 53 23 05 -21.6 -23.8 28.82 7 11 31 271 000 101 81 77 -20-21-21 000 54 23 06 -22.6 -24.6 28.81 7 10 29 270 000 106 70 72 -20-20-21 000 55 23 07 -23.5 -24.8 28.80 7 9 33 273 000 117 67 92 -20-20-20 000 56 23 08 -23.7 -24.5 28.81 7 10 39 279 000 123 90 99 -19-19-19 000 57 23 09 -22.5 -24.3 28.81 5 9 44 285 001 107 97 95 -18-18-18 001 58 23 10 -22.6 -24.1 28.81 6 13 51 291 001 111 90 99 -16-17-18 000 59 23 11 -19.7 -21.5 28.80 8 23 36 276 000 104102 98 -16-16-17 002 60 23 12 -17.9 -19.3 28.81 10 20 33 273 002 106 97104 -15-16-17 002 61 23 13 -16.7 -18.6 28.81 12 22 37 278 001 99 93 96 -15-16-17 002 62 23 14 -15.7 -18.3 28.82 14 25 37 277 003 92 93 95 -16-16-17 001 63 23 15 -15.2 -18.2 28.83 16 26 32 272 002 88 90100 -16-17-18 000 64 23 16 -14.4 -17.5 28.83 15 25 32 272 001 86 97 95 -15-17-18 001 65 23 17 -13.7 -16.9 28.84 18 27 31 271 002 84 96 94 -15-16-18 004 66 23 18 -13.6 -17.3 28.85 19 28 32 272 002 80 91 84 -15-16-17 000 67 23 19 -13.3 -17.0 28.85 18 27 29 270 004 80 91 88 -14-16-17 000 68 23 20 -13.0 -16.6 28.86 19 27 34 275 005 80 91 87 -14-15-17 000 69 23 21 -12.8 -16.5 28.88 19 28 34 274 005 79 90 84 -14-15-17 000 70 23 22 -12.5 -16.3 28.88 19 28 34 274 004 78 89 84 -13-15-16 000 71 23 23 -12.3 -16.1 28.89 18 28 35 275 004 78 87 86 -13-15-16 000 72 24 00 -12.1 -15.9 28.90 16 27 40 281 005 78 84 82 -13-14-16 000 73 24 01 -12.1 -15.7 28.90 16 27 49 289 006 79 84 86 -13-14-15 000 74 24 02 -11.7 -14.4 28.90 16 26 53 294 008 87 94 86 -12-14-15 002 75 24 03 -11.5 -14.7 28.90 17 27 47 288 006 83 88 85 -12-13-15 001 76 24 04 -11.7 -14.5 28.91 16 25 43 283 003 86 95 95 -12-14-15 002 77 24 05 -12.6 -15.3 28.91 14 26 43 283 007 87 88 84 -12-14-15 002 78 24 06 -13.4 -15.9 28.92 13 26 40 280 003 90 92 90 -13-14-15 001 79 24 07 -14.5 -16.6 28.94 13 27 38 279 006 95 90 87 -13-15-16 000 80 24 08 -15.1 -18.1 28.95 16 29 39 280 005 87 85 88 -14-15-16 000 81 24 09 -15.6 -18.5 28.96 15 29 38 279 007 89 83 85 -14-15-17 000 82 24 10 -16.3 -18.4 28.96 13 28 40 281 004 97 87 81 -15-16-17 000 83 24 11 -16.3 -18.4 28.97 13 26 40 280 002 97 91 79 -15-16-17 000 84 24 12 -15.7 -18.9 28.97 16 29 38 278 003 86 87 78 -15-16-17 000 85 24 13 -15.8 -18.9 28.97 15 29 38 279 000 88 89 77 -16-17-17 000 86 24 14 -15.8 -18.8 28.98 14 27 42 282 -002 88 89 75 -16-17-17 000 87 24 15 -15.5 -18.6 28.98 15 25 41 281 -001 86 86 78 -16-17-17 000 88 24 16 -15.1 -18.4 28.98 15 24 38 278 000 84 87 77 -16-17-17 000 89 24 17 -14.6 -18.0 28.98 15 23 37 277 000 83 92 77 -16-17-17 000 90 24 18 -14.2 -17.7 28.98 15 22 37 278 000 83 94 77 -15-17-17 000 91 24 19 -13.8 -17.3 28.98 14 21 38 278 000 82 95 82 -15-16-17 000 92 24 20 -13.5 -17.1 28.98 14 21 37 277 001 82 94 81 -15-16-17 000 93 24 21 -13.3 -16.9 28.98 14 20 35 276 001 80 93 80 -14-16-17 000 94 24 22 -13.1 -16.7 28.98 13 19 36 277 001 80 92 81 -14-16-17 000 95 24 23 -12.9 -16.5 28.98 12 18 37 277 002 80 92 81 -14-15-17 000 96 25 00 -12.8 -16.3 28.98 12 17 36 276 001 81 91 82 -14-15-17 000 97 25 01 -12.8 -16.2 28.97 10 17 34 274 001 82 91 83 -14-15-17 000 98 25 02 -13.2 -16.3 28.97 9 16 38 278 001 85 91 81 -14-15-16 000 99 25 03 -13.8 -16.6 28.96 8 16 43 283 001 87 89 80 -14-15-16 000 100 25 04 -14.6 -17.2 28.96 8 16 45 286 001 89 90 84 -14-15-16 000 101 25 05 -15.6 -17.8 28.96 9 16 45 285 001 95 91 87 -14-15-17 000 102 25 06 -16.5 -18.3 28.96 9 15 41 282 001 101 92 89 -14-15-17 000 103 25 07 -17.3 -18.5 28.97 9 14 39 280 000 108 94 89 -14-15-17 000 104 25 08 -18.0 -18.8 28.97 9 15 39 279 000 115 93 90 -14-15-17 000 105 25 09 -18.8 -19.3 28.97 9 15 40 281 000 119 91 88 -14-15-17 000 106 25 10 -19.5 -19.9 28.98 9 17 39 280 000 120 92 84 -14-15-17 000 107 25 11 -19.7 -20.2 28.98 9 18 38 278 000 121 92 81 -14-16-17 000 108 25 12 -19.3 -19.9 28.99 9 19 34 274 -001 118 94 78 -14-16-17 000 109 25 13 -18.7 -19.8 28.99 8 17 34 274 000 112 90 82 -15-16-17 000 110 25 14 -17.9 -19.3 28.99 10 18 33 274 001 107 91 84 -15-16-17 000 111 25 15 -16.8 -18.9 28.99 9 15 31 271 001 97 90 90 -15-16-17 000 112 25 16 -15.9 -18.3 28.99 9 14 30 270 001 94 90 90 -15-16-17 000 113 25 17 -15.3 -17.8 28.99 9 14 36 277 001 93 88 93 -15-16-17 000 114 25 18 -14.6 -17.0 28.99 9 14 40 281 002 93 92 94 -15-15-17 000 115 25 19 -13.9 -16.5 28.99 10 14 44 285 001 91 86 89 -15-15-16 000 116 25 20 -13.4 -16.2 28.99 10 15 42 282 001 87 82 89 -14-15-16 000 117 25 21 -13.0 -16.0 29.00 10 16 39 280 002 86 88 88 -14-15-16 000 118 25 22 -12.6 -15.7 29.00 10 16 38 278 001 84 96 85 -14-15-16 000 119 25 23 -12.3 -15.5 29.00 10 15 38 278 002 84 94 83 -13-15-16 000 120 26 00 -12.3 -15.4 29.00 9 14 41 281 002 84 92 81 -13-15-15 000 * 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.