USAP Grounding Zone (ACT) site lat/lon = (-84.3380,-163.5425) cell lat/lon = (-84.3284,-163.5930) Forecast initialized at 2026-01-13/12 UTC MPAS cell scale: 2.4 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 13 12 -10.4 -15.1 29.00 7 9 134 330 000 61 33 31 -7 -6 -6 000 1 13 13 -12.4 -15.6 29.01 7 11 157 354 000 80 38 34 -7 -7 -7 000 2 13 14 -13.0 -15.8 29.00 8 17 167 4 001 86 38 34 -7 -7 -7 000 3 13 15 -12.8 -15.7 29.02 9 20 162 359 002 86 41 35 -8 -8 -7 000 4 13 16 -12.0 -15.4 29.02 9 26 143 339 003 80 41 38 -8 -8 -7 000 5 13 17 -11.8 -14.8 29.02 6 21 145 341 000 82 40 41 -7 -8 -8 000 6 13 18 -11.6 -14.4 29.01 6 12 165 1 003 84 38 30 -6 -7 -8 000 7 13 19 -11.2 -14.1 28.99 7 15 181 17 001 85 37 40 -6 -8 -8 000 8 13 20 -10.9 -13.7 29.00 8 17 166 3 -002 86 41 32 -6 -8 -9 000 9 13 21 -9.9 -13.2 29.01 7 17 155 351 000 79 28 30 -7 -7 -8 000 10 13 22 -9.8 -12.6 28.99 6 14 191 27 002 84 29 33 -6 -6 -7 000 11 13 23 -9.2 -11.9 28.99 6 11 206 42 004 84 27 33 -6 -6 -7 000 12 14 00 -8.7 -11.8 28.96 8 19 200 37 000 81 25 32 -5 -6 -7 000 13 14 01 -7.8 -12.2 28.96 9 14 203 40 001 69 34 30 -5 -6 -6 000 14 14 02 -8.1 -11.5 28.96 8 17 209 45 002 77 28 30 -5 -5 -6 000 15 14 03 -7.9 -12.1 28.95 9 17 210 47 000 70 26 30 -4 -5 -6 000 16 14 04 -8.3 -11.9 28.95 8 15 207 44 000 75 26 37 -3 -5 -6 000 17 14 05 -9.0 -11.7 28.95 8 12 187 23 003 84 31 32 -4 -5 -6 000 18 14 06 -9.4 -12.4 28.94 7 14 190 26 002 81 39 41 -4 -5 -6 000 19 14 07 -9.7 -13.1 28.94 8 16 198 35 001 77 42 37 -5 -5 -6 000 20 14 08 -10.2 -13.1 28.94 9 15 191 28 001 83 48 36 -5 -6 -7 000 21 14 09 -10.5 -13.4 28.93 8 19 195 31 002 82 44 40 -5 -6 -6 000 22 14 10 -11.0 -14.1 28.93 9 21 182 18 000 82 39 34 -6 -6 -6 000 23 14 11 -10.7 -14.2 28.93 9 16 190 27 001 78 50 41 -5 -6 -6 000 24 14 12 -11.0 -14.7 28.92 8 15 173 9 002 74 50 41 -5 -7 -7 000 25 14 13 -11.9 -14.9 28.93 8 19 192 28 003 83 53 34 -6 -7 -7 000 26 14 14 -11.6 -14.8 28.92 7 20 178 14 000 80 66 64 -7 -7 -7 000 27 14 15 -11.5 -14.4 28.92 8 20 185 21 -001 83 69 69 -7 -7 -7 000 28 14 16 -11.1 -13.8 28.92 8 18 185 21 000 85 85 49 -7 -7 -7 000 29 14 17 -10.4 -12.6 28.92 6 11 168 4 000 90 97 94 -7 -7 -7 000 30 14 18 -9.5 -11.3 28.92 3 7 98 294 -001 92104 86 -7 -8 -7 000 31 14 19 -8.2 -9.6 28.93 5 16 88 284 -001 97103100 -7 -8 -7 001 32 14 20 -7.4 -8.9 28.93 4 17 118 314 000 94100101 -7 -8 -7 000 33 14 21 -5.6 -7.6 28.93 9 16 125 322 000 87 93100 -6 -7 -7 000 34 14 22 -5.6 -7.8 28.93 9 16 129 326 001 86 94 97 -6 -7 -7 000 35 14 23 -5.6 -7.7 28.93 7 16 130 326 001 87 93 99 -6 -6 -7 000 36 15 00 -5.4 -7.7 28.93 7 16 131 327 000 85 87 98 -6 -6 -7 000 37 15 01 -5.4 -7.8 28.93 7 16 126 323 000 85 83 97 -6 -6 -6 000 38 15 02 -5.5 -7.7 28.93 6 14 114 311 000 86 86 97 -5 -5 -6 000 39 15 03 -5.9 -7.6 28.93 3 13 138 335 001 88 77 88 -5 -5 -6 000 40 15 04 -6.3 -7.9 28.93 5 6 199 35 001 91 81 88 -6 -6 -6 000 41 15 05 -6.9 -8.6 28.94 5 9 187 23 001 92 85 92 -5 -6 -6 000 42 15 06 -7.3 -8.8 28.94 6 10 173 9 000 93 88 91 -5 -5 -6 000 43 15 07 -7.9 -9.0 28.94 6 9 169 5 000 98 90 96 -5 -5 -6 000 44 15 08 -8.6 -9.2 28.94 5 8 166 2 000 105 91 95 -5 -5 -6 000 45 15 09 -8.8 -9.1 28.95 5 9 156 353 000 108 95 98 -5 -5 -6 000 46 15 10 -9.4 -9.8 28.95 4 8 176 13 000 109 93 96 -5 -5 -6 000 47 15 11 -10.1 -10.5 28.96 4 8 172 8 000 109 94 99 -6 -5 -6 000 48 15 12 -10.5 -11.0 28.96 5 9 157 354 000 108 99101 -5 -5 -6 000 49 15 13 -10.6 -11.1 28.96 3 7 120 316 001 110 96 93 -5 -5 -6 000 50 15 14 -9.0 -9.2 28.97 6 7 155 352 000 108101 93 -6 -6 -6 001 51 15 15 -8.4 -9.2 28.97 5 7 131 328 000 101 94 94 -6 -6 -6 000 52 15 16 -8.9 -9.0 28.98 5 5 133 329 000 109 94 96 -6 -6 -6 000 53 15 17 -8.7 -8.7 28.99 5 7 134 330 000 108 95 99 -6 -6 -6 000 54 15 18 -8.4 -8.4 28.99 6 10 123 320 000 108 99107 -6 -6 -6 000 55 15 19 -7.7 -7.8 28.99 5 9 133 329 000 106 98103 -6 -6 -6 000 56 15 20 -6.7 -7.8 28.98 2 5 134 330 000 97 93 84 -5 -5 -6 000 57 15 21 -6.6 -7.7 28.99 4 6 175 12 000 97 72 76 -6 -5 -6 000 58 15 22 -6.4 -7.8 28.99 4 5 214 50 000 94 68 71 -5 -6 -6 000 59 15 23 -6.0 -8.3 28.99 5 7 210 47 001 86 65 67 -5 -6 -6 000 60 16 00 -5.8 -8.6 28.98 5 11 209 45 000 81 63 65 -5 -5 -6 000 61 16 01 -5.8 -8.2 28.97 6 11 229 65 000 84 55 53 -4 -5 -5 000 62 16 02 -5.6 -8.0 28.97 6 12 241 77 002 84 46 54 -3 -4 -5 000 63 16 03 -5.1 -7.7 28.96 6 13 239 75 002 81 36 68 -2 -4 -5 000 64 16 04 -4.6 -6.6 28.96 2 5 106 303 001 88 60 82 -4 -5 -6 000 65 16 05 -5.9 -7.7 28.95 3 6 67 263 -004 89 70 79 -5 -5 -5 000 66 16 06 -7.1 -8.2 28.95 3 6 92 288 -001 97 72 84 -6 -5 -6 000 67 16 07 -7.8 -8.9 28.95 3 7 101 298 -002 98 85 79 -6 -6 -6 000 68 16 08 -9.0 -9.3 28.95 6 7 115 311 000 108 88 74 -7 -6 -6 000 69 16 09 -8.5 -8.6 28.95 6 7 105 301 -001 108 90 72 -6 -6 -6 000 70 16 10 -8.4 -8.5 28.95 5 6 122 318 -002 108 90 73 -7 -6 -6 000 71 16 11 -8.5 -8.6 28.95 5 6 115 312 -002 108 89 71 -8 -6 -6 000 72 16 12 -8.6 -8.7 28.96 5 6 125 322 000 108 88 69 -8 -6 -6 000 73 16 13 -8.6 -8.7 28.96 5 6 110 306 -001 108 86 66 -9 -6 -5 000 74 16 14 -10.5 -10.6 28.96 5 5 120 316 -001 110 79 65 -7 -6 -5 000 75 16 15 -11.3 -11.4 28.95 4 5 104 300 000 111 80 65 -7 -6 -5 000 76 16 16 -10.2 -10.3 28.95 4 5 104 301 000 110 73 66 -8 -6 -5 000 77 16 17 -10.3 -10.4 28.95 4 5 89 286 000 110 66 66 -9 -6 -5 000 78 16 18 -9.5 -9.6 28.96 4 5 89 285 000 109 62 67 -10 -5 -6 000 79 16 19 -9.0 -9.1 28.96 5 6 91 288 000 109 62 68 -10 -6 -6 000 80 16 20 -8.6 -9.9 28.97 5 5 77 273 000 97 64 70 -9 -6 -6 000 81 16 21 -9.3 -9.9 28.97 5 5 43 240 -001 104 62 68 -8 -6 -6 000 82 16 22 -8.7 -9.2 28.98 5 7 28 224 -001 105 83 70 -9 -6 -6 000 83 16 23 -7.3 -8.8 28.98 4 7 34 230 000 94 84 73 -8 -6 -6 000 84 17 00 -6.8 -8.6 28.99 5 6 38 235 000 92 75 73 -8 -7 -6 000 85 17 01 -6.6 -8.8 28.99 5 6 56 252 -001 88 66 75 -8 -8 -7 000 86 17 02 -6.4 -8.5 29.00 5 7 65 262 000 89 91 85 -8 -9 -7 000 87 17 03 -6.5 -8.4 29.00 6 7 71 267 000 90 89 76 -8 -9 -8 000 88 17 04 -6.5 -8.4 29.00 6 7 80 276 000 90 91 79 -8 -9 -8 000 89 17 05 -6.8 -8.4 29.01 6 8 89 285 -002 92107 81 -8 -9 -8 000 90 17 06 -7.2 -8.7 29.02 7 9 98 295 -002 94107 87 -8 -9 -9 000 91 17 07 -6.8 -8.4 29.02 8 9 87 283 -001 93109 93 -8 -9 -8 000 92 17 08 -7.0 -8.6 29.03 8 9 88 284 000 93109 69 -8 -9 -8 000 93 17 09 -9.0 -9.9 29.03 7 11 93 290 000 101103 54 -8 -8 -9 000 94 17 10 -9.8 -10.2 29.04 7 12 92 288 000 108 82 56 -8 -8 -9 000 95 17 11 -10.2 -10.3 29.04 6 11 104 301 002 110 50 98 -8 -7 -8 000 96 17 12 -7.9 -8.9 29.04 8 15 76 272 -005 99 63 64 -7 -7 -8 000 97 17 13 -5.6 -7.2 29.04 7 15 91 288 001 92 94 81 -5 -7 -8 000 98 17 14 -4.8 -7.2 29.03 9 14 87 283 000 84 95 75 -5 -7 -8 000 99 17 15 -4.8 -6.5 29.03 6 12 82 279 000 90 95 79 -5 -7 -8 000 100 17 16 -4.5 -6.6 29.03 7 9 77 273 000 86 98 77 -6 -7 -9 000 101 17 17 -4.4 -6.4 29.02 5 7 85 281 -001 87102 85 -5 -7 -8 000 102 17 18 -4.4 -6.2 29.02 6 6 104 300 000 89101 77 -5 -7 -8 000 103 17 19 -4.5 -6.6 29.02 5 5 110 307 000 86 91 65 -5 -7 -8 000 104 17 20 -4.9 -7.0 29.01 5 5 99 295 000 87 91 62 -6 -7 -8 000 105 17 21 -5.8 -7.4 29.00 3 5 108 304 000 92 90 68 -6 -7 -8 000 106 17 22 -5.8 -7.4 29.00 3 5 114 310 000 93 90 72 -6 -7 -8 000 107 17 23 -5.7 -7.4 28.99 2 5 119 315 000 92 90 74 -6 -7 -8 000 108 18 00 -5.6 -7.3 28.99 2 6 128 324 -001 91 89 73 -6 -7 -8 000 109 18 01 -5.4 -7.4 28.97 2 6 153 349 000 89 91 70 -6 -7 -8 000 110 18 02 -5.2 -7.3 28.96 3 6 176 13 000 88 90 72 -6 -7 -7 000 111 18 03 -5.2 -7.1 28.94 4 8 178 15 000 89 96 73 -6 -7 -8 000 112 18 04 -5.1 -6.8 28.93 5 8 186 22 -001 90 91 79 -6 -7 -8 000 113 18 05 -5.3 -6.7 28.93 6 10 183 20 001 93 88 84 -6 -7 -7 000 114 18 06 -5.0 -6.4 28.92 7 9 178 14 000 93 79 97 -6 -6 -7 000 115 18 07 -5.2 -6.5 28.91 7 11 175 11 -003 93 85105 -6 -6 -7 001 116 18 08 -4.9 -6.4 28.90 7 11 180 16 -005 92 98109 -6 -5 -6 003 117 18 09 -4.6 -5.7 28.89 6 13 173 9 003 95 98107 -5 -5 -5 005 118 18 10 -3.6 -4.5 28.88 6 14 174 10 -002 95 98107 -4 -4 -5 013 119 18 11 -2.8 -3.4 28.87 3 13 180 17 -002 97102107 -3 -4 -4 001 120 18 12 -1.9 -2.6 28.86 4 12 144 340 -002 96103107 -2 -3 -4 001 * 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.