USAP Grounding Zone (ACT) site lat/lon = (-84.3380,-163.5425) cell lat/lon = (-84.3284,-163.5930) Forecast initialized at 2025-09-28/12 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 28 12 -27.8 -32.2 29.13 5 6 138 334 000 84 47 40 -20-16-14 000 1 28 13 -31.2 -32.6 29.13 6 8 165 2 -002 118 46 42 -19-15-13 000 2 28 14 -32.8 -33.4 29.14 10 14 183 20 006 137 52 33 -21-17-15 000 3 28 15 -32.9 -33.0 29.14 3 5 233 70 000 137 29 30 -16-14-12 000 4 28 16 -33.3 -33.9 29.10 6 8 215 52 001 136 30 28 -17-13-11 000 5 28 17 -31.8 -32.4 29.09 7 16 190 27 -002 134 35 29 -17-13-12 000 6 28 18 -33.4 -34.4 29.07 6 16 224 61 -001 137 36 42 -15-12-11 000 7 28 19 -32.3 -33.1 29.07 5 20 238 75 -002 135 34 34 -12-12-11 000 8 28 20 -28.4 -29.3 29.02 7 23 229 65 000 130 36 32 -11-12-11 000 9 28 21 -22.4 -25.3 29.01 9 29 221 58 003 95 62 57 -12-11-11 000 10 28 22 -17.9 -22.1 29.00 10 36 214 50 003 79 98101 -11-10 -9 000 11 28 23 -13.1 -14.7 28.98 12 37 183 19 002 99103101 -10 -9 -9 008 12 29 00 -8.1 -9.3 28.96 20 33 151 348 -002 97103108 -8 -8 -9 016 13 29 01 -7.7 -9.2 28.97 19 30 143 339 -004 95 96 93 -8 -8 -9 012 14 29 02 -9.3 -11.5 28.98 15 26 125 322 -003 89 68 66 -9 -9 -9 000 15 29 03 -12.2 -12.9 28.99 10 21 115 311 -001 108 91 63 -10-10-10 000 16 29 04 -15.8 -16.4 29.00 11 21 104 300 -001 114 73 62 -12-11-10 000 17 29 05 -18.5 -19.4 29.01 11 20 99 296 -003 114 75 58 -15-11-11 000 18 29 06 -20.7 -21.9 29.02 12 17 100 296 -002 113 78 55 -15-12-11 000 19 29 07 -22.4 -25.5 29.04 11 17 105 301 -004 93 82 56 -17-13-12 000 20 29 08 -24.1 -27.3 29.06 13 18 96 292 -004 93 86 54 -18-14-12 000 21 29 09 -25.1 -28.4 29.07 13 27 96 293 -006 94 77 62 -19-13-12 000 22 29 10 -24.9 -28.5 29.08 11 27 93 289 -004 90 85 57 -15-12-12 000 23 29 11 -22.9 -25.8 29.08 8 21 112 309 000 95 96 75 -16-12-12 000 24 29 12 -19.3 -21.6 29.09 6 28 105 301 -001 98 91 81 -12-12-12 003 25 29 13 -17.2 -19.3 29.10 6 30 106 302 -001 97 88 58 -11-12-13 000 26 29 14 -12.7 -14.3 29.12 14 31 118 315 -003 98 91 57 -11-12-13 000 27 29 15 -12.2 -14.1 29.14 17 32 116 312 -004 96 92 66 -11-12-13 000 28 29 16 -10.1 -12.7 29.16 22 37 123 319 -006 87 88 88 -10-11-13 000 29 29 17 -9.6 -11.5 29.19 25 37 130 327 -007 92102 89 -10-11-12 020 30 29 18 -11.5 -14.9 29.21 28 41 128 324 001 81 76 60 -12-12-13 001 31 29 19 -12.0 -15.5 29.23 26 42 123 320 003 81 80 60 -12-13-14 000 32 29 20 -12.5 -16.4 29.24 26 42 119 316 000 78 77 54 -13-14-15 000 33 29 21 -12.4 -16.0 29.24 26 42 121 317 -005 80 82 45 -13-14-15 000 34 29 22 -12.6 -16.6 29.26 27 40 119 315 000 77 80 36 -13-14-16 000 35 29 23 -13.4 -17.4 29.29 25 38 124 320 000 78 76 30 -13-15-15 000 36 30 00 -13.9 -17.7 29.29 23 38 126 323 000 79 73 31 -13-14-15 000 37 30 01 -13.4 -17.5 29.29 24 40 124 320 000 77 65 37 -13-14-14 000 38 30 02 -13.5 -17.6 29.28 23 40 121 317 000 77 62 44 -13-14-13 000 39 30 03 -14.4 -18.5 29.28 22 39 125 321 001 77 59 48 -13-14-13 000 40 30 04 -15.5 -19.4 29.28 21 38 128 325 000 79 58 45 -14-14-13 000 41 30 05 -16.1 -20.2 29.28 22 38 127 323 000 79 57 44 -14-14-13 000 42 30 06 -15.9 -20.1 29.27 21 38 124 320 000 78 54 45 -14-14-13 000 43 30 07 -15.4 -19.7 29.27 21 37 123 319 000 76 52 46 -13-14-13 000 44 30 08 -15.3 -19.8 29.27 22 38 123 319 -001 75 54 46 -13-14-13 000 45 30 09 -15.1 -19.8 29.25 22 38 124 320 000 73 53 47 -13-13-12 000 46 30 10 -15.3 -20.1 29.25 23 39 127 323 -001 72 47 45 -13-13-12 000 47 30 11 -15.4 -20.4 29.24 22 41 123 319 000 70 52 43 -12-14-12 000 48 30 12 -15.8 -20.9 29.23 19 41 118 314 -003 70 47 36 -11-12-13 000 49 30 13 -16.0 -21.1 29.21 19 41 118 315 -002 70 40 25 -11-12-12 000 50 30 14 -16.3 -21.3 29.20 17 41 114 310 003 70 37 26 -11-11-12 000 51 30 15 -17.1 -21.8 29.19 16 40 121 317 -001 73 38 27 -12-11-12 000 52 30 16 -16.4 -21.4 29.18 16 40 114 311 004 70 37 32 -11-11-12 000 53 30 17 -16.8 -21.4 29.17 16 34 120 316 003 73 28 34 -12-10-11 000 54 30 18 -15.8 -20.8 29.15 17 44 122 318 000 70 34 33 -12-11-11 000 55 30 19 -16.3 -20.8 29.14 17 37 124 320 -004 75 36 36 -12-11-11 000 56 30 20 -14.5 -20.4 29.12 23 43 120 316 000 63 45 37 -12-13-14 000 57 30 21 -14.4 -20.1 29.11 23 45 114 310 003 65 45 42 -12-13-13 000 58 30 22 -14.0 -19.9 29.10 24 42 115 312 000 63 47 47 -12-13-14 000 59 30 23 -14.3 -19.9 29.09 23 40 122 318 -001 66 54 50 -13-14-15 000 60 01 00 -14.4 -19.7 29.09 22 41 121 317 -003 68 55 49 -13-14-15 000 61 01 01 -13.8 -19.2 29.08 24 42 118 314 -004 66 52 47 -13-14-14 000 62 01 02 -13.1 -18.8 29.06 26 42 121 317 000 64 51 42 -12-13-13 000 63 01 03 -13.2 -18.8 29.05 25 42 122 319 000 65 53 41 -13-14-14 000 64 01 04 -13.5 -18.9 29.04 25 42 122 318 000 66 55 45 -13-14-14 000 65 01 05 -13.7 -19.2 29.03 25 42 121 317 -002 66 52 45 -13-14-14 000 66 01 06 -14.0 -19.3 29.03 24 41 123 319 -002 67 52 47 -13-14-14 000 67 01 07 -14.2 -19.6 29.03 24 41 123 320 -002 67 52 50 -13-14-14 000 68 01 08 -14.4 -19.6 29.03 24 41 124 321 -001 68 53 52 -14-14-14 000 69 01 09 -13.9 -19.3 29.03 25 41 123 319 000 67 54 53 -13-14-14 000 70 01 10 -13.9 -19.1 29.02 25 41 123 319 000 68 56 55 -13-14-14 000 71 01 11 -14.0 -19.1 29.03 25 41 124 320 000 69 59 55 -13-14-14 000 72 01 12 -13.6 -18.9 29.03 25 40 124 320 000 67 58 54 -13-14-14 000 73 01 13 -13.4 -18.4 29.03 25 40 123 320 -004 70 62 54 -13-14-15 000 74 01 14 -13.2 -18.3 29.03 24 40 120 317 -004 69 60 53 -13-14-15 000 75 01 15 -13.4 -18.5 29.03 24 41 119 315 -004 68 58 48 -13-14-15 000 76 01 16 -13.8 -18.9 29.04 23 41 117 313 -003 69 55 43 -13-14-15 000 77 01 17 -14.1 -19.5 29.05 24 41 116 313 -001 67 53 36 -13-14-15 000 78 01 18 -13.7 -19.2 29.04 24 41 114 310 -002 66 53 37 -13-14-15 000 79 01 19 -14.2 -19.3 29.05 23 39 115 312 -005 69 60 46 -13-14-16 000 80 01 20 -13.7 -18.6 29.06 23 37 116 313 -006 71 63 61 -14-15-16 000 81 01 21 -13.8 -18.2 29.07 21 34 116 312 -006 74 70 69 -14-15-16 000 82 01 22 -14.3 -18.3 29.08 19 32 118 315 -006 78 76 72 -14-15-17 000 83 01 23 -14.2 -17.9 29.09 19 32 119 315 -005 81 88 93 -15-16-17 000 84 02 00 -14.4 -16.8 29.10 20 34 125 322 000 92 99 98 -14-15-17 001 85 02 01 -20.3 -23.2 29.11 16 27 87 284 -001 94101100 -17-16-17 009 86 02 02 -23.6 -26.4 29.13 14 32 87 284 -008 97105107 -18-16-17 001 87 02 03 -24.1 -26.8 29.14 15 31 84 280 -003 98101108 -20-16-17 001 88 02 04 -24.9 -27.7 29.14 12 29 80 276 -001 97101100 -21-15-17 001 89 02 05 -24.6 -27.5 29.14 11 32 84 280 000 97101 97 -20-15-17 002 90 02 06 -23.3 -26.1 29.14 11 29 81 277 000 97104 97 -19-16-17 003 91 02 07 -22.4 -25.1 29.15 9 28 83 279 -001 98105 98 -18-16-17 004 92 02 08 -21.8 -24.3 29.14 8 28 80 276 -002 98102 97 -16-16-17 007 93 02 09 -20.2 -22.5 29.14 6 29 87 283 000 99 97 99 -15-15-16 009 94 02 10 -17.9 -19.9 29.14 6 30 105 301 000 100 95100 -14-15-16 011 95 02 11 -14.1 -16.6 29.14 15 33 115 311 -002 91 89 93 -14-15-16 007 96 02 12 -14.1 -17.9 29.14 14 33 118 314 -002 79 68 65 -13-14-15 001 97 02 13 -13.8 -18.7 29.14 18 37 122 318 -003 70 53 56 -13-14-15 000 98 02 14 -13.7 -19.3 29.13 21 40 122 319 000 65 47 49 -13-13-15 000 99 02 15 -13.6 -19.5 29.12 23 42 122 319 -002 63 46 43 -13-14-15 000 100 02 16 -13.3 -19.7 29.12 24 43 121 318 -004 60 44 29 -12-13-15 000 101 02 17 -12.9 -19.6 29.12 26 44 120 317 -005 57 42 26 -13-14-15 000 102 02 18 -12.6 -20.2 29.11 28 48 112 309 -003 51 29 31 -12-13-13 000 103 02 19 -14.1 -20.2 29.11 20 37 121 318 003 62 26 30 -13-12-13 000 104 02 20 -15.5 -21.6 29.10 22 39 117 313 -009 62 23 25 -15-12-11 000 105 02 21 -16.4 -21.9 29.10 20 37 116 313 005 67 18 28 -14-11-11 000 106 02 22 -16.8 -21.9 29.09 19 40 116 313 000 70 16 24 -15-11-11 000 107 02 23 -17.2 -22.0 29.07 15 43 123 319 -002 72 16 20 -15-11-11 000 108 03 00 -16.8 -21.8 29.05 15 42 123 320 008 71 12 20 -15-10-11 000 109 03 01 -16.0 -21.8 29.03 19 44 130 326 004 64 10 19 -14-10-11 000 110 03 02 -15.8 -21.9 29.01 23 45 138 334 002 62 10 19 -13-10-11 000 111 03 03 -16.0 -22.1 29.00 24 46 138 334 006 63 10 19 -14-10-11 000 112 03 04 -16.3 -22.3 28.98 23 45 137 334 004 63 10 20 -14-10-11 000 113 03 05 -16.6 -22.7 28.97 24 46 137 333 005 63 11 21 -14-10-11 000 114 03 06 -16.8 -22.9 28.96 23 47 138 335 002 63 11 23 -14-11-12 000 115 03 07 -17.0 -23.2 28.95 23 47 139 336 005 62 12 25 -14-11-12 000 116 03 08 -17.2 -23.3 28.94 22 42 140 336 005 63 12 26 -15-11-12 000 117 03 09 -17.4 -23.7 28.93 21 45 139 335 003 62 14 31 -13-12-13 000 118 03 10 -17.2 -23.7 28.92 22 46 138 335 005 60 16 34 -13-12-14 000 119 03 11 -17.1 -23.7 28.92 23 45 137 333 007 59 19 39 -13-13-14 000 120 03 12 -17.2 -23.7 28.91 22 45 135 332 006 60 19 39 -14-13-14 000 * 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.