Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2025-11-08/12 UTC MPAS cell scale: 5.5 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 08 12 -15.3 -17.8 29.29 6 7 65 39 000 93 96 89 -16-16-16 000 1 08 13 -14.9 -17.2 29.30 6 7 64 39 000 94 98 89 -16-16-16 000 2 08 14 -14.5 -16.9 29.30 6 7 67 41 000 93 94 87 -16-16-16 000 3 08 15 -14.2 -16.6 29.31 5 7 70 44 000 93 89 86 -15-15-16 000 4 08 16 -14.0 -16.3 29.32 4 6 72 46 000 93 84 85 -15-15-15 000 5 08 17 -13.9 -16.2 29.34 4 5 68 43 000 94 81 83 -15-15-15 000 6 08 18 -14.1 -16.2 29.35 3 5 65 40 000 95 78 82 -15-14-15 000 7 08 19 -14.9 -16.6 29.36 3 4 69 43 000 99 74 81 -14-14-15 000 8 08 20 -15.7 -16.7 29.38 2 3 70 45 000 107 70 81 -14-14-15 000 9 08 21 -16.9 -17.0 29.37 2 2 85 59 000 117 70 81 -14-14-15 000 10 08 22 -19.0 -19.2 29.38 2 3 82 57 000 119 71 82 -14-14-15 000 11 08 23 -21.8 -22.1 29.41 2 3 76 50 000 123 73 82 -14-14-15 000 12 09 00 -24.4 -24.7 29.39 2 3 76 50 000 126 76 83 -14-14-15 000 13 09 01 -26.3 -26.6 29.42 2 3 89 63 000 129 76 84 -14-14-15 000 14 09 02 -27.9 -28.2 29.42 3 4 105 79 000 131 77 87 -14-15-15 000 15 09 03 -28.7 -29.5 29.43 3 6 110 85 000 131 79 89 -14-15-15 000 16 09 04 -29.5 -30.2 29.45 4 8 101 76 000 133 86 91 -15-15-15 000 17 09 05 -28.7 -29.2 29.46 4 12 104 79 000 132 92 90 -15-15-15 000 18 09 06 -28.4 -28.8 29.47 5 10 80 55 000 132 88 89 -15-15-15 000 19 09 07 -27.5 -28.2 29.47 2 15 80 54 000 130101 82 -16-16-16 000 20 09 08 -26.5 -27.5 29.48 3 15 104 78 000 121 73 76 -16-16-16 000 21 09 09 -24.7 -27.1 29.49 3 15 108 83 000 102 54 75 -16-16-16 000 22 09 10 -22.2 -25.6 29.49 5 12 87 61 000 91 52 76 -16-16-16 000 23 09 11 -20.1 -23.8 29.49 6 10 84 59 000 86 49 75 -17-16-16 000 24 09 12 -18.6 -22.7 29.49 6 11 96 71 000 82 48 76 -17-16-15 000 25 09 13 -17.8 -21.7 29.49 6 11 107 82 000 82 49 75 -17-15-15 000 26 09 14 -17.2 -20.9 29.49 5 12 115 89 000 84 51 68 -16-15-15 000 27 09 15 -16.7 -20.2 29.50 5 12 119 93 000 86 57 71 -16-15-14 000 28 09 16 -16.2 -19.5 29.50 4 7 129 103 000 87 65 73 -16-15-14 000 29 09 17 -16.0 -19.1 29.49 4 4 134 109 000 87 72 73 -15-15-14 000 30 09 18 -16.0 -18.8 29.50 2 5 137 111 000 88 74 71 -15-14-14 000 31 09 19 -16.4 -19.3 29.50 1 3 152 126 000 91 73 70 -14-14-14 000 32 09 20 -17.2 -19.5 29.50 1 2 186 160 000 96 68 70 -14-14-14 000 33 09 21 -18.4 -19.7 29.49 1 2 216 191 000 106 58 71 -14-14-14 000 34 09 22 -19.8 -19.9 29.50 2 2 237 212 000 120 50 73 -13-13-14 000 35 09 23 -21.8 -22.0 29.50 3 3 241 215 000 123 49 73 -13-13-14 000 36 10 00 -24.9 -25.2 29.50 3 3 224 199 000 126 53 71 -13-14-14 000 37 10 01 -27.8 -28.6 29.51 4 4 200 174 000 130 52 68 -13-13-14 000 38 10 02 -28.1 -28.7 29.50 4 4 181 156 000 130 60 65 -14-13-14 000 39 10 03 -28.2 -28.9 29.50 5 7 135 110 000 130 74 63 -14-14-14 000 40 10 04 -29.6 -30.5 29.50 5 15 97 71 000 133 72 62 -15-15-15 000 41 10 05 -29.9 -30.9 29.50 4 15 109 83 000 133 81 61 -16-15-15 000 42 10 06 -29.6 -30.2 29.51 5 11 105 79 000 133 85 61 -16-14-14 000 43 10 07 -28.8 -29.3 29.51 4 10 103 77 000 132 78 60 -16-16-15 000 44 10 08 -27.4 -28.2 29.51 3 10 126 100 000 123 62 58 -16-16-16 000 45 10 09 -25.3 -26.8 29.51 2 10 130 104 000 112 57 58 -16-16-16 000 46 10 10 -23.1 -25.5 29.50 2 8 133 108 000 101 57 55 -17-16-16 000 47 10 11 -20.7 -23.3 29.50 2 7 142 116 000 96 57 53 -17-16-15 000 48 10 12 -17.9 -21.6 29.50 5 14 111 85 000 84 58 51 -17-15-15 000 49 10 13 -16.6 -20.6 29.49 8 14 106 81 000 81 63 49 -17-15-15 000 50 10 14 -15.7 -19.0 29.50 8 12 102 76 000 86 61 47 -17-14-14 000 51 10 15 -15.3 -17.7 29.49 8 10 91 65 000 93 56 46 -15-14-14 000 52 10 16 -15.4 -17.6 29.50 7 9 80 54 000 95 68 48 -14-14-14 000 53 10 17 -15.6 -17.8 29.51 7 9 81 55 000 95 68 54 -14-13-14 000 54 10 18 -15.9 -18.1 29.51 7 10 81 55 000 96 71 62 -15-14-14 000 55 10 19 -16.5 -18.6 29.51 6 11 85 60 000 97 68 78 -15-14-14 000 56 10 20 -17.7 -19.3 29.51 6 10 93 67 000 104 71 83 -15-14-14 000 57 10 21 -19.4 -20.1 29.52 6 9 96 70 000 119 70 78 -15-15-15 000 58 10 22 -21.2 -21.9 29.52 6 9 94 68 000 121 72 60 -15-15-15 000 59 10 23 -23.4 -24.2 29.53 5 10 94 68 000 124 75 58 -15-15-16 000 60 11 00 -26.0 -26.9 29.53 5 9 107 82 -001 128 72 56 -14-15-15 000 61 11 01 -27.8 -28.6 29.54 5 10 110 84 000 130 74 59 -15-14-15 000 62 11 02 -28.6 -29.5 29.54 6 13 114 88 000 131 80 55 -14-14-15 000 63 11 03 -28.6 -29.3 29.53 7 19 111 86 -001 131 78 49 -14-14-14 000 64 11 04 -27.9 -28.6 29.53 7 20 115 90 -001 130 77 47 -13-14-14 000 65 11 05 -24.6 -25.3 29.53 8 21 99 73 000 126 97 55 -13-13-14 000 66 11 06 -18.3 -20.2 29.53 9 24 90 64 -002 101 89 73 -13-13-14 000 67 11 07 -14.5 -16.7 29.52 16 32 86 60 000 94 99 96 -13-13-14 004 68 11 08 -12.9 -15.0 29.52 18 29 84 59 -003 94102107 -13-13-13 007 69 11 09 -11.7 -13.5 29.52 17 23 73 48 000 95101109 -12-13-12 011 70 11 10 -10.7 -12.4 29.52 16 21 70 45 -003 95103110 -12-12-12 013 71 11 11 -9.6 -11.4 29.52 15 20 72 47 000 94102106 -11-11-11 016 72 11 12 -8.7 -10.5 29.52 15 20 78 53 000 93103103 -10-11-11 009 73 11 13 -8.4 -10.5 29.51 17 23 76 51 000 89102102 -9-11-11 002 74 11 14 -8.0 -10.6 29.50 17 23 77 52 000 86 95 98 -9-10-11 000 75 11 15 -7.6 -10.3 29.49 17 24 80 55 000 84 86 69 -9-10-11 000 76 11 16 -7.3 -10.0 29.47 15 23 82 57 -002 83 79 75 -8 -9-10 000 77 11 17 -6.9 -10.1 29.45 15 24 85 60 000 79 64 70 -8 -8-10 000 78 11 18 -6.9 -10.5 29.43 16 27 88 63 000 76 57 60 -8 -8 -9 000 79 11 19 -6.9 -10.2 29.41 17 29 86 61 001 78 44 56 -7 -7 -8 000 80 11 20 -6.9 -10.3 29.39 17 31 89 64 000 78 49 54 -7 -7 -8 000 81 11 21 -7.3 -10.9 29.37 18 33 90 65 -001 76 53 79 -7 -7 -8 000 82 11 22 -7.6 -11.3 29.34 18 34 91 65 000 75 62 95 -6 -6 -8 000 83 11 23 -7.7 -10.9 29.32 18 34 92 66 001 80 80 98 -6 -7 -8 000 84 12 00 -7.2 -9.9 29.29 20 35 96 70 000 84 94 97 -7 -6 -7 004 85 12 01 -6.8 -9.2 29.26 21 36 94 69 000 86 95 99 -7 -6 -7 004 86 12 02 -6.4 -8.0 29.23 23 36 93 67 000 92 99106 -6 -6 -7 015 87 12 03 -6.3 -7.9 29.20 22 35 92 67 001 93 99106 -6 -7 -7 015 88 12 04 -6.6 -8.1 29.16 20 35 96 70 001 93 98105 -6 -7 -7 009 89 12 05 -6.1 -7.6 29.12 20 34 98 72 002 93 98105 -6 -7 -8 012 90 12 06 -5.4 -6.9 29.07 20 33 97 71 003 92 96104 -6 -6 -7 018 91 12 07 -4.9 -6.8 29.02 19 33 96 71 000 88 89 93 -5 -6 -7 006 92 12 08 -4.2 -6.6 28.97 20 35 96 70 002 83 84 98 -4 -5 -6 003 93 12 09 -3.7 -5.5 28.92 21 34 96 70 001 87 92103 -4 -5 -6 001 94 12 10 -2.8 -4.7 28.88 22 33 96 71 003 86 92109 -3 -5 -6 002 95 12 11 -2.3 -3.9 28.84 22 31 98 72 004 88 94106 -3 -4 -5 000 96 12 12 -1.9 -3.2 28.80 20 29 96 71 -002 91100107 -3 -4 -5 004 97 12 13 -1.7 -3.0 28.76 20 29 94 68 -003 90101108 -3 -4 -5 003 98 12 14 -1.5 -2.7 28.74 20 28 91 66 000 91100105 -3 -4 -5 013 99 12 15 -1.2 -2.2 28.72 20 28 93 68 -001 92103106 -2 -4 -4 022 100 12 16 0.6 -0.1 28.70 19 26 67 42 001 94 99106 0 -1 -3 055 101 12 17 0.7 0.2 28.72 18 24 61 35 -005 95100106 0 -1 -2 052 102 12 18 0.1 -0.5 28.73 22 29 65 40 -005 94102106 -1 -2 -3 093 103 12 19 -1.3 -2.2 28.76 23 30 69 44 -002 93103106 -2 -3 -4 047 104 12 20 -1.5 -2.5 28.77 21 28 74 49 000 93103105 -2 -3 -4 051 105 12 21 -1.6 -2.5 28.78 18 27 76 50 -003 94103104 -2 -3 -4 047 106 12 22 -1.7 -2.5 28.80 18 26 79 53 -005 94103106 -2 -3 -4 047 107 12 23 -1.9 -2.6 28.81 19 28 78 52 -003 95102105 -2 -3 -4 053 108 13 00 -1.5 -2.2 28.82 19 29 73 48 -002 95103102 -2 -3 -4 047 109 13 01 -1.5 -2.2 28.83 17 27 75 50 -001 95101 99 -2 -3 -4 024 110 13 02 -1.4 -2.2 28.83 19 30 78 52 -003 95103104 -2 -3 -4 016 111 13 03 -1.4 -2.2 28.83 17 27 75 49 -001 95103103 -2 -3 -4 019 112 13 04 -1.4 -2.3 28.84 19 27 69 44 -002 94101105 -2 -3 -4 036 113 13 05 -1.5 -2.3 28.85 17 25 68 42 -003 94103 94 -2 -3 -4 016 114 13 06 -1.6 -2.4 28.87 17 25 62 36 -002 95103106 -2 -3 -4 026 115 13 07 -1.9 -2.6 28.89 18 23 59 34 -004 95104105 -3 -4 -4 025 116 13 08 -1.4 -2.1 28.91 16 22 54 28 -003 95103104 -2 -3 -4 012 117 13 09 -2.5 -3.2 28.94 17 22 38 13 -002 96103103 -3 -3 -4 006 118 13 10 -4.2 -5.0 28.99 17 23 21 356 -004 97104 94 -5 -4 -4 009 119 13 11 -5.2 -6.2 29.04 19 23 16 350 -004 96107106 -6 -6 -5 009 120 13 12 -6.2 -7.4 29.09 16 20 11 345 -006 96109106 -8 -9 -7 007 * 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.