Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2025-11-10/12 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 10 12 -18.0 -23.9 29.48 4 5 78 53 000 65 54 61 -18-18-17 000 1 10 13 -17.2 -22.6 29.48 4 6 78 52 000 71 57 60 -18-17-17 000 2 10 14 -16.8 -21.9 29.48 4 6 83 57 000 73 59 58 -18-17-17 000 3 10 15 -16.5 -21.3 29.47 4 6 87 62 000 75 62 56 -18-17-17 000 4 10 16 -16.3 -20.5 29.49 4 7 89 64 000 79 64 55 -17-17-17 000 5 10 17 -16.3 -20.1 29.50 3 5 87 61 000 82 62 54 -17-17-17 000 6 10 18 -16.5 -19.9 29.48 3 4 87 61 000 85 59 54 -17-17-16 000 7 10 19 -17.5 -20.4 29.48 3 4 82 56 000 88 56 53 -17-16-16 000 8 10 20 -18.8 -21.2 29.48 4 5 77 51 000 95 55 53 -17-16-16 000 9 10 21 -20.5 -21.9 29.49 5 6 73 47 000 109 55 53 -17-16-16 000 10 10 22 -22.3 -22.8 29.48 5 7 68 43 000 122 56 54 -17-16-16 000 11 10 23 -24.4 -25.2 29.49 5 7 70 45 000 125 58 54 -17-17-17 000 12 11 00 -27.1 -28.0 29.48 4 7 83 58 000 129 61 54 -17-17-17 000 13 11 01 -29.6 -30.6 29.49 4 7 98 73 000 133 62 55 -17-17-17 000 14 11 02 -30.8 -31.8 29.49 5 8 107 82 000 134 68 56 -17-17-17 000 15 11 03 -31.2 -32.0 29.49 4 8 107 82 000 134 67 57 -17-17-17 000 16 11 04 -31.7 -32.5 29.49 4 9 111 85 000 135 63 60 -17-17-17 000 17 11 05 -31.4 -32.7 29.50 5 10 109 84 000 130 65 63 -17-17-17 000 18 11 06 -29.8 -30.2 29.49 4 12 110 85 000 133 76 64 -17-17-17 000 19 11 07 -28.7 -29.0 29.47 4 10 119 93 000 132 81 63 -17-17-17 000 20 11 08 -27.2 -27.5 29.46 3 9 121 96 000 130 99 62 -17-16-17 000 21 11 09 -24.8 -25.1 29.46 3 11 109 84 000 127 84 59 -17-16-16 000 22 11 10 -22.8 -23.3 29.45 6 9 91 66 000 122 60 59 -16-15-16 000 23 11 11 -21.3 -22.4 29.44 5 9 84 58 000 113 62 59 -16-16-16 000 24 11 12 -19.5 -21.5 29.44 4 9 95 69 000 101 66 59 -15-15-16 000 25 11 13 -17.8 -20.1 29.43 5 10 103 77 000 96 75 60 -15-15-15 000 26 11 14 -16.7 -18.7 29.41 6 9 111 85 000 98 78 62 -15-14-15 000 27 11 15 -15.3 -17.7 29.39 7 11 99 73 000 93 82 57 -14-15-15 000 28 11 16 -14.2 -16.6 29.38 7 14 88 63 000 92 83 52 -14-14-15 000 29 11 17 -13.6 -16.0 29.36 7 15 83 57 000 92 87 49 -13-14-15 000 30 11 18 -13.8 -16.0 29.34 4 12 97 71 000 93 79 48 -12-13-14 000 31 11 19 -14.6 -16.4 29.33 5 9 126 101 000 98 92 46 -12-13-14 000 32 11 20 -15.5 -16.6 29.31 7 13 138 113 000 108 99 60 -12-13-13 000 33 11 21 -16.3 -16.9 29.29 7 9 132 106 000 116101 67 -12-13-13 000 34 11 22 -18.2 -18.8 29.27 6 8 132 106 000 118 93 70 -12-12-13 000 35 11 23 -20.4 -21.1 29.25 6 8 147 121 000 121 87 70 -11-12-13 000 36 12 00 -21.5 -22.3 29.24 6 9 154 128 000 122 77 62 -11-11-12 000 37 12 01 -22.5 -23.3 29.23 6 12 139 113 000 123 73 67 -11-11-12 000 38 12 02 -23.6 -24.4 29.20 5 10 140 114 000 124 74 84 -11-11-12 000 39 12 03 -24.3 -25.2 29.18 6 12 149 123 000 125 74 98 -11-11-12 000 40 12 04 -24.4 -25.3 29.16 6 12 156 131 000 125 76102 -11-11-11 000 41 12 05 -23.7 -24.5 29.15 6 11 169 143 000 125 80101 -10-11-11 000 42 12 06 -22.5 -23.2 29.13 5 10 177 151 000 123 90104 -10-11-11 000 43 12 07 -21.3 -21.9 29.11 5 8 182 156 000 122101104 -10-11-11 000 44 12 08 -19.9 -20.2 29.10 4 6 191 165 000 121103102 -10-10-11 000 45 12 09 -17.9 -18.6 29.08 4 4 193 168 000 114102100 -10-10-11 000 46 12 10 -15.7 -17.5 29.07 4 5 193 167 000 100101 99 -10-10-11 000 47 12 11 -13.5 -15.5 29.07 3 4 197 172 000 95102 98 -9-10-11 000 48 12 12 -11.2 -13.3 29.06 3 5 200 174 000 94101 98 -9-10-11 000 49 12 13 -9.0 -12.1 29.05 5 7 198 173 -001 82 96 97 -9-10-10 000 50 12 14 -8.3 -11.5 29.05 7 8 197 172 000 81 95 94 -9 -9-10 000 51 12 15 -8.1 -11.0 29.05 6 7 199 173 -001 83 92 94 -8 -9 -9 000 52 12 16 -8.0 -10.9 29.05 5 7 200 174 -001 83 89 94 -8 -9 -9 000 53 12 17 -8.0 -10.6 29.05 5 7 208 182 000 85 88 93 -8 -8 -9 000 54 12 18 -8.6 -10.8 29.06 4 7 217 192 -001 88 87 92 -8 -8 -9 000 55 12 19 -8.5 -10.7 29.05 4 7 228 203 000 89 85 93 -7 -8 -9 000 56 12 20 -8.1 -10.4 29.05 3 6 230 204 000 88 82 94 -7 -8 -9 000 57 12 21 -8.5 -10.5 29.06 3 5 245 219 000 89 79 94 -7 -8 -9 000 58 12 22 -9.8 -10.8 29.08 4 5 259 234 000 101 78 95 -7 -8 -9 000 59 12 23 -12.0 -12.2 29.09 3 5 247 222 000 112 77 95 -7 -8 -9 000 60 13 00 -16.1 -16.6 29.10 4 4 253 227 000 116 77 99 -7 -8 -9 000 61 13 01 -18.0 -18.8 29.11 4 4 238 212 000 118 78100 -7 -8 -9 000 62 13 02 -18.4 -18.8 29.12 3 3 232 206 -001 119 79100 -7 -8 -9 000 63 13 03 -20.2 -20.6 29.12 2 2 224 198 000 121 80102 -7 -8 -9 000 64 13 04 -19.5 -19.7 29.12 3 3 193 167 000 120 80 98 -7 -8 -9 000 65 13 05 -17.5 -18.3 29.13 2 3 179 154 000 111 80 83 -7 -8 -8 000 66 13 06 -15.6 -17.1 29.14 1 2 182 156 000 103 83 91 -7 -8 -8 000 67 13 07 -13.6 -15.4 29.15 1 3 148 123 000 97 87 88 -7 -8 -8 000 68 13 08 -11.7 -13.5 29.16 2 4 143 117 000 96 86 81 -7 -7 -8 000 69 13 09 -9.8 -11.4 29.17 2 4 134 109 000 96 83 82 -7 -7 -7 000 70 13 10 -8.3 -9.8 29.18 4 4 105 79 000 96 79 77 -6 -6 -7 000 71 13 11 -7.1 -8.4 29.19 2 3 112 86 000 96 81 84 -6 -7 -7 000 72 13 12 -6.4 -7.6 29.20 1 3 120 94 000 96 77 86 -6 -6 -7 000 73 13 13 -5.7 -7.0 29.21 3 6 88 62 000 94 74 83 -6 -6 -6 000 74 13 14 -5.5 -7.3 29.22 3 6 80 55 000 90 68 79 -6 -5 -6 000 75 13 15 -5.3 -7.7 29.22 3 5 110 84 001 86 65 76 -5 -5 -6 000 76 13 16 -5.1 -7.7 29.23 3 6 111 85 001 83 64 76 -5 -5 -5 000 77 13 17 -5.0 -7.3 29.24 3 6 107 82 000 85 69 75 -5 -5 -5 000 78 13 18 -5.3 -7.0 29.25 3 6 122 96 000 88 69 72 -5 -5 -5 000 79 13 19 -6.1 -7.5 29.26 4 5 134 108 000 92 67 68 -5 -5 -5 000 80 13 20 -7.3 -8.0 29.27 5 6 126 101 000 102 73 62 -5 -5 -5 000 81 13 21 -9.0 -9.3 29.28 5 7 80 54 000 108 79 69 -5 -5 -6 000 82 13 22 -11.0 -11.4 29.29 4 8 72 46 000 110 79 75 -5 -5 -6 000 83 13 23 -12.8 -13.2 29.31 4 9 83 57 000 113 73 86 -6 -6 -6 000 84 14 00 -15.4 -15.9 29.32 5 11 99 74 000 115 88 82 -7 -6 -7 000 85 14 01 -16.7 -17.1 29.33 5 15 106 81 000 117 94 88 -7 -7 -7 000 86 14 02 -16.1 -16.4 29.34 6 16 105 80 000 116 99 94 -7 -7 -7 000 87 14 03 -15.0 -15.3 29.36 7 16 100 75 -001 115 94105 -7 -7 -7 000 88 14 04 -12.5 -13.2 29.37 9 17 86 61 -001 107 99102 -7 -7 -7 006 89 14 05 -10.9 -12.0 29.37 10 19 87 61 -001 102 97102 -7 -7 -7 010 90 14 06 -9.7 -11.3 29.38 11 24 83 58 000 96 93102 -7 -7 -7 009 91 14 07 -8.7 -10.4 29.38 15 26 84 58 000 94 89102 -7 -6 -7 005 92 14 08 -7.9 -9.6 29.38 15 27 86 60 001 93 85101 -7 -6 -7 002 93 14 09 -7.0 -8.2 29.38 15 24 82 57 000 96 99100 -6 -6 -7 001 94 14 10 -5.0 -6.2 29.39 17 26 84 59 000 94 99101 -5 -6 -6 004 95 14 11 -3.9 -5.0 29.39 17 24 79 54 001 94100103 -5 -6 -6 004 96 14 12 -3.5 -4.8 29.39 19 26 82 57 000 92106104 -5 -6 -6 006 97 14 13 -2.8 -4.1 29.38 19 25 79 53 -001 92105 97 -4 -5 -6 009 98 14 14 -2.1 -3.4 29.38 18 23 75 50 -001 90100106 -3 -4 -6 003 99 14 15 -1.9 -3.2 29.37 16 21 75 50 -001 91 99106 -3 -4 -5 003 100 14 16 -1.6 -2.7 29.37 16 22 67 42 000 91101103 -3 -4 -5 008 101 14 17 -1.6 -2.9 29.37 16 21 64 39 000 89 99104 -2 -4 -5 007 102 14 18 -1.7 -3.3 29.38 15 21 74 49 003 87 99 95 -2 -4 -5 005 103 14 19 -1.9 -3.6 29.37 14 21 81 56 000 87 88 91 -3 -4 -4 000 104 14 20 -2.9 -4.4 29.36 11 20 89 64 000 89 76 84 -3 -4 -5 000 105 14 21 -4.1 -5.6 29.35 8 18 93 68 000 90 68 86 -2 -3 -5 000 106 14 22 -5.2 -6.1 29.33 8 18 106 80 002 98 68 80 -2 -3 -4 000 107 14 23 -5.2 -6.7 29.32 9 20 99 73 000 92 64 78 -2 -3 -4 000 108 15 00 -5.7 -7.8 29.31 10 21 95 70 000 86 63 77 -3 -3 -4 000 109 15 01 -6.0 -8.2 29.30 10 21 94 69 002 86 65 78 -3 -3 -4 000 110 15 02 -6.3 -8.9 29.30 10 22 92 67 002 83 63 74 -3 -3 -4 000 111 15 03 -6.6 -9.2 29.29 10 22 91 66 000 83 57 65 -3 -3 -4 000 112 15 04 -6.5 -9.2 29.28 10 24 90 65 000 82 48 61 -4 -3 -4 000 113 15 05 -6.5 -9.4 29.27 12 26 85 60 -001 80 50 60 -4 -3 -4 000 114 15 06 -6.6 -9.5 29.27 13 23 83 57 -002 81 62 58 -4 -4 -4 000 115 15 07 -6.4 -9.2 29.27 13 22 81 56 -001 82 54 47 -5 -3 -4 000 116 15 08 -6.2 -8.8 29.28 13 24 85 59 -001 83 53 46 -5 -4 -4 000 117 15 09 -5.8 -8.5 29.28 13 22 84 59 001 83 45 33 -4 -3 -4 000 118 15 10 -4.6 -7.6 29.27 14 25 85 60 000 79 45 34 -4 -4 -5 000 119 15 11 -3.8 -7.3 29.27 15 24 77 51 000 74 44 25 -3 -4 -4 000 120 15 12 -3.1 -6.7 29.27 15 25 77 52 000 73 42 43 -3 -3 -4 000 * 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.