Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2026-10-17/12 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 17 12 -20.8 -26.8 29.47 3 3 231 205 000 62 51 46 -18-16-16 000 1 17 13 -20.1 -24.7 29.47 3 5 232 206 001 77 51 45 -18-16-16 000 2 17 14 -19.7 -23.8 29.48 3 6 237 211 000 82 49 42 -17-16-16 000 3 17 15 -19.4 -23.3 29.47 4 6 262 236 000 82 48 40 -17-16-16 000 4 17 16 -19.3 -22.8 29.49 4 7 267 241 000 85 46 37 -16-15-15 000 5 17 17 -19.7 -22.8 29.51 5 8 267 242 000 88 44 37 -16-15-15 000 6 17 18 -20.4 -23.0 29.51 5 9 262 237 000 94 42 38 -16-15-15 000 7 17 19 -21.2 -22.2 29.51 5 9 266 240 000 116 44 38 -15-15-15 000 8 17 20 -22.8 -23.6 29.49 5 9 262 237 000 123 49 37 -15-15-15 000 9 17 21 -24.6 -25.4 29.50 5 8 259 233 000 126 51 35 -15-15-15 000 10 17 22 -26.6 -27.4 29.49 5 9 251 226 002 129 56 34 -15-15-15 000 11 17 23 -28.8 -29.8 29.48 4 8 232 206 001 132 65 31 -15-15-15 000 12 18 00 -30.2 -31.2 29.48 5 6 235 210 002 133 59 30 -15-15-15 000 13 18 01 -31.0 -32.0 29.48 5 5 234 208 001 134 56 29 -15-15-15 000 14 18 02 -31.7 -32.7 29.48 5 5 218 193 002 135 71 28 -16-16-15 000 15 18 03 -31.6 -32.5 29.49 5 5 211 185 001 135 64 24 -16-15-15 000 16 18 04 -31.6 -32.4 29.49 5 5 197 171 000 135 62 17 -16-15-15 000 17 18 05 -31.4 -32.1 29.47 5 6 177 152 001 134 46 10 -16-15-14 000 18 18 06 -31.9 -32.6 29.45 4 4 195 169 001 135 29 12 -16-15-14 000 19 18 07 -32.0 -32.9 29.45 5 5 205 180 002 135 37 10 -16-15-15 000 20 18 08 -31.4 -32.3 29.44 5 5 204 178 000 135 43 10 -16-15-15 000 21 18 09 -30.1 -31.5 29.45 4 4 184 159 001 127 42 9 -17-15-14 000 22 18 10 -28.6 -29.9 29.45 4 4 217 191 001 124 37 9 -16-15-14 000 23 18 11 -26.8 -28.0 29.44 4 6 237 212 001 120 28 9 -16-14-13 000 24 18 12 -25.0 -26.7 29.43 4 9 242 216 001 111 25 9 -15-14-12 000 25 18 13 -23.3 -25.4 29.43 5 12 259 234 001 105 21 9 -14-12-11 000 26 18 14 -21.0 -22.4 29.43 6 15 250 225 000 110 15 7 -13-11-10 000 27 18 15 -18.9 -21.7 29.42 8 18 231 206 000 93 11 6 -12-10 -9 000 28 18 16 -17.3 -20.6 29.41 9 19 232 207 000 85 8 6 -12 -9 -9 000 29 18 17 -16.5 -18.2 29.41 9 19 230 204 000 102 11 5 -12 -8 -9 000 30 18 18 -16.5 -16.9 29.41 9 19 224 198 002 116 21 4 -11 -8 -9 000 31 18 19 -17.1 -17.7 29.41 9 19 223 197 001 115 26 4 -11 -8 -8 000 32 18 20 -18.0 -18.5 29.41 9 18 216 191 001 117 23 3 -10 -8 -9 000 33 18 21 -20.2 -20.7 29.42 8 16 213 187 002 121 29 3 -9 -9 -9 000 34 18 22 -22.4 -23.1 29.43 7 13 207 182 002 123 23 4 -9 -9 -9 000 35 18 23 -23.4 -24.0 29.45 7 17 206 180 000 124 20 4 -10 -9 -9 000 36 19 00 -23.6 -24.3 29.46 7 19 200 175 -002 124 19 3 -10 -9-10 000 37 19 01 -23.7 -24.4 29.46 8 16 190 164 000 124 17 4 -10 -9-10 000 38 19 02 -24.1 -24.7 29.45 8 15 163 137 000 123 16 4 -10 -9 -9 000 39 19 03 -22.6 -25.6 29.46 8 12 160 134 000 89 14 4 -9 -9-10 000 40 19 04 -22.7 -25.7 29.46 8 12 147 122 000 89 16 4 -8-10-10 000 41 19 05 -22.8 -25.4 29.47 6 9 142 117 -001 94 18 5 -9-10-10 000 42 19 06 -22.7 -24.7 29.47 3 5 179 153 -001 102 18 4 -10-10-10 000 43 19 07 -23.7 -25.1 29.47 5 5 211 185 000 109 19 4 -11-10-10 000 44 19 08 -23.1 -24.7 29.47 6 6 196 171 -001 108 19 4 -11-10-10 000 45 19 09 -21.5 -23.7 29.47 5 6 182 156 000 99 21 4 -10-10-10 000 46 19 10 -21.7 -23.1 29.48 6 9 207 182 000 112 19 4 -10-10-11 000 47 19 11 -22.9 -23.3 29.48 4 9 241 215 001 123 22 4 -10-10-10 000 48 19 12 -21.2 -23.2 29.48 5 14 242 217 002 103 23 4 -10-10-10 000 49 19 13 -19.1 -20.8 29.47 6 15 238 212 000 105 21 5 -10 -9 -9 000 50 19 14 -17.8 -19.0 29.46 6 15 237 212 001 109 28 5 -9 -9 -9 000 51 19 15 -17.2 -18.2 29.47 4 13 230 204 000 111 28 5 -9 -9 -8 000 52 19 16 -17.3 -18.0 29.48 3 11 253 228 001 116 27 5 -8 -9 -8 000 53 19 17 -17.6 -18.3 29.49 3 10 254 228 001 118 19 5 -9 -9 -9 000 54 19 18 -18.6 -19.1 29.48 3 8 261 235 001 119 10 5 -9 -8 -9 000 55 19 19 -20.5 -21.2 29.48 2 6 265 240 001 121 9 5 -9 -8 -8 000 56 19 20 -22.2 -22.5 29.49 1 5 227 202 001 124 9 6 -8 -7 -8 000 57 19 21 -23.6 -23.8 29.50 1 7 66 40 000 125 10 6 -8 -8 -8 000 58 19 22 -25.0 -25.3 29.51 2 7 48 23 001 127 13 8 -8 -8 -9 000 59 19 23 -26.8 -27.4 29.52 4 7 73 47 000 129 17 13 -9 -9-10 000 60 20 00 -27.8 -28.6 29.54 6 12 68 42 000 130 36 12 -11-10-10 000 61 20 01 -28.8 -29.7 29.54 4 22 100 75 001 131 37 11 -10-10-12 000 62 20 02 -28.9 -29.7 29.53 5 23 70 45 003 131 31 8 -12-12-12 000 63 20 03 -29.3 -30.1 29.53 5 19 94 68 002 132 31 7 -13-13-12 000 64 20 04 -28.5 -29.3 29.52 7 17 92 66 000 130 32 6 -13-13-13 000 65 20 05 -28.6 -29.5 29.51 7 17 103 77 000 131 31 7 -13-13-13 000 66 20 06 -27.4 -28.1 29.50 8 17 104 79 000 129 32 7 -14-13-13 000 67 20 07 -26.0 -26.8 29.49 9 22 98 73 000 126 33 6 -14-14-13 000 68 20 08 -24.5 -26.2 29.47 10 20 90 65 000 112 34 5 -14-13-13 000 69 20 09 -24.8 -27.1 29.47 11 19 72 47 001 104 39 6 -14-13-14 000 70 20 10 -23.5 -26.7 29.47 8 20 73 47 000 93 30 7 -14-13-13 000 71 20 11 -22.5 -25.6 29.47 13 23 65 40 -001 92 33 8 -15-13-13 000 72 20 12 -21.5 -23.7 29.46 14 21 75 50 000 101 41 8 -15-13-13 000 73 20 13 -20.5 -22.8 29.45 15 23 76 50 000 100 47 7 -17-14-13 000 74 20 14 -19.2 -22.5 29.43 15 23 72 47 -001 88 46 7 -17-14-13 000 75 20 15 -17.3 -21.7 29.41 16 26 66 40 -001 76 39 9 -15-14-13 000 76 20 16 -16.4 -20.5 29.39 16 25 65 40 000 79 37 10 -15-14-13 000 77 20 17 -16.6 -20.7 29.37 15 24 69 43 -002 79 39 8 -16-14-13 000 78 20 18 -17.1 -21.0 29.35 15 24 72 47 000 81 38 8 -15-13-12 000 79 20 19 -17.2 -21.4 29.33 14 23 67 42 000 78 33 9 -14-12-12 000 80 20 20 -18.1 -22.0 29.31 13 25 72 46 000 81 34 8 -14-12-12 000 81 20 21 -18.5 -22.1 29.28 14 23 69 44 000 84 35 8 -14-12-12 000 82 20 22 -18.4 -22.7 29.27 13 27 61 35 000 78 40 8 -15-13-12 000 83 20 23 -18.2 -22.6 29.25 12 24 63 37 000 76 39 8 -13-14-12 000 84 21 00 -17.9 -22.2 29.23 12 24 60 35 001 77 35 7 -12-13-12 000 85 21 01 -17.9 -22.3 29.21 13 24 62 37 002 77 31 7 -13-12-13 000 86 21 02 -17.5 -21.9 29.18 14 27 66 40 000 77 24 8 -12-11-12 000 87 21 03 -17.4 -21.1 29.15 16 26 77 52 001 83 30 12 -14-10-11 000 88 21 04 -18.5 -21.7 29.13 19 27 79 53 002 88 28 13 -15-11-11 000 89 21 05 -19.4 -22.2 29.11 19 29 76 51 -002 92 32 9 -15-12-12 000 90 21 06 -19.4 -22.2 29.09 18 30 74 48 -003 94 39 6 -15-13-12 000 91 21 07 -19.1 -21.3 29.08 20 31 72 46 -002 99 45 6 -16-14-13 000 92 21 08 -18.8 -20.5 29.08 20 31 73 47 000 104 88 6 -17-14-13 000 93 21 09 -18.4 -19.8 29.07 20 31 74 49 000 107 86 6 -17-14-13 000 94 21 10 -17.7 -19.1 29.07 22 33 77 52 000 106 67 6 -18-14-13 000 95 21 11 -17.0 -19.3 29.07 23 34 77 52 002 95 74 7 -18-16-13 000 96 21 12 -16.1 -18.9 29.07 25 38 74 49 000 91 72 8 -17-16-14 000 97 21 13 -14.0 -18.6 29.07 28 43 68 42 000 73 49 25 -15-14-14 000 98 21 14 -14.2 -18.0 29.08 28 40 71 45 -001 79 82 25 -15-17-16 000 99 21 15 -15.7 -19.2 29.09 29 40 72 46 -002 84 98 19 -17-18-19 000 100 21 16 -15.3 -18.6 29.11 27 39 72 47 000 85 99 42 -16-18-19 000 101 21 17 -14.8 -18.4 29.10 26 38 76 51 003 83 94 47 -16-17-18 000 102 21 18 -14.8 -18.1 29.09 25 39 76 50 005 85 94 70 -15-17-18 000 103 21 19 -14.7 -18.2 29.09 25 38 75 50 005 83 92105 -15-16-18 000 104 21 20 -14.4 -19.1 29.09 25 38 78 52 005 73 65106 -15-16-17 000 105 21 21 -14.4 -19.4 29.08 22 38 85 60 002 70 48 40 -13-14-16 000 106 21 22 -15.1 -19.8 29.07 20 36 85 59 000 73 54 21 -13-14-15 000 107 21 23 -15.6 -20.5 29.05 19 38 92 66 001 71 41 29 -13-13-14 000 108 22 00 -16.2 -20.9 29.04 20 35 88 63 -001 73 43 20 -14-13-14 000 109 22 01 -17.7 -22.5 29.03 20 37 81 55 -002 74 45 22 -14-13-15 000 110 22 02 -18.5 -23.4 29.02 17 38 85 60 -002 73 39 29 -15-14-14 000 111 22 03 -20.1 -24.9 29.01 15 37 86 60 -001 74 38 38 -15-14-15 000 112 22 04 -21.2 -25.9 28.99 14 36 85 59 000 75 36 40 -15-15-15 000 113 22 05 -21.9 -26.6 28.98 14 35 82 57 -001 76 37 35 -15-15-15 000 114 22 06 -22.8 -27.1 28.97 12 31 83 57 000 80 35 29 -15-16-15 000 115 22 07 -23.8 -27.4 28.97 10 30 85 59 001 87 33 28 -15-16-15 000 116 22 08 -24.6 -27.7 28.96 8 29 85 60 000 93 33 30 -15-16-15 000 117 22 09 -24.2 -27.4 28.96 7 23 87 61 001 91 32 29 -15-16-16 000 118 22 10 -22.8 -26.8 28.95 8 27 87 61 001 83 33 28 -15-16-16 000 119 22 11 -21.6 -25.6 28.95 7 25 89 64 000 81 32 27 -15-16-16 000 120 22 12 -20.5 -24.4 28.94 5 22 94 69 -001 83 31 30 -15-15-16 000 * 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.