Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2026-10-15/12 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 15 12 -14.9 -21.5 29.02 1 1 285 259 000 42 15 9 -11 -9 -9 000 1 15 13 -14.6 -21.4 29.02 1 2 247 222 -003 51 19 13 -11-10-11 000 2 15 14 -14.2 -20.8 29.02 2 2 134 109 -005 62 28 17 -11-11-11 000 3 15 15 -13.5 -19.1 29.01 5 19 132 106 003 64 31 20 -11-12-13 000 4 15 16 -13.5 -19.0 29.02 11 27 105 80 -002 65 27 21 -14-13-13 000 5 15 17 -15.6 -20.3 29.03 11 17 72 46 -003 73 19 13 -13-13-14 000 6 15 18 -16.3 -20.4 29.01 6 9 77 51 000 78 41 16 -13-13-14 000 7 15 19 -18.0 -21.3 29.01 6 8 97 71 -003 84 60 17 -13-14-14 000 8 15 20 -19.2 -22.0 28.99 9 18 87 62 001 92 22 17 -16-14-15 000 9 15 21 -20.4 -23.8 29.03 12 22 84 58 -002 87 40 19 -18-17-16 000 10 15 22 -21.3 -24.9 29.03 13 25 79 53 -002 86 58 23 -19-17-16 000 11 15 23 -22.2 -25.6 29.03 11 24 80 55 000 89 80 29 -18-18-17 000 12 16 00 -23.3 -26.1 29.04 9 25 91 66 -001 96 68 40 -17-17-17 000 13 16 01 -24.2 -26.1 29.01 9 21 96 70 000 108 60 52 -15-17-17 000 14 16 02 -22.9 -24.5 29.04 8 25 90 65 000 110 55 57 -16-15-16 000 15 16 03 -22.2 -24.5 29.05 11 29 82 57 000 101 52 66 -16-15-16 000 16 16 04 -22.0 -25.2 29.06 15 32 79 53 000 91 53 67 -17-15-16 000 17 16 05 -22.3 -25.7 29.06 14 28 72 46 -001 90 69 60 -17-17-16 000 18 16 06 -23.1 -26.0 29.05 11 25 62 37 000 95 69 57 -17-18-17 000 19 16 07 -23.3 -26.7 29.07 10 26 60 34 000 90 56 61 -17-17-18 000 20 16 08 -22.8 -26.3 29.09 10 25 69 43 000 88 68 66 -18-17-17 000 21 16 09 -22.0 -25.5 29.10 11 25 69 43 -001 88 67 65 -17-17-17 000 22 16 10 -20.7 -24.5 29.10 12 25 71 45 000 84 64 64 -17-17-17 000 23 16 11 -20.0 -23.6 29.13 11 20 71 46 001 85103 96 -17-17-17 000 24 16 12 -18.5 -22.4 29.13 11 24 78 53 000 81 59 95 -15-16-16 000 25 16 13 -17.1 -21.1 29.15 11 24 84 58 000 80 51 99 -15-15-15 000 26 16 14 -16.0 -19.9 29.17 12 23 82 57 000 79 57112 -14-14-15 000 27 16 15 -15.8 -19.5 29.18 11 21 81 55 000 82 60113 -14-14-15 000 28 16 16 -15.8 -19.2 29.19 9 21 84 59 000 84 68119 -13-14-15 000 29 16 17 -14.4 -18.0 29.21 9 19 83 57 000 81 56107 -13-13-15 000 30 16 18 -15.0 -18.0 29.23 7 17 91 65 000 86 55120 -13-13-14 000 31 16 19 -14.1 -17.2 29.24 6 16 101 76 001 85 43119 -12-13-14 000 32 16 20 -14.3 -17.2 29.26 5 13 115 89 000 87 42116 -13-12-13 000 33 16 21 -17.7 -19.7 29.29 6 11 130 104 000 98 42110 -12-12-13 000 34 16 22 -20.1 -20.6 29.32 5 12 137 112 000 117 48100 -12-12-13 000 35 16 23 -21.6 -21.9 29.34 5 11 139 114 000 121 53101 -12-13-13 000 36 17 00 -23.2 -23.6 29.37 4 8 152 126 001 124 53 89 -12-13-13 000 37 17 01 -23.7 -24.1 29.38 4 6 168 143 001 124 52 74 -12-13-14 000 38 17 02 -24.0 -24.2 29.39 3 5 164 139 001 125 50 62 -12-13-14 000 39 17 03 -24.9 -25.0 29.40 2 5 163 138 000 126 50 60 -13-13-14 000 40 17 04 -25.9 -26.1 29.42 3 4 171 146 000 128 51 59 -13-13-14 000 41 17 05 -26.9 -27.2 29.44 3 3 183 158 000 129 51 59 -13-13-14 000 42 17 06 -27.7 -28.1 29.46 3 3 199 173 000 130 50 60 -14-13-14 000 43 17 07 -28.6 -29.5 29.47 4 4 200 175 000 131 51 61 -14-14-14 000 44 17 08 -27.9 -28.8 29.48 4 4 203 178 000 130 56 64 -15-14-14 000 45 17 09 -26.6 -27.6 29.49 3 4 219 193 000 129 71 71 -14-14-14 000 46 17 10 -25.2 -25.7 29.50 4 5 232 207 000 127 75 89 -15-14-14 000 47 17 11 -24.0 -25.0 29.51 3 7 247 221 000 118 79 97 -15-14-14 000 48 17 12 -23.0 -25.2 29.52 4 7 251 226 000 103 78 87 -15-14-14 000 49 17 13 -21.2 -23.5 29.52 4 9 251 226 001 100 73 88 -15-14-14 000 50 17 14 -19.3 -20.3 29.52 5 10 246 220 001 113 66 88 -14-14-14 000 51 17 15 -18.7 -20.4 29.52 5 10 263 238 001 104 61 63 -14-14-14 000 52 17 16 -18.4 -20.6 29.52 5 11 264 238 001 99 61 55 -14-14-14 000 53 17 17 -18.4 -19.7 29.52 5 9 262 237 001 109 76 45 -13-14-14 000 54 17 18 -18.8 -19.5 29.51 6 8 262 236 000 119 95 36 -13-14-14 000 55 17 19 -20.1 -20.8 29.50 5 8 254 229 001 121 95 33 -13-14-14 000 56 17 20 -21.8 -22.5 29.51 6 8 257 231 001 123 97 34 -13-14-14 000 57 17 21 -23.4 -24.2 29.51 6 10 251 225 001 125 98 34 -12-14-14 000 58 17 22 -25.4 -26.1 29.52 6 11 250 224 001 127 97 34 -13-14-14 000 59 17 23 -26.8 -27.6 29.51 5 11 245 220 001 129 94 33 -13-14-13 000 60 18 00 -27.2 -27.9 29.51 5 11 246 220 000 130 86 31 -13-14-14 000 61 18 01 -26.7 -27.4 29.51 4 11 248 222 -001 129 68 28 -14-14-13 000 62 18 02 -26.9 -27.7 29.50 4 8 251 226 000 129 60 24 -14-14-13 000 63 18 03 -27.5 -28.5 29.49 4 7 244 218 000 130 57 23 -15-14-13 000 64 18 04 -28.2 -29.1 29.48 5 8 244 219 000 130 57 24 -16-15-14 000 65 18 05 -27.0 -27.9 29.47 4 9 237 212 000 129 52 21 -16-14-13 000 66 18 06 -25.7 -26.6 29.47 3 8 232 207 000 128 47 17 -16-14-13 000 67 18 07 -23.8 -24.4 29.48 4 9 236 210 000 126 46 17 -17-15-13 000 68 18 08 -21.2 -21.7 29.47 5 10 232 206 001 122 46 16 -17-15-13 000 69 18 09 -19.9 -20.2 29.47 7 9 229 204 000 121 47 12 -17-15-14 000 70 18 10 -19.5 -19.8 29.46 7 8 227 202 000 121 40 8 -16-14-13 000 71 18 11 -19.1 -19.4 29.45 7 8 237 212 000 120 36 7 -16-13-12 000 72 18 12 -18.3 -18.9 29.44 7 10 240 214 000 116 34 7 -16-13-11 000 73 18 13 -17.6 -19.9 29.43 7 11 241 215 000 97 32 7 -16-12-11 000 74 18 14 -17.6 -22.5 29.43 8 15 230 204 000 72 28 7 -15-12-10 000 75 18 15 -16.7 -19.6 29.42 8 16 236 210 001 89 25 9 -14-11-10 000 76 18 16 -15.7 -17.7 29.41 8 18 244 219 003 98 22 10 -13-10 -9 000 77 18 17 -14.9 -17.1 29.41 10 20 240 214 001 95 18 10 -13-10 -9 000 78 18 18 -15.1 -16.6 29.40 10 19 242 216 000 103 14 11 -13 -9 -8 000 79 18 19 -15.6 -16.1 29.41 10 21 239 214 000 115 15 11 -12 -8 -7 000 80 18 20 -16.7 -17.1 29.40 9 19 240 215 002 116 13 10 -11 -7 -7 000 81 18 21 -18.7 -19.2 29.41 8 19 238 213 005 119 17 9 -10 -6 -7 000 82 18 22 -21.0 -21.6 29.42 7 18 230 205 009 122 22 8 -9 -6 -7 000 83 18 23 -22.7 -23.2 29.42 8 15 222 197 004 124 19 11 -7 -6 -7 000 84 19 00 -24.3 -24.9 29.42 7 11 204 178 006 126 14 11 -6 -6 -7 000 85 19 01 -25.3 -26.0 29.42 7 9 211 185 008 127 13 12 -7 -7 -7 000 86 19 02 -24.7 -25.4 29.42 7 9 200 175 008 126 12 11 -7 -7 -7 000 87 19 03 -22.4 -23.1 29.42 8 8 189 163 006 116 12 10 -8 -7 -7 000 88 19 04 -22.4 -25.6 29.42 8 12 172 146 008 86 12 10 -8 -7 -7 000 89 19 05 -23.4 -24.7 29.43 7 8 173 148 007 110 13 9 -8 -8 -7 000 90 19 06 -22.4 -25.0 29.44 7 9 169 144 009 92 13 9 -8 -8 -8 000 91 19 07 -21.2 -24.9 29.44 6 8 159 133 009 82 13 10 -8 -7 -7 000 92 19 08 -20.3 -24.7 29.45 7 11 145 119 004 73 12 10 -8 -7 -7 000 93 19 09 -19.2 -22.9 29.46 4 10 133 107 006 84 13 10 -7 -7 -7 000 94 19 10 -21.4 -21.8 29.48 2 7 187 162 008 121 13 9 -6 -7 -7 000 95 19 11 -18.2 -21.2 29.48 6 8 168 143 009 87 18 10 -7 -7 -8 000 96 19 12 -15.0 -20.0 29.49 6 14 173 147 005 64 16 11 -7 -6 -7 000 97 19 13 -12.5 -19.6 29.49 4 14 159 133 -002 53 18 9 -6 -6 -7 000 98 19 14 -13.1 -18.3 29.49 4 11 151 125 002 64 22 10 -7 -6 -7 000 99 19 15 -12.8 -17.8 29.49 6 6 189 164 004 61 23 11 -7 -7 -8 000 100 19 16 -12.1 -18.6 29.49 4 4 188 162 002 58 27 8 -7 -7 -8 000 101 19 17 -12.3 -18.8 29.50 3 3 198 173 001 62 22 7 -6 -7 -8 000 102 19 18 -13.4 -18.8 29.50 3 3 214 188 002 69 19 9 -7 -7 -8 000 103 19 19 -14.3 -19.3 29.51 2 2 231 205 001 73 20 8 -7 -7 -8 000 104 19 20 -15.5 -20.0 29.52 1 1 230 205 000 76 22 9 -7 -8 -8 000 105 19 21 -17.8 -20.2 29.52 1 1 147 121 000 94 22 9 -7 -8 -9 000 106 19 22 -20.2 -20.3 29.53 3 4 128 103 000 120 28 9 -8 -8 -9 000 107 19 23 -23.6 -24.1 29.53 4 10 117 91 001 124 42 10 -9 -9-10 000 108 20 00 -25.8 -26.7 29.53 5 7 109 84 001 127 42 11 -9 -9-10 000 109 20 01 -29.3 -29.7 29.53 5 10 78 52 000 133 43 11 -10-10-10 000 110 20 02 -29.3 -30.0 29.52 5 17 81 56 000 133 69 12 -11-12-11 000 111 20 03 -28.9 -29.7 29.52 7 18 89 63 000 132 50 12 -12-12-11 000 112 20 04 -28.2 -29.1 29.51 6 20 83 58 000 130 45 13 -13-12-12 000 113 20 05 -28.1 -28.9 29.51 6 20 91 65 000 130 48 13 -13-13-12 000 114 20 06 -26.9 -27.9 29.50 7 25 86 60 000 124 37 13 -14-13-13 000 115 20 07 -23.8 -27.1 29.49 12 37 85 59 -001 92 39 12 -15-15-14 000 116 20 08 -21.1 -25.5 29.47 18 37 86 60 -002 79 29 14 -16-15-14 000 117 20 09 -22.4 -24.6 29.47 18 28 70 44 000 103 84 12 -17-17-16 000 118 20 10 -19.7 -23.1 29.47 17 27 67 41 -001 88 54 12 -17-16-16 000 119 20 11 -19.3 -22.7 29.47 18 30 66 41 002 88 51 10 -18-16-15 000 120 20 12 -18.9 -23.1 29.46 20 30 65 39 -002 80 52 12 -18-17-17 000 * 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.