Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2026-04-30/00 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 30 00 -26.6 -29.7 29.15 5 7 259 233 000 96 44 20 -18-15-13 000 1 30 01 -28.7 -29.2 29.15 6 7 254 228 001 130 47 20 -18-15-13 000 2 30 02 -32.0 -32.8 29.15 6 9 267 241 -002 135 48 20 -18-16-13 000 3 30 03 -33.0 -33.5 29.15 4 9 277 252 001 137 40 21 -18-15-14 000 4 30 04 -34.4 -34.9 29.16 1 5 233 208 000 134 46 22 -19-17-15 000 5 30 05 -34.7 -35.8 29.15 0 3 243 218 002 127 48 22 -19-17-16 000 6 30 06 -35.9 -38.3 29.15 1 3 128 103 000 112 53 22 -20-18-16 000 7 30 07 -36.0 -38.5 29.14 2 2 116 90 000 113 62 22 -20-18-16 000 8 30 08 -34.6 -36.2 29.13 1 3 58 32 001 125 74 22 -20-18-17 000 9 30 09 -34.6 -36.8 29.14 3 3 42 16 000 118 85 20 -20-19-17 000 10 30 10 -34.6 -36.0 29.13 2 2 9 343 000 123 86 20 -21-19-16 000 11 30 11 -35.3 -36.8 29.13 2 2 13 347 000 123 92 21 -22-19-16 000 12 30 12 -35.5 -36.9 29.13 3 3 1 336 001 124 93 21 -22-19-16 000 13 30 13 -35.3 -36.6 29.14 2 2 348 323 001 123 86 20 -22-19-16 000 14 30 14 -35.3 -36.5 29.15 1 3 304 278 000 124 80 18 -21-19-16 000 15 30 15 -35.9 -37.2 29.15 1 2 260 234 000 124 81 17 -22-19-16 000 16 30 16 -36.6 -38.0 29.15 1 1 223 197 000 123 75 16 -22-19-16 000 17 30 17 -37.1 -38.6 29.15 1 1 206 180 000 123 69 16 -22-19-17 000 18 30 18 -37.6 -39.2 29.15 1 1 134 109 000 123 73 17 -23-20-17 000 19 30 19 -38.8 -40.4 29.16 3 3 96 71 000 124 87 17 -23-20-18 000 20 30 20 -40.5 -42.7 29.17 4 5 83 57 000 123 87 18 -24-21-19 000 21 30 21 -40.7 -43.1 29.19 5 7 82 57 000 120 84 18 -25-21-19 000 22 30 22 -40.7 -43.2 29.21 5 8 97 72 000 117 87 20 -26-22-19 000 23 30 23 -40.3 -43.2 29.22 4 9 104 79 000 109 90 21 -26-22-19 000 24 01 00 -39.5 -42.6 29.22 4 10 102 76 000 106 95 23 -27-23-19 000 25 01 01 -38.8 -41.8 29.23 4 12 97 71 000 109 96 30 -27-23-20 000 26 01 02 -39.1 -42.4 29.24 4 13 99 74 000 103 91 37 -26-24-21 000 27 01 03 -39.4 -42.8 29.26 4 13 102 76 000 102 76 40 -25-24-21 000 28 01 04 -38.9 -41.7 29.27 4 12 98 73 000 111 67 39 -24-24-22 000 29 01 05 -37.8 -39.7 29.28 4 11 94 68 000 124 47 39 -24-24-23 000 30 01 06 -36.6 -38.4 29.28 4 12 87 61 000 123 57 44 -24-23-23 000 31 01 07 -35.7 -38.0 29.30 3 10 94 68 000 115 49 52 -24-23-23 000 32 01 08 -35.7 -38.6 29.31 4 9 98 72 -002 108 54 55 -24-22-23 000 33 01 09 -35.6 -38.4 29.32 4 8 88 63 -001 110 47 47 -24-23-22 000 34 01 10 -35.6 -38.0 29.33 4 8 95 70 -001 115 46 46 -24-22-22 000 35 01 11 -36.1 -38.4 29.35 4 5 101 76 -001 116 56 59 -24-23-22 000 36 01 12 -36.2 -38.3 29.37 4 7 110 85 -001 121 61 56 -24-23-22 000 37 01 13 -36.8 -38.8 29.38 5 10 114 88 -003 124 53 43 -26-24-22 000 38 01 14 -37.2 -39.2 29.39 6 13 105 80 -001 124 54 47 -28-23-19 000 39 01 15 -37.5 -39.5 29.40 6 13 94 68 -001 124 56 52 -28-24-20 000 40 01 16 -38.1 -40.1 29.42 6 12 86 61 -001 124 53 50 -26-24-21 000 41 01 17 -39.3 -41.4 29.43 6 10 92 66 -001 124 49 53 -24-24-23 000 42 01 18 -40.3 -42.4 29.44 6 8 101 76 -001 124 50 53 -23-23-23 000 43 01 19 -40.8 -43.0 29.45 6 6 99 74 -002 124 49 51 -24-22-23 000 44 01 20 -41.2 -43.5 29.47 5 6 103 78 -002 123 62 60 -25-23-22 000 45 01 21 -40.4 -42.5 29.48 5 10 90 65 000 124 49 62 -26-23-22 000 46 01 22 -40.3 -42.1 29.50 3 9 92 67 -003 124 59 64 -26-25-23 000 47 01 23 -40.4 -42.2 29.51 2 6 95 69 -001 124 67 67 -27-25-23 000 48 02 00 -39.3 -41.7 29.52 2 4 119 93 -001 116 63 77 -27-24-22 000 49 02 01 -38.9 -42.1 29.53 2 3 112 86 000 105 59 89 -28-23-22 000 50 02 02 -38.7 -42.2 29.54 2 4 104 79 -001 100 55 97 -27-23-22 000 51 02 03 -38.2 -41.8 29.56 2 4 112 86 000 100 56101 -26-23-23 000 52 02 04 -38.3 -41.4 29.56 3 3 105 79 -001 105 64103 -26-23-23 000 53 02 05 -38.6 -41.3 29.57 2 2 114 88 -001 110 70104 -25-23-23 000 54 02 06 -38.8 -41.1 29.58 1 1 118 92 000 114 71103 -25-24-23 000 55 02 07 -38.6 -40.4 29.59 1 1 151 126 000 120 75102 -25-24-23 000 56 02 08 -38.5 -40.1 29.59 1 1 162 136 000 124 76101 -25-24-24 000 57 02 09 -38.6 -40.2 29.60 1 1 222 196 000 124 69 99 -25-24-24 000 58 02 10 -38.9 -40.5 29.61 2 2 248 222 000 123 67 98 -25-24-24 000 59 02 11 -38.7 -40.3 29.61 2 2 247 221 000 124 73 97 -25-24-24 000 60 02 12 -38.7 -40.3 29.61 3 3 241 215 000 124 79 97 -25-24-24 000 61 02 13 -39.2 -40.8 29.62 3 3 237 212 000 124 78 96 -25-24-23 000 62 02 14 -39.8 -41.7 29.62 4 4 233 208 000 123 76 96 -25-24-23 000 63 02 15 -39.8 -41.7 29.62 4 4 230 205 000 124 75 96 -25-24-23 000 64 02 16 -40.0 -42.1 29.63 5 5 231 205 000 123 74 96 -25-24-23 000 65 02 17 -40.5 -42.6 29.62 5 5 229 204 000 123 73 96 -25-24-23 000 66 02 18 -40.6 -42.8 29.62 4 4 228 202 000 120 74 95 -24-24-23 000 67 02 19 -40.4 -42.6 29.61 4 4 232 206 001 121 74 94 -24-23-23 000 68 02 20 -40.5 -42.6 29.62 4 4 236 210 000 123 73 95 -24-23-23 000 69 02 21 -40.2 -42.2 29.61 4 4 228 203 000 123 70 96 -24-23-23 000 70 02 22 -40.3 -42.3 29.61 4 4 232 206 000 122 70 96 -24-23-23 000 71 02 23 -40.3 -42.4 29.61 4 4 238 212 000 122 71 96 -24-23-23 000 72 03 00 -40.5 -42.5 29.61 4 4 235 209 000 123 70 94 -24-23-23 000 73 03 01 -40.4 -42.5 29.61 4 4 224 199 000 122 70 92 -24-23-23 000 74 03 02 -39.9 -41.8 29.60 3 3 224 199 000 122 69 91 -24-23-23 000 75 03 03 -40.0 -42.1 29.59 3 3 241 215 000 119 69 89 -24-23-23 000 76 03 04 -39.9 -42.5 29.59 4 4 241 215 000 112 69 88 -24-23-23 000 77 03 05 -39.0 -42.1 29.58 3 3 235 210 000 104 69 89 -24-23-23 000 78 03 06 -38.5 -42.0 29.58 3 3 236 210 000 100 71 89 -25-23-23 000 79 03 07 -38.0 -40.3 29.58 2 3 234 208 000 114 73 89 -25-23-23 000 80 03 08 -37.8 -39.6 29.58 1 2 216 190 000 118 75 89 -25-23-22 000 * 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.