Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2026-11-11/12 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 11 12 -5.6 -7.1 28.86 10 10 73 48 000 89 96 95 -7 -8 -9 000 1 11 13 -5.1 -7.2 28.86 13 16 68 43 000 87100105 -6 -8 -9 003 2 11 14 -5.2 -7.6 28.86 14 17 65 40 000 85 98109 -6 -8 -9 002 3 11 15 -5.2 -7.8 28.86 14 17 65 39 000 83 98103 -7 -8-10 002 4 11 16 -5.3 -8.0 28.86 15 18 61 36 000 82 97104 -7 -8-10 001 5 11 17 -5.5 -8.2 28.88 13 17 59 33 000 82 94102 -7 -8-10 000 6 11 18 -5.9 -8.1 28.90 11 17 60 35 000 86 96 97 -7 -8-10 000 7 11 19 -6.3 -8.4 28.89 10 17 61 36 001 88 96 94 -7 -8-10 000 8 11 20 -7.1 -8.8 28.88 9 17 65 39 001 91 97 93 -7 -9-10 000 9 11 21 -8.1 -9.4 28.89 8 16 71 45 000 97 94 91 -7 -9-10 000 10 11 22 -9.1 -9.7 28.91 9 17 79 53 000 104 92 91 -7 -9-10 000 11 11 23 -9.5 -10.0 28.93 9 18 76 51 000 106 91 97 -8 -9-10 000 12 12 00 -9.6 -10.2 28.93 10 19 74 48 000 106 96101 -8 -9-10 001 13 12 01 -10.0 -10.6 28.95 11 20 78 52 000 106 96102 -8 -9-10 004 14 12 02 -10.6 -11.2 28.97 12 21 80 55 000 106 96103 -8 -9-10 005 15 12 03 -10.9 -11.3 28.99 13 23 81 55 000 109 95105 -8 -9-10 004 16 12 04 -11.5 -11.8 29.00 13 23 80 55 000 111 90 92 -8 -9-10 000 17 12 05 -11.3 -11.6 29.03 14 24 79 53 000 111 93 84 -9 -9-10 000 18 12 06 -10.6 -11.6 29.04 13 27 68 43 000 102 94106 -9 -9-10 000 19 12 07 -10.3 -12.2 29.04 11 19 65 39 000 94 77114 -9 -9-10 000 20 12 08 -9.6 -12.3 29.05 11 22 64 38 000 85 69111 -9 -9-10 000 21 12 09 -10.0 -12.8 29.06 10 22 72 47 000 85 74100 -9 -9-10 000 22 12 10 -9.5 -12.0 29.06 11 16 69 43 001 87 82 91 -9 -9 -9 000 23 12 11 -9.0 -11.1 29.07 8 11 64 38 000 91 86 82 -8 -9 -9 000 24 12 12 -8.0 -10.1 29.07 7 10 64 38 000 90 85 69 -8 -8 -9 000 25 12 13 -7.2 -9.5 29.07 6 10 66 40 000 87 78 54 -7 -8 -8 000 26 12 14 -6.6 -9.0 29.08 5 6 97 72 001 87 71 44 -7 -7 -8 000 27 12 15 -6.3 -9.1 29.08 5 12 111 85 000 84 49 57 -6 -6 -7 000 28 12 16 -6.0 -8.9 29.08 4 9 115 89 000 81 39 54 -6 -5 -6 000 29 12 17 -5.8 -8.3 29.06 4 4 139 113 000 84 30 52 -5 -4 -5 000 30 12 18 -6.2 -8.0 29.06 5 6 176 150 002 89 28 54 -3 -4 -5 000 31 12 19 -6.8 -8.9 29.06 7 9 186 160 002 87 31 51 -3 -4 -5 000 32 12 20 -7.6 -9.6 29.06 8 11 193 167 000 89 34 45 -2 -3 -4 000 33 12 21 -8.5 -9.8 29.05 8 10 190 164 -001 97 33 33 -2 -3 -4 000 34 12 22 -10.1 -11.6 29.04 7 11 177 152 000 95 32 32 -2 -3 -4 000 35 12 23 -11.7 -12.9 29.04 7 14 160 134 -004 100 40 33 -3 -4 -4 000 36 13 00 -12.6 -13.8 29.04 8 16 136 110 001 102 60 38 -5 -4 -4 000 37 13 01 -14.1 -14.5 29.04 8 17 105 79 001 113 31 42 -4 -3 -5 000 38 13 02 -13.3 -13.7 29.05 9 24 99 73 -003 113 71 82 -4 -4 -5 000 39 13 03 -9.3 -9.6 29.05 10 22 98 73 002 109 81 96 -4 -5 -6 002 40 13 04 -7.8 -8.0 29.05 9 20 93 68 003 107 77 89 -5 -5 -6 000 41 13 05 -8.3 -8.5 29.04 10 21 84 58 001 108 80 91 -6 -6 -7 000 42 13 06 -8.6 -8.9 29.04 7 17 94 69 000 108 86105 -6 -6 -7 000 43 13 07 -8.7 -8.9 29.04 7 15 93 67 000 108 90102 -6 -7 -8 000 44 13 08 -8.5 -9.2 29.03 6 16 92 66 000 103 87100 -6 -7 -8 000 45 13 09 -6.3 -7.3 29.02 7 13 91 65 000 98 95102 -6 -7 -8 000 46 13 10 -5.5 -7.1 29.01 8 12 81 56 000 92 94106 -6 -7 -8 001 47 13 11 -6.0 -7.5 29.01 8 13 75 49 000 93 97104 -7 -7 -8 001 48 13 12 -5.3 -6.9 29.01 9 13 82 56 -001 91 94106 -6 -7 -8 000 49 13 13 -5.0 -6.7 29.00 10 14 87 62 -001 90 92 97 -6 -7 -8 002 50 13 14 -4.4 -6.3 28.99 12 17 87 61 000 88101100 -6 -7 -8 003 51 13 15 -4.0 -6.0 28.99 13 17 93 67 -001 87100108 -5 -7 -8 009 52 13 16 -3.5 -5.2 28.98 14 18 79 53 000 89 99101 -5 -6 -7 015 53 13 17 -3.5 -5.1 28.97 13 19 71 46 000 90101105 -5 -6 -7 016 54 13 18 -3.3 -4.7 28.97 12 17 71 45 000 91101104 -4 -6 -7 018 55 13 19 -3.3 -4.6 28.96 11 17 71 45 000 92102104 -4 -6 -7 019 56 13 20 -3.5 -4.7 28.95 13 18 67 41 000 93103105 -4 -6 -7 018 57 13 21 -3.6 -4.6 28.95 11 16 65 39 -002 95104109 -4 -6 -7 026 58 13 22 -3.6 -4.4 28.94 10 18 75 49 000 96105110 -4 -6 -7 058 59 13 23 -3.7 -4.7 28.94 12 20 70 44 000 95106110 -4 -6 -7 050 60 14 00 -3.8 -4.6 28.93 10 18 70 45 000 97106110 -4 -5 -6 036 61 14 01 -4.1 -4.8 28.92 7 11 45 19 000 98106 99 -5 -6 -7 064 62 14 02 -5.2 -5.8 28.93 4 5 319 293 000 100 96109 -5 -6 -7 006 63 14 03 -5.7 -6.3 28.93 3 9 16 350 -001 101 97101 -5 -7 -8 020 64 14 04 -6.0 -6.3 28.95 8 12 44 18 -001 103102 99 -6 -7 -8 002 65 14 05 -6.3 -6.8 28.95 9 13 65 39 001 103 88101 -6 -7 -8 001 66 14 06 -6.2 -7.0 28.95 8 13 69 44 -001 99 95 92 -6 -7 -8 002 67 14 07 -5.8 -6.7 28.94 6 11 72 47 000 98 85100 -6 -7 -8 001 68 14 08 -5.3 -6.4 28.94 6 10 74 48 000 96 82 90 -6 -6 -8 001 69 14 09 -4.9 -6.0 28.94 6 9 88 63 000 96 88 97 -6 -7 -8 000 70 14 10 -4.4 -5.6 28.93 6 9 83 57 000 94 95109 -5 -7 -8 010 71 14 11 -4.0 -5.3 28.92 9 11 79 53 000 93107111 -5 -7 -8 018 72 14 12 -3.8 -5.3 28.91 11 14 77 52 000 91102107 -5 -6 -7 011 73 14 13 -3.5 -5.2 28.91 12 14 80 55 000 89 97111 -5 -6 -7 003 74 14 14 -3.4 -5.3 28.90 12 14 75 50 001 87102101 -5 -6 -7 004 75 14 15 -3.3 -5.5 28.90 12 13 77 52 000 84 99 87 -4 -6 -7 000 76 14 16 -3.4 -5.4 28.89 10 12 81 55 000 87100 91 -5 -6 -7 000 77 14 17 -3.4 -5.3 28.88 8 11 77 51 000 88 93 98 -5 -6 -7 002 78 14 18 -3.5 -5.5 28.88 6 10 79 53 000 86 83 98 -4 -6 -7 001 79 14 19 -4.3 -5.8 28.87 4 8 90 65 001 88 80 89 -5 -6 -7 000 80 14 20 -5.5 -6.8 28.86 5 8 113 88 000 92 81 91 -5 -6 -7 000 81 14 21 -6.8 -7.6 28.86 5 8 122 96 000 100 77 91 -5 -6 -7 000 82 14 22 -8.0 -8.2 28.86 4 8 138 112 000 106 79 92 -5 -6 -7 000 83 14 23 -9.8 -10.2 28.85 5 7 154 129 000 109 85 89 -5 -6 -7 000 84 15 00 -11.6 -12.0 28.85 3 5 161 135 001 111 86 85 -5 -6 -7 000 85 15 01 -12.7 -13.3 28.85 3 5 155 129 001 112 85 83 -4 -6 -7 000 86 15 02 -13.1 -13.7 28.85 3 6 138 113 000 113 84 81 -4 -6 -7 000 87 15 03 -14.3 -14.9 28.84 4 9 126 101 000 114 80 79 -4 -6 -7 000 88 15 04 -15.6 -16.1 28.84 4 11 119 93 000 116 78 79 -5 -6 -7 000 89 15 05 -16.3 -16.8 28.84 4 11 115 89 001 117 82 81 -5 -6 -7 000 90 15 06 -16.5 -16.8 28.84 3 11 123 97 001 117 84 87 -6 -5 -7 000 91 15 07 -16.1 -16.3 28.84 2 9 133 107 000 116 82 91 -6 -5 -7 000 92 15 08 -14.9 -15.4 28.85 2 6 164 138 000 112 81 91 -6 -6 -6 000 93 15 09 -12.9 -14.2 28.85 2 5 171 145 001 102 76 85 -6 -6 -7 000 94 15 10 -11.0 -13.0 28.86 1 4 198 173 001 93 68 79 -6 -6 -6 000 95 15 11 -9.3 -12.3 28.86 2 4 263 237 003 84 65 74 -6 -6 -6 000 96 15 12 -8.2 -11.9 28.87 2 2 257 232 002 79 60 72 -6 -6 -6 000 97 15 13 -7.3 -10.4 28.88 2 2 256 230 000 82 58 67 -6 -5 -5 000 98 15 14 -6.3 -9.2 28.88 3 3 249 223 000 83 57 60 -5 -5 -5 000 99 15 15 -5.6 -8.9 28.89 3 4 226 201 001 79 55 55 -5 -5 -5 000 100 15 16 -5.1 -7.8 28.90 3 5 230 205 001 83 50 53 -5 -4 -4 000 101 15 17 -4.9 -7.4 28.91 5 7 234 209 001 83 44 50 -4 -4 -4 000 102 15 18 -5.2 -7.2 28.92 5 8 244 219 001 86 39 47 -4 -4 -4 000 103 15 19 -5.9 -7.7 28.93 6 8 248 222 000 89 37 42 -4 -3 -3 000 104 15 20 -7.0 -8.3 28.94 6 9 245 220 000 94 37 39 -3 -3 -3 000 105 15 21 -8.2 -9.0 28.95 6 11 243 217 001 102 36 39 -2 -3 -3 000 106 15 22 -9.4 -9.7 28.95 7 10 243 217 000 108 36 40 -2 -3 -3 000 107 15 23 -11.1 -11.5 28.96 6 11 245 220 003 111 37 40 -2 -2 -3 000 108 16 00 -14.2 -14.5 28.96 5 10 247 222 000 114 40 39 -2 -2 -2 000 109 16 01 -16.6 -16.9 28.97 4 9 240 214 001 117 51 37 -2 -2 -2 000 110 16 02 -18.2 -18.6 28.97 4 8 230 204 002 119 52 35 -3 -2 -3 000 111 16 03 -19.2 -19.7 28.97 4 6 232 206 001 120 46 30 -3 -2 -3 000 112 16 04 -19.2 -19.8 28.97 4 5 243 217 001 120 45 26 -3 -2 -3 000 113 16 05 -19.1 -19.5 28.96 4 5 249 224 001 120 39 24 -3 -2 -3 000 114 16 06 -18.8 -19.1 28.95 4 5 254 229 001 120 41 24 -4 -2 -3 000 115 16 07 -18.2 -18.4 28.94 3 5 266 241 000 119 46 24 -4 -3 -3 000 116 16 08 -16.3 -16.5 28.94 3 4 279 253 000 117 51 22 -4 -3 -3 000 117 16 09 -14.0 -14.2 28.93 4 5 274 249 000 114 54 21 -4 -3 -3 000 118 16 10 -12.3 -12.4 28.92 4 4 264 238 000 112 54 20 -5 -3 -3 000 119 16 11 -10.5 -10.6 28.91 4 5 251 226 000 111 45 22 -6 -4 -3 000 120 16 12 -9.2 -9.2 28.90 3 4 249 224 000 109 32 23 -6 -4 -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.