Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2026-06-10/12 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 -24.0 -26.7 29.03 8 12 251 225 000 100 79 68 -19-17-15 000 1 10 13 -26.8 -27.5 29.04 6 10 252 226 000 128 82 65 -19-17-15 000 2 10 14 -28.2 -29.1 29.04 6 11 272 247 -001 130 63 60 -20-17-15 000 3 10 15 -29.5 -29.7 29.05 1 7 284 258 003 133 72 57 -20-19-16 000 4 10 16 -29.8 -30.6 29.07 2 2 28 3 000 133 72 54 -21-20-17 000 5 10 17 -30.3 -30.9 29.08 3 3 310 284 003 133 61 52 -21-20-18 000 6 10 18 -31.8 -32.8 29.06 4 4 182 157 002 132 54 47 -21-20-18 000 7 10 19 -35.8 -38.2 29.07 4 4 123 97 001 118 51 45 -22-19-17 000 8 10 20 -36.6 -38.4 29.05 1 3 75 50 002 121 49 45 -22-19-17 000 9 10 21 -36.3 -37.9 29.08 2 4 57 31 000 123 49 42 -22-19-17 000 10 10 22 -36.6 -38.2 29.06 2 4 68 43 000 123 56 42 -23-20-18 000 11 10 23 -37.6 -39.7 29.09 4 6 92 66 001 123 51 44 -23-21-19 000 12 11 00 -39.2 -41.4 29.09 5 8 98 72 001 121 38 47 -22-21-20 000 13 11 01 -40.0 -42.6 29.08 5 10 106 81 001 116 40 52 -22-21-20 000 14 11 02 -40.5 -44.1 29.08 6 11 104 79 001 103 44 60 -22-21-19 000 15 11 03 -40.9 -43.7 29.09 5 11 92 66 001 112 42 67 -23-21-19 000 16 11 04 -41.2 -44.9 29.09 5 11 96 70 000 100 51 73 -24-22-20 000 17 11 05 -41.0 -44.0 29.09 6 14 102 76 002 110 46 76 -25-22-19 000 18 11 06 -40.2 -42.5 29.09 6 16 96 70 000 121 38 82 -24-21-20 000 19 11 07 -38.7 -40.7 29.09 7 21 93 68 000 121 41 89 -24-21-20 000 20 11 08 -35.2 -37.0 29.08 10 23 86 60 000 120 54 97 -23-20-20 000 21 11 09 -33.5 -35.5 29.08 11 24 80 55 -001 116 41105 -23-20-20 000 22 11 10 -32.3 -34.4 29.08 13 26 78 52 000 113 40109 -24-20-19 000 23 11 11 -31.6 -33.7 29.09 16 29 74 49 000 113 45113 -24-21-19 000 24 11 12 -32.5 -35.3 29.10 15 26 79 54 -001 104 52106 -25-21-20 000 25 11 13 -33.5 -36.0 29.12 15 25 79 53 -001 109 61 98 -28-23-20 000 26 11 14 -31.5 -34.2 29.11 15 28 73 47 000 105 72 98 -28-23-20 000 27 11 15 -30.7 -33.3 29.11 15 29 78 52 -001 105 78 99 -26-23-21 000 28 11 16 -29.1 -32.4 29.10 16 30 75 50 000 95 83100 -25-23-21 000 29 11 17 -29.1 -31.7 29.10 18 32 67 42 000 103 74103 -25-23-22 000 30 11 18 -28.6 -31.3 29.10 17 29 64 39 000 102 76104 -25-23-22 001 31 11 19 -28.3 -31.5 29.11 16 27 69 43 -001 97 72103 -25-23-22 002 32 11 20 -28.6 -31.9 29.10 16 26 80 55 -002 96 76102 -25-22-21 003 33 11 21 -28.3 -31.5 29.10 18 27 79 53 -001 97 86102 -26-22-21 007 34 11 22 -27.6 -30.7 29.09 17 27 76 50 -002 97 92102 -25-22-21 013 35 11 23 -26.2 -29.3 29.07 18 30 74 49 -002 97 94102 -23-22-20 016 36 12 00 -25.3 -28.2 29.07 19 30 73 47 -002 97 96102 -23-21-20 014 37 12 01 -24.9 -27.9 29.06 19 30 71 45 -002 97 97103 -24-21-20 016 38 12 02 -25.0 -27.9 29.06 18 29 74 49 -004 97 97103 -24-21-20 019 39 12 03 -25.3 -28.3 29.04 17 27 77 51 -005 97 97103 -23-21-20 019 40 12 04 -25.2 -28.1 29.03 17 26 76 50 -005 97 98104 -23-21-20 016 41 12 05 -25.1 -28.0 29.03 16 25 76 50 -003 97 98103 -23-20-20 014 42 12 06 -25.1 -28.0 29.03 15 23 76 50 -001 97 99104 -22-20-20 016 43 12 07 -25.1 -28.0 29.02 14 23 77 51 -003 97 99105 -21-20-20 015 44 12 08 -25.3 -28.2 29.01 13 20 75 50 -002 97100105 -21-20-20 015 45 12 09 -25.1 -27.9 29.00 13 22 75 50 -002 99100105 -22-20-20 013 46 12 10 -25.2 -27.8 29.00 13 22 80 54 -001 102101106 -22-20-20 009 47 12 11 -25.9 -28.4 28.99 11 20 84 58 -001 104101105 -22-20-20 006 48 12 12 -27.1 -29.4 28.98 10 18 91 65 000 106101106 -21-20-20 004 49 12 13 -27.4 -29.7 28.97 9 15 88 62 000 106102105 -21-20-20 004 50 12 14 -26.8 -29.2 28.97 8 15 86 60 000 105102105 -21-20-20 002 51 12 15 -26.3 -29.0 28.96 7 13 88 62 000 101102104 -21-20-20 005 52 12 16 -26.4 -29.2 28.96 7 10 85 59 000 100103104 -21-20-20 013 53 12 17 -26.7 -29.6 28.95 5 10 86 60 000 99103105 -21-20-20 010 54 12 18 -27.0 -29.9 28.95 6 10 88 63 001 99102106 -21-20-20 010 55 12 19 -27.0 -29.9 28.94 5 10 92 66 000 99102107 -21-20-20 008 56 12 20 -27.9 -30.9 28.94 5 8 114 88 000 100102107 -21-20-20 005 57 12 21 -28.5 -31.5 28.94 4 8 114 89 001 99103106 -22-20-20 004 58 12 22 -28.7 -31.7 28.93 3 7 112 86 001 99102103 -22-20-21 003 59 12 23 -29.5 -32.6 28.94 3 6 119 93 001 98100101 -22-20-21 002 60 13 00 -30.8 -33.9 28.94 4 4 134 108 003 99102101 -22-21-21 001 61 13 01 -33.0 -35.4 28.94 3 4 115 90 002 111103101 -22-21-20 001 62 13 02 -33.0 -34.2 28.95 3 4 96 70 001 125101 96 -22-21-20 000 63 13 03 -34.3 -35.5 28.95 2 3 109 84 002 124104 92 -22-22-20 000 64 13 04 -34.8 -36.1 28.96 1 2 140 114 001 124110 90 -23-23-20 000 65 13 05 -34.6 -35.8 28.97 1 2 209 183 001 124119 86 -24-23-21 000 66 13 06 -34.0 -35.1 28.98 1 4 242 216 001 124121 87 -24-23-21 000 67 13 07 -33.5 -34.8 28.98 1 4 77 52 000 123124 83 -25-23-21 000 68 13 08 -33.8 -35.7 28.99 3 3 63 38 000 122126 79 -24-24-21 001 69 13 09 -33.6 -35.6 28.99 3 3 39 13 000 115128 78 -24-25-21 000 70 13 10 -33.7 -37.0 29.00 1 2 345 320 000 101129 81 -24-26-21 000 71 13 11 -33.9 -37.5 29.01 0 1 305 279 000 96129 84 -25-26-22 001 72 13 12 -34.5 -38.2 29.02 2 2 108 82 000 96129 84 -25-26-22 001 73 13 13 -36.6 -40.4 29.03 4 4 100 75 000 96123 79 -25-26-22 000 74 13 14 -37.0 -41.0 29.04 3 4 99 73 000 94118 76 -25-26-23 000 75 13 15 -36.7 -40.6 29.05 2 4 103 77 000 96118 75 -25-26-24 000 76 13 16 -36.2 -40.1 29.06 3 5 105 80 000 96117 72 -25-26-25 000 77 13 17 -36.1 -39.9 29.07 3 5 108 83 000 96115 72 -26-26-25 000 78 13 18 -36.4 -40.2 29.08 4 7 108 83 000 95114 72 -26-26-26 000 79 13 19 -37.1 -40.5 29.09 5 9 104 79 000 101111 73 -26-26-26 000 80 13 20 -37.8 -40.6 29.10 6 9 99 74 001 112 97 73 -26-26-27 000 81 13 21 -38.3 -40.4 29.11 5 10 81 55 000 124 77 74 -27-26-27 000 82 13 22 -38.6 -40.7 29.13 5 9 91 66 001 124 90 76 -27-26-25 000 83 13 23 -39.7 -42.0 29.14 5 8 110 85 000 124111 77 -27-27-26 000 84 14 00 -40.1 -42.4 29.16 5 8 109 83 000 124105 78 -27-26-26 000 85 14 01 -40.1 -42.3 29.17 4 12 110 85 000 124103 80 -27-26-26 000 86 14 02 -39.8 -41.9 29.17 5 12 133 108 001 124 92 84 -27-27-25 000 87 14 03 -39.5 -41.5 29.18 6 13 123 97 001 124 69 85 -27-25-25 000 88 14 04 -39.1 -41.2 29.19 6 15 123 97 001 124 79 83 -27-26-25 000 89 14 05 -38.6 -40.6 29.20 8 19 114 88 000 124 82 74 -28-26-25 000 90 14 06 -38.3 -40.3 29.20 8 17 111 85 000 124101 71 -29-27-26 000 91 14 07 -38.6 -40.7 29.20 7 16 106 81 001 124109 70 -28-27-26 000 92 14 08 -39.4 -41.5 29.20 6 14 121 96 000 124 98 69 -28-27-26 000 93 14 09 -39.2 -41.2 29.20 7 15 125 100 001 124 91 70 -28-26-26 000 94 14 10 -38.4 -40.3 29.20 8 16 115 90 000 124 94 70 -28-26-26 000 95 14 11 -37.9 -39.9 29.20 8 18 110 85 000 124105 68 -28-26-25 000 96 14 12 -37.7 -39.6 29.21 7 17 108 83 000 124110 70 -28-27-25 000 97 14 13 -36.8 -38.7 29.21 7 17 110 85 000 123107 71 -27-27-25 000 98 14 14 -35.6 -37.3 29.20 8 17 110 84 000 124100 70 -26-27-25 000 99 14 15 -35.0 -36.7 29.20 7 16 110 85 000 124 99 72 -26-27-25 000 100 14 16 -34.9 -36.7 29.19 7 14 109 84 000 124 95 70 -26-26-25 000 101 14 17 -35.0 -36.8 29.18 6 14 113 88 000 124 92 71 -26-26-26 000 102 14 18 -35.5 -37.3 29.17 7 13 112 86 000 124 87 73 -26-25-25 000 103 14 19 -35.8 -37.5 29.16 7 13 114 88 000 124 82 72 -25-25-25 000 104 14 20 -36.0 -37.8 29.15 7 13 113 87 000 124 88 71 -26-25-25 000 105 14 21 -36.1 -37.9 29.14 6 12 115 89 000 124 94 71 -26-24-24 000 106 14 22 -36.6 -38.6 29.12 5 10 115 90 000 124 93 72 -27-24-24 000 107 14 23 -37.3 -39.3 29.10 5 10 124 98 000 124 92 71 -27-24-23 000 108 15 00 -37.6 -39.6 29.09 5 8 131 105 000 124 91 71 -27-24-23 000 109 15 01 -37.3 -39.1 29.06 5 7 134 108 000 124 86 70 -26-24-23 000 110 15 02 -36.8 -38.5 29.04 5 7 156 131 000 124 84 70 -26-23-23 000 111 15 03 -35.9 -37.5 29.01 5 8 163 137 000 124 81 67 -26-23-22 000 112 15 04 -36.1 -37.7 28.99 5 6 179 154 000 124 79 64 -25-23-22 000 113 15 05 -36.8 -38.6 28.96 6 7 192 166 000 124 74 62 -24-22-22 000 114 15 06 -35.9 -37.4 28.93 6 7 192 166 000 127 62 61 -23-22-22 000 115 15 07 -36.0 -37.6 28.91 6 7 204 178 000 127 54 58 -22-22-21 000 116 15 08 -35.9 -37.4 28.88 6 7 213 188 000 128 56 56 -21-21-21 000 117 15 09 -36.1 -37.6 28.86 6 8 217 191 000 129 54 55 -20-21-21 000 118 15 10 -34.7 -36.3 28.84 6 8 216 190 000 127 47 54 -19-20-20 000 119 15 11 -32.9 -34.4 28.82 5 9 215 189 000 124 42 52 -19-20-20 000 120 15 12 -32.2 -33.8 28.80 5 8 222 197 000 124 39 51 -18-19-20 000 * 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.