Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2025-11-11/12 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 -17.6 -21.6 29.41 5 5 86 60 000 82 72 63 -18-18-17 000 1 11 13 -17.0 -20.6 29.40 5 7 89 63 000 84 71 62 -18-17-17 000 2 11 14 -16.5 -20.0 29.39 5 7 85 59 000 85 67 59 -18-17-17 000 3 11 15 -16.1 -19.6 29.37 4 7 89 64 000 85 65 57 -17-17-17 000 4 11 16 -15.7 -19.4 29.36 4 7 101 75 000 83 66 56 -17-16-16 000 5 11 17 -15.4 -19.1 29.36 4 7 100 75 000 83 69 56 -16-16-16 000 6 11 18 -15.5 -18.7 29.33 3 6 109 83 000 85 71 56 -16-16-16 000 7 11 19 -16.1 -19.0 29.30 2 5 120 94 000 89 72 57 -16-16-16 000 8 11 20 -17.0 -19.2 29.30 3 4 134 108 000 96 72 57 -16-15-16 000 9 11 21 -18.3 -19.2 29.27 3 5 139 114 000 110 72 56 -15-15-16 000 10 11 22 -19.7 -19.8 29.26 3 4 150 125 000 120 71 54 -15-15-15 000 11 11 23 -22.3 -22.6 29.23 3 3 167 141 000 123 71 54 -15-15-15 000 12 12 00 -24.9 -25.5 29.22 3 3 185 160 000 126 70 52 -15-15-15 000 13 12 01 -26.8 -27.4 29.20 3 3 187 162 000 129 68 51 -15-15-15 000 14 12 02 -28.2 -28.9 29.19 3 3 181 156 000 131 67 50 -15-15-15 000 15 12 03 -29.0 -29.5 29.17 3 4 171 145 000 132 67 48 -15-15-15 000 16 12 04 -28.4 -28.8 29.16 3 5 161 135 000 131 67 47 -15-15-15 000 17 12 05 -27.6 -28.0 29.15 3 6 160 134 000 130 70 46 -14-15-15 000 18 12 06 -27.1 -27.8 29.13 3 5 164 139 000 129 77 45 -14-15-15 000 19 12 07 -25.8 -26.7 29.11 4 4 168 143 001 128 84 45 -14-15-15 000 20 12 08 -23.8 -24.8 29.10 3 3 172 147 001 125 84 44 -14-15-15 000 21 12 09 -22.1 -22.4 29.09 2 2 179 154 000 124 78 43 -14-15-15 000 22 12 10 -20.6 -22.1 29.08 2 2 203 177 001 107 74 43 -14-14-15 000 23 12 11 -19.0 -21.3 29.08 2 3 230 205 001 98 73 41 -14-14-14 000 24 12 12 -17.1 -19.4 29.08 2 4 237 211 000 96 70 40 -14-14-14 000 25 12 13 -15.4 -19.0 29.07 3 4 232 207 000 83 66 38 -13-14-14 000 26 12 14 -14.4 -18.1 29.07 4 4 232 207 000 82 61 37 -13-13-14 000 27 12 15 -13.9 -17.5 29.07 4 5 234 209 001 82 57 36 -13-13-14 000 28 12 16 -13.4 -17.0 29.07 4 5 234 208 000 82 52 35 -13-13-13 000 29 12 17 -13.3 -16.8 29.06 3 5 242 217 000 82 48 34 -13-12-13 000 30 12 18 -13.8 -16.7 29.06 3 5 258 233 000 84 46 33 -12-12-13 000 31 12 19 -14.9 -17.6 29.07 4 5 277 251 000 88 45 33 -12-12-13 000 32 12 20 -16.2 -18.4 29.07 5 6 277 251 000 95 46 32 -12-12-13 000 33 12 21 -17.6 -18.8 29.08 5 6 274 248 000 107 50 31 -12-12-12 000 34 12 22 -18.6 -19.0 29.09 5 6 274 248 000 118 54 31 -12-12-12 000 35 12 23 -21.0 -21.6 29.10 4 5 273 247 000 121 54 30 -11-12-12 000 36 13 00 -24.0 -24.7 29.12 2 4 255 230 000 126 52 30 -11-12-13 000 37 13 01 -26.3 -26.6 29.13 1 1 202 177 000 129 51 30 -11-12-13 000 38 13 02 -27.2 -27.5 29.13 1 2 152 127 000 130 50 30 -11-12-13 000 39 13 03 -27.4 -28.0 29.14 2 4 128 102 000 130 51 30 -12-12-13 000 40 13 04 -28.1 -29.1 29.14 3 6 105 80 000 131 51 31 -12-12-13 000 41 13 05 -28.6 -28.9 29.16 3 7 88 63 000 132 50 31 -12-12-13 000 42 13 06 -27.7 -27.9 29.18 3 9 87 62 000 131 52 31 -13-12-13 000 43 13 07 -27.0 -27.7 29.18 3 11 109 83 000 125 58 30 -13-12-13 000 44 13 08 -25.4 -25.7 29.19 3 9 114 88 000 128 60 30 -12-12-13 000 45 13 09 -22.8 -23.0 29.20 5 5 80 55 000 125 62 30 -12-12-12 000 46 13 10 -20.4 -20.6 29.21 4 7 72 47 000 122 62 31 -12-12-12 000 47 13 11 -17.8 -19.0 29.22 2 6 76 50 000 108 67 32 -12-12-12 000 48 13 12 -15.5 -17.3 29.23 2 4 91 66 000 99 76 32 -12-11-12 000 49 13 13 -13.9 -16.0 29.23 1 2 108 83 000 95 68 31 -11-11-11 000 50 13 14 -12.4 -15.7 29.24 1 1 107 81 000 85 75 29 -11-11-11 000 51 13 15 -11.5 -14.8 29.25 1 6 115 90 000 84 74 24 -11-11-10 000 52 13 16 -10.9 -14.5 29.25 3 6 113 87 000 81 71 19 -11-11-10 000 53 13 17 -10.4 -13.9 29.26 4 7 94 69 000 80 57 20 -11-10-10 000 54 13 18 -10.3 -13.2 29.27 5 6 83 58 000 85 37 23 -11 -9-10 000 55 13 19 -10.7 -12.9 29.27 5 7 76 51 000 91 27 32 -11 -9-10 000 56 13 20 -11.1 -13.2 29.28 5 7 73 47 000 93 30 48 -9 -9 -9 000 57 13 21 -11.4 -13.2 29.30 5 7 77 51 000 95 29 74 -9 -9 -9 000 58 13 22 -11.7 -13.3 29.31 5 7 82 57 000 97 30 91 -9 -9 -9 000 59 13 23 -12.0 -13.4 29.32 5 7 84 58 000 100 28 96 -9 -9 -9 000 60 14 00 -12.4 -13.7 29.33 5 8 91 65 000 101 25 96 -9 -9 -9 000 61 14 01 -12.6 -14.0 29.34 5 9 99 73 000 101 52 94 -9 -9 -9 000 62 14 02 -12.9 -14.1 29.34 6 10 99 73 000 102 73 70 -9 -9 -9 000 63 14 03 -13.3 -14.3 29.34 6 12 103 77 000 106 64 60 -8 -9 -9 000 64 14 04 -13.6 -14.0 29.34 7 17 98 72 -001 113 87 79 -8 -8 -9 000 65 14 05 -13.6 -14.0 29.34 6 14 93 68 000 113 88 76 -6 -8 -8 000 66 14 06 -12.6 -12.9 29.35 9 20 82 56 000 112 82 78 -8 -7 -8 000 67 14 07 -10.5 -11.5 29.35 11 21 75 49 000 102 75102 -7 -8 -8 001 68 14 08 -8.6 -9.9 29.36 12 20 76 50 000 97103105 -8 -8 -9 008 69 14 09 -7.1 -8.3 29.36 12 22 78 53 000 97101103 -7 -7 -8 014 70 14 10 -5.7 -6.8 29.35 14 21 83 57 -001 96 98107 -6 -6 -7 010 71 14 11 -4.5 -5.7 29.35 16 23 79 53 000 95104103 -6 -7 -7 012 72 14 12 -3.7 -5.0 29.35 16 23 70 45 -002 92105104 -5 -6 -7 019 73 14 13 -3.0 -4.4 29.35 17 23 73 47 000 91104108 -4 -6 -7 029 74 14 14 -2.6 -4.3 29.35 16 22 74 48 000 88102110 -4 -5 -6 007 75 14 15 -2.5 -4.2 29.35 16 22 71 46 000 88 99109 -4 -5 -6 005 76 14 16 -2.2 -4.2 29.34 17 23 73 47 000 85 97109 -3 -5 -6 002 77 14 17 -2.2 -3.8 29.34 17 24 80 54 000 89102109 -3 -5 -6 000 78 14 18 -2.0 -3.1 29.34 17 23 74 49 000 92103108 -3 -4 -5 010 79 14 19 -1.8 -2.6 29.34 13 18 62 36 -001 94103108 -3 -4 -5 018 80 14 20 -2.3 -3.5 29.35 12 18 43 18 000 92 98102 -3 -4 -5 004 81 14 21 -3.0 -4.1 29.36 9 17 60 34 000 93101 99 -3 -4 -6 006 82 14 22 -3.6 -4.4 29.36 12 20 75 49 002 97 98 99 -4 -5 -6 004 83 14 23 -4.2 -4.8 29.36 13 22 84 59 000 99101101 -4 -5 -6 008 84 15 00 -4.6 -5.0 29.36 13 24 88 63 000 102100 98 -4 -4 -5 008 85 15 01 -4.5 -4.8 29.35 14 24 89 63 000 102100 95 -4 -4 -5 006 86 15 02 -4.8 -5.3 29.34 13 23 88 62 000 101 99100 -4 -4 -5 009 87 15 03 -5.9 -6.1 29.33 10 21 89 63 000 104 93102 -4 -4 -6 005 88 15 04 -8.5 -8.8 29.32 8 15 104 79 000 108 91 93 -4 -4 -5 001 89 15 05 -9.8 -10.1 29.30 6 18 110 84 000 109 70 88 -4 -5 -5 000 90 15 06 -10.3 -10.9 29.29 6 12 118 93 000 106 64 80 -4 -5 -5 000 91 15 07 -10.6 -11.2 29.27 5 13 130 104 000 107 61 79 -4 -4 -5 000 92 15 08 -9.6 -10.5 29.25 4 9 141 115 000 103 46 74 -4 -4 -5 000 93 15 09 -8.8 -10.4 29.25 3 9 100 74 001 95 40 71 -5 -4 -5 000 94 15 10 -7.5 -10.2 29.24 4 20 90 64 001 85 43 61 -5 -4 -5 000 95 15 11 -6.1 -9.4 29.23 6 21 108 82 000 79 47 56 -5 -5 -5 000 96 15 12 -4.3 -8.8 29.21 10 22 103 77 000 67 47 46 -4 -5 -5 000 97 15 13 -3.5 -7.5 29.19 12 20 93 68 000 71 46 40 -4 -5 -4 000 98 15 14 -3.3 -6.5 29.17 11 17 72 47 000 77 37 37 -4 -4 -4 000 99 15 15 -2.8 -6.0 29.16 9 15 77 51 000 77 35 35 -3 -3 -4 000 100 15 16 -2.6 -6.0 29.15 9 18 74 49 -001 74 37 31 -3 -3 -4 000 101 15 17 -2.5 -6.5 29.15 9 18 69 44 -001 70 35 30 -3 -4 -4 000 102 15 18 -2.5 -5.9 29.14 7 16 67 41 002 74 37 37 -3 -3 -4 000 103 15 19 -2.5 -5.2 29.13 4 12 86 61 000 77 33 30 -2 -3 -3 000 104 15 20 -3.3 -5.6 29.12 3 7 142 116 -001 82 28 25 -1 -2 -3 000 105 15 21 -4.3 -5.4 29.11 6 6 169 144 -001 94 40 25 -1 -2 -3 000 106 15 22 -4.8 -5.6 29.10 5 7 175 150 000 97 66 23 -1 -2 -3 000 107 15 23 -5.3 -5.8 29.10 5 7 182 156 000 101 73 22 -1 -2 -3 000 108 16 00 -5.9 -6.2 29.09 5 6 164 138 -001 105 47 24 -1 -2 -3 000 109 16 01 -6.6 -7.2 29.09 4 7 120 94 -001 101 43 27 -1 -2 -3 000 110 16 02 -6.5 -7.0 29.08 5 10 96 70 -001 103 36 28 -1 -2 -3 000 111 16 03 -6.6 -7.3 29.08 5 10 97 71 -001 100 29 35 -1 -2 -3 000 112 16 04 -6.4 -8.2 29.08 5 11 100 74 -001 89 33 78 -1 -2 -3 000 113 16 05 -6.2 -7.8 29.07 6 12 104 78 -002 91 34 77 -1 -2 -3 000 114 16 06 -6.1 -8.1 29.08 5 10 101 76 -003 88 38 39 -2 -2 -3 000 115 16 07 -5.7 -7.8 29.08 4 10 115 90 -003 87 45 31 -2 -2 -3 000 116 16 08 -5.1 -7.1 29.09 3 9 123 98 -001 88 42 34 -2 -2 -3 000 117 16 09 -4.4 -7.0 29.09 5 12 100 74 -001 82 43 36 -3 -3 -3 000 118 16 10 -3.4 -6.6 29.08 8 13 114 89 000 77 38 37 -1 -2 -3 000 119 16 11 -3.1 -5.8 29.09 11 14 92 67 000 80 39 35 -4 -2 -2 000 120 16 12 -3.0 -5.1 29.09 10 13 81 55 000 85 51 41 -3 -2 -3 000 * 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.