Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2025-11-08/00 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 08 00 -20.0 -22.5 29.11 4 5 114 88 000 97 99 98 -13-13-14 000 1 08 01 -17.0 -18.1 29.13 6 7 104 78 000 111105120 -14-13-14 001 2 08 02 -16.8 -18.0 29.15 5 10 102 76 -001 108107120 -15-14-14 000 3 08 03 -16.9 -18.2 29.13 5 10 98 73 001 107102110 -14-14-15 000 4 08 04 -16.5 -18.1 29.16 7 15 95 70 000 104110111 -13-14-16 000 5 08 05 -16.0 -17.4 29.20 11 14 86 60 001 104116120 -15-15-16 000 6 08 06 -15.8 -17.9 29.22 10 16 73 47 000 97113121 -16-15-16 001 7 08 07 -15.9 -18.6 29.21 10 17 69 43 000 91106121 -16-15-16 002 8 08 08 -15.6 -19.4 29.24 12 18 67 41 000 80 84118 -16-16-16 000 9 08 09 -15.4 -19.5 29.24 12 18 72 47 000 79 88112 -16-16-16 000 10 08 10 -15.3 -19.8 29.25 12 15 71 46 000 75 92110 -16-16-16 000 11 08 11 -15.8 -20.3 29.27 11 15 71 46 000 75 77105 -16-16-16 000 12 08 12 -16.3 -20.5 29.28 9 15 76 50 000 79 69 98 -16-16-17 000 13 08 13 -16.0 -20.2 29.29 8 14 87 62 000 78 85 83 -17-16-16 000 14 08 14 -15.7 -19.0 29.30 9 12 94 69 000 85110 73 -17-16-16 000 15 08 15 -15.3 -17.2 29.32 8 11 84 59 000 99102 77 -17-15-15 000 16 08 16 -15.3 -16.1 29.34 7 9 69 44 000 109 89 82 -16-14-15 000 17 08 17 -14.6 -15.4 29.35 6 8 65 39 000 109 90 88 -16-14-15 000 18 08 18 -14.3 -15.0 29.36 5 7 66 40 000 108 97 90 -15-14-15 000 19 08 19 -14.2 -15.3 29.37 4 6 67 42 000 106101 90 -15-14-14 000 20 08 20 -14.4 -15.6 29.37 4 5 69 44 000 105 98 87 -15-14-14 000 21 08 21 -14.7 -15.1 29.38 4 5 65 40 000 113 95 83 -16-13-14 000 22 08 22 -14.9 -15.1 29.40 4 5 68 42 000 115 94 81 -16-13-14 000 23 08 23 -15.3 -15.5 29.41 5 6 74 48 000 116 91 83 -16-14-14 000 24 09 00 -16.0 -16.2 29.42 6 6 77 51 000 116 93 85 -17-14-15 000 25 09 01 -17.1 -17.4 29.44 6 7 75 49 000 118 91 88 -18-14-15 000 26 09 02 -17.8 -18.1 29.45 6 6 75 49 000 119 81 95 -19-14-15 000 27 09 03 -18.3 -18.6 29.45 6 7 77 52 000 119 88103 -19-14-15 000 28 09 04 -18.4 -18.7 29.45 7 10 78 53 000 119 98104 -19-14-15 000 29 09 05 -18.4 -18.7 29.46 8 10 73 48 000 119104 98 -19-15-15 000 30 09 06 -18.7 -18.9 29.47 6 15 62 37 000 120 93104 -19-16-16 000 31 09 07 -19.2 -19.5 29.48 4 14 89 64 000 120 77106 -17-16-17 000 32 09 08 -19.5 -19.8 29.49 5 11 98 72 000 121 62 93 -17-16-16 000 33 09 09 -20.0 -20.3 29.49 4 10 105 80 000 121 57 74 -17-16-15 000 34 09 10 -19.8 -20.5 29.50 4 11 111 86 000 116 54 81 -17-16-15 000 35 09 11 -18.7 -21.5 29.50 6 18 110 85 000 93 52 83 -17-16-15 000 36 09 12 -17.7 -21.6 29.49 8 18 112 86 000 82 54 84 -17-16-15 000 37 09 13 -16.9 -20.9 29.49 8 14 113 88 000 80 64 83 -17-15-15 000 38 09 14 -16.2 -20.1 29.49 7 11 111 85 000 81 77 80 -17-15-14 000 39 09 15 -15.7 -19.4 29.48 6 9 112 86 000 82 78 80 -16-15-14 000 40 09 16 -15.3 -19.1 29.48 4 5 122 96 000 82 71 79 -16-14-14 000 41 09 17 -15.2 -19.1 29.49 4 4 144 118 000 81 60 78 -15-13-14 000 42 09 18 -15.3 -18.7 29.49 3 4 165 139 000 82 50 73 -15-13-14 000 43 09 19 -16.0 -19.2 29.49 3 5 191 166 000 84 46 66 -14-13-14 000 44 09 20 -17.0 -19.5 29.48 3 6 214 189 000 94 50 60 -13-13-14 000 45 09 21 -18.8 -19.6 29.47 4 7 234 208 000 113 57 56 -13-13-14 000 46 09 22 -21.3 -22.0 29.48 5 6 256 230 000 121 56 57 -12-13-14 000 47 09 23 -23.7 -24.5 29.48 5 5 256 230 000 125 53 60 -12-13-14 000 48 10 00 -26.3 -27.1 29.48 4 4 231 205 000 129 52 60 -12-13-14 000 49 10 01 -28.0 -28.8 29.47 3 3 208 183 000 130 58 60 -13-13-14 000 50 10 02 -28.5 -28.8 29.47 2 3 140 114 000 132 63 60 -13-13-14 000 51 10 03 -29.7 -30.5 29.48 4 4 85 59 000 133 62 60 -13-13-14 000 52 10 04 -31.0 -31.4 29.49 4 6 77 51 000 135 58 60 -13-13-14 000 53 10 05 -31.7 -32.3 29.49 4 7 78 52 000 132 59 63 -14-14-14 000 54 10 06 -31.0 -32.9 29.50 4 9 68 43 000 116 69 67 -15-14-15 000 55 10 07 -29.5 -30.9 29.50 3 9 63 38 000 119 64 70 -15-15-15 000 56 10 08 -27.8 -29.2 29.49 2 10 78 52 000 116 68 71 -15-15-15 000 57 10 09 -25.5 -27.9 29.49 2 10 80 54 000 103 64 72 -15-15-15 000 58 10 10 -22.8 -25.8 29.50 1 6 66 41 000 95 63 80 -15-15-15 000 59 10 11 -20.2 -23.2 29.50 0 4 46 21 000 93 68 94 -15-15-15 000 60 10 12 -17.8 -20.7 29.50 0 6 168 142 000 91 72 95 -15-15-15 000 61 10 13 -15.5 -19.0 29.49 2 9 136 111 000 85 79 93 -15-15-15 000 62 10 14 -14.7 -18.9 29.49 5 7 114 89 000 78 78 92 -15-14-15 000 63 10 15 -14.3 -18.2 29.49 4 7 119 93 000 80 79 96 -15-14-14 000 64 10 16 -13.9 -17.8 29.49 3 6 133 108 000 80 75 79 -15-14-14 000 65 10 17 -13.6 -17.3 29.49 2 6 152 126 000 81 72 65 -14-14-14 000 66 10 18 -13.9 -17.0 29.49 2 5 194 168 000 85 80 61 -14-15-14 000 67 10 19 -14.5 -17.3 29.49 2 5 201 176 000 90 76 56 -13-14-14 000 68 10 20 -15.8 -17.5 29.50 2 5 173 147 000 101 74 54 -14-14-14 000 69 10 21 -18.3 -18.5 29.50 3 4 130 105 000 118 75 55 -14-14-14 000 70 10 22 -21.6 -22.3 29.51 4 4 103 77 000 122 74 56 -14-13-14 000 71 10 23 -24.5 -25.4 29.51 4 4 87 61 000 126 72 56 -14-13-14 000 72 11 00 -26.4 -27.0 29.52 3 5 74 49 000 129 69 54 -15-13-14 000 73 11 01 -28.2 -29.3 29.52 3 5 77 51 000 131 69 53 -15-13-14 000 74 11 02 -29.8 -30.7 29.53 4 7 85 60 000 133 70 58 -15-14-14 000 75 11 03 -29.5 -29.8 29.53 2 5 82 56 000 133 74 68 -14-14-14 000 76 11 04 -29.7 -30.0 29.53 1 3 118 92 000 133 79 69 -13-13-14 000 77 11 05 -29.7 -30.5 29.53 3 3 148 122 000 133 82 58 -13-13-14 000 78 11 06 -27.1 -27.3 29.54 0 2 114 88 000 129 83 52 -14-13-14 000 79 11 07 -27.0 -27.6 29.54 1 2 359 333 000 130 82 52 -13-13-14 000 80 11 08 -26.4 -27.0 29.53 1 2 352 327 000 124 83 52 -13-13-14 000 81 11 09 -24.7 -26.4 29.53 1 1 267 242 001 110 84 44 -13-13-14 000 82 11 10 -22.6 -25.0 29.53 1 1 235 209 000 100 88 51 -13-12-13 000 83 11 11 -19.1 -21.2 29.53 0 0 272 247 001 99 91 57 -13-12-13 000 84 11 12 -17.1 -19.2 29.53 1 1 76 51 001 98 94 45 -13-13-13 000 85 11 13 -15.9 -17.8 29.52 2 2 100 75 000 100 92 44 -13-13-13 000 86 11 14 -15.1 -17.3 29.51 3 3 95 70 000 95 82 40 -13-13-13 000 87 11 15 -14.3 -16.4 29.50 3 5 96 70 000 96 89 36 -12-12-13 000 88 11 16 -13.5 -15.5 29.49 3 5 110 85 000 96 94 35 -11-11-13 000 89 11 17 -12.8 -14.9 29.48 3 3 133 108 000 94 98 32 -11-11-12 000 90 11 18 -12.8 -14.7 29.47 4 6 153 127 -001 95106 29 -11-11-11 000 91 11 19 -13.5 -14.9 29.44 5 7 167 141 000 101 59 22 -10-10-10 000 92 11 20 -13.9 -14.5 29.42 6 8 151 126 000 111 50 33 -9-10-10 000 93 11 21 -13.5 -13.8 29.40 6 6 148 122 -001 113 99112 -8 -8-10 000 94 11 22 -11.3 -12.0 29.38 5 7 152 126 -001 107 94112 -7 -8 -9 000 95 11 23 -10.7 -11.6 29.36 6 16 161 136 -001 105 94110 -6 -7 -8 001 96 12 00 -9.5 -10.5 29.34 6 19 148 123 000 102 95111 -6 -6 -7 000 97 12 01 -10.2 -10.6 29.31 8 19 157 131 000 109100108 -5 -6 -7 001 98 12 02 -12.1 -12.4 29.28 8 23 154 129 000 112102107 -5 -6 -7 005 99 12 03 -9.4 -9.7 29.24 8 23 146 121 -001 109102101 -5 -6 -7 013 100 12 04 -5.8 -6.0 29.20 11 23 100 75 -001 104106104 -5 -6 -6 011 101 12 05 -4.8 -5.5 29.18 14 21 82 57 -003 98105106 -5 -5 -5 028 102 12 06 -4.6 -5.5 29.16 15 21 80 55 000 97106106 -5 -6 -6 026 103 12 07 -4.8 -5.7 29.15 15 20 80 55 -002 96103109 -5 -6 -7 038 104 12 08 -5.0 -6.2 29.13 15 21 83 58 000 95101108 -6 -7 -7 020 105 12 09 -4.9 -6.4 29.10 13 20 94 68 000 92 94 99 -5 -6 -7 007 106 12 10 -4.9 -6.9 29.07 8 17 109 83 000 87 85 90 -5 -6 -7 001 107 12 11 -4.5 -7.2 29.03 6 15 134 108 000 81 64 85 -4 -5 -6 000 108 12 12 -3.3 -6.6 28.99 7 14 123 97 000 76 85 86 -4 -5 -6 000 109 12 13 -3.4 -5.5 28.97 4 10 119 93 -002 86 91 93 -4 -5 -6 000 110 12 14 -3.0 -4.7 28.94 5 7 198 172 000 89 97 99 -4 -4 -5 000 111 12 15 -2.3 -4.0 28.92 9 9 210 185 001 88 94107 -3 -4 -5 000 112 12 16 -1.8 -3.6 28.90 11 12 208 182 004 86 94109 -3 -4 -5 000 113 12 17 -1.7 -3.6 28.90 13 15 210 184 004 85 88106 -3 -4 -5 000 114 12 18 -2.1 -4.3 28.90 12 16 212 187 001 83 82108 -3 -3 -4 000 115 12 19 -2.4 -4.5 28.90 11 16 215 189 -001 83 80108 -2 -3 -4 000 116 12 20 -2.5 -4.3 28.91 10 17 225 199 001 87 77108 -2 -3 -4 000 117 12 21 -3.2 -4.6 28.92 12 19 233 207 -001 91 66 97 -3 -3 -4 000 118 12 22 -4.2 -5.6 28.93 15 22 240 214 -002 92 67 94 -5 -3 -4 000 119 12 23 -6.3 -7.8 28.95 16 22 250 224 000 93 69 95 -7 -3 -4 000 120 13 00 -7.9 -9.5 28.98 14 22 259 233 000 94 71 90 -7 -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.