Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2025-11-09/12 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 09 12 -17.8 -22.9 29.50 5 5 84 58 000 71 71 85 -18-17-17 000 1 09 13 -16.9 -21.8 29.49 4 6 86 60 000 75 69 83 -18-17-17 000 2 09 14 -16.4 -21.1 29.50 4 7 84 59 000 76 61 82 -17-17-17 000 3 09 15 -16.1 -20.9 29.49 3 6 79 53 000 75 48 80 -17-16-17 000 4 09 16 -15.9 -20.6 29.50 2 3 82 57 000 75 41 77 -17-16-16 000 5 09 17 -15.7 -20.5 29.51 2 3 105 80 000 75 38 72 -16-16-16 000 6 09 18 -16.0 -19.8 29.51 1 2 152 126 001 77 38 63 -16-16-16 000 7 09 19 -16.5 -20.5 29.50 2 2 176 150 000 81 40 56 -15-15-16 000 8 09 20 -17.5 -20.9 29.50 2 2 203 177 000 86 42 54 -15-15-16 000 9 09 21 -18.8 -21.3 29.49 3 3 235 210 000 94 42 54 -15-15-16 000 10 09 22 -20.2 -22.0 29.50 4 4 257 231 000 103 41 57 -15-15-15 000 11 09 23 -21.8 -22.8 29.48 4 4 265 239 000 113 39 60 -15-15-15 000 12 10 00 -23.6 -23.7 29.47 4 4 250 224 000 124 62 64 -15-15-15 000 13 10 01 -26.5 -27.2 29.49 5 5 231 206 000 128 92 68 -15-15-15 000 14 10 02 -28.0 -28.8 29.49 4 5 225 200 000 130 76 71 -15-15-15 000 15 10 03 -29.9 -30.6 29.49 3 3 204 178 000 133 70 71 -15-15-15 000 16 10 04 -30.6 -30.9 29.50 2 2 164 138 000 134 74 71 -16-15-15 000 17 10 05 -30.7 -31.3 29.50 3 5 114 89 000 134 79 71 -16-16-15 000 18 10 06 -31.1 -32.4 29.50 4 8 94 68 000 124 80 69 -16-16-16 000 19 10 07 -31.3 -32.5 29.50 4 10 75 49 000 123 78 62 -17-17-16 000 20 10 08 -28.1 -29.8 29.51 3 14 68 42 000 115 67 59 -17-17-17 000 21 10 09 -26.0 -27.6 29.50 2 10 93 68 000 112 71 59 -17-17-17 000 22 10 10 -23.9 -26.5 29.49 2 8 123 97 000 99 69 63 -18-17-17 000 23 10 11 -21.4 -24.3 29.49 3 15 133 107 000 94 72 62 -18-17-16 000 24 10 12 -19.5 -23.1 29.49 7 14 103 78 000 86 77 58 -19-16-15 000 25 10 13 -19.5 -22.2 29.49 7 10 95 69 000 94 72 56 -20-15-15 000 26 10 14 -19.8 -21.9 29.49 6 7 83 58 000 102 57 57 -18-14-15 000 27 10 15 -19.7 -21.8 29.49 5 6 67 41 000 101 52 60 -16-15-15 000 28 10 16 -18.5 -20.8 29.49 5 6 61 36 000 97 56 60 -15-15-15 000 29 10 17 -17.6 -20.0 29.49 5 5 69 43 000 95 63 61 -15-15-15 000 30 10 18 -17.5 -20.0 29.49 5 6 77 52 000 94 59 60 -15-15-15 000 31 10 19 -18.2 -20.6 29.49 5 6 86 61 000 96 50 62 -15-15-16 000 32 10 20 -19.6 -21.5 29.50 5 7 87 62 000 104 48 67 -16-15-16 000 33 10 21 -21.0 -22.0 29.49 5 7 86 60 000 116 57 67 -15-15-16 000 34 10 22 -22.5 -23.1 29.49 5 7 78 52 000 123 64 64 -15-15-16 000 35 10 23 -24.8 -25.5 29.50 4 7 82 57 000 126 71 63 -15-15-16 000 36 11 00 -27.5 -28.5 29.50 4 7 92 66 000 130 74 65 -16-15-16 000 37 11 01 -29.5 -30.5 29.51 4 7 93 68 000 132 75 70 -16-16-16 000 38 11 02 -30.3 -31.3 29.51 4 7 93 68 000 133 71 76 -16-16-16 000 39 11 03 -29.9 -30.9 29.50 4 6 104 78 000 133 73 63 -15-16-16 000 40 11 04 -30.1 -31.1 29.50 4 8 114 88 000 133 78 56 -15-16-16 000 41 11 05 -29.2 -29.9 29.50 5 12 119 94 000 133 66 56 -15-15-15 000 42 11 06 -28.7 -29.2 29.50 6 13 97 72 000 132 77 55 -15-15-15 000 43 11 07 -26.1 -26.5 29.50 7 14 91 66 000 129 66 52 -15-15-15 000 44 11 08 -24.3 -24.7 29.49 7 12 92 67 000 126 74 53 -15-14-15 000 45 11 09 -22.3 -22.7 29.48 7 14 95 70 000 124 71 53 -14-14-15 000 46 11 10 -20.0 -20.7 29.48 7 13 99 74 000 117 68 52 -14-13-14 000 47 11 11 -18.3 -19.5 29.47 9 17 90 64 000 109 87 46 -14-13-14 000 48 11 12 -16.5 -17.5 29.45 11 23 79 53 000 109107 45 -14-13-14 000 49 11 13 -13.1 -14.8 29.44 13 21 80 54 000 98 98 44 -14-14-13 000 50 11 14 -11.5 -13.1 29.43 13 18 75 49 000 98100 54 -13-13-13 000 51 11 15 -9.5 -11.3 29.42 12 16 77 52 000 93108114 -11-12-13 000 52 11 16 -8.9 -11.4 29.41 13 17 85 59 000 86 99114 -10-12-13 000 53 11 17 -9.4 -12.3 29.40 10 19 87 61 000 83 79102 -10-11-12 000 54 11 18 -9.7 -12.1 29.38 8 19 91 65 000 87 73 99 -9-10-11 000 55 11 19 -10.8 -12.8 29.35 6 14 112 87 000 92 63 94 -9 -9-11 000 56 11 20 -12.1 -13.4 29.33 7 12 126 100 000 102 59 88 -8 -9-10 000 57 11 21 -13.3 -13.8 29.31 7 12 129 103 000 112 72 95 -8 -9 -9 000 58 11 22 -14.6 -15.1 29.30 7 12 124 98 000 114 77 98 -8 -8 -9 000 59 11 23 -16.3 -16.9 29.28 6 13 122 96 -001 116 84102 -7 -8 -9 000 60 12 00 -17.1 -17.6 29.27 6 17 130 104 000 117 94108 -7 -7 -8 000 61 12 01 -15.6 -16.0 29.25 7 19 131 105 000 116 96112 -6 -7 -8 003 62 12 02 -12.7 -13.1 29.22 7 22 123 98 -001 112102107 -6 -7 -8 010 63 12 03 -10.1 -10.4 29.20 9 22 100 74 000 109101104 -6 -7 -8 009 64 12 04 -8.7 -9.0 29.18 8 19 93 67 000 108 99110 -5 -7 -8 006 65 12 05 -8.0 -8.2 29.15 8 16 100 75 -001 107102106 -6 -6 -7 008 66 12 06 -7.5 -7.7 29.12 7 18 106 80 000 107103100 -6 -7 -7 015 67 12 07 -8.0 -8.4 29.10 6 17 111 86 -003 107102 96 -6 -7 -8 007 68 12 08 -8.7 -8.9 29.08 4 15 132 106 001 108 92 96 -5 -6 -7 000 69 12 09 -9.1 -9.2 29.06 4 20 141 116 000 109 70 87 -5 -6 -7 000 70 12 10 -7.9 -9.2 29.04 5 22 164 138 000 97 60 78 -5 -5 -6 000 71 12 11 -6.5 -8.6 29.02 6 20 157 131 000 87 59 73 -4 -5 -6 000 72 12 12 -4.9 -7.5 29.00 6 19 130 105 001 82 63 81 -4 -5 -6 000 73 12 13 -3.9 -6.6 28.98 7 16 100 75 002 80 71 96 -4 -5 -6 000 74 12 14 -3.2 -5.5 28.97 7 14 97 72 001 82 82 99 -4 -5 -6 000 75 12 15 -2.2 -4.0 28.95 9 14 91 66 001 87102101 -3 -5 -6 002 76 12 16 -1.8 -3.3 28.95 9 12 86 61 000 89102 95 -3 -4 -5 004 77 12 17 -1.5 -2.9 28.94 8 12 107 82 -001 89 90102 -3 -4 -5 006 78 12 18 -1.5 -2.8 28.93 7 14 117 92 -002 89 97103 -2 -3 -4 005 79 12 19 -0.7 -1.9 28.93 9 13 98 73 000 91102100 -2 -3 -4 004 80 12 20 -1.6 -2.1 28.93 6 15 106 80 000 97103106 -2 -3 -4 005 81 12 21 -1.5 -2.0 28.94 7 16 96 70 000 97 99103 -2 -3 -4 013 82 12 22 -1.7 -2.0 28.94 7 16 100 74 000 99 98105 -1 -2 -4 013 83 12 23 -1.4 -1.9 28.96 9 17 88 62 000 97 98107 -1 -2 -4 020 84 13 00 -1.7 -2.2 28.97 9 18 87 61 000 96103107 -2 -3 -4 011 85 13 01 -1.9 -2.6 28.98 11 19 79 53 000 96103105 -2 -3 -4 015 86 13 02 -2.0 -2.6 28.99 13 22 80 54 -005 97103106 -2 -3 -4 026 87 13 03 -2.3 -2.9 29.01 16 23 71 45 -002 97104102 -3 -4 -3 032 88 13 04 -2.9 -3.6 29.04 16 24 79 53 -002 97104108 -4 -4 -4 014 89 13 05 -3.4 -4.3 29.05 16 25 82 56 000 95105106 -4 -4 -4 000 90 13 06 -3.7 -4.6 29.07 17 24 85 59 -001 96104 91 -4 -4 -4 001 91 13 07 -3.2 -4.0 29.09 17 23 79 53 000 96104 99 -4 -4 -5 009 92 13 08 -2.2 -3.1 29.11 16 22 72 47 -001 94104 98 -3 -4 -5 002 93 13 09 -2.6 -4.0 29.13 17 23 77 51 000 90105 89 -4 -5 -6 000 94 13 10 -2.6 -3.8 29.15 15 20 83 58 002 92102108 -4 -5 -6 005 95 13 11 -2.2 -3.5 29.16 15 20 79 53 -001 91 97108 -3 -4 -5 005 96 13 12 -2.0 -3.2 29.17 15 20 81 56 001 91104108 -3 -4 -5 004 97 13 13 -2.1 -3.7 29.17 14 21 79 54 000 88 93105 -3 -4 -5 001 98 13 14 -1.8 -3.6 29.17 13 19 85 60 000 86 88106 -3 -4 -4 001 99 13 15 -1.5 -3.7 29.17 12 18 86 60 -001 83 84103 -2 -3 -4 000 100 13 16 -1.5 -3.5 29.17 11 17 85 59 000 84 83103 -2 -3 -4 000 101 13 17 -1.5 -3.3 29.18 9 15 93 67 001 85 79 99 -2 -2 -4 000 102 13 18 -1.8 -3.3 29.18 7 15 112 87 001 87 71 96 -1 -2 -3 000 103 13 19 -0.7 -2.7 29.19 9 18 99 73 000 84 75106 -1 -2 -3 000 104 13 20 -0.7 -2.1 29.19 9 19 102 76 001 88 96 94 -1 -2 -3 000 105 13 21 -0.7 -1.6 29.19 10 19 98 73 -001 92100100 -1 -2 -3 005 106 13 22 -0.7 -1.3 29.20 9 18 89 64 002 95102105 -1 -2 -3 009 107 13 23 -0.5 -1.1 29.20 12 17 66 41 000 95102 94 -1 -2 -3 001 108 14 00 -1.0 -1.3 29.22 11 18 57 32 -001 98102104 -1 -2 -3 013 109 14 01 -1.7 -2.3 29.24 12 18 65 40 001 96103 85 -2 -3 -3 011 110 14 02 -2.5 -3.2 29.25 13 21 79 54 000 97104107 -3 -4 -4 013 111 14 03 -4.0 -4.1 29.27 17 24 79 54 -001 104103107 -4 -4 -5 019 112 14 04 -4.5 -5.2 29.29 18 24 88 62 000 99104103 -5 -4 -5 008 113 14 05 -4.1 -4.9 29.29 18 26 85 59 002 97105107 -5 -5 -4 019 114 14 06 -3.4 -4.3 29.30 18 23 82 56 000 96104 96 -4 -4 -4 003 115 14 07 -2.3 -2.7 29.32 11 14 36 11 000 100103 95 -3 -3 -4 005 116 14 08 -3.1 -3.6 29.35 13 17 12 346 -001 98103106 -4 -3 -4 012 117 14 09 -3.5 -4.3 29.38 12 15 15 350 000 96103108 -5 -4 -4 034 118 14 10 -3.5 -4.4 29.41 12 14 28 2 000 95106107 -5 -6 -5 005 119 14 11 -4.0 -5.0 29.43 12 14 29 4 000 95106104 -5 -6 -5 003 120 14 12 -3.9 -5.2 29.45 13 15 51 26 001 93107109 -5 -7 -8 001 * 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.