Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2025-11-10/00 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 10 00 -24.9 -30.0 29.48 2 2 227 201 000 68 60 63 -16-15-16 000 1 10 01 -25.6 -27.2 29.48 3 3 193 168 000 107 69 66 -17-16-16 000 2 10 02 -28.2 -28.2 29.48 1 3 191 166 000 130 77 69 -17-16-16 000 3 10 03 -29.7 -29.7 29.48 1 1 291 265 -001 132 73 73 -16-16-16 000 4 10 04 -33.6 -34.4 29.50 6 7 116 90 001 137 76 76 -19-17-17 000 5 10 05 -33.8 -35.1 29.51 4 11 80 55 002 128 62 76 -18-18-18 000 6 10 06 -34.6 -36.5 29.52 4 8 108 82 000 124 38 77 -18-17-18 000 7 10 07 -32.1 -33.2 29.52 3 7 93 67 -001 127 43 75 -19-18-18 000 8 10 08 -29.1 -30.7 29.52 1 6 106 81 000 115 44 71 -18-18-18 000 9 10 09 -27.4 -30.1 29.50 2 6 131 106 000 102 51 72 -19-19-18 000 10 10 10 -25.2 -28.8 29.49 3 7 123 97 000 90 66 68 -19-19-18 000 11 10 11 -22.2 -26.1 29.50 5 18 125 100 000 85 72 62 -19-19-19 000 12 10 12 -20.6 -23.9 29.49 9 16 113 88 000 90 78 57 -20-18-18 000 13 10 13 -20.0 -23.1 29.50 10 14 108 83 000 91 67 54 -21-18-17 000 14 10 14 -20.4 -23.3 29.50 9 11 94 68 000 93 57 55 -22-17-16 000 15 10 15 -22.1 -25.1 29.50 8 9 65 39 000 94 51 55 -20-16-16 000 16 10 16 -20.8 -24.0 29.52 7 9 61 36 000 91 54 55 -18-17-17 000 17 10 17 -19.6 -23.0 29.52 6 10 73 48 000 89 83 59 -17-16-17 000 18 10 18 -19.0 -21.7 29.52 6 9 79 53 000 95 81 60 -18-16-17 000 19 10 19 -19.5 -21.7 29.51 5 9 83 57 000 100 80 58 -17-17-17 000 20 10 20 -20.9 -22.6 29.50 6 10 86 60 000 107 72 55 -17-16-16 000 21 10 21 -22.5 -23.3 29.51 6 10 89 64 000 122 67 56 -18-16-16 000 22 10 22 -24.3 -25.2 29.50 6 10 89 63 000 125 71 60 -18-17-17 000 23 10 23 -26.7 -27.6 29.51 5 8 92 67 000 128 70 66 -17-17-17 000 24 11 00 -29.0 -30.0 29.51 5 7 101 75 000 132 64 69 -17-16-17 000 25 11 01 -29.9 -30.6 29.51 4 7 91 65 000 132 59 70 -17-16-17 000 26 11 02 -29.6 -29.9 29.51 3 6 96 71 000 132 59 69 -17-17-17 000 27 11 03 -29.6 -29.9 29.50 3 7 123 98 000 133 78 68 -17-17-17 000 28 11 04 -30.9 -31.8 29.50 5 9 143 117 000 134 65 64 -17-16-17 000 29 11 05 -30.4 -31.1 29.49 6 11 109 84 000 134 68 64 -16-16-16 000 30 11 06 -30.6 -31.3 29.49 6 14 104 79 000 134 72 65 -16-16-16 000 31 11 07 -29.3 -29.9 29.48 5 14 112 86 000 133 70 64 -16-16-16 000 32 11 08 -27.0 -27.4 29.48 6 13 100 75 000 130 78 66 -16-15-16 000 33 11 09 -24.4 -24.9 29.46 7 13 96 71 000 125 75 69 -16-15-15 000 34 11 10 -21.9 -23.0 29.45 6 11 95 70 000 114 76 61 -15-15-16 000 35 11 11 -19.9 -21.7 29.44 7 15 100 74 000 104 90 58 -14-15-15 000 36 11 12 -18.0 -19.9 29.44 8 13 97 72 -001 101 74 54 -14-14-15 000 37 11 13 -16.3 -18.4 29.43 9 17 93 67 000 98 95 48 -14-14-15 000 38 11 14 -13.6 -16.0 29.40 8 17 89 63 000 92 99 45 -13-14-15 000 39 11 15 -11.0 -13.7 29.38 11 18 82 57 -001 87 95 59 -12-13-14 000 40 11 16 -10.2 -12.6 29.36 12 18 81 56 000 89 97 98 -11-12-13 000 41 11 17 -9.4 -11.5 29.35 12 18 83 57 000 90103 99 -10-12-13 003 42 11 18 -9.0 -11.1 29.33 11 18 85 60 000 90 99100 -10-11-12 004 43 11 19 -9.2 -11.1 29.31 9 18 88 63 -001 92 88102 -9-10-12 002 44 11 20 -9.7 -11.2 29.28 7 19 96 71 -001 96 88101 -9-10-11 002 45 11 21 -10.2 -11.1 29.25 7 19 106 81 -001 103 92101 -9 -9-10 002 46 11 22 -9.9 -10.5 29.23 7 19 112 86 -001 107 95103 -8 -9-10 005 47 11 23 -9.5 -9.9 29.20 8 23 116 91 -001 107 97105 -8 -8 -9 009 48 12 00 -8.9 -9.3 29.18 9 23 111 86 -001 107 99108 -7 -8 -9 011 49 12 01 -8.0 -8.4 29.16 10 23 100 74 -001 105100105 -7 -8 -9 014 50 12 02 -7.2 -7.9 29.14 12 23 90 65 -002 102101106 -7 -8 -9 016 51 12 03 -7.0 -7.7 29.12 13 23 84 59 -001 101102107 -7 -8 -9 018 52 12 04 -7.1 -7.8 29.10 13 22 81 55 -002 101100106 -7 -8 -9 015 53 12 05 -7.3 -8.0 29.09 12 21 76 50 -001 102100106 -7 -8 -9 016 54 12 06 -7.7 -8.2 29.08 11 20 77 51 -001 105100107 -7 -8 -9 011 55 12 07 -8.3 -8.5 29.06 9 19 77 52 -001 108 99106 -7 -8 -9 003 56 12 08 -8.3 -8.5 29.05 8 18 75 50 000 108100105 -8 -8 -9 001 57 12 09 -7.7 -8.2 29.04 8 16 76 50 000 104103106 -7 -8 -9 001 58 12 10 -7.2 -8.0 29.04 7 13 78 53 000 100103106 -7 -8 -9 001 59 12 11 -7.0 -8.3 29.04 5 8 80 55 000 95 97105 -6 -7 -8 000 60 12 12 -6.7 -8.5 29.04 3 4 98 73 000 91 92102 -6 -7 -8 000 61 12 13 -6.3 -8.5 29.03 2 3 130 104 000 88 87 99 -6 -7 -8 000 62 12 14 -5.8 -8.3 29.02 2 3 163 137 000 86 82 97 -6 -6 -7 000 63 12 15 -5.5 -8.2 29.02 3 4 178 153 000 83 80 95 -6 -6 -7 000 64 12 16 -5.3 -7.9 29.02 4 5 187 161 000 83 77 93 -6 -6 -7 000 65 12 17 -5.3 -7.5 29.02 4 6 190 164 000 85 72 90 -6 -6 -7 000 66 12 18 -5.9 -7.5 29.03 4 7 190 165 000 89 67 88 -5 -6 -6 000 67 12 19 -6.9 -8.2 29.04 4 7 192 167 000 95 61 87 -5 -6 -6 000 68 12 20 -7.8 -8.3 29.05 3 6 194 169 000 104 58 87 -5 -6 -6 000 69 12 21 -9.8 -10.0 29.06 3 5 201 175 000 109 59 88 -5 -6 -6 000 70 12 22 -13.0 -13.6 29.07 3 4 194 169 000 113 62 91 -5 -6 -6 000 71 12 23 -15.8 -16.4 29.09 2 3 169 144 000 116 64 88 -5 -6 -6 000 72 13 00 -17.8 -18.4 29.10 3 4 135 110 000 118 66 89 -5 -6 -6 000 73 13 01 -18.7 -19.5 29.12 4 7 114 88 000 119 71 97 -5 -5 -7 000 74 13 02 -16.8 -17.0 29.12 3 9 118 92 002 117 73101 -5 -5 -7 000 75 13 03 -16.7 -17.3 29.13 3 9 130 105 000 117 72 91 -5 -5 -7 000 76 13 04 -13.9 -14.5 29.13 3 9 141 116 001 111 78 99 -5 -5 -6 000 77 13 05 -12.7 -13.4 29.14 4 8 151 125 000 109 85105 -5 -5 -6 000 78 13 06 -12.1 -12.5 29.15 5 9 149 124 000 111 95101 -5 -5 -6 002 79 13 07 -11.5 -11.8 29.15 5 10 137 112 000 111 96106 -4 -5 -6 002 80 13 08 -9.9 -10.1 29.17 9 14 87 61 000 110 99108 -5 -5 -6 001 81 13 09 -7.8 -8.4 29.18 10 16 86 60 000 103 90109 -5 -5 -6 002 82 13 10 -8.1 -9.2 29.19 12 19 86 60 000 99 88 92 -9 -5 -6 000 83 13 11 -9.2 -9.9 29.20 13 19 75 50 000 104 94 94 -8 -6 -7 000 84 13 12 -7.4 -9.1 29.21 11 17 81 55 000 92 88104 -7 -6 -7 000 85 13 13 -5.5 -7.8 29.22 10 16 79 54 000 85 79102 -6 -6 -7 001 86 13 14 -4.6 -7.4 29.22 9 15 79 53 000 80 73 99 -5 -5 -6 000 87 13 15 -4.2 -7.4 29.23 9 15 80 54 000 77 70 92 -5 -5 -6 000 88 13 16 -4.2 -7.5 29.23 8 13 82 56 000 76 58 85 -5 -5 -6 000 89 13 17 -4.5 -7.4 29.24 8 14 83 58 000 79 53 86 -5 -5 -6 000 90 13 18 -5.0 -7.4 29.25 7 15 84 58 000 83 63 81 -5 -6 -6 000 91 13 19 -6.1 -7.9 29.26 6 13 78 52 000 89 72 73 -5 -6 -7 000 92 13 20 -7.6 -8.7 29.27 6 10 92 66 000 98 72 78 -5 -6 -7 000 93 13 21 -8.9 -9.2 29.28 7 11 92 67 000 108 69 94 -5 -6 -6 000 94 13 22 -8.6 -8.8 29.30 6 13 97 71 000 108 69107 -5 -5 -6 000 95 13 23 -7.4 -8.9 29.31 7 16 96 71 000 94 72102 -4 -5 -6 000 96 14 00 -7.0 -8.0 29.32 8 16 92 66 000 99 73100 -4 -5 -5 000 97 14 01 -8.0 -9.2 29.33 9 16 86 60 000 98 76 98 -4 -5 -5 000 98 14 02 -8.3 -10.1 29.33 9 17 91 66 000 92 80 88 -4 -5 -5 000 99 14 03 -8.6 -10.8 29.33 9 21 86 61 000 89 68 86 -4 -4 -5 000 100 14 04 -9.0 -11.1 29.34 10 21 86 60 001 90 66 96 -5 -4 -5 000 101 14 05 -8.5 -10.4 29.34 12 20 84 58 000 92 70 87 -5 -4 -5 000 102 14 06 -8.9 -10.0 29.35 12 21 85 60 001 99 87 95 -5 -5 -5 000 103 14 07 -8.2 -9.4 29.36 14 22 84 58 001 98 93103 -5 -5 -6 000 104 14 08 -6.2 -7.8 29.37 16 25 80 55 001 92 98 97 -7 -6 -6 002 105 14 09 -5.9 -8.1 29.37 18 27 88 63 000 86 89 93 -6 -5 -5 000 106 14 10 -6.3 -8.6 29.37 16 28 84 58 000 85 78 93 -7 -7 -6 000 107 14 11 -5.3 -7.9 29.36 16 26 86 60 000 83 78 95 -6 -6 -6 000 108 14 12 -4.8 -7.4 29.36 18 27 81 56 000 82 88 96 -5 -6 -7 000 109 14 13 -4.1 -6.3 29.35 18 27 81 56 000 85 89 96 -5 -6 -7 000 110 14 14 -3.7 -6.1 29.35 18 27 80 55 -001 83 77101 -4 -5 -6 000 111 14 15 -3.7 -6.4 29.34 18 26 79 54 000 80 79103 -4 -5 -6 000 112 14 16 -3.4 -5.9 29.33 17 26 77 51 000 82 83 99 -4 -5 -6 000 113 14 17 -3.1 -5.8 29.32 16 26 79 53 000 80 76 97 -4 -5 -6 000 114 14 18 -2.9 -5.4 29.31 14 25 84 58 000 82 66 97 -3 -4 -5 000 115 14 19 -2.4 -4.9 29.31 16 25 85 60 001 81 77 95 -3 -4 -5 000 116 14 20 -4.1 -6.5 29.30 11 26 82 57 001 83 72 91 -2 -4 -5 000 117 14 21 -5.8 -6.7 29.29 9 23 93 67 000 97 73103 -2 -3 -5 000 118 14 22 -6.6 -6.8 29.27 9 21 100 75 001 106 65 91 -2 -3 -4 000 119 14 23 -8.1 -8.4 29.26 8 22 107 81 001 107 62 85 -3 -3 -4 000 120 15 00 -9.7 -10.1 29.24 9 28 102 76 000 108 61 92 -3 -3 -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.