Halley site lat/lon = (-75.4330,-26.2170) cell lat/lon = (-75.4273,-26.2060) Forecast initialized at 2025-07-30/00 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 30 00 -33.7 -38.3 29.05 11 16 73 47 000 84 54 24 -27-23-21 000 1 30 01 -21.6 -21.6 29.03 14 23 59 33 001 126 69 32 -25-21-20 000 2 30 02 -21.3 -21.3 29.02 12 18 85 59 002 125 62 23 -24-21-21 001 3 30 03 -25.2 -25.2 29.01 14 20 88 62 004 131 43 18 -24-23-23 003 4 30 04 -24.9 -24.9 28.99 12 28 89 63 -001 131 33 16 -23-22-22 001 5 30 05 -25.3 -25.3 28.99 13 27 86 60 002 131 30 19 -25-23-22 000 6 30 06 -26.5 -26.5 28.98 13 26 87 61 000 133 33 30 -25-23-22 001 7 30 07 -28.4 -28.4 28.98 12 18 90 64 000 136 46 39 -25-23-23 003 8 30 08 -30.5 -30.5 28.94 12 15 97 71 001 139 43 59 -24-23-23 004 9 30 09 -26.4 -26.4 28.95 18 24 79 53 000 133 39 38 -28-24-24 004 10 30 10 -23.4 -23.4 28.96 19 24 76 50 000 126 46 39 -28-25-24 001 11 30 11 -22.7 -22.7 28.94 17 23 75 49 001 124 38 36 -27-26-25 000 12 30 12 -25.6 -25.6 28.94 14 21 86 60 001 132 38 36 -26-25-25 001 13 30 13 -26.5 -26.5 28.95 15 22 83 57 000 133 84 35 -27-26-26 002 14 30 14 -25.3 -25.3 28.95 17 24 79 53 000 132 59 35 -27-27-27 001 15 30 15 -24.6 -24.6 28.94 18 23 76 50 000 131 95 49 -27-27-27 001 16 30 16 -24.8 -24.8 28.95 18 23 77 51 000 131 48 62 -27-27-27 001 17 30 17 -24.5 -24.5 28.95 16 20 75 49 -002 130 55 63 -27-26-27 001 18 30 18 -25.0 -25.0 28.94 17 22 79 53 000 131 55 79 -27-27-27 001 19 30 19 -26.2 -26.2 28.94 18 26 84 58 000 133 50 75 -26-26-27 001 20 30 20 -26.6 -26.6 28.94 18 25 85 59 000 134 58102 -26-26-27 001 21 30 21 -26.6 -26.6 28.94 17 22 86 59 001 134 65117 -27-26-27 002 22 30 22 -26.4 -26.4 28.94 15 21 86 60 001 133 46 93 -27-26-27 002 23 30 23 -26.0 -26.0 28.94 15 22 87 61 000 132 59 55 -27-27-27 001 24 31 00 -27.1 -27.1 28.93 13 21 92 66 000 134 56 40 -26-26-27 001 25 31 01 -26.6 -26.6 28.94 12 20 89 63 000 133 58 31 -26-26-27 001 26 31 02 -25.0 -25.0 28.93 13 20 80 54 -001 131 51 31 -26-25-26 001 27 31 03 -23.2 -23.2 28.94 14 20 69 43 000 128 37 29 -27-25-26 001 28 31 04 -22.5 -22.5 28.95 14 20 67 41 000 127 31 30 -26-25-25 000 29 31 05 -22.2 -22.2 28.96 12 16 70 44 000 126 32 35 -26-25-25 000 30 31 06 -27.9 -27.9 28.98 10 14 97 71 000 135 66 38 -26-25-25 002 31 31 07 -29.8 -29.8 29.01 10 15 98 72 000 138 95 39 -26-26-25 004 32 31 08 -27.9 -27.9 29.02 10 14 95 68 000 135 57 41 -26-26-26 002 33 31 09 -28.9 -28.9 29.03 8 14 114 87 000 136 29 40 -26-26-26 003 34 31 10 -29.9 -29.9 29.05 7 7 124 98 -001 137 39 38 -26-26-26 003 35 31 11 -30.8 -30.8 29.06 8 8 123 97 -001 139 48 32 -26-27-25 004 36 31 12 -28.5 -28.5 29.07 8 11 103 77 -001 135 45 46 -27-27-24 003 37 31 13 -25.6 -25.6 29.09 11 17 82 56 -002 125 35 71 -29-25-24 001 38 31 14 -25.2 -25.2 29.10 13 17 83 57 -001 131 35 71 -27-24-24 001 39 31 15 -23.9 -23.9 29.10 10 12 78 52 -001 129 32 39 -26-24-24 002 40 31 16 -23.8 -23.8 29.11 9 11 80 54 000 129 36 30 -25-24-24 002 41 31 17 -24.7 -24.7 29.13 8 9 90 64 000 130 32 29 -25-24-24 002 42 31 18 -24.5 -24.5 29.14 9 10 89 63 000 130 27 32 -24-23-24 001 43 31 19 -24.1 -24.1 29.15 10 12 85 58 000 129 30 33 -25-23-24 001 44 31 20 -24.2 -24.2 29.16 10 11 82 56 000 130 34 33 -25-23-24 000 45 31 21 -24.2 -24.2 29.16 10 12 82 55 000 129 36 37 -25-24-24 000 46 31 22 -23.4 -23.4 29.17 10 13 79 53 000 128 37 35 -25-24-23 000 47 31 23 -23.2 -23.2 29.18 9 13 81 55 000 125 33 33 -25-23-23 001 48 01 00 -23.2 -23.2 29.18 8 11 84 57 000 126 30 34 -25-23-23 001 49 01 01 -24.4 -24.4 29.18 8 11 94 68 001 130 25 31 -25-22-23 001 50 01 02 -24.9 -24.9 29.18 9 11 92 66 001 130 24 53 -24-22-23 001 51 01 03 -24.8 -24.8 29.19 8 10 92 66 002 130 24 61 -23-22-23 001 52 01 04 -25.9 -25.9 29.20 7 9 101 75 000 132 22 69 -22-22-22 001 53 01 05 -26.3 -26.3 29.20 7 10 98 72 001 132 36 87 -22-22-22 001 54 01 06 -24.0 -24.0 29.19 8 11 84 57 000 129 50 83 -23-22-22 001 55 01 07 -23.1 -23.1 29.18 8 10 79 53 001 128 47 86 -23-23-22 001 56 01 08 -23.3 -23.3 29.17 10 12 83 57 000 128 52 84 -24-22-22 001 57 01 09 -25.7 -25.7 29.16 11 13 90 63 000 132 78 80 -23-22-22 002 58 01 10 -28.0 -28.0 29.17 10 14 93 67 001 135 94 82 -23-21-22 002 59 01 11 -29.6 -29.6 29.17 10 15 94 67 -003 137104 87 -22-21-22 004 60 01 12 -29.8 -29.8 29.16 9 15 93 67 000 138104 80 -22-22-22 005 61 01 13 -28.3 -28.3 29.14 11 17 90 64 000 136 84 70 -22-22-22 005 62 01 14 -25.2 -25.2 29.12 12 19 82 56 -001 131 71 54 -23-22-22 004 63 01 15 -25.1 -25.1 29.12 10 17 78 52 -002 131 75 48 -23-23-23 004 64 01 16 -28.1 -28.1 29.11 11 18 90 64 000 135 90 41 -23-23-22 007 65 01 17 -26.0 -26.0 29.09 13 19 85 59 000 132 72 46 -24-21-21 006 66 01 18 -25.5 -25.5 29.08 14 22 82 56 -002 132 69 47 -24-21-21 004 67 01 19 -24.3 -24.3 29.06 17 25 79 53 000 130 71 72 -23-21-21 004 68 01 20 -21.7 -21.7 29.06 17 24 68 41 000 126 72 77 -24-22-21 002 69 01 21 -20.1 -20.1 29.05 19 24 67 40 001 124 72 89 -23-22-22 001 70 01 22 -21.3 -21.3 29.04 20 24 74 48 000 126 79 98 -24-21-20 000 71 01 23 -21.6 -21.6 29.04 19 25 73 47 -001 126 90100 -24-21-20 002 72 02 00 -20.0 -20.0 29.04 19 24 66 40 -001 124 93102 -24-22-21 004 73 02 01 -19.2 -19.2 29.03 20 24 66 39 -002 117 99103 -23-22-22 011 74 02 02 -20.1 -20.1 29.03 19 24 68 42 -001 119100103 -24-23-22 015 75 02 03 -19.4 -19.4 29.03 17 21 63 36 -004 118109108 -23-23-22 013 76 02 04 -18.3 -18.3 29.03 16 18 61 35 -004 111114106 -22-23-24 017 77 02 05 -19.7 -19.7 29.04 16 17 72 46 -003 117110106 -23-23-23 021 78 02 06 -20.6 -20.6 29.04 17 18 75 49 000 122110104 -23-23-23 012 79 02 07 -20.2 -20.2 29.04 17 18 73 47 000 119108102 -23-23-22 012 80 02 08 -19.3 -19.3 29.03 16 17 69 43 001 120116102 -23-23-23 005 81 02 09 -19.2 -19.2 29.03 15 17 68 42 001 119120107 -23-23-23 006 82 02 10 -18.8 -18.8 29.04 15 16 70 43 -002 122125116 -22-23-23 004 83 02 11 -19.8 -19.8 29.04 17 18 81 55 000 122118110 -22-22-22 006 84 02 12 -20.7 -20.7 29.05 17 18 77 51 002 125113114 -23-22-22 003 85 02 13 -20.3 -20.3 29.05 16 18 75 48 002 124116113 -24-23-22 001 86 02 14 -20.5 -20.5 29.03 17 20 77 51 003 124111112 -24-23-22 003 87 02 15 -20.8 -20.8 29.02 19 23 79 53 -003 123102107 -24-22-22 001 88 02 16 -20.3 -20.3 29.00 21 25 75 49 -002 113100102 -24-22-22 015 89 02 17 -20.1 -20.1 29.00 22 26 78 51 -002 110100100 -24-22-22 027 90 02 18 -20.3 -20.3 28.98 23 28 79 53 -001 110 99101 -24-22-23 030 91 02 19 -20.2 -20.2 28.97 23 27 79 52 -004 109100101 -24-23-23 029 92 02 20 -20.7 -20.7 28.95 24 28 82 56 -001 109 99101 -25-23-23 036 93 02 21 -20.6 -20.6 28.93 25 31 81 55 -005 109101102 -25-24-23 041 94 02 22 -20.2 -20.2 28.92 27 32 79 52 -007 107103101 -25-24-23 043 95 02 23 -20.0 -20.0 28.91 28 34 79 53 -005 107103102 -24-25-23 052 96 03 00 -19.8 -19.8 28.88 30 36 81 54 -004 106103102 -24-24-23 066 97 03 01 -19.3 -19.3 28.86 31 38 79 53 -010 105103104 -24-25-23 066 98 03 02 -19.1 -19.1 28.84 31 39 76 50 -008 104103103 -24-25-24 067 99 03 03 -18.9 -18.9 28.83 31 38 74 48 -007 103104102 -23-24-25 068 100 03 04 -20.8 -22.6 28.81 31 38 75 49 -007 102103100 -23-24-24 063 101 03 05 -20.2 -22.1 28.81 31 38 73 47 -003 101104101 -22-23-24 062 102 03 06 -19.7 -21.6 28.80 31 38 72 46 -002 100105100 -22-23-24 062 103 03 07 -19.4 -21.3 28.79 31 37 72 46 -002 100105100 -21-23-24 058 104 03 08 -19.1 -21.1 28.78 30 37 73 46 -002 99105102 -21-22-23 043 105 03 09 -18.8 -20.8 28.77 31 38 73 47 -002 99104102 -21-22-23 037 106 03 10 -18.4 -20.5 28.76 31 38 74 48 -001 98104102 -20-22-23 044 107 03 11 -18.3 -20.3 28.75 30 38 74 48 -002 97103103 -20-22-23 042 108 03 12 -17.9 -20.0 28.74 30 38 73 47 -001 97103103 -20-21-22 040 109 03 13 -17.5 -19.7 28.73 32 41 73 46 001 96102103 -19-21-22 037 110 03 14 -16.7 -19.0 28.71 31 42 72 46 000 94100104 -19-20-21 037 111 03 15 -16.7 -19.1 28.69 32 41 71 44 001 94100104 -19-20-21 031 112 03 16 -16.6 -19.0 28.68 33 43 71 45 002 94101103 -18-20-21 031 113 03 17 -16.7 -19.1 28.68 34 43 71 45 001 94101104 -19-20-21 034 114 03 18 -16.9 -19.3 28.68 33 42 73 47 002 94102103 -19-20-22 029 115 03 19 -17.1 -19.5 28.68 33 41 73 47 002 95102104 -19-20-22 024 116 03 20 -17.1 -19.4 28.69 33 41 73 47 002 95102103 -19-20-22 027 117 03 21 -17.3 -19.6 28.69 32 40 73 46 004 95103106 -19-21-22 020 118 03 22 -17.3 -19.5 28.71 32 39 72 46 000 95104105 -19-21-22 016 119 03 23 -17.3 -19.5 28.72 30 37 72 45 000 95104103 -19-21-22 021 120 04 00 -17.3 -19.5 28.73 30 35 71 45 -002 96104102 -19-21-22 023 * 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.