Halley site lat/lon = (-75.4330,-26.2170) cell lat/lon = (-75.4273,-26.2060) Forecast initialized at 2025-07-31/00 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 31 00 -41.9 -48.1 28.92 4 4 116 89 000 68 41 88 -31-26-26 000 1 31 01 -31.9 -31.9 28.92 6 6 116 90 000 140 37 77 -29-26-26 001 2 31 02 -32.7 -32.7 28.93 7 7 124 98 000 141 35 70 -29-26-26 001 3 31 03 -31.2 -31.2 28.93 5 5 118 92 000 139 34 63 -28-26-26 001 4 31 04 -31.5 -31.5 28.96 6 6 129 103 000 139 35 58 -27-27-26 002 5 31 05 -31.4 -31.4 28.98 9 10 109 83 002 140 34 56 -29-27-27 003 6 31 06 -31.5 -31.5 28.97 4 4 144 118 000 139 26 54 -26-26-27 002 7 31 07 -34.0 -34.0 28.99 7 7 130 104 000 143 30 53 -27-26-26 003 8 31 08 -31.6 -31.6 28.97 4 4 137 110 000 139 32 51 -27-26-26 003 9 31 09 -30.3 -30.3 28.99 4 4 134 108 000 137 32 49 -27-26-26 002 10 31 10 -30.7 -30.7 29.02 6 6 131 105 000 138 30 45 -27-27-26 002 11 31 11 -31.0 -31.0 29.04 7 7 127 101 000 139 31 39 -26-26-27 003 12 31 12 -31.2 -31.2 29.04 7 8 115 88 000 139 36 37 -27-27-26 003 13 31 13 -31.5 -31.5 29.06 8 12 122 95 000 140 34 36 -26-27-27 003 14 31 14 -30.0 -30.0 29.07 9 14 120 94 000 138 32 35 -28-27-26 002 15 31 15 -29.3 -29.3 29.09 10 14 110 84 000 137 29 32 -28-26-26 001 16 31 16 -30.0 -30.0 29.11 10 14 105 78 000 138 31 35 -28-26-26 002 17 31 17 -29.6 -29.6 29.12 10 15 104 77 000 137 35 41 -29-26-25 002 18 31 18 -31.5 -31.5 29.14 8 14 121 94 000 140 42 43 -28-26-25 002 19 31 19 -31.1 -31.1 29.16 8 12 113 87 000 139 44 42 -28-26-25 003 20 31 20 -30.6 -30.6 29.17 8 12 107 81 000 138 46 41 -27-25-25 003 21 31 21 -30.3 -30.3 29.17 9 13 102 75 001 138 54 42 -27-25-24 003 22 31 22 -28.9 -28.9 29.18 8 11 94 68 000 136 64 42 -26-25-24 002 23 31 23 -27.8 -27.8 29.20 8 10 92 66 000 134 72 42 -26-25-24 002 24 01 00 -27.9 -27.9 29.21 7 8 98 72 000 134 74 43 -26-25-24 001 25 01 01 -29.4 -29.4 29.24 6 7 107 80 000 136 64 41 -26-24-24 002 26 01 02 -30.5 -30.5 29.24 7 7 110 84 001 138 48 38 -25-24-24 002 27 01 03 -30.5 -30.5 29.24 7 8 106 80 001 138 45 36 -25-24-24 003 28 01 04 -27.9 -27.9 29.23 7 9 91 65 000 134 44 34 -25-24-24 002 29 01 05 -26.0 -26.0 29.22 7 9 83 57 -002 131 43 33 -25-24-24 001 30 01 06 -24.1 -24.1 29.22 6 8 80 54 000 129 33 33 -25-24-24 001 31 01 07 -23.3 -23.3 29.22 6 7 86 59 000 128 54 33 -25-24-24 001 32 01 08 -24.8 -24.8 29.23 7 8 98 72 -001 130127 33 -24-24-24 002 33 01 09 -24.9 -24.9 29.22 9 10 93 67 -001 130127 32 -23-24-24 005 34 01 10 -24.9 -24.9 29.21 9 11 88 62 000 130119 32 -24-24-24 003 35 01 11 -24.7 -24.7 29.21 9 12 87 61 000 130109 33 -24-23-24 002 36 01 12 -22.6 -22.6 29.19 10 14 79 52 -001 127113 29 -23-23-24 002 37 01 13 -20.6 -20.6 29.17 12 15 74 48 000 124125 26 -23-23-24 002 38 01 14 -19.6 -19.6 29.17 12 14 72 46 -003 123125 26 -22-23-24 003 39 01 15 -19.2 -19.2 29.17 12 15 65 39 000 122125 32 -22-23-24 003 40 01 16 -19.3 -19.3 29.17 12 15 63 37 000 120116 62 -22-23-25 003 41 01 17 -20.1 -20.1 29.16 13 17 66 39 000 124115 82 -23-24-24 002 42 01 18 -20.2 -20.2 29.15 16 19 62 36 000 123127 44 -24-25-24 003 43 01 19 -20.7 -20.7 29.14 17 20 63 36 000 125129 47 -24-26-24 002 44 01 20 -20.5 -20.5 29.14 17 20 60 33 -002 124129 78 -24-26-25 001 45 01 21 -20.3 -20.3 29.14 17 20 59 33 -004 124128 92 -24-25-25 003 46 01 22 -19.7 -19.7 29.14 17 19 54 27 -005 114127103 -23-25-26 011 47 01 23 -19.7 -19.7 29.15 17 19 55 29 -005 109121104 -23-25-26 018 48 02 00 -20.3 -20.3 29.15 16 18 61 35 -005 111119109 -24-25-26 016 49 02 01 -20.9 -20.9 29.15 15 18 69 42 -008 115113109 -24-25-26 017 50 02 02 -21.2 -21.2 29.14 15 17 71 44 -001 116113109 -24-25-26 014 51 02 03 -21.3 -21.3 29.15 15 16 72 46 000 118115112 -25-25-26 010 52 02 04 -22.5 -22.5 29.17 16 17 77 51 000 127118112 -25-25-26 006 53 02 05 -22.7 -22.7 29.18 17 17 77 51 002 128109121 -25-25-25 005 54 02 06 -23.5 -23.5 29.18 15 16 81 55 002 129110113 -26-25-25 006 55 02 07 -25.1 -25.1 29.18 16 18 86 59 003 131112109 -26-25-26 007 56 02 08 -26.1 -26.1 29.18 15 17 87 61 002 132114108 -26-25-26 006 57 02 09 -25.6 -25.6 29.18 14 16 80 54 000 132117109 -26-26-26 002 58 02 10 -24.8 -24.8 29.19 13 15 76 50 000 130119115 -26-26-26 002 59 02 11 -25.0 -25.0 29.19 13 15 78 52 001 131121112 -26-26-26 003 60 02 12 -25.6 -25.6 29.20 12 14 82 56 000 132115102 -27-26-27 005 61 02 13 -28.7 -28.7 29.21 12 14 94 67 -001 136114 94 -27-27-27 004 62 02 14 -29.3 -29.3 29.21 10 13 95 69 -001 137108 93 -27-27-28 004 63 02 15 -29.1 -29.1 29.20 10 13 95 69 000 136105 96 -27-27-28 005 64 02 16 -28.9 -28.9 29.20 9 12 94 68 -002 136106 97 -27-27-28 005 65 02 17 -28.6 -28.6 29.18 9 12 94 68 -001 136108 94 -27-27-28 004 66 02 18 -30.3 -30.3 29.17 9 12 105 79 000 138113101 -27-28-28 004 67 02 19 -31.7 -31.7 29.17 10 14 104 78 -002 140111 91 -28-28-29 004 68 02 20 -31.6 -31.6 29.16 10 15 101 74 -001 140107 89 -28-28-28 005 69 02 21 -31.8 -31.8 29.16 9 13 105 79 000 140109104 -28-28-28 004 70 02 22 -33.1 -33.1 29.15 7 11 119 93 001 142111112 -28-28-28 004 71 02 23 -33.5 -33.5 29.14 8 11 125 98 001 143110111 -28-28-28 004 72 03 00 -33.9 -33.9 29.14 10 13 127 100 000 144107109 -29-28-28 005 73 03 01 -33.7 -33.7 29.14 10 12 130 104 -001 142108103 -29-28-28 004 74 03 02 -33.3 -33.3 29.13 9 10 145 119 001 132105 98 -29-28-27 004 75 03 03 -31.7 -31.7 29.13 10 11 157 130 001 140111107 -29-28-28 003 76 03 04 -30.8 -30.8 29.13 9 11 168 142 002 139 95106 -29-28-28 003 77 03 05 -30.6 -30.6 29.12 9 13 186 160 002 139 94 95 -27-28-28 003 78 03 06 -29.5 -29.5 29.11 10 16 192 166 003 137 80 91 -25-27-28 003 79 03 07 -29.0 -29.0 29.10 9 15 196 170 002 136 66 86 -24-25-27 002 80 03 08 -27.9 -27.9 29.09 9 15 200 174 -002 135 57 77 -24-24-25 002 81 03 09 -28.0 -28.0 29.09 8 14 206 180 -001 135 50 70 -24-23-24 002 82 03 10 -27.0 -27.0 29.09 9 13 216 190 -001 133 47 66 -25-23-23 002 83 03 11 -24.6 -24.6 29.08 9 14 225 198 006 130 50 62 -25-23-22 002 84 03 12 -27.0 -27.0 29.07 8 12 209 182 004 133 49 58 -24-23-22 001 85 03 13 -28.5 -28.5 29.06 7 8 207 180 000 135 45 51 -24-22-21 002 86 03 14 -24.6 -24.6 29.04 8 10 233 207 000 130 42 48 -24-22-21 002 87 03 15 -22.2 -22.2 29.02 9 11 230 203 004 126 49 44 -23-23-21 000 88 03 16 -23.7 -23.7 29.02 10 14 227 201 000 129 58 41 -24-24-22 000 89 03 17 -22.0 -22.0 29.01 13 17 227 201 -002 126 69 34 -24-24-22 000 90 03 18 -21.1 -21.1 29.00 14 16 235 209 001 125 62 32 -24-23-23 000 91 03 19 -20.9 -20.9 28.98 16 18 238 212 000 123108 29 -25-25-23 000 92 03 20 -21.6 -21.6 28.96 16 18 237 211 -001 123114 29 -25-25-23 000 93 03 21 -22.0 -22.0 28.95 16 19 237 211 -001 127111 31 -26-25-24 000 94 03 22 -22.9 -22.9 28.94 16 20 235 209 000 128110 30 -27-25-24 000 95 03 23 -23.5 -23.5 28.94 15 19 230 204 000 129111 29 -27-26-25 000 96 04 00 -24.0 -24.0 28.93 13 16 226 200 000 129116 30 -28-27-25 000 97 04 01 -24.1 -24.1 28.92 12 14 226 200 001 129119 31 -28-27-25 000 98 04 02 -24.5 -24.5 28.92 11 12 219 193 001 130120 33 -27-28-25 000 99 04 03 -27.7 -27.7 28.91 9 11 204 177 002 134121 30 -27-28-24 001 100 04 04 -33.1 -33.1 28.91 7 10 179 153 003 142116 30 -27-27-23 003 101 04 05 -35.5 -35.5 28.91 6 8 159 133 004 126105 29 -27-26-23 003 102 04 06 -34.3 -34.3 28.91 6 6 151 124 006 143 74 28 -27-24-22 003 103 04 07 -33.6 -33.6 28.91 5 5 148 121 005 142 59 27 -26-24-21 003 104 04 08 -34.8 -34.8 28.91 7 7 139 112 004 144 50 26 -26-23-20 003 105 04 09 -33.8 -33.8 28.91 5 5 128 102 003 142 40 25 -25-21-19 003 106 04 10 -31.5 -31.5 28.92 3 3 147 121 001 141 41 26 -25-21-19 002 107 04 11 -30.9 -30.9 28.91 3 8 163 137 000 140 42 27 -26-21-19 001 108 04 12 -29.7 -29.7 28.90 5 12 201 175 000 137 50 26 -26-23-19 002 109 04 13 -32.8 -32.8 28.89 7 10 190 164 000 141 44 25 -25-22-19 003 110 04 14 -33.9 -33.9 28.89 6 7 173 147 000 143 41 25 -25-21-19 003 111 04 15 -32.3 -32.3 28.87 4 6 178 152 000 140 41 25 -25-21-19 003 112 04 16 -28.2 -28.2 28.87 5 7 215 189 000 134 44 25 -25-22-19 002 113 04 17 -24.0 -24.0 28.85 9 11 231 205 000 129 52 26 -26-23-20 002 114 04 18 -23.8 -23.8 28.85 10 11 233 207 001 129 65 27 -27-24-21 001 115 04 19 -24.1 -24.1 28.84 9 10 228 202 000 129 71 27 -27-24-21 000 116 04 20 -23.8 -23.8 28.84 8 9 222 196 000 128 88 28 -27-25-22 000 117 04 21 -25.2 -25.2 28.83 5 6 188 161 000 130 84 29 -27-24-21 000 118 04 22 -28.7 -28.7 28.84 5 6 164 138 000 135 90 30 -26-24-21 000 119 04 23 -29.8 -29.8 28.83 6 6 146 120 000 137 94 31 -26-24-21 002 120 05 00 -30.9 -30.9 28.82 5 6 132 106 000 138111 33 -26-26-22 002 * 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.