Halley site lat/lon = (-75.4330,-26.2170) cell lat/lon = (-75.4273,-26.2060) Forecast initialized at 2025-08-01/00 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 01 00 -42.3 -49.6 29.21 1 1 60 34 000 50 46 43 -29-26-26 000 1 01 01 -29.2 -29.2 29.20 2 2 78 52 003 132 47 39 -28-26-26 000 2 01 02 -28.6 -28.6 29.20 3 3 101 75 000 135 46 38 -29-26-26 000 3 01 03 -29.1 -29.1 29.19 5 5 88 62 000 135 47 34 -28-26-26 000 4 01 04 -26.5 -26.5 29.22 2 2 66 39 000 133 47 34 -27-26-26 000 5 01 05 -27.0 -27.0 29.21 2 2 105 79 000 133 54 36 -27-26-26 000 6 01 06 -28.6 -28.6 29.22 3 3 122 96 000 135 66 36 -27-26-26 001 7 01 07 -28.6 -28.6 29.20 3 3 124 98 000 135 79 35 -27-26-26 001 8 01 08 -28.5 -28.5 29.20 5 5 106 80 -001 134 78 33 -26-26-25 000 9 01 09 -27.1 -27.1 29.18 5 5 96 70 -001 132 88 32 -26-26-25 000 10 01 10 -25.2 -25.2 29.18 6 6 85 59 000 130108 32 -26-26-25 000 11 01 11 -23.5 -23.5 29.17 8 9 73 47 000 128123 30 -25-26-25 001 12 01 12 -22.5 -22.5 29.17 9 11 72 46 000 126128 32 -25-25-26 001 13 01 13 -22.1 -22.1 29.17 8 11 73 47 -003 118122 38 -24-25-26 005 14 01 14 -23.6 -23.6 29.16 9 11 84 57 000 125111 65 -23-24-25 009 15 01 15 -24.9 -24.9 29.16 11 13 81 55 000 124112 81 -23-24-25 012 16 01 16 -25.4 -25.4 29.16 12 15 82 56 000 130118 90 -24-25-26 007 17 01 17 -25.0 -25.0 29.17 13 16 76 50 -002 130124 81 -25-25-26 004 18 01 18 -24.1 -24.1 29.17 13 15 70 44 -001 129127 62 -25-26-26 002 19 01 19 -23.2 -23.2 29.16 13 15 64 38 -005 127129 72 -26-26-27 002 20 01 20 -22.6 -22.6 29.14 13 15 65 39 -002 125121 88 -25-26-28 005 21 01 21 -23.9 -23.9 29.15 14 15 73 47 -004 123112101 -26-26-27 011 22 01 22 -25.5 -25.5 29.15 16 17 78 52 -002 131115103 -27-27-27 014 23 01 23 -26.0 -26.0 29.16 16 17 80 54 -002 132115104 -27-27-27 007 24 02 00 -25.1 -25.1 29.15 16 17 78 52 000 130114102 -27-27-27 006 25 02 01 -24.8 -24.8 29.16 15 16 76 50 002 130113111 -27-27-27 004 26 02 02 -24.8 -24.8 29.16 15 17 77 51 002 130116125 -27-27-27 004 27 02 03 -25.1 -25.1 29.16 15 16 78 52 002 130115120 -27-27-27 004 28 02 04 -26.2 -26.2 29.16 15 16 83 56 001 132110108 -27-27-27 006 29 02 05 -27.9 -27.9 29.16 15 18 86 60 002 134106104 -28-27-27 007 30 02 06 -28.6 -28.6 29.17 15 18 86 60 001 129104 98 -28-26-27 005 31 02 07 -28.4 -28.4 29.17 14 17 80 54 001 135105 98 -29-26-27 004 32 02 08 -27.7 -27.7 29.16 13 16 78 51 001 134107105 -29-27-27 004 33 02 09 -28.6 -28.6 29.14 13 16 83 57 001 135109104 -28-26-27 004 34 02 10 -29.8 -29.8 29.13 12 17 85 58 -002 135110109 -29-27-27 004 35 02 11 -30.0 -30.0 29.14 12 16 83 57 -003 134117115 -29-28-28 006 36 02 12 -31.6 -31.6 29.13 13 17 88 62 -004 137121114 -29-28-28 006 37 02 13 -31.9 -31.9 29.13 13 16 86 60 -003 140119109 -29-29-29 004 38 02 14 -32.4 -32.4 29.13 12 15 87 61 -002 141117103 -29-29-30 004 39 02 15 -32.2 -32.2 29.11 12 15 86 59 000 141117105 -30-29-30 004 40 02 16 -31.4 -31.4 29.10 13 17 81 55 000 139114103 -30-30-30 003 41 02 17 -31.3 -31.3 29.09 14 19 80 54 000 139112101 -30-30-30 003 42 02 18 -32.2 -32.2 29.08 15 21 81 55 000 132117101 -30-30-30 004 43 02 19 -33.8 -33.8 29.07 14 19 86 60 000 128117106 -31-29-30 004 44 02 20 -34.0 -34.0 29.06 13 18 88 62 -002 127116109 -31-29-30 005 45 02 21 -32.4 -32.4 29.06 14 20 86 60 -001 133113107 -31-30-30 006 46 02 22 -31.8 -31.8 29.04 14 22 87 60 -001 140107104 -30-30-30 006 47 02 23 -31.9 -31.9 29.03 15 23 89 63 000 140107104 -30-29-30 005 48 03 00 -30.9 -30.9 29.03 16 23 88 62 000 139105105 -31-29-30 004 49 03 01 -30.1 -30.1 29.03 14 20 85 59 000 137100100 -31-30-30 004 50 03 02 -29.6 -29.6 29.02 11 16 94 68 001 136 98101 -31-30-30 003 51 03 03 -31.7 -31.7 29.02 8 12 125 99 002 139 99100 -31-30-30 002 52 03 04 -33.9 -33.9 29.02 10 10 160 134 000 143 99104 -31-30-30 003 53 03 05 -33.0 -33.0 29.01 10 12 170 144 000 142 97106 -31-29-29 003 54 03 06 -32.3 -32.3 29.00 10 15 175 149 000 140103104 -28-29-29 002 55 03 07 -30.8 -30.8 28.99 10 17 187 161 000 138 96103 -27-28-28 002 56 03 08 -30.7 -30.7 28.98 11 19 184 158 000 138 87 99 -26-26-27 002 57 03 09 -30.7 -30.7 28.97 10 18 181 155 000 138 79 93 -25-26-26 001 58 03 10 -32.5 -32.5 28.97 9 14 176 150 000 141 72 87 -25-25-25 002 59 03 11 -34.3 -34.3 28.97 8 11 173 147 002 143 67 83 -24-25-25 002 60 03 12 -34.7 -34.7 28.97 8 10 177 151 004 144 65 79 -24-24-25 002 61 03 13 -34.8 -34.8 28.97 8 9 177 151 004 144 61 75 -24-24-24 002 62 03 14 -34.5 -34.5 28.96 8 8 174 148 003 143 58 75 -23-23-24 002 63 03 15 -34.2 -34.2 28.95 8 8 172 146 003 143 58 72 -23-23-24 002 64 03 16 -33.8 -33.8 28.95 7 7 169 143 001 142 62 73 -22-23-24 002 65 03 17 -33.2 -33.2 28.93 6 6 171 145 001 141 64 73 -22-23-24 002 66 03 18 -34.1 -34.1 28.93 6 6 190 164 002 143 62 70 -23-23-23 002 67 03 19 -34.1 -34.1 28.92 6 6 191 165 000 142 59 65 -23-23-23 002 68 03 20 -31.4 -31.4 28.92 7 9 198 172 000 139 60 61 -24-23-23 002 69 03 21 -31.3 -31.3 28.92 6 9 186 159 -002 138 62 58 -24-23-23 002 70 03 22 -32.2 -32.2 28.91 6 7 188 162 -001 140 63 55 -24-23-24 002 71 03 23 -33.3 -33.3 28.89 6 6 165 139 -002 141 63 55 -23-23-24 002 72 04 00 -33.1 -33.1 28.88 7 7 135 109 001 141 60 57 -23-23-23 002 73 04 01 -30.6 -30.6 28.87 4 4 135 108 000 137 56 58 -23-23-24 002 74 04 02 -31.7 -31.7 28.86 4 4 145 119 -001 139 51 60 -23-23-24 001 75 04 03 -33.9 -33.9 28.86 5 5 151 125 000 142 53 61 -23-23-24 002 76 04 04 -35.0 -35.0 28.83 7 7 136 109 003 144 54 62 -22-23-24 002 77 04 05 -34.2 -34.2 28.81 6 6 136 110 001 143 56 55 -23-23-24 002 78 04 06 -33.5 -33.5 28.80 6 6 152 125 002 142 55 53 -23-23-24 002 79 04 07 -31.4 -31.4 28.78 7 7 147 121 001 139 53 47 -23-23-24 002 80 04 08 -29.9 -29.9 28.76 7 7 148 121 001 136 54 51 -23-23-24 001 81 04 09 -30.2 -30.2 28.75 7 7 160 134 001 137 53 50 -23-23-24 001 82 04 10 -30.7 -30.7 28.73 7 7 169 143 002 138 51 48 -23-23-24 001 83 04 11 -31.0 -31.0 28.69 7 7 174 148 001 138 49 46 -22-22-23 001 84 04 12 -32.4 -32.4 28.66 8 8 177 151 000 140 48 44 -22-22-23 001 85 04 13 -33.0 -33.0 28.64 8 10 188 162 000 141 48 48 -21-22-22 002 86 04 14 -32.7 -32.7 28.61 9 13 193 167 001 141 48 50 -21-22-22 002 87 04 15 -31.8 -31.8 28.58 9 17 192 166 -001 140 47 50 -21-21-22 002 88 04 16 -30.0 -30.0 28.55 9 16 196 170 000 137 44 49 -21-21-21 002 89 04 17 -30.1 -30.1 28.52 9 16 196 170 000 137 42 49 -20-20-21 002 90 04 18 -30.4 -30.4 28.50 9 16 194 168 000 137 39 51 -20-20-20 002 91 04 19 -29.3 -29.3 28.47 9 18 201 175 000 136 39 51 -20-19-20 001 92 04 20 -27.9 -27.9 28.44 10 19 198 172 001 134 38 50 -21-19-19 001 93 04 21 -27.2 -27.2 28.42 10 19 200 174 001 133 35 48 -21-18-19 001 94 04 22 -26.7 -26.7 28.39 10 19 206 180 003 132 30 45 -21-18-19 000 95 04 23 -26.2 -26.2 28.37 10 19 206 179 003 131 37 44 -21-20-19 000 96 05 00 -26.7 -26.7 28.34 10 17 201 175 002 132 36 43 -21-20-19 000 97 05 01 -27.0 -27.0 28.31 10 17 207 181 000 133 38 42 -21-20-19 000 98 05 02 -26.3 -26.3 28.27 10 18 209 183 000 132 39 42 -21-20-19 000 99 05 03 -25.6 -25.6 28.24 11 18 211 185 000 131 38 41 -20-19-18 000 100 05 04 -25.0 -25.0 28.21 12 18 218 192 000 130 39 42 -20-19-19 000 101 05 05 -24.6 -24.6 28.18 13 20 219 193 000 129 49 44 -20-19-18 000 102 05 06 -23.9 -23.9 28.16 15 22 227 201 001 128 55 49 -21-19-18 000 103 05 07 -23.3 -23.3 28.14 16 23 224 198 002 128 48 43 -21-19-18 000 104 05 08 -23.5 -23.5 28.12 16 24 223 196 001 128 49 40 -21-18-17 000 105 05 09 -23.7 -23.7 28.11 15 23 222 195 001 128 47 38 -20-18-17 000 106 05 10 -24.0 -24.0 28.09 14 21 222 196 002 129 41 36 -19-17-16 000 107 05 11 -24.1 -24.1 28.08 15 21 232 206 001 129 40 32 -20-17-16 000 108 05 12 -24.5 -24.5 28.07 15 22 233 207 003 129 41 30 -23-17-16 000 109 05 13 -24.9 -24.9 28.07 15 22 230 203 002 130 45 32 -23-17-16 000 110 05 14 -25.0 -25.0 28.07 14 20 229 203 -001 130 50 39 -23-18-16 000 111 05 15 -25.1 -25.1 28.08 15 21 234 207 -001 130 52 41 -23-18-17 000 112 05 16 -25.5 -25.5 28.09 15 21 230 204 000 131 55 48 -24-18-16 000 113 05 17 -25.8 -25.8 28.09 14 20 226 199 000 131 59 53 -23-17-16 000 114 05 18 -26.0 -26.0 28.08 12 18 219 193 000 131 56 62 -20-16-15 000 115 05 19 -25.9 -25.9 28.09 12 17 228 202 004 131 53 61 -19-16-16 000 116 05 20 -25.6 -25.6 28.09 13 17 227 201 002 131 79 29 -21-16-16 000 117 05 21 -24.4 -24.4 28.10 14 15 228 202 000 129119 60 -20-18-15 000 118 05 22 -22.6 -22.6 28.11 11 11 219 193 -003 126119109 -20-18-16 000 119 05 23 -21.7 -21.7 28.12 10 11 206 180 -001 120118 98 -20-17-15 000 120 06 00 -20.6 -20.6 28.13 10 11 206 179 000 115117 97 -20-17-15 000 * 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.