Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2026-05-03/00 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 03 00 -29.1 -32.3 29.58 6 7 262 237 000 100100 88 -25-24-23 000 1 03 01 -32.2 -33.1 29.58 7 10 278 253 001 134103 85 -25-24-24 000 2 03 02 -33.6 -34.4 29.58 7 12 280 254 000 137115 85 -25-24-24 000 3 03 03 -34.4 -35.2 29.57 7 14 279 253 001 138124 85 -25-24-24 000 4 03 04 -35.3 -36.1 29.58 6 12 275 250 000 139126 86 -24-25-24 000 5 03 05 -35.6 -37.1 29.60 2 9 251 226 000 123128 86 -26-25-24 000 6 03 06 -35.7 -38.2 29.58 2 5 277 252 001 115129 85 -26-26-24 001 7 03 07 -35.9 -38.6 29.59 2 3 265 240 001 110129 81 -25-26-24 001 8 03 08 -36.5 -39.4 29.58 2 2 253 228 000 107129 75 -25-26-25 001 9 03 09 -37.0 -40.1 29.60 1 3 225 199 000 105129 71 -26-26-25 001 10 03 10 -38.2 -41.7 29.58 1 3 162 137 000 101129 68 -26-26-25 001 11 03 11 -40.6 -44.6 29.60 3 3 122 96 000 95130 70 -28-27-25 000 12 03 12 -42.4 -46.3 29.61 3 4 113 87 000 98122 62 -29-27-25 000 13 03 13 -43.7 -47.3 29.61 3 5 116 91 000 103120 47 -29-27-25 000 14 03 14 -44.7 -48.1 29.62 3 5 117 91 000 107119 40 -30-27-26 000 15 03 15 -45.2 -48.5 29.63 3 4 116 90 000 110119 38 -30-27-26 000 16 03 16 -45.7 -48.8 29.64 3 4 114 88 000 115117 36 -30-27-26 000 17 03 17 -46.5 -49.4 29.63 4 5 115 89 000 118117 35 -31-27-26 000 18 03 18 -47.2 -49.9 29.64 4 5 114 88 000 122114 36 -31-28-26 000 19 03 19 -47.6 -50.3 29.64 4 6 113 87 000 122109 38 -31-28-26 000 20 03 20 -48.1 -50.8 29.63 4 7 114 88 000 123105 38 -31-28-26 000 21 03 21 -48.6 -51.3 29.64 4 8 113 88 000 123112 38 -31-28-26 000 22 03 22 -48.7 -51.9 29.64 4 9 108 83 000 115116 39 -32-28-27 000 23 03 23 -48.9 -52.3 29.65 4 9 107 81 000 111112 41 -32-29-28 000 24 04 00 -49.3 -52.8 29.65 4 7 110 85 000 108100 43 -32-29-28 000 25 04 01 -49.6 -53.1 29.65 4 7 113 87 000 109 95 47 -32-29-28 000 26 04 02 -49.6 -52.6 29.66 5 8 113 88 000 118 98 48 -31-30-28 000 27 04 03 -49.4 -52.0 29.66 4 8 114 89 001 124 88 44 -31-29-28 000 28 04 04 -48.8 -51.2 29.66 4 8 112 86 000 124 88 45 -31-29-29 000 29 04 05 -48.0 -50.1 29.65 4 9 110 85 001 126 87 43 -31-29-29 000 30 04 06 -46.8 -48.7 29.65 3 7 122 97 001 127 82 42 -30-29-29 000 31 04 07 -46.1 -48.1 29.64 4 6 140 115 001 126 80 41 -29-29-29 000 32 04 08 -46.2 -48.3 29.63 4 6 152 126 001 124 77 33 -29-29-28 000 33 04 09 -46.0 -48.0 29.61 5 5 173 147 000 125 70 33 -28-28-28 000 34 04 10 -45.6 -47.5 29.60 5 5 190 165 000 128 66 32 -28-28-28 000 35 04 11 -45.4 -47.1 29.60 5 5 200 175 001 130 73 32 -28-27-28 000 36 04 12 -44.8 -46.5 29.59 5 5 206 181 001 128 71 33 -28-27-27 000 37 04 13 -44.7 -46.7 29.57 4 4 218 192 001 124 70 31 -27-27-27 000 38 04 14 -44.8 -46.7 29.55 5 5 230 205 002 126 70 29 -27-27-26 000 39 04 15 -45.3 -47.4 29.53 6 6 233 207 003 127 69 28 -26-26-26 000 40 04 16 -44.5 -46.3 29.50 6 8 228 203 004 130 67 27 -26-26-25 000 41 04 17 -43.4 -45.3 29.48 7 8 223 198 004 124 62 26 -26-26-24 000 42 04 18 -43.6 -46.3 29.45 6 6 225 199 004 112 53 26 -25-25-23 000 43 04 19 -43.4 -47.0 29.42 7 8 226 200 004 100 50 25 -25-25-23 000 44 04 20 -42.8 -46.2 29.39 7 11 224 198 003 101 44 24 -24-24-22 000 45 04 21 -42.7 -46.2 29.36 7 9 221 195 002 100 38 22 -24-23-22 000 46 04 22 -42.5 -46.0 29.33 8 10 219 194 002 101 33 21 -23-22-21 000 47 04 23 -41.4 -44.6 29.29 9 13 223 198 001 104 30 19 -23-21-20 000 48 05 00 -39.8 -42.9 29.26 10 15 224 198 001 104 25 17 -22-20-19 000 49 05 01 -38.7 -39.2 29.22 10 15 225 200 001 143 25 16 -22-19-18 000 50 05 02 -37.4 -38.1 29.19 10 16 227 201 002 140 27 15 -21-19-18 000 51 05 03 -37.1 -38.1 29.15 10 16 225 199 003 135 26 13 -20-18-18 000 52 05 04 -37.3 -38.2 29.12 9 15 224 198 004 136 28 13 -19-18-17 000 53 05 05 -36.7 -37.2 29.08 10 14 226 200 004 140 26 12 -19-17-16 000 54 05 06 -36.1 -36.7 29.05 10 14 226 201 003 140 27 12 -19-17-16 000 55 05 07 -35.3 -35.9 29.02 10 15 230 205 002 138 28 12 -18-17-16 000 56 05 08 -32.0 -32.6 28.99 10 17 233 207 002 135 26 11 -18-16-15 001 57 05 09 -30.7 -31.3 28.96 10 16 233 207 002 133 26 10 -17-16-15 001 58 05 10 -30.2 -30.9 28.94 9 15 231 205 001 133 26 10 -17-16-15 001 59 05 11 -30.4 -31.1 28.92 9 14 228 202 001 133 26 10 -17-16-15 001 60 05 12 -31.2 -31.9 28.90 9 14 228 202 002 134 25 11 -17-16-15 001 61 05 13 -32.6 -33.4 28.89 8 13 224 198 001 135 21 11 -18-15-14 001 62 05 14 -33.7 -34.4 28.87 8 12 217 191 000 136 17 12 -18-15-14 000 63 05 15 -34.0 -34.7 28.86 8 11 214 188 000 137 18 14 -17-15-14 000 64 05 16 -34.7 -35.3 28.85 7 10 218 192 001 138 19 17 -16-15-14 000 65 05 17 -36.7 -37.8 28.84 6 6 232 206 002 134 19 16 -16-15-15 000 66 05 18 -37.8 -39.2 28.83 7 8 234 209 000 132 19 32 -16-14-14 000 67 05 19 -37.7 -39.4 28.82 7 8 234 208 000 128 48 41 -16-13-14 000 68 05 20 -37.5 -39.3 28.83 6 7 237 211 000 125 21 61 -16-14-15 000 69 05 21 -37.0 -38.7 28.82 8 9 231 206 000 128 51 82 -15-14-15 000 70 05 22 -36.8 -38.5 28.82 7 8 224 198 000 127 76 88 -15-14-15 000 71 05 23 -36.1 -37.6 28.82 7 7 222 196 000 129 80 96 -14-14-15 000 72 06 00 -35.8 -37.3 28.83 6 6 213 188 000 127 83100 -14-15-15 000 73 06 01 -35.5 -36.6 28.83 6 6 203 177 000 134 87107 -15-15-15 000 74 06 02 -35.3 -36.8 28.83 6 6 184 158 000 129 95105 -16-15-14 000 75 06 03 -32.9 -33.9 28.83 6 13 145 120 -001 137109116 -15-14-14 000 76 06 04 -31.3 -32.9 28.83 5 9 98 73 002 122103110 -15-13-14 001 77 06 05 -31.4 -33.2 28.83 4 9 106 81 000 117 89115 -12-13-14 001 78 06 06 -30.8 -32.8 28.85 3 9 66 41 000 113102119 -15-14-14 001 79 06 07 -29.0 -31.5 28.85 0 5 192 166 001 105112120 -13-14-15 003 80 06 08 -27.1 -29.8 28.86 4 4 163 138 001 102108119 -15-14-14 003 81 06 09 -25.7 -28.3 28.88 5 6 166 140 000 101107114 -15-14-13 003 82 06 10 -23.5 -25.4 28.89 6 17 169 144 001 108100112 -13-13-13 002 83 06 11 -22.0 -23.2 28.91 6 16 176 150 000 115104107 -12-13-14 003 84 06 12 -21.1 -21.8 28.92 7 7 191 165 001 119111113 -11-12-13 003 85 06 13 -20.2 -20.8 28.93 7 9 196 170 000 121110104 -12-12-13 003 86 06 14 -21.5 -22.2 28.95 7 7 167 141 002 121107103 -11-12-13 001 87 06 15 -19.6 -20.2 28.95 5 5 162 137 001 119110109 -11-12-13 003 88 06 16 -20.7 -21.0 28.96 6 6 186 161 000 120109109 -11-12-13 004 89 06 17 -22.8 -23.5 28.96 7 7 190 165 000 123105101 -11-11-12 001 90 06 18 -24.2 -24.9 28.97 7 7 190 164 000 125108100 -11-11-12 000 91 06 19 -25.0 -25.8 28.98 7 7 194 168 001 126108104 -11-11-12 000 92 06 20 -23.9 -24.6 28.98 7 7 205 180 000 125102 95 -11-11-13 000 93 06 21 -26.8 -27.4 28.98 7 7 220 195 001 129 99 93 -10-11-12 000 94 06 22 -28.2 -28.9 28.99 7 11 229 203 000 131 90 92 -11-11-11 000 95 06 23 -26.7 -27.4 28.98 8 16 234 208 002 129 84 88 -11-10-11 000 96 07 00 -22.1 -22.7 28.98 9 17 236 210 001 123 79 83 -12-10-11 000 97 07 01 -18.9 -19.3 28.98 12 20 233 207 000 119 76 80 -12-10-10 000 98 07 02 -18.1 -18.5 28.98 12 20 232 206 000 119 74 79 -13-10-10 000 99 07 03 -19.8 -20.2 28.98 12 19 236 211 000 121 74 78 -13-10-10 000 100 07 04 -22.0 -22.5 28.98 12 18 238 212 001 124 72 77 -13-10-10 000 101 07 05 -22.8 -23.2 28.98 12 17 239 213 001 124 74 77 -14-10-10 000 102 07 06 -23.1 -23.5 28.99 11 16 241 216 001 125 75 79 -13-10-10 000 103 07 07 -23.3 -23.8 29.00 10 16 240 214 001 125 78 77 -13-10-10 000 104 07 08 -23.6 -24.0 29.00 10 15 240 214 002 125 81 70 -14-10-10 000 105 07 09 -23.7 -24.1 29.01 10 15 240 215 002 126 75 71 -12-10-10 000 106 07 10 -23.5 -24.0 29.02 9 15 237 212 003 125 76 71 -12 -9 -9 000 107 07 11 -23.3 -23.7 29.03 9 14 234 209 003 125 80 78 -11-10-10 000 108 07 12 -23.0 -23.5 29.03 10 13 235 209 003 125 73 93 -11 -9 -9 000 109 07 13 -23.3 -23.7 29.03 10 14 232 206 002 125 68 75 -10 -9 -9 000 110 07 14 -23.9 -24.4 29.03 11 15 231 205 001 126 65 74 -10 -9 -9 000 111 07 15 -24.0 -24.5 29.03 10 16 226 200 000 126 64 70 -10 -9 -9 000 112 07 16 -23.5 -24.0 29.03 10 17 227 201 000 125 62 65 -9 -9 -9 000 113 07 17 -22.8 -23.3 29.04 10 18 228 202 -001 124 57 63 -9 -9 -9 000 114 07 18 -22.1 -22.6 29.04 9 17 227 201 000 123 55 52 -9 -9 -9 000 115 07 19 -21.9 -22.4 29.05 9 18 233 207 000 123 56 42 -10 -9-10 000 116 07 20 -22.4 -22.9 29.05 9 16 238 213 001 124 48 39 -10 -9 -9 000 117 07 21 -22.2 -22.7 29.05 10 17 242 217 001 124 42 40 -10 -9 -9 000 118 07 22 -22.1 -22.6 29.04 8 15 236 211 003 123 46 35 -10-10 -9 000 119 07 23 -22.2 -22.7 29.04 9 12 236 210 000 124 48 31 -12 -9 -9 000 120 08 00 -23.4 -23.9 29.05 9 11 237 212 -001 125 50 32 -14-10 -9 000 * 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.