Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2026-11-12/12 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 12 12 -7.8 -11.4 29.04 4 5 110 85 000 69 55 55 -8 -8 -9 000 1 12 13 -7.2 -11.1 29.04 3 6 123 97 000 76 56 50 -8 -8 -8 000 2 12 14 -6.6 -10.8 29.03 3 6 143 117 000 74 53 46 -7 -7 -8 000 3 12 15 -6.2 -10.4 29.03 3 5 157 132 000 73 47 45 -7 -6 -7 000 4 12 16 -5.8 -9.6 29.02 4 5 183 157 000 74 39 39 -6 -5 -6 000 5 12 17 -5.8 -8.9 29.02 6 8 196 170 001 79 31 38 -5 -5 -6 000 6 12 18 -6.2 -8.8 29.02 7 11 199 174 002 83 32 36 -4 -4 -5 000 7 12 19 -6.9 -9.5 29.01 8 13 205 180 002 83 42 33 -3 -4 -5 000 8 12 20 -7.7 -10.0 29.00 8 13 201 175 -004 85 42 29 -3 -3 -4 000 9 12 21 -8.7 -10.3 28.98 8 9 189 163 -007 94 36 39 -3 -3 -4 000 10 12 22 -9.4 -11.8 28.97 8 16 180 154 001 84 52 30 -4 -4 -4 000 11 12 23 -10.6 -12.6 28.98 8 20 144 118 -006 90 42 35 -3 -4 -4 000 12 13 00 -12.6 -13.0 28.97 7 18 121 96 -006 111 43 49 -4 -4 -5 000 13 13 01 -12.5 -12.9 28.96 8 16 122 96 -001 112 82 76 -4 -4 -5 000 14 13 02 -12.4 -12.9 28.98 7 19 108 83 000 112105 86 -4 -5 -6 000 15 13 03 -7.7 -8.4 29.00 11 24 72 47 -007 102 97102 -6 -6 -7 003 16 13 04 -6.9 -7.5 29.01 14 25 85 60 002 102102 81 -6 -7 -8 023 17 13 05 -8.3 -9.3 29.02 14 26 85 60 000 100 97 92 -7 -7 -8 000 18 13 06 -8.2 -9.6 29.00 14 25 82 56 000 97 98 92 -7 -7 -8 000 19 13 07 -8.3 -9.8 29.00 14 24 86 60 000 95 96 90 -8 -8 -9 000 20 13 08 -8.2 -9.8 29.00 14 23 88 62 000 94 95 93 -8 -8 -9 001 21 13 09 -7.8 -9.5 28.99 14 22 87 61 000 93 96 94 -8 -8 -9 001 22 13 10 -7.1 -8.7 28.99 14 22 81 56 -001 93102 95 -8 -8 -9 002 23 13 11 -6.0 -7.5 28.98 14 23 73 48 000 93105 99 -7 -8 -9 005 24 13 12 -5.0 -6.7 28.98 15 21 70 44 000 89101110 -6 -8 -9 010 25 13 13 -4.5 -6.1 28.98 14 19 67 41 000 91101107 -6 -7 -8 025 26 13 14 -4.3 -6.1 28.98 12 17 59 34 000 89100108 -6 -7 -8 025 27 13 15 -4.1 -5.8 28.97 13 18 67 41 -002 89100105 -5 -7 -8 025 28 13 16 -3.8 -5.4 28.96 12 18 69 44 -001 90101107 -5 -6 -8 019 29 13 17 -3.6 -5.2 28.95 12 19 70 44 -003 90100106 -5 -6 -7 024 30 13 18 -3.4 -5.0 28.94 10 16 71 45 -004 89100102 -4 -6 -7 012 31 13 19 -3.2 -4.5 28.93 12 17 71 45 -002 91101103 -4 -6 -7 017 32 13 20 -3.2 -4.3 28.92 12 18 62 36 -004 93102103 -4 -5 -7 020 33 13 21 -4.4 -5.7 28.92 10 17 61 35 -002 93 91 99 -5 -6 -7 005 34 13 22 -4.0 -4.8 28.91 7 14 69 43 -001 97104110 -5 -6 -7 048 35 13 23 -4.0 -5.0 28.91 14 23 71 45 -001 95106110 -5 -6 -7 110 36 14 00 -4.1 -4.9 28.91 11 14 40 14 -001 97105110 -5 -6 -7 026 37 14 01 -5.1 -5.4 28.93 10 15 28 3 000 103103107 -5 -6 -7 007 38 14 02 -5.8 -6.1 28.94 9 15 55 30 -001 104 91 84 -6 -7 -8 001 39 14 03 -6.1 -6.8 28.94 9 17 68 42 -003 100 93 86 -5 -6 -8 001 40 14 04 -6.7 -7.1 28.94 9 17 77 51 -001 104 96 89 -5 -6 -8 001 41 14 05 -6.5 -7.0 28.94 10 16 79 54 -003 102102 93 -6 -7 -8 014 42 14 06 -7.9 -8.2 28.95 8 16 72 46 -001 107102 83 -6 -7 -7 000 43 14 07 -5.9 -6.9 28.95 10 13 57 31 000 97105 93 -7 -7 -8 003 44 14 08 -6.0 -7.3 28.94 9 14 58 32 -002 94 92101 -7 -7 -8 002 45 14 09 -6.0 -7.6 28.94 9 14 56 30 000 92102 88 -7 -8 -8 000 46 14 10 -5.5 -7.1 28.93 7 12 58 32 -001 92107 98 -7 -8 -9 000 47 14 11 -5.2 -6.4 28.93 5 9 43 18 000 95104112 -6 -7 -8 049 48 14 12 -4.7 -6.0 28.93 3 8 49 23 -001 93107112 -6 -7 -8 039 49 14 13 -4.4 -5.6 28.92 3 7 51 25 000 94107112 -5 -7 -8 033 50 14 14 -4.2 -5.4 28.92 3 5 358 332 000 94104110 -5 -7 -8 119 51 14 15 -4.2 -6.5 28.92 3 6 332 307 000 85 94105 -5 -7 -8 035 52 14 16 -4.1 -7.1 28.92 3 7 37 12 000 81 91105 -5 -7 -8 009 53 14 17 -4.1 -6.8 28.92 3 5 53 27 -002 82 91109 -5 -7 -8 005 54 14 18 -4.2 -6.8 28.91 1 3 71 45 -001 83 88106 -5 -7 -8 008 55 14 19 -4.2 -6.8 28.91 1 1 137 112 001 84 89109 -5 -7 -8 007 56 14 20 -4.5 -6.3 28.90 3 3 192 166 000 90 90107 -6 -7 -7 026 57 14 21 -4.7 -6.5 28.89 4 5 206 181 -002 90 94110 -6 -6 -7 006 58 14 22 -6.1 -7.5 28.88 6 7 212 187 000 92 97105 -5 -6 -7 003 59 14 23 -6.3 -7.2 28.88 6 9 200 175 000 99101101 -5 -6 -7 002 60 15 00 -8.9 -9.2 28.89 5 7 174 148 000 108101102 -5 -6 -7 001 61 15 01 -10.9 -11.0 28.89 2 6 145 119 -001 111 97 99 -5 -6 -7 000 62 15 02 -10.6 -10.8 28.88 2 6 179 154 000 110 94 83 -5 -6 -7 000 63 15 03 -11.0 -11.4 28.88 3 5 187 162 000 110 95 76 -5 -6 -7 000 64 15 04 -11.7 -12.2 28.88 3 3 201 175 -003 111100 77 -5 -6 -7 000 65 15 05 -11.6 -12.1 28.87 3 3 208 182 000 111100 80 -5 -6 -7 000 66 15 06 -13.3 -13.6 28.87 4 4 214 188 001 113 90 79 -5 -6 -7 000 67 15 07 -12.4 -12.5 28.88 3 3 199 173 000 112 90 80 -6 -6 -7 000 68 15 08 -10.2 -11.2 28.89 3 4 192 166 000 101 86 84 -6 -6 -7 000 69 15 09 -8.1 -9.3 28.89 3 4 154 129 -001 97 83 87 -6 -6 -7 000 70 15 10 -7.3 -8.5 28.90 3 3 120 95 000 97 85 90 -6 -6 -7 000 71 15 11 -6.9 -8.0 28.90 3 3 99 74 000 97 84 92 -6 -6 -7 000 72 15 12 -6.9 -8.1 28.91 1 1 109 83 000 97 84 95 -6 -6 -6 000 73 15 13 -6.5 -7.8 28.92 2 2 150 124 001 96 85 97 -6 -6 -6 000 74 15 14 -6.0 -7.8 28.93 2 3 165 139 000 91 83 97 -6 -5 -6 000 75 15 15 -5.5 -7.6 28.93 2 2 175 150 000 89 81 95 -5 -5 -6 000 76 15 16 -5.2 -7.3 28.93 2 2 193 167 000 88 80 95 -5 -5 -6 000 77 15 17 -4.9 -7.0 28.93 3 5 204 178 000 87 79 96 -5 -5 -6 000 78 15 18 -4.9 -6.8 28.94 3 7 213 188 001 87 78 95 -5 -5 -6 000 79 15 19 -5.6 -7.2 28.94 4 8 225 199 001 89 75 93 -5 -5 -6 000 80 15 20 -6.6 -7.4 28.94 5 10 236 210 001 100 70 91 -4 -5 -5 000 81 15 21 -7.5 -7.8 28.94 6 11 229 203 002 106 69 89 -4 -5 -5 000 82 15 22 -8.5 -8.9 28.93 6 12 238 212 001 108 66 86 -4 -4 -5 000 83 15 23 -10.9 -11.2 28.94 6 12 247 222 000 111 66 84 -4 -4 -5 000 84 16 00 -13.2 -13.5 28.94 6 13 255 229 000 113 65 78 -4 -4 -5 000 85 16 01 -14.5 -14.9 28.94 5 12 251 226 000 115 64 72 -4 -4 -5 000 86 16 02 -15.5 -15.9 28.93 5 11 251 226 001 116 60 67 -4 -4 -4 000 87 16 03 -15.6 -15.9 28.92 5 12 253 227 000 116 59 62 -4 -4 -4 000 88 16 04 -14.5 -14.7 28.92 4 12 251 225 000 115 58 57 -5 -4 -4 000 89 16 05 -13.7 -14.0 28.92 5 11 259 233 000 114 54 55 -5 -4 -4 000 90 16 06 -12.7 -12.9 28.91 5 11 254 228 001 113 49 56 -5 -4 -4 000 91 16 07 -11.7 -11.8 28.91 5 9 251 225 000 112 46 53 -6 -4 -4 000 92 16 08 -10.8 -11.0 28.90 4 8 244 218 000 111 48 51 -6 -5 -5 000 93 16 09 -10.2 -10.3 28.90 2 5 246 220 000 110 47 51 -7 -5 -5 000 94 16 10 -9.4 -10.1 28.91 2 3 216 191 000 103 49 49 -7 -6 -6 000 95 16 11 -9.2 -10.7 28.92 1 1 165 139 000 96 51 48 -7 -6 -6 000 96 16 12 -8.3 -10.2 28.92 0 1 164 138 000 92 58 49 -6 -6 -6 000 97 16 13 -7.1 -9.0 28.93 0 3 216 191 000 91 82 49 -6 -6 -7 000 98 16 14 -6.5 -8.8 28.93 1 5 117 92 000 88106 54 -6 -6 -7 000 99 16 15 -6.0 -8.2 28.93 1 5 87 62 000 88102 55 -5 -6 -6 000 100 16 16 -5.8 -8.0 28.93 3 3 87 62 000 87 91 61 -5 -6 -6 000 101 16 17 -6.1 -8.2 28.94 6 6 80 55 000 88 96 61 -5 -6 -7 000 102 16 18 -6.4 -8.4 28.95 7 8 76 51 000 89 99 62 -5 -6 -7 000 103 16 19 -6.3 -8.3 28.96 8 10 76 51 000 89 99 60 -5 -5 -7 000 104 16 20 -6.6 -8.4 28.96 10 11 77 52 -001 91 97 55 -5 -5 -7 000 105 16 21 -7.0 -8.7 28.97 10 12 74 48 -001 92 97 50 -6 -5 -7 000 106 16 22 -7.5 -9.0 28.98 11 13 74 48 000 94 99 48 -6 -6 -7 000 107 16 23 -7.7 -9.2 28.99 12 15 75 50 000 95100 48 -6 -6 -7 000 108 17 00 -7.7 -9.1 28.99 13 16 75 49 -001 96102 53 -7 -6 -7 000 109 17 01 -7.8 -9.3 29.00 14 18 75 50 -001 95106 61 -7 -7 -8 000 110 17 02 -8.3 -9.8 29.00 15 19 77 51 -001 95107 69 -8 -7 -8 000 111 17 03 -8.7 -10.7 29.00 16 22 77 52 -001 92108 78 -8 -8 -8 000 112 17 04 -8.9 -10.8 29.01 17 23 81 55 -001 92108 79 -9 -8 -8 000 113 17 05 -8.4 -9.7 29.01 15 19 77 51 -002 97108 80 -8 -7 -8 000 114 17 06 -8.9 -10.0 29.01 17 20 77 51 -003 99108 68 -8 -8 -8 000 115 17 07 -9.1 -10.1 29.01 17 20 74 49 -001 101108 49 -8 -8 -9 000 116 17 08 -7.9 -8.9 29.01 15 18 72 46 -002 100108 47 -7 -8 -9 000 117 17 09 -6.2 -7.3 29.00 15 18 67 41 -001 97108 79 -7 -8 -9 000 118 17 10 -5.0 -6.5 29.00 16 20 53 28 -002 92104112 -6 -7 -8 000 119 17 11 -4.7 -6.1 29.01 16 20 45 20 -002 93107112 -6 -7 -8 000 120 17 12 -4.6 -6.0 29.01 16 20 42 16 -001 92107112 -6 -7 -8 000 * 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.