Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2026-02-02/00 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 02 00 -13.3 -16.4 28.58 4 7 241 215 000 75 67 60 -4 -5 -5 000 1 02 01 -15.8 -16.3 28.57 6 7 208 182 000 115 77 61 -4 -5 -6 000 2 02 02 -19.3 -20.0 28.59 3 6 178 153 000 120 77 61 -5 -5 -6 000 3 02 03 -20.6 -20.9 28.60 2 3 177 151 -001 121 69 61 -5 -5 -6 000 4 02 04 -21.8 -22.6 28.61 4 13 116 90 000 122 55 62 -8 -6 -6 000 5 02 05 -22.6 -23.4 28.60 4 19 56 30 000 124 52 67 -8 -7 -7 000 6 02 06 -23.5 -24.0 28.62 5 15 101 76 -001 125 54 66 -8 -8 -7 000 7 02 07 -22.7 -23.2 28.62 4 12 96 71 000 124 42 67 -9 -8 -8 000 8 02 08 -20.6 -22.2 28.64 2 8 80 55 000 110 40 67 -9 -8 -8 000 9 02 09 -18.5 -21.0 28.64 0 3 64 38 000 95 38 67 -8 -7 -8 000 10 02 10 -16.6 -19.9 28.66 0 3 279 253 000 88 41 66 -7 -7 -8 000 11 02 11 -15.0 -18.1 28.64 0 1 243 217 000 88 41 62 -7 -7 -8 000 12 02 12 -13.3 -16.0 28.65 0 1 257 232 000 90 40 54 -7 -7 -8 000 13 02 13 -11.5 -14.2 28.65 1 1 270 245 000 89 43 47 -7 -7 -8 000 14 02 14 -10.1 -13.1 28.66 1 1 262 237 000 85 58 48 -7 -7 -8 000 15 02 15 -9.2 -12.1 28.67 2 2 218 192 -001 85 68 55 -6 -7 -7 000 16 02 16 -8.8 -12.8 28.67 4 4 215 189 000 74 49 48 -6 -7 -6 000 17 02 17 -8.9 -11.7 28.68 4 6 211 185 000 82 36 41 -6 -6 -7 000 18 02 18 -9.5 -11.9 28.68 4 6 200 175 000 85 46 40 -6 -6 -7 000 19 02 19 -10.4 -12.5 28.68 4 7 198 173 000 90 62 46 -5 -7 -7 000 20 02 20 -11.7 -13.3 28.67 4 7 195 169 000 97 62 52 -6 -7 -6 000 21 02 21 -13.4 -14.7 28.67 4 6 188 162 000 101 59 51 -6 -6 -6 000 22 02 22 -14.7 -15.1 28.68 5 5 176 151 000 114 53 49 -6 -6 -6 000 23 02 23 -16.4 -16.9 28.68 3 4 142 116 000 116 45 48 -6 -6 -6 000 24 03 00 -17.9 -18.2 28.68 2 3 103 77 000 118 46 46 -6 -5 -6 000 25 03 01 -18.5 -18.7 28.68 1 4 89 64 000 119 50 42 -6 -6 -6 000 26 03 02 -19.2 -19.4 28.69 1 4 106 80 000 120 50 42 -6 -6 -6 000 27 03 03 -21.0 -21.2 28.71 2 5 112 87 000 122 49 76 -6 -6 -6 000 28 03 04 -20.3 -20.6 28.70 1 6 136 111 000 121 50 92 -6 -6 -6 000 29 03 05 -20.1 -20.3 28.70 1 6 168 143 000 121 56 86 -6 -6 -6 000 30 03 06 -19.8 -20.1 28.71 2 8 142 116 -001 120 78 93 -6 -7 -6 000 31 03 07 -19.5 -20.2 28.72 3 13 120 94 -001 120 68 89 -7 -7 -6 000 32 03 08 -17.3 -17.8 28.73 2 7 97 72 000 117 72 90 -7 -6 -6 000 33 03 09 -14.0 -15.2 28.74 1 5 115 90 000 104 81 96 -7 -7 -6 000 34 03 10 -11.1 -12.7 28.74 2 5 150 124 000 97 76 98 -7 -5 -5 000 35 03 11 -8.5 -10.3 28.75 7 11 77 51 000 92 72 95 -9 -5 -5 000 36 03 12 -9.5 -10.9 28.78 11 13 67 41 -001 97 81102 -11 -6 -5 000 37 03 13 -9.8 -11.2 28.80 11 13 62 36 -001 97 71106 -10 -6 -6 001 38 03 14 -8.7 -10.2 28.82 11 13 67 41 000 95 76108 -9 -8 -8 008 39 03 15 -8.8 -10.4 28.84 13 16 75 49 000 94 85 97 -10 -9 -9 007 40 03 16 -9.1 -10.8 28.85 12 17 73 48 000 94 72 54 -10 -9 -9 000 41 03 17 -8.4 -10.3 28.87 12 18 72 47 -002 91 73 64 -9 -9 -9 000 42 03 18 -7.6 -9.6 28.87 12 17 71 46 -003 90 96 75 -9 -9 -8 000 43 03 19 -7.3 -9.1 28.89 13 18 69 43 -001 91107 82 -8 -7 -8 000 44 03 20 -6.9 -8.5 28.89 13 19 70 44 -001 93101109 -7 -7 -7 006 45 03 21 -6.4 -7.7 28.91 11 18 69 44 -001 96 97110 -6 -7 -8 028 46 03 22 -6.6 -7.2 28.92 8 17 74 48 -002 102 94106 -6 -7 -8 018 47 03 23 -7.6 -7.8 28.93 6 16 93 67 000 107 91 98 -6 -6 -7 009 48 04 00 -9.2 -9.6 28.93 6 15 107 81 000 109103 97 -6 -6 -7 005 49 04 01 -7.7 -7.9 28.93 6 17 102 76 000 107106110 -6 -6 -7 010 50 04 02 -6.2 -6.5 28.93 9 18 74 48 000 104107 96 -6 -6 -7 004 51 04 03 -5.8 -6.3 28.95 10 19 76 50 -001 102106 93 -6 -6 -6 003 52 04 04 -6.3 -6.8 28.96 11 17 77 51 000 103106 97 -6 -6 -6 007 53 04 05 -6.3 -7.2 28.96 11 16 74 49 000 99106105 -6 -6 -7 006 54 04 06 -6.3 -7.3 28.97 11 19 75 49 000 98106104 -7 -6 -7 009 55 04 07 -6.5 -7.5 28.98 11 18 81 55 000 98107108 -7 -7 -7 006 56 04 08 -6.3 -7.6 28.98 13 20 74 48 -001 95105110 -7 -7 -7 008 57 04 09 -6.4 -7.7 28.99 13 20 76 50 -001 95100111 -7 -6 -7 005 58 04 10 -6.2 -7.5 29.00 14 19 77 51 000 95 98111 -7 -6 -7 004 59 04 11 -5.9 -7.2 29.01 13 18 74 49 000 94100109 -7 -7 -7 004 60 04 12 -5.6 -6.9 29.01 13 18 76 51 000 94100106 -7 -7 -7 004 61 04 13 -5.4 -6.7 29.02 12 16 75 49 000 94108105 -7 -8 -7 004 62 04 14 -4.6 -5.8 29.01 12 14 71 45 000 94107104 -6 -7 -7 002 63 04 15 -4.0 -5.3 29.01 11 13 66 40 000 92107104 -5 -7 -8 002 64 04 16 -3.9 -5.2 29.02 10 12 62 37 000 92107105 -5 -6 -7 003 65 04 17 -3.9 -5.1 29.02 10 12 59 34 000 94106108 -5 -6 -8 005 66 04 18 -3.9 -5.2 29.03 10 11 61 35 000 93106110 -5 -6 -8 005 67 04 19 -4.1 -5.3 29.03 9 11 65 40 000 94107110 -5 -7 -8 006 68 04 20 -4.3 -5.4 29.04 8 10 75 49 000 95107111 -5 -7 -7 003 69 04 21 -4.7 -5.6 29.04 8 10 80 55 000 97100111 -6 -6 -6 001 70 04 22 -5.5 -6.2 29.04 8 10 80 55 000 100 90111 -6 -6 -6 002 71 04 23 -6.3 -6.6 29.05 9 11 85 59 000 104 91110 -7 -6 -6 001 72 05 00 -6.7 -6.8 29.05 10 12 86 61 000 106 96109 -7 -7 -6 001 73 05 01 -6.9 -7.1 29.05 9 11 88 62 000 107105109 -8 -7 -7 000 74 05 02 -7.0 -7.1 29.05 8 10 90 64 000 107108109 -8 -8 -7 001 75 05 03 -7.4 -7.5 29.05 8 9 92 66 000 107108109 -8 -8 -8 001 76 05 04 -7.7 -8.7 29.05 7 9 91 65 000 99108109 -7 -8 -9 001 77 05 05 -8.1 -9.8 29.05 7 9 90 65 000 93109109 -8 -9 -8 000 78 05 06 -8.3 -10.6 29.05 6 8 98 73 000 88108110 -7 -8 -8 000 79 05 07 -7.9 -9.7 29.04 5 9 96 70 001 92101110 -7 -8 -7 000 80 05 08 -7.4 -9.1 29.04 6 9 87 62 001 93102112 -7 -7 -7 000 81 05 09 -7.3 -8.5 29.04 7 9 80 54 002 97105112 -8 -8 -7 000 82 05 10 -6.6 -7.6 29.04 7 8 76 51 001 98108110 -8 -8 -7 000 83 05 11 -5.9 -6.7 29.04 7 8 67 42 000 99108110 -7 -8 -7 000 84 05 12 -5.5 -6.4 29.04 7 7 66 40 000 97108111 -7 -8 -7 000 85 05 13 -5.3 -6.4 29.04 6 7 60 34 000 96108111 -7 -8 -8 000 86 05 14 -5.0 -6.2 29.03 6 6 60 35 000 94108111 -6 -7 -8 000 87 05 15 -4.6 -6.0 29.02 6 7 59 34 000 93107108 -6 -7 -8 000 88 05 16 -4.3 -5.7 29.03 6 6 58 32 000 92107109 -6 -7 -8 000 89 05 17 -4.0 -5.7 29.03 5 5 57 31 000 90103111 -5 -6 -8 000 90 05 18 -3.9 -5.7 29.03 4 5 58 33 000 89100111 -5 -6 -8 000 91 05 19 -4.0 -5.6 29.04 4 5 70 45 000 90 97111 -5 -6 -7 000 92 05 20 -4.4 -5.7 29.04 5 5 76 51 001 93 98111 -5 -6 -7 000 93 05 21 -4.8 -5.9 29.04 5 7 82 56 000 95 95111 -5 -6 -7 000 94 05 22 -5.3 -6.4 29.05 5 8 85 59 000 96 86111 -5 -6 -7 000 95 05 23 -5.8 -6.7 29.05 6 9 88 62 000 97 77112 -5 -6 -7 000 96 06 00 -6.1 -6.9 29.06 6 9 84 59 001 100 76112 -5 -6 -7 000 97 06 01 -6.5 -7.1 29.06 9 12 75 49 000 101 78102 -5 -6 -7 000 98 06 02 -7.3 -8.3 29.06 10 14 75 49 000 98 85105 -6 -6 -7 000 99 06 03 -8.6 -10.6 29.07 13 18 75 49 -001 92 93101 -8 -7 -7 000 100 06 04 -10.4 -12.2 29.08 12 19 85 60 000 95 99101 -9 -7 -8 000 101 06 05 -11.3 -13.0 29.10 10 17 91 65 000 96102110 -9 -8 -8 000 102 06 06 -10.0 -12.3 29.11 10 17 86 60 -001 90100110 -10 -9 -8 000 103 06 07 -10.1 -12.5 29.12 11 16 95 69 000 89 97109 -10 -8 -9 000 104 06 08 -10.4 -12.8 29.13 11 16 96 71 000 89 97108 -10 -8 -8 000 105 06 09 -10.8 -13.5 29.14 11 16 93 67 000 87 96106 -10 -8 -8 000 106 06 10 -10.4 -13.1 29.14 10 13 88 62 000 87 90108 -9 -8 -8 000 107 06 11 -10.2 -12.7 29.15 8 11 83 58 000 87 79101 -9 -7 -8 000 108 06 12 -9.9 -12.4 29.15 8 11 95 70 001 87 83 90 -9 -8 -8 000 109 06 13 -9.4 -11.9 29.16 7 9 94 69 002 87 82 87 -9 -8 -8 000 110 06 14 -8.9 -11.4 29.16 6 7 95 70 001 87 75 82 -8 -7 -8 000 111 06 15 -8.6 -11.2 29.16 5 6 99 73 001 87 66 80 -8 -7 -8 000 112 06 16 -8.6 -10.9 29.16 5 6 97 71 001 88 58 78 -8 -8 -8 000 113 06 17 -8.6 -10.8 29.17 4 5 95 70 000 90 61 76 -8 -8 -8 000 114 06 18 -9.0 -10.8 29.18 3 5 94 68 000 92 67 73 -8 -8 -8 000 115 06 19 -9.7 -11.4 29.18 3 4 95 70 000 95 69 70 -8 -8 -8 000 116 06 20 -10.8 -11.9 29.18 3 4 110 85 000 101 75 68 -8 -8 -8 000 117 06 21 -12.3 -12.6 29.19 4 5 124 98 001 111 75 71 -8 -8 -8 000 118 06 22 -13.9 -14.4 29.19 4 6 123 98 001 113 75 75 -8 -8 -8 000 119 06 23 -16.6 -17.3 29.19 3 5 110 85 001 117 73 79 -9 -8 -8 000 120 07 00 -19.3 -19.6 29.20 1 4 93 67 001 120 79 82 -9 -8 -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.