Halley site lat/lon = (-75.5560,-25.6200) cell lat/lon = (-75.5669,-25.5697) Forecast initialized at 2026-02-01/12 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 01 12 -7.8 -11.8 28.65 5 6 93 67 000 66 61 77 -7 -7 -7 000 1 01 13 -7.0 -11.0 28.64 4 7 95 70 000 74 62 79 -7 -7 -7 000 2 01 14 -6.6 -10.9 28.63 3 5 96 70 000 73 59 77 -7 -6 -7 000 3 01 15 -6.2 -10.6 28.63 2 3 97 71 000 73 56 77 -6 -6 -7 000 4 01 16 -6.1 -10.3 28.62 1 3 118 93 000 73 53 76 -6 -6 -7 000 5 01 17 -6.0 -9.9 28.62 0 2 169 144 000 75 50 76 -6 -6 -7 000 6 01 18 -6.3 -9.3 28.61 1 2 193 167 001 79 47 75 -6 -6 -7 000 7 01 19 -7.1 -9.6 28.60 3 4 194 168 000 83 46 76 -6 -6 -7 000 8 01 20 -8.2 -10.2 28.59 4 5 207 181 000 89 47 76 -5 -6 -7 000 9 01 21 -9.5 -11.1 28.60 4 7 224 198 000 95 51 75 -5 -6 -6 000 10 01 22 -11.1 -12.1 28.60 5 8 239 213 000 101 54 75 -5 -5 -6 000 11 01 23 -12.6 -13.0 28.58 6 9 243 218 000 110 57 76 -5 -5 -6 000 12 02 00 -14.0 -14.5 28.58 6 8 231 205 000 113 62 75 -5 -5 -6 000 13 02 01 -16.7 -17.2 28.58 4 8 201 175 000 117 65 73 -5 -5 -6 000 14 02 02 -18.5 -19.0 28.58 3 5 202 176 000 119 67 64 -5 -5 -6 000 15 02 03 -19.3 -20.0 28.59 4 4 190 165 000 120 73 53 -6 -6 -6 000 16 02 04 -19.3 -20.0 28.59 4 6 178 152 000 120 67 49 -6 -6 -6 000 17 02 05 -18.4 -18.9 28.59 4 7 165 139 000 118 51 48 -6 -6 -6 000 18 02 06 -17.4 -18.1 28.60 5 7 141 116 000 117 39 48 -6 -6 -6 000 19 02 07 -17.5 -17.8 28.61 4 9 113 88 000 118 41 46 -7 -6 -6 000 20 02 08 -18.0 -18.2 28.61 2 7 98 73 000 119 46 45 -7 -6 -6 000 21 02 09 -16.5 -17.9 28.62 3 6 113 87 000 105 50 44 -7 -6 -6 000 22 02 10 -14.6 -16.6 28.63 3 5 101 76 000 98 53 43 -7 -6 -6 000 23 02 11 -12.7 -14.7 28.63 3 6 83 57 000 95 56 42 -7 -6 -6 000 24 02 12 -10.7 -12.7 28.63 2 8 59 33 000 93 55 41 -7 -6 -6 000 25 02 13 -8.7 -11.3 28.64 3 7 42 16 000 87 54 40 -7 -6 -6 000 26 02 14 -7.5 -11.4 28.64 3 5 34 9 000 76 52 42 -6 -6 -6 000 27 02 15 -7.0 -11.5 28.65 1 2 71 46 000 73 49 48 -6 -6 -6 000 28 02 16 -6.8 -10.6 28.66 3 3 124 98 000 76 46 43 -6 -6 -6 000 29 02 17 -6.9 -9.7 28.65 2 3 154 128 000 79 40 41 -5 -5 -6 000 30 02 18 -7.5 -10.0 28.65 4 4 155 129 000 81 43 39 -5 -5 -7 000 31 02 19 -8.2 -10.8 28.65 3 4 157 132 000 84 56 36 -4 -6 -7 000 32 02 20 -9.2 -12.0 28.65 3 4 166 140 000 84 57 39 -5 -6 -6 000 33 02 21 -10.3 -13.7 28.64 3 4 191 166 000 81 54 42 -5 -5 -5 000 34 02 22 -12.0 -14.4 28.64 3 4 202 176 -001 90 52 35 -5 -5 -5 000 35 02 23 -13.3 -14.0 28.64 4 4 227 202 000 107 48 36 -5 -5 -5 000 36 03 00 -14.6 -14.8 28.65 4 4 235 209 000 114 47 39 -5 -5 -5 000 37 03 01 -15.8 -16.2 28.65 4 4 240 215 000 115 44 38 -5 -5 -5 000 38 03 02 -17.7 -18.3 28.66 4 4 215 189 000 118 45 39 -5 -5 -5 000 39 03 03 -19.6 -20.4 28.66 3 3 199 173 000 120 41 40 -5 -5 -5 000 40 03 04 -20.7 -21.5 28.66 2 2 202 177 000 122 42 41 -5 -5 -5 000 41 03 05 -20.9 -21.7 28.67 2 2 166 140 000 122 50 44 -5 -5 -5 000 42 03 06 -19.6 -19.9 28.69 2 4 126 100 000 121 53 52 -5 -6 -6 000 43 03 07 -18.4 -18.6 28.70 1 4 106 80 -002 119 51 56 -5 -6 -6 000 44 03 08 -17.1 -17.2 28.71 1 4 89 64 -002 118 47 50 -6 -6 -6 000 45 03 09 -15.0 -15.4 28.72 3 4 69 43 000 113 46 51 -6 -6 -6 000 46 03 10 -13.0 -15.0 28.75 5 6 62 37 001 95 49 53 -6 -6 -6 000 47 03 11 -12.6 -14.2 28.77 8 10 70 45 -001 98 56 53 -7 -7 -6 000 48 03 12 -11.0 -12.4 28.79 10 12 76 51 -002 99 56 56 -8 -7 -7 000 49 03 13 -10.3 -11.8 28.82 14 19 80 54 -002 97 56 63 -10 -8 -7 000 50 03 14 -9.0 -10.6 28.83 14 19 79 53 000 95 60 79 -10 -7 -7 000 51 03 15 -8.4 -9.8 28.85 14 18 74 48 -001 96 74 95 -9 -7 -7 000 52 03 16 -6.4 -7.6 28.87 14 18 73 47 -001 96102109 -7 -7 -7 001 53 03 17 -4.8 -6.0 28.88 14 18 73 47 -001 94106107 -6 -7 -7 011 54 03 18 -5.5 -6.8 28.89 15 18 78 52 -002 94105 97 -6 -7 -7 007 55 03 19 -6.1 -7.3 28.89 12 19 82 57 000 95 97 99 -6 -6 -7 001 56 03 20 -6.7 -7.7 28.90 11 20 86 60 000 98 91103 -6 -6 -7 000 57 03 21 -7.1 -7.4 28.91 10 21 88 63 000 105101101 -6 -6 -7 000 58 03 22 -6.6 -6.8 28.91 11 20 88 62 000 106101107 -6 -6 -6 001 59 03 23 -5.4 -6.2 28.92 13 20 85 60 000 98106110 -6 -6 -6 003 60 04 00 -5.9 -6.4 28.93 11 20 85 60 000 101105102 -5 -6 -6 005 61 04 01 -6.5 -7.3 28.94 11 20 86 60 000 100105103 -5 -6 -6 006 62 04 02 -6.8 -7.7 28.94 10 19 89 63 000 100105107 -5 -6 -6 005 63 04 03 -6.9 -7.6 28.94 10 17 89 64 000 100102106 -5 -6 -6 006 64 04 04 -7.0 -7.5 28.95 9 16 86 60 000 104103107 -5 -6 -7 006 65 04 05 -6.4 -7.0 28.95 9 16 81 55 000 101 97105 -5 -6 -7 017 66 04 06 -6.6 -7.2 28.95 8 15 81 55 000 102 98105 -5 -6 -7 014 67 04 07 -7.0 -7.5 28.96 7 12 83 58 000 104 97105 -5 -6 -7 008 68 04 08 -6.6 -7.3 28.97 8 13 84 59 000 101101105 -6 -6 -7 006 69 04 09 -6.3 -7.2 28.97 8 12 83 58 000 99103101 -6 -6 -7 006 70 04 10 -6.3 -7.2 28.98 8 12 79 53 000 99106 94 -7 -7 -7 002 71 04 11 -5.0 -6.0 28.98 10 11 72 46 000 97108 94 -6 -7 -7 000 72 04 12 -4.4 -5.3 28.98 9 10 56 31 000 96107 96 -6 -7 -7 000 73 04 13 -4.2 -5.1 28.99 9 10 59 33 000 97107 99 -6 -7 -7 001 74 04 14 -4.5 -5.4 28.99 9 9 71 45 000 97107102 -6 -7 -6 001 75 04 15 -4.7 -5.3 28.99 8 10 70 45 000 99 99106 -6 -6 -6 000 76 04 16 -3.7 -4.6 28.99 9 11 62 37 000 96106107 -5 -6 -6 001 77 04 17 -3.4 -4.7 28.99 10 11 59 33 000 92106105 -5 -6 -7 003 78 04 18 -3.6 -4.8 29.00 9 11 61 36 000 93106103 -5 -6 -7 003 79 04 19 -3.4 -4.8 29.00 7 10 70 45 000 91106108 -4 -6 -7 001 80 04 20 -3.5 -4.5 29.01 7 9 83 58 000 95106109 -5 -6 -7 010 81 04 21 -3.9 -4.7 29.00 8 11 88 63 000 97106104 -5 -6 -7 006 82 04 22 -4.2 -4.9 29.01 8 12 88 62 000 98106 97 -4 -6 -7 003 83 04 23 -6.0 -6.2 29.02 9 16 90 64 -001 105 99 98 -5 -5 -7 001 84 05 00 -6.3 -6.5 29.02 9 17 102 77 000 105106 99 -6 -6 -7 003 85 05 01 -6.5 -6.6 29.02 12 16 80 54 000 106104105 -7 -5 -6 007 86 05 02 -7.1 -7.3 29.02 11 16 84 58 000 106101107 -6 -5 -6 001 87 05 03 -7.5 -8.1 29.02 11 15 84 58 000 102102100 -6 -6 -6 002 88 05 04 -7.2 -8.2 29.02 10 15 81 55 002 98104106 -6 -7 -8 004 89 05 05 -7.0 -7.8 29.03 10 14 75 50 000 100106102 -6 -7 -8 006 90 05 06 -7.0 -7.9 29.03 9 14 75 50 000 100103111 -7 -7 -8 006 91 05 07 -6.8 -7.8 29.02 9 12 81 55 000 99105111 -7 -7 -7 004 92 05 08 -6.5 -7.5 29.03 9 12 77 52 000 98107111 -7 -7 -8 005 93 05 09 -6.4 -7.3 29.03 10 12 78 52 000 99105111 -7 -7 -8 005 94 05 10 -6.7 -7.7 29.04 11 13 77 52 000 98105108 -8 -8 -8 006 95 05 11 -6.7 -7.8 29.04 10 13 74 48 -001 98103109 -8 -8 -8 004 96 05 12 -6.5 -7.7 29.05 10 13 73 48 000 96100109 -8 -8 -8 001 97 05 13 -6.1 -7.4 29.04 10 13 72 46 000 94 95111 -7 -7 -8 001 98 05 14 -5.6 -7.1 29.04 9 11 73 48 000 93 93112 -7 -7 -8 001 99 05 15 -5.4 -7.0 29.03 9 10 75 49 000 92 94111 -7 -7 -8 000 100 05 16 -5.5 -7.2 29.03 8 9 77 52 000 91 92110 -7 -7 -8 000 101 05 17 -5.5 -7.3 29.03 7 9 85 60 000 90 88110 -6 -7 -8 000 102 05 18 -5.5 -7.2 29.04 7 9 91 65 000 91 88112 -6 -7 -7 000 103 05 19 -5.9 -7.4 29.05 8 9 93 67 000 93 86112 -6 -7 -7 000 104 05 20 -6.8 -8.1 29.05 8 10 94 69 000 96 83112 -6 -6 -7 000 105 05 21 -7.4 -8.0 29.05 7 11 96 70 000 103 83112 -6 -6 -7 000 106 05 22 -7.3 -7.4 29.06 8 11 96 70 000 107 89112 -6 -7 -7 000 107 05 23 -7.3 -7.5 29.06 8 12 103 77 000 107 95112 -7 -7 -8 000 108 06 00 -7.5 -7.7 29.07 8 13 106 81 000 107 97112 -7 -7 -8 000 109 06 01 -7.9 -8.3 29.08 8 14 105 80 000 106 99112 -7 -7 -8 000 110 06 02 -7.9 -8.8 29.08 9 15 99 73 000 100106112 -7 -7 -8 002 111 06 03 -7.5 -8.5 29.08 9 15 92 67 -001 99107111 -7 -7 -8 011 112 06 04 -7.2 -8.1 29.08 9 15 85 60 -002 100107 99 -8 -7 -8 006 113 06 05 -8.1 -8.8 29.09 10 16 92 66 000 102103 99 -8 -8 -8 006 114 06 06 -8.2 -9.1 29.10 11 18 87 62 001 100104109 -8 -8 -8 010 115 06 07 -7.8 -9.0 29.11 12 18 84 58 000 97101111 -8 -8 -8 007 116 06 08 -7.4 -8.6 29.12 12 17 81 56 000 97100111 -8 -8 -8 007 117 06 09 -7.5 -8.7 29.13 12 16 81 55 001 97101111 -8 -8 -8 011 118 06 10 -7.5 -8.8 29.14 12 15 80 54 -001 96100108 -8 -8 -8 008 119 06 11 -7.9 -9.3 29.14 11 15 80 55 -001 96 98103 -8 -8 -8 002 120 06 12 -7.5 -9.0 29.15 10 14 78 52 000 94 98101 -8 -8 -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.