USAP Black Island site lat/lon = (-78.1274,166.1499) cell lat/lon = (-78.1146,166.1538) Forecast initialized at 2026-10-17/12 UTC MPAS cell scale: 2.4 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 17 12 -17.3 -22.9 28.73 7 7 171 337 -005 59 41 49 -14-13-14 000 1 17 13 -17.4 -22.9 28.74 12 17 217 23 -030 70 43 55 -14-14-15 000 2 17 14 -16.2 -23.1 28.73 3 9 187 353 016 62 41 71 -13-13-14 000 3 17 15 -17.8 -23.1 28.71 1 5 265 71 010 71 43 74 -13-13-13 000 4 17 16 -18.7 -24.0 28.68 5 7 258 64 007 68 44 83 -13-13-14 000 5 17 17 -19.5 -24.0 28.69 6 16 295 101 002 78 45 78 -12-13-13 000 6 17 18 -19.8 -24.3 28.68 4 6 293 99 001 75 48 83 -14-14-13 000 7 17 19 -20.6 -23.9 28.68 6 12 291 97 003 83 57 87 -14-14-14 000 8 17 20 -17.9 -23.4 28.69 6 9 257 63 -004 63 65 88 -13-13-13 000 9 17 21 -16.9 -22.9 28.66 5 10 271 77 -006 64 71 88 -13-14-13 000 10 17 22 -16.4 -22.0 28.65 6 17 303 109 -006 71 77 85 -13-13-12 001 11 17 23 -16.0 -21.0 28.63 7 11 294 100 -010 76 73 91 -12-13-12 000 12 18 00 -14.7 -18.3 28.63 6 11 307 113 -002 85 65106 -12-12-13 000 13 18 01 -13.1 -18.6 28.63 7 10 308 114 -018 72 73 95 -11-11-12 000 14 18 02 -13.3 -15.9 28.61 5 11 299 105 -006 92 70100 -11-12-13 000 15 18 03 -13.1 -15.8 28.60 8 14 301 107 001 90 72 86 -10-11-11 000 16 18 04 -12.0 -14.5 28.59 10 26 311 117 -011 88 67 99 -9 -9-10 000 17 18 05 -12.7 -13.2 28.60 12 16 242 48 -010 103 74 89 -10-10-11 000 18 18 06 -9.5 -13.7 28.56 14 30 186 352 -003 71 59 90 -7 -8 -9 000 19 18 07 -12.4 -14.1 28.56 8 29 208 14 -004 88 73 81 -8 -9-10 000 20 18 08 -9.1 -12.7 28.55 17 32 195 1 -007 77 67 77 -8 -8 -9 000 21 18 09 -8.0 -10.8 28.56 20 45 184 351 -018 83 73 84 -7 -8 -9 000 22 18 10 -9.8 -13.1 28.57 10 47 214 20 -009 79 81 87 -7 -8 -9 001 23 18 11 -6.1 -10.8 28.55 36 51 197 4 -016 72 79 71 -6 -7 -9 003 24 18 12 -5.6 -12.4 28.53 40 56 194 1 -005 61 61 68 -6 -7 -8 001 25 18 13 -7.1 -10.5 28.54 32 49 185 351 -006 78 61 66 -6 -7 -8 000 26 18 14 -7.9 -11.0 28.56 44 61 183 349 -022 82 69 62 -8 -8 -9 002 27 18 15 -7.8 -13.0 28.57 46 61 184 350 -026 69 62 65 -8 -8 -9 004 28 18 16 -8.1 -12.0 28.57 48 64 183 349 -028 78 69 71 -8 -9-10 006 29 18 17 -8.1 -12.1 28.57 49 67 184 351 -037 78 75 72 -9 -9-10 009 30 18 18 -8.8 -13.1 28.58 52 70 186 353 -007 76 86 79 -9-10-11 003 31 18 19 -9.3 -13.2 28.62 50 68 185 351 -007 79 78 81 -10-10-11 003 32 18 20 -9.5 -13.6 28.64 48 66 186 352 -009 78 82 82 -10-11-12 013 33 18 21 -9.7 -13.2 28.67 45 64 189 355 -059 83 93 89 -10-12-13 021 34 18 22 -9.5 -13.6 28.69 44 63 189 355 -090 78 93 91 -10-12-13 008 35 18 23 -9.4 -14.0 28.71 44 62 189 355 -042 75 89 86 -10-12-13 000 36 19 00 -9.1 -14.0 28.71 49 66 186 352 045 73 87 72 -10-11-13 000 37 19 01 -8.8 -13.6 28.73 45 64 188 355 -104 74 87 76 -10-11-12 000 38 19 02 -8.1 -13.3 28.74 46 64 186 352 052 71 80 73 -9-10-11 000 39 19 03 -7.8 -12.9 28.73 48 67 185 351 063 71 84 49 -9-10-12 000 40 19 04 -7.9 -13.1 28.73 50 67 184 350 068 70 81 67 -8-10-11 000 41 19 05 -7.5 -12.7 28.74 45 61 186 352 090 70 82 50 -8-10-11 000 42 19 06 -7.1 -12.9 28.74 45 62 184 350 114 67 77 34 -8 -9-11 000 43 19 07 -6.6 -13.1 28.75 46 63 185 351 072 62 71 45 -7 -8-10 000 44 19 08 -6.9 -12.6 28.76 44 61 181 347 087 66 73 52 -7 -8-10 000 45 19 09 -7.1 -12.6 28.78 41 59 182 349 041 67 73 60 -7 -8-10 000 46 19 10 -6.9 -11.9 28.78 39 57 186 352 -026 70 78 70 -7 -8-10 002 47 19 11 -7.2 -11.8 28.79 38 56 186 352 020 73 81 83 -7 -9-10 007 48 19 12 -7.4 -12.7 28.78 38 58 185 352 006 69 78 88 -8 -9-10 002 49 19 13 -7.8 -13.8 28.78 35 55 181 347 -031 65 69 84 -8 -9-10 001 50 19 14 -8.2 -14.9 28.79 29 53 189 355 -146 61 63 94 -8 -9-10 001 51 19 15 -8.2 -13.7 28.80 29 51 189 355 -117 68 73 96 -8 -9-10 000 52 19 16 -7.8 -13.1 28.81 28 48 187 353 -090 69 71 84 -8 -9-10 000 53 19 17 -7.8 -13.5 28.81 36 53 190 356 015 67 72 72 -8 -9-11 000 54 19 18 -7.7 -13.3 28.80 35 51 192 358 041 68 74 62 -8 -9-11 000 55 19 19 -7.7 -13.6 28.79 38 53 194 0 030 66 75 65 -8 -9-11 000 56 19 20 -7.7 -13.8 28.78 37 55 192 359 -057 65 73 70 -8-10-11 000 57 19 21 -7.8 -13.8 28.77 41 58 186 352 -020 66 72 53 -8-10-11 001 58 19 22 -7.7 -14.4 28.80 36 52 195 1 -060 62 70 71 -8-10-11 000 59 19 23 -7.5 -15.7 28.81 34 51 193 359 -087 55 61 63 -8 -9-11 000 60 20 00 -7.0 -15.8 28.82 31 47 192 358 -012 52 58 64 -8 -9-10 000 61 20 01 -6.7 -15.7 28.79 41 55 193 359 -005 52 56 51 -7 -9-10 000 62 20 02 -6.4 -15.7 28.78 40 56 196 2 -001 50 54 58 -7 -8-10 000 63 20 03 -6.0 -15.2 28.79 32 51 193 359 -226 51 55 64 -7 -8 -9 000 64 20 04 -6.1 -15.0 28.79 44 59 194 0 -077 52 56 59 -7 -8-10 000 65 20 05 -6.0 -14.8 28.79 32 49 194 0 -037 52 53 75 -6 -8 -9 000 66 20 06 -5.8 -14.9 28.80 30 47 201 7 004 51 56 84 -6 -8 -9 000 67 20 07 -6.0 -14.5 28.81 33 48 198 4 -028 54 61 86 -7 -8-10 000 68 20 08 -6.5 -13.2 28.82 27 43 195 2 009 62 65 89 -7 -8-10 000 69 20 09 -6.4 -13.3 28.82 27 47 195 2 -072 60 65 92 -7 -8 -9 000 70 20 10 -6.8 -13.1 28.82 29 48 194 0 -024 64 67 90 -7 -8-10 000 71 20 11 -9.0 -14.0 28.84 31 52 197 3 -057 71 63 75 -8 -9-10 000 72 20 12 -7.3 -14.6 28.83 35 55 192 359 -001 58 59 71 -7 -8 -9 000 73 20 13 -6.8 -14.9 28.86 22 46 214 21 -006 54 58 71 -7 -8-10 000 74 20 14 -6.7 -15.1 28.83 36 56 204 10 -008 54 56 67 -7 -8 -9 000 75 20 15 -7.3 -15.8 28.84 42 60 198 4 027 53 58 54 -8 -9-10 000 76 20 16 -8.3 -15.1 28.86 22 49 200 6 046 60 57 59 -8 -9-11 000 77 20 17 -7.2 -15.2 28.85 33 54 196 3 063 55 43 68 -7 -7 -8 000 78 20 18 -6.7 -17.6 28.85 42 57 201 7 017 43 49 75 -7 -9-10 000 79 20 19 -7.5 -14.7 28.88 28 48 195 1 -038 60 63 88 -8 -9-11 000 80 20 20 -7.3 -15.6 28.89 28 41 206 13 -019 54 61 92 -8 -9-11 000 81 20 21 -6.9 -16.1 28.86 38 53 189 355 002 51 56 61 -8 -9-10 000 82 20 22 -6.9 -15.2 28.89 36 50 199 5 -032 54 61 79 -8 -9-11 000 83 20 23 -6.9 -14.8 28.88 36 50 196 2 011 57 63 63 -8 -9-11 000 84 21 00 -6.9 -14.7 28.89 36 49 202 8 -016 57 63 67 -8 -9-10 000 85 21 01 -7.7 -13.5 28.88 38 52 194 0 007 68 77 74 -9-10-12 000 86 21 02 -8.0 -13.3 28.89 36 50 193 359 -012 71 80 74 -9-10-12 002 87 21 03 -8.2 -13.0 28.88 37 50 191 358 003 74 81 69 -9-10-12 004 88 21 04 -7.8 -13.0 28.89 36 49 193 359 -028 71 76 71 -9-10-11 004 89 21 05 -7.6 -13.4 28.88 33 49 189 356 -028 68 72 69 -8-10-11 002 90 21 06 -8.5 -14.0 28.90 35 48 188 354 -012 69 74 65 -9-11-12 003 91 21 07 -8.8 -14.0 28.89 30 41 189 355 003 71 68 70 -9-11-12 001 92 21 08 -8.0 -17.0 28.89 31 46 191 357 -021 51 59 74 -8 -9-11 000 93 21 09 -7.4 -16.1 28.88 30 43 198 4 -033 52 58 66 -7 -9-10 000 94 21 10 -10.8 -13.9 28.88 13 33 292 98 -020 83 58 69 -9 -9-10 000 95 21 11 -7.8 -16.6 28.86 29 49 202 9 -032 50 45 60 -7 -8-10 000 96 21 12 -13.6 -14.7 28.87 10 25 235 41 -026 95 51 69 -8 -8 -9 000 97 21 13 -9.9 -15.9 28.85 21 43 205 11 -027 62 48 72 -7 -8-10 000 98 21 14 -7.9 -16.1 28.83 29 49 201 7 019 52 51 68 -7 -9-10 000 99 21 15 -7.4 -16.2 28.82 30 47 205 11 019 50 54 72 -7 -9-10 000 100 21 16 -11.9 -15.8 28.83 7 42 223 29 045 75 53 88 -8 -8-10 000 101 21 17 -9.0 -15.2 28.82 35 47 188 354 -019 64 63 71 -8 -9-10 000 102 21 18 -8.0 -14.7 28.80 35 49 182 348 -103 62 57 68 -7 -8 -9 000 103 21 19 -8.8 -13.0 28.82 15 33 200 6 010 77 69 87 -8 -8 -9 000 104 21 20 -8.3 -13.3 28.82 33 43 184 350 020 72 68 93 -8 -8 -9 000 105 21 21 -7.7 -13.3 28.82 31 43 181 347 -055 68 69 85 -8 -8-10 002 106 21 22 -7.6 -17.0 28.83 31 44 179 345 -050 49 59 71 -8 -9-10 000 107 21 23 -7.2 -15.9 28.84 27 40 180 347 -016 53 54 82 -7 -8 -9 000 108 22 00 -7.9 -15.0 28.85 29 41 177 343 -040 61 59 58 -9 -9-10 000 109 22 01 -7.7 -15.8 28.85 30 40 178 344 -022 56 53 50 -8 -9 -9 000 110 22 02 -7.5 -15.7 28.84 30 40 174 341 -040 56 53 55 -8 -8 -9 000 111 22 03 -7.3 -16.0 28.85 25 33 177 343 -030 53 54 57 -8 -9-10 000 112 22 04 -7.8 -19.0 28.86 22 30 172 338 -025 43 32 54 -8 -9-10 000 113 22 05 -7.7 -20.4 28.86 18 26 167 333 000 37 26 45 -8 -9-10 000 114 22 06 -8.4 -20.1 28.87 14 23 171 337 -002 40 35 42 -8 -9-10 000 115 22 07 -9.1 -21.3 28.88 11 19 176 342 008 37 33 39 -8 -9-10 000 116 22 08 -9.4 -19.9 28.89 12 19 175 341 015 42 32 36 -8 -9-10 000 117 22 09 -12.1 -18.2 28.90 7 17 194 0 016 59 36 35 -8 -9-10 000 118 22 10 -13.3 -19.7 28.90 9 20 188 355 009 54 33 37 -8 -9-10 000 119 22 11 -11.4 -19.4 28.90 14 23 179 345 -005 51 37 39 -9 -9-10 000 120 22 12 -12.3 -22.0 28.91 20 30 178 344 -003 48 39 40 -10-10-11 000 * 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.