Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 12AUG 2026 Clouds Bases and Tops are now agl HR Valid 2m Tmp 2m Dpt 10m Dir 10m Spd TPrcp CPrcp 1000-500 500mb 850mb 500mb MSLP TCC PRS WX Low Middle High Max Min Sfc Snowfall PWAT 925mb Deg F Deg F deg kt in. in. Thk GPH Tmp Tmp mb % TEXT Clouds Clouds Clouds Tmp Tmp Vis in in Tmp 0 08/12 12Z 54 52 259 0 0.00 0.00 575 585 22.3 -9.2 1012.4 100 CLR CLR 000OVC000 **** **** 15.1 0.0 0.882 20.9 3 08/12 15Z 58 53 185 1 0.00 0.00 574 585 21.4 -9.3 1013.0 100 CLR CLR 289OVC389 58 54 15.0 0.0 0.830 19.4 6 08/12 18Z 68 54 289 1 0.00 0.00 574 585 20.8 -9.6 1012.2 100 CLR CLR 286OVC387 68 54 15.0 0.0 0.807 18.4 9 08/12 21Z 74 55 289 7 0.00 0.00 575 584 21.5 -10.0 1010.0 99 CLR CLR 272OVC361 74 68 15.0 0.0 0.896 19.2 12 08/13 00Z 68 55 296 9 0.00 0.00 575 583 21.9 -9.3 1008.8 99 CLR 215SCT247 261OVC348 75 65 15.1 0.0 0.949 20.0 15 08/13 03Z 60 54 289 7 0.00 0.00 574 582 21.2 -9.2 1009.2 43 CLR 217FEW247 250SCT321 68 60 15.0 0.0 0.993 18.0 18 08/13 06Z 57 54 232 3 0.00 0.00 573 582 21.5 -9.5 1010.4 34 CLR 217FEW247 249SCT316 68 56 15.0 0.0 1.014 15.9 21 08/13 09Z 56 53 191 3 0.00 0.00 572 580 21.2 -10.0 1009.6 100 011FEW017 CLR 246OVC305 57 56 15.0 0.0 1.023 13.9 24 08/13 12Z 56 53 157 6 0.00 0.00 571 579 19.6 -10.5 1010.3 98 012FEW021 218FEW245 247BKN311 57 55 15.0 0.0 1.019 11.6 27 08/13 15Z 59 53 162 7 0.00 0.00 570 580 18.6 -10.3 1011.4 100 014SCT023 210BKN246 251BKN329 59 56 15.0 0.0 0.983 11.5 30 08/13 18Z 63 54 230 10 0.00 0.00 569 580 17.8 -10.5 1012.3 98 010BKN026 210SCT246 257BKN329 63 56 15.0 0.0 0.988 11.0 33 08/13 21Z 67 55 248 14 0.00 0.00 570 580 17.6 -10.4 1011.6 94 018SCT030 230FEW246 294BKN337 67 63 15.0 0.0 0.955 13.3 36 08/14 00Z 64 55 247 14 0.00 0.00 570 580 16.6 -9.8 1011.5 66 018FEW030 CLR 295BKN338 67 62 15.0 0.0 0.930 12.1 39 08/14 03Z 58 54 241 10 0.00 0.00 569 580 16.8 -9.3 1012.4 59 014FEW024 CLR 298BKN330 64 58 15.0 0.0 0.840 11.9 42 08/14 06Z 58 54 239 9 0.00 0.00 569 580 17.2 -9.4 1013.6 70 009SCT026 CLR 297SCT333 64 57 15.0 0.0 0.803 10.2 45 08/14 09Z 58 54 216 6 0.00 0.00 568 579 16.5 -9.6 1013.6 98 000BKN030 CLR 301BKN351 58 58 15.0 0.0 0.794 10.0 48 08/14 12Z 58 55 200 4 0.00 0.00 567 579 15.7 -9.8 1014.0 99 000BKN032 CLR 300BKN350 59 58 15.0 0.0 0.786 9.9 51 08/14 15Z 60 55 204 3 0.00 0.00 567 580 15.1 -9.9 1015.5 95 008BKN034 CLR 276FEW350 60 58 15.0 0.0 0.771 10.2 54 08/14 18Z 65 54 246 6 0.00 0.00 567 581 14.7 -9.8 1016.2 89 010BKN033 CLR 279FEW350 65 58 15.0 0.0 0.772 11.0 57 08/14 21Z 68 54 263 11 0.00 0.00 568 581 15.0 -9.6 1016.0 17 024FEW031 CLR CLR 68 65 15.0 0.0 0.744 13.2 60 08/15 00Z 64 54 271 11 0.00 0.00 568 581 14.9 -9.5 1015.7 8 023FEW031 CLR CLR 68 63 15.0 0.0 0.757 12.7 63 08/15 03Z 58 54 275 6 0.00 0.00 568 582 16.2 -9.6 1016.0 7 017FEW024 CLR CLR 64 58 15.0 0.0 0.729 12.7 66 08/15 06Z 56 54 264 4 0.00 0.00 568 582 16.6 -9.5 1016.8 10 018FEW023 CLR CLR 64 56 14.4 0.0 0.779 13.1 69 08/15 09Z 58 53 252 5 0.00 0.00 568 582 16.3 -9.5 1016.9 68 016BKN024 CLR CLR 58 56 14.4 0.0 0.759 12.2 72 08/15 12Z 58 53 263 5 0.00 0.00 567 581 15.8 -9.7 1017.2 80 014BKN025 CLR CLR 58 56 14.5 0.0 0.729 10.8 75 08/15 15Z 59 53 248 3 0.00 0.00 567 582 15.5 -9.3 1018.2 90 005BKN028 CLR CLR 59 57 15.0 0.0 0.699 11.3 78 08/15 18Z 65 53 277 6 0.00 0.00 568 584 15.8 -8.6 1018.6 74 010BKN027 CLR CLR 65 57 15.0 0.0 0.683 12.3 81 08/15 21Z 67 54 284 11 0.00 0.00 569 584 16.6 -8.4 1018.4 1 CLR CLR 377FEW403 67 65 15.0 0.0 0.690 14.3 84 08/16 00Z 64 54 279 9 0.00 0.00 570 584 16.8 -8.5 1017.5 33 CLR CLR 338SCT405 67 64 15.0 0.0 0.734 16.9 87 08/16 03Z 57 54 280 5 0.00 0.00 570 585 17.4 -8.5 1017.8 97 CLR CLR 303BKN374 64 57 14.4 0.0 0.669 18.9 90 08/16 06Z 56 53 268 4 0.00 0.00 570 586 17.9 -8.4 1018.8 58 010FEW015 CLR 303SCT374 64 56 13.5 0.0 0.702 18.6 93 08/16 09Z 56 53 253 4 0.00 0.00 570 585 17.6 -8.3 1018.8 35 008SCT015 CLR CLR 56 55 15.0 0.0 0.674 17.8 96 08/16 12Z 55 52 252 3 0.00 0.00 570 585 17.4 -8.4 1018.6 60 008BKN015 CLR 392FEW404 57 54 15.0 0.0 0.634 18.1 99 08/16 15Z 57 53 240 3 0.00 0.00 570 586 17.4 -8.7 1019.6 83 008BKN014 CLR 400FEW420 57 55 15.0 0.0 0.588 18.5 102 08/16 18Z 67 53 287 4 0.00 0.00 571 587 17.6 -8.0 1019.3 62 008BKN015 CLR 411FEW429 67 55 15.0 0.0 0.590 19.2 105 08/16 21Z 70 53 289 8 0.00 0.00 572 588 18.4 -7.2 1018.6 9 CLR CLR 412FEW443 71 67 15.0 0.0 0.577 19.8 108 08/17 00Z 67 54 287 8 0.00 0.00 573 588 18.9 -6.7 1017.6 10 CLR CLR 390FEW417 71 65 15.0 0.0 0.581 21.1 111 08/17 03Z 59 53 282 5 0.00 0.00 573 588 19.5 -6.8 1017.5 70 CLR CLR 336BKN378 67 59 15.1 0.0 0.526 21.2 114 08/17 06Z 56 53 256 3 0.00 0.00 573 589 19.5 -6.6 1018.6 80 CLR CLR 305BKN361 67 56 13.4 0.0 0.633 20.5 117 08/17 09Z 55 53 268 3 0.00 0.00 573 588 20.0 -6.4 1018.3 25 CLR CLR 301FEW334 56 55 14.9 0.0 0.604 20.3 120 08/17 12Z 55 53 273 3 0.00 0.00 573 588 19.7 -7.0 1018.1 51 CLR CLR 307SCT410 56 55 14.9 0.0 0.585 19.8 123 08/17 15Z 58 53 291 2 0.00 0.00 573 588 19.5 -7.5 1018.6 100 CLR CLR 293OVC418 58 54 15.0 0.0 0.579 20.2 126 08/17 18Z 67 54 286 5 0.00 0.00 573 589 19.0 -7.0 1018.7 72 CLR CLR 310BKN413 67 54 15.0 0.0 0.556 20.1 129 08/17 21Z 69 54 290 9 0.00 0.00 574 589 19.5 -6.7 1017.6 99 CLR CLR 321OVC449 71 67 15.0 0.0 0.544 21.0 132 08/18 00Z 63 53 282 8 0.00 0.00 574 589 20.1 -6.9 1017.0 99 CLR CLR 303OVC447 71 62 15.0 0.0 0.555 21.6 135 08/18 03Z 57 54 276 6 0.00 0.00 574 589 20.2 -6.2 1017.4 98 CLR CLR 290BKN380 63 57 14.5 0.0 0.623 20.9 138 08/18 06Z 57 54 262 4 0.00 0.00 575 590 20.8 -5.0 1017.8 99 008FEW014 CLR 282OVC397 63 56 13.6 0.0 0.682 21.8 141 08/18 09Z 56 53 248 4 0.00 0.00 574 589 21.0 -5.3 1017.2 94 008BKN015 234FEW248 279BKN403 57 56 13.4 0.0 0.712 21.9 144 08/18 12Z 56 53 231 3 0.00 0.00 575 588 21.0 -6.1 1016.4 97 007BKN016 235FEW248 301BKN399 57 56 14.0 0.0 0.750 22.4 147 08/18 15Z 58 53 202 3 0.00 0.00 574 588 20.4 -6.0 1016.8 76 009BKN016 236FEW249 304BKN350 58 55 15.0 0.0 0.737 21.9 150 08/18 18Z 67 53 268 4 0.00 0.00 575 589 20.5 -5.9 1016.6 85 009SCT016 236FEW250 354BKN394 67 55 15.0 0.0 0.666 22.1 153 08/18 21Z 71 53 286 7 0.00 0.00 576 589 20.7 -4.6 1015.2 35 CLR CLR 418SCT443 71 67 15.2 0.0 0.643 22.9 156 08/19 00Z 66 53 270 7 0.00 0.00 577 590 20.8 -4.0 1014.6 67 CLR CLR 366BKN419 72 65 15.0 0.0 0.724 22.8 159 08/19 03Z 59 53 235 5 0.00 0.00 578 590 20.7 -3.1 1014.2 82 CLR CLR 334BKN404 66 59 15.0 0.0 0.681 24.7 162 08/19 06Z 57 53 199 6 0.00 0.00 578 590 21.0 -2.5 1014.6 56 CLR CLR 337BKN400 66 57 15.0 0.0 0.653 23.7 165 08/19 09Z 55 53 192 6 0.00 0.00 578 590 20.9 -2.3 1014.2 71 FEW CLR 346BKN404 57 55 15.0 0.0 0.618 22.8 168 08/19 12Z 55 53 195 5 0.00 0.00 577 589 20.6 -3.3 1014.2 54 009FEW012 CLR 345SCT397 57 55 15.0 0.0 0.648 21.7